Tjones has uploaded a new change for review.
https://gerrit.wikimedia.org/r/291939
Change subject: Create initial version of TextCat Demo
......................................................................
Create initial version of TextCat Demo
Create a simple demo page in labs that allows people to interact
with TextCat, to try it out, provide feedback, and consider
using it themselves.
BUG: T134427
Change-Id: I159b4318fa5e1ce36b902b1a19dfb84b1409758e
---
A LICENSE
A README.md
A add.png
A blank.html
A close.png
A external.png
A index.html
A info.png
A textcatdemo.css
A textcatdemo.js
A textcatdemo.php
11 files changed, 1,468 insertions(+), 0 deletions(-)
git pull ssh://gerrit.wikimedia.org:29418/wikimedia/textcat-demo
refs/changes/39/291939/1
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..5f2dd7f
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,505 @@
+ GNU LESSER GENERAL PUBLIC LICENSE
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diff --git a/README.md b/README.md
new file mode 100644
index 0000000..f14370a
--- /dev/null
+++ b/README.md
@@ -0,0 +1,21 @@
+# TextCat Demo
+
+This is a lightweight web-based demo of
[TextCat](https://www.mediawiki.org/wiki/TextCat), the n-gram–based language
identification utility.
+
+You will also need the [PHP-based version of
TextCat](https://github.com/wikimedia/wikimedia-textcat) to run the demo.
+
+## Contents
+
+The package contains the HTML, CSS, JavaScript, and PNG files need to run the
demo on top of an installation of the PHP-based version of TextCat.
+
+## Installation
+
+In the same directory as the TextCat Demo files in this repository, clone a
copy of the PHP-based version of TextCat:
+
+ git clone https://github.com/wikimedia/wikimedia-textcat textcat
+
+The file `index.html` is the entry point into the demo.
+
+## Demo Walkthroughs
+
+There are a number of walkthroughs that show some of the features and
limitations of TextCat in the dropdown list, "Pick a TextCat Demo!"
diff --git a/add.png b/add.png
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+++ b/add.png
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diff --git a/blank.html b/blank.html
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--- /dev/null
+++ b/blank.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<html>
+<body bgcolor=#fff>
+<span style="color:#ccc; font-family:sans-serif">Wikipedia search
results...</span>
+</body>
+</html>
\ No newline at end of file
diff --git a/close.png b/close.png
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+++ b/close.png
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--- /dev/null
+++ b/index.html
@@ -0,0 +1,189 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>WMF Discovery—TextCat Demo</title>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<meta name="description" content="Live demo of modernized TextCat libraries
for language detection, from the Wikimedia Foundation Discovery team." />
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<link rel="stylesheet" type="text/css" href="textcatdemo.css">
+<script src="textcatdemo.js"></script>
+
+<!--
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+http://www.gnu.org/copyleft/gpl.html
+-->
+
+</head>
+<body style="background-color:#f9f9f9; margin:0; font-family:sans-serif">
+
+<div class="container" style="background-color:#fff">
+
+<div id="demoDiv" style="position:fixed; top:2em; right:2em; left:2em; border:
3px solid #dd9; background-color: #ffd; font-size:90%; display:none;
line-height:140%; max-height:50%; overflow: scroll">
+ <div style="float:right; margin:0.25em 0.25em 0 0.1em;" class="dismiss"
onclick="hideDemo(1)"><img src="close.png" style='height:1em' alt="Close demo."
title="Close Demo."></div>
+ <div style="margin:1em">
+ <div id="demoTitle" style="font-weight:bold">
+ Demo Title
+ </div>
+ <div id="demoText">
+ Demo info.
+ </div>
+ <br class='clearIt'>
+ <div class="demoContinue" id="demoContinue"
onclick="demoNext();">Continue ➤</div>
+ <div class="details" style="margin-bottom:-0.5rem;
margin-top:0.4rem">Use “Continue” or the right arrow key to move through the
demo.</div>
+ <br class='clearIt'>
+ </div>
+</div>
+
+<div id="infoPop" style="position:fixed; top:2em; right:2em; left:2em;
border:3px solid #a3b0bf; background-color: #cedff2; font-size:90%;
display:none; line-height:140%; max-height:80%; overflow: scroll">
+ <div style="float:right; margin:0.25em 0.25em 0 0.1em;" class="dismiss"
onclick="closeInfo()"><img src="close.png" style='height:1em' alt="Close info
box." title="Close info box."></div>
+ <div id="infoPopText" style="margin:1em;">
+ <span class="dimText">Additional Information...</span>
+ </div>
+</div>
+
+<div id="TextCatHeaderContainer" class="subContainer"
style="background-color:#f9f9f9; border:1px solid #ccc">
+ <div id="TextCatHeader" style="float:left;">
+ <h1 style="padding:0; margin:0;
font-variant:small-caps;">TextCat Demo<span class=info
onclick="showInfo(0)"><img src='info.png' style='height:1em' alt="Get more
info." title="Get more info."></span></h1>
+ </div>
+
+ <div class="pickADemo" style="float:right;">
+ <select id="demoPicker" onchange="startDemo(this.value);">
+ <option value="-1" selected>Pick a TextCat
Demo!</option>
+ <option value="0">Europanto</option>
+ <option value="1">Names are Weird</option>
+ <option value="2">Unexpected Results</option>
+ <option value="4">Chinese Challenges</option>
+ <option value="3">Gibberish</option>
+ </select>
+ <span class=info onclick="showInfo(1)"><img src='info.png'
style='height:1em' alt="Get more info." title="Get more info."></span>
+ </div>
+
+ <br class='clearIt'>
+</div>
+
+<div class="subContainer odd">
+ <div style="float:right" class="info" onclick="showInfo(2)"><img
src='info.png' style='height:1em' alt="Get more info." title="Get more
info."></div>
+ <div class="LMContainer">
+ <div class="LM" onclick="LMDirSelect(this)" id="LMDirQuery"
style="font-weight:bold">Query Lan­guage Models</div>
+ <div class="LM dimText" onclick="LMDirSelect(this)" id="LMDir"
font-weight:normal">Wiki-Text Lan­guage Models</div>
+ </div>
+ <div class="LMList" id="LMDirQueryModels">
+ <div style="float:left; margin-left:-1.5em"><div
class="dismiss" onclick="LMClear()"><img src="close.png" style='height:1em'
alt="Deselect all languages." title="Deselect all languages."></div><div
class="dismiss" onclick="LMAll()"><img src="add.png" style='height:1em'
alt="Select all languages." title="Select all languages."></div></div>
+ <span class="langModel" onclick="LMToggle(this)"
id="Afrikaans">Afrikaans</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Albanian">Albanian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Arabic">Arabic</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Armenian">Armenian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Basque">Basque</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Belarusian">Belarusian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Bengali">Bengali</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Bosnian">Bosnian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Breton">Breton</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Bulgarian">Bulgarian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Burmese">Burmese</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Cantonese">Cantonese</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Catalan">Catalan</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Chinese">Chinese</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Croatian">Croatian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Czech">Czech</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Danish">Danish</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Dutch">Dutch</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="English">English</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Esperanto">Esperanto</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Estonian">Estonian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Finnish">Finnish</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="French">French</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Georgian">Georgian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="German">German</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Greek">Greek</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Gujarati">Gujarati</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Hebrew">Hebrew</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Hindi">Hindi</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Hungarian">Hungarian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Icelandic">Icelandic</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Indonesian">Indonesian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Irish">Irish</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Italian">Italian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Japanese">Japanese</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Javanese">Javanese</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Kannada">Kannada</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Korean">Korean</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Latin">Latin</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Latvian">Latvian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Lithuanian">Lithuanian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Malay">Malay</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Malayalam">Malayalam</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Marathi">Marathi</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Norwegian">Norwegian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Oriya">Oriya</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Persian">Persian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Polish">Polish</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Portuguese">Portuguese</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Romanian">Romanian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Russian">Russian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Scots">Scots</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Serbian">Serbian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="SerboCroatian">Serbo-Croatian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Slovak">Slovak</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Slovenian">Slovenian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Spanish">Spanish</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Sundanese">Sundanese</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Swedish">Swedish</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Tagalog">Tagalog</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Tamil">Tamil</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Telugu">Telugu</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Thai">Thai</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Turkish">Turkish</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Turkmen">Turkmen</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Ukrainian">Ukrainian</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Urdu">Urdu</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Vietnamese">Vietnamese</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="Welsh">Welsh</span>
+ <span class="langModel" onclick="LMToggle(this)"
id="WesternPunjabi">Western Punjabi</span>
+ <br class='clearIt'>
+ <div class="moreLess" id="moreLess"
onclick="extraLangToggle(this);">more...</div>
+ <br class='clearIt'>
+ <div class="details" style="margin-bottom:-0.5rem;
margin-top:0.4rem">Select the languages to be considered when identifying the
query below.</div>
+ </div>
+ <br class='clearIt'>
+</div>
+
+<div class="subContainer even">
+ <div style="float:right" class="info" onclick="showInfo(3)"><img
src='info.png' style='height:1em' alt="Get more info." title="Get more
info."></div>
+ <div>
+ Query<br>
+ <textarea rows="3" class="embiggen" style="margin-top:0.5em;
font-size:1em" onkeypress="return catchReturn(this);" id="queryTA"></textarea>
+ </div>
+ <div class="details" style="margin-bottom:-0.5rem;">Type your query and
then <enter> to submit your query for language detection. Results will be
shown below.</div>
+ <br class='clearIt'>
+</div>
+
+<div class="subContainer odd">
+ <div style="float:right" class="info" onclick="showInfo(4)"><img
src='info.png' style='height:1em' alt="Get more info." title="Get more
info."></div>
+ <div id="IDresults" class="embiggen" style="min-height:2em">
+ <span class="dimText">Language ID results...</span>
+ </div>
+ <div class="details" style="margin-bottom:-1rem;">Click on the name of
a language to view search results below.</div>
+ <br class='clearIt'>
+</div>
+
+<div class="subContainer even">
+<div>Wikipedia search results</div>
+ <div style="float:right" class="info" onclick="showInfo(5)"><img
src='info.png' style='height:1em' alt="Get more info." title="Get more
info."></div>
+ <iframe src="blank.html" class="embiggen" style="margin:0.5em auto;
height:400px; border:1px solid #ccc; display:block;" name="iframeWiki"></iframe>
+ <br class='clearIt'>
+</div>
+
+
+</div>
+</body>
+</html>
\ No newline at end of file
diff --git a/info.png b/info.png
new file mode 100644
index 0000000..a9cc35c
--- /dev/null
+++ b/info.png
Binary files differ
diff --git a/textcatdemo.css b/textcatdemo.css
new file mode 100644
index 0000000..6606459
--- /dev/null
+++ b/textcatdemo.css
@@ -0,0 +1,186 @@
+.external::after {
+ content: url('external.png');
+ padding-left:0.2em;
+}
+
+.embiggen {
+ width: 95%;
+}
+
+.container {
+ margin: 1em;
+ padding: 0;
+ border: 1px solid #bdf;
+}
+
+.subContainer {
+ margin: .5em;
+ padding: 1em;
+}
+
+.info {
+ font-size: 1rem;
+ cursor: help;
+ vertical-align: middle;
+ font-variant: normal;
+ margin-left: .5rem;
+}
+
+.infoIcon {
+ float: left;
+ font-size: 150%;
+ font-weight: 700;
+ margin: .5rem .25rem .25rem;
+}
+
+.dismiss {
+ font-size: 1rem;
+ cursor: pointer;
+ vertical-align: middle;
+ font-variant: normal;
+}
+
+.LM {
+ float: left;
+ margin: -1px -1px 0 0;
+ padding: .5em;
+ border: 1px solid #a3bfb1;
+ cursor: pointer;
+ background-color: #cef2e0;
+}
+
+.langModel {
+ padding: .1em;
+ cursor: pointer;
+}
+
+.LMList {
+ clear: left;
+ margin-left: 2em;
+ padding-top: .5em;
+ line-height: 150%;
+}
+
+.LMContainer {
+ display: flex;
+}
+
+.dimText {
+ color:#ccc;
+}
+
+.clearIt {
+ clear:both;
+ line-height:0;
+}
+
+.details {
+ color:#999;
+ font-size:90%;
+ font-style:italic;
+ line-height:120%;
+ float:left;
+ clear:left;
+}
+
+.moreLess {
+ float: right;
+ margin-bottom: -1rem;
+ padding: 0 .5em 0 .6em;
+ border: 1px solid #ccc;
+ background-color: #f4f4f4;
+ font-size: 75%;
+ cursor: pointer;
+ font-weight: 700;
+}
+
+.demoContinue {
+ float: right;
+ padding: 0 .5em 0 .6em;
+ margin-top:-0.75rem;
+ border: 1px solid #ccc;
+ background-color: #f4f4f4;
+ font-size: 75%;
+ cursor: pointer;
+ font-weight: 700;
+}
+
+.pickADemo {
+ margin-top: .5em;
+}
+
+.langRes {
+ float: left;
+ margin-right: 1em;
+ margin-bottom: .5em;
+}
+
+.odd,.even {
+ border: 1px solid #ccc;
+}
+
+.odd {
+ background-color: #f5fffa;
+}
+
+.even {
+ background-color: #f5faff;
+}
+
+@media (min-width:450px) and (max-width: 675px) {
+ .embiggen {
+ width: 90%;
+ }
+
+ h1 {
+ font-size: 150%;
+ }
+
+ .pickADemo {
+ margin-top: .1em;
+ }
+}
+
+@media (min-width:301px) and (max-width: 449px) {
+ .embiggen {
+ width: 85%;
+ }
+
+ h1 {
+ font-size: 120%;
+ }
+
+ .pickADemo {
+ margin-top: 0;
+ }
+}
+
+@media (max-width: 300px) {
+ .embiggen {
+ width: 100%;
+ clear: right;
+ }
+
+ h1 {
+ font-size: 120%;
+ }
+
+ .pickADemo {
+ margin-top: .1em;
+ }
+
+ .LMContainer {
+ width: 90%;
+ display: block;
+ clear: right;
+ }
+
+ .LM {
+ float: none;
+ width: 100%;
+ }
+
+ body {
+ font-size: 80%;
+ }
+}
\ No newline at end of file
diff --git a/textcatdemo.js b/textcatdemo.js
new file mode 100644
index 0000000..f50abde
--- /dev/null
+++ b/textcatdemo.js
@@ -0,0 +1,508 @@
+var initLangs = ['English', 'French', 'German', 'Italian', 'Spanish'];
+
+var extraLangs = ['Afrikaans', 'Albanian', 'Armenian', 'Basque', 'Belarusian',
+ 'Bengali', 'Bosnian', 'Breton', 'Bulgarian', 'Burmese', 'Cantonese',
+ 'Catalan', 'Croatian', 'Czech', 'Danish', 'Dutch', 'Esperanto',
+ 'Estonian', 'Finnish', 'Georgian', 'Gujarati', 'Hindi', 'Hungarian',
+ 'Icelandic', 'Indonesian', 'Irish', 'Javanese', 'Kannada',
+ 'Latin', 'Latvian', 'Lithuanian', 'Malay', 'Malayalam', 'Marathi',
+ 'Norwegian', 'Oriya', 'Persian', 'Polish', 'Portuguese', 'Romanian',
+ 'Scots', 'Serbian', 'SerboCroatian', 'Slovak', 'Slovenian', 'Sundanese',
+ 'Swedish', 'Tagalog', 'Tamil', 'Telugu', 'Turkish', 'Turkmen',
+ 'Ukrainian', 'Urdu', 'Vietnamese', 'Welsh', 'WesternPunjabi'
+];
+
+var wikiLangs = ['Afrikaans', 'Albanian', 'Basque', 'Belarusian', 'Bosnian',
+ 'Breton', 'Burmese', 'Cantonese', 'Catalan', 'Croatian', 'Danish',
+ 'Esperanto', 'Estonian', 'Finnish', 'Gujarati', 'Hungarian',
+ 'Icelandic', 'Irish', 'Javanese', 'Kannada', 'Latin', 'Latvian',
+ 'Lithuanian', 'Malay', 'Malayalam', 'Marathi', 'Norwegian', 'Oriya',
+ 'Romanian', 'Scots', 'Serbian', 'SerboCroatian', 'Slovak', 'Slovenian',
+ 'Sundanese', 'Tagalog', 'Turkmen', 'Urdu', 'Welsh', 'WesternPunjabi'
+];
+
+var activeLangs = {};
+
+var showExtraLangs = 0;
+var showWikiLangs = 0;
+
+var textCatDirs = ["LM-query/", "LM/"];
+var textCatDir = textCatDirs[0];
+
+var demoNum = -1;
+var demoStep = -1;
+
+
+function setInitLangs() {
+ initializeLangs(initLangs, 0, 0);
+ }
+
+function initializeLangs(theLangs, theDir, theMore) {
+ activeLangs = {};
+
+ showWikiLangs = 1 - theDir;
+ LMDirSelect(document.querySelectorAll(".LM")[theDir]);
+
+ showExtraLangs = 1 - theMore;
+ extraLangToggle(document.querySelector("#moreLess"));
+
+ for (var i = 0; i < theLangs.length; i++) {
+ var lang = document.querySelector("#" + theLangs[i]);
+ LMToggle(lang);
+ }
+ displayLangs();
+}
+
+document.addEventListener("DOMContentLoaded", function(event) {
+ setInitLangs();
+});
+
+document.addEventListener("keydown", catchKeyDownEvent, false);
+
+function LMClear() {
+ var langs = document.querySelectorAll(".langModel");
+ for (var i = 0; i < langs.length; i++) {
+ langs[i].style.color = "black";
+ langs[i].style.border = "";
+ }
+ activeLangs = {};
+}
+
+function LMAll() {
+ var langs = document.querySelectorAll(".langModel");
+ for (var i = 0; i < langs.length; i++) {
+ langs[i].style.color = "black";
+ langs[i].style.border = "";
+ }
+ activeLangs = {};
+ for (var i = 0; i < langs.length; i++) {
+ LMToggle(langs[i]);
+ }
+}
+
+function LMToggleByName(name) {
+ LMToggle(document.querySelector("#" + name));
+ }
+
+function LMToggle(item) {
+ if (activeLangs[item.id] == 1) {
+ item.style.color = "black";
+ item.style.border = "";
+ activeLangs[item.id] = 0;
+ } else {
+ item.style.color = "green";
+ item.style.border = "1px solid #a3bfb1";
+ activeLangs[item.id] = 1;
+ }
+}
+
+function LMDirSelect(item) {
+ var tabs = document.querySelectorAll(".LM");
+ showWikiLangs = 0;
+ for (var i = 0; i < tabs.length; i++) {
+ if (tabs[i] == item) {
+ tabs[i].style.color = "#000";
+ tabs[i].style.fontWeight = "bold";
+ textCatDir = textCatDirs[i];
+ showWikiLangs = i;
+ } else {
+ tabs[i].style.color = "#ccc";
+ tabs[i].style.fontWeight = "normal";
+ }
+ }
+ displayLangs();
+}
+
+function extraLangToggle(item) {
+ if (showExtraLangs == 1) {
+ item.innerHTML = "more...";
+ showExtraLangs = 0;
+ } else {
+ item.innerHTML = "less...";
+ showExtraLangs = 1;
+ }
+ displayLangs();
+}
+
+function displayLangs() {
+ for (var i = 0; i < extraLangs.length; i++) {
+ var lang = document.querySelector("#" + extraLangs[i]);
+ lang.style.display = showExtraLangs ? "inline" : "none";
+ }
+ for (var i = 0; i < wikiLangs.length; i++) {
+ var lang = document.querySelector("#" + wikiLangs[i]);
+ lang.style.display = showWikiLangs ? "inline" : "none";
+ }
+ if (!showExtraLangs) {
+ for (var i = 0; i < extraLangs.length; i++) {
+ var lang = document.querySelector("#" + extraLangs[i]);
+ lang.style.display = "none";
+ }
+ }
+}
+
+function catchReturn(ta) {
+ if (window.event.keyCode == 13) {
+ submitQuery();
+ return false;
+ }
+ return true;
+}
+
+function catchKeyDownEvent(e) {
+ if (e.keyCode == 13) {
+ submitQuery();
+ return;
+ }
+ if (e.keyCode == 39) {
+ if (document.getElementById("queryTA") != document.activeElement) {
+ demoNext();
+ }
+ return;
+ }
+ if (e.keyCode == 27) {
+ closeInfo();
+ hideDemo(0);
+ return;
+ }
+}
+
+function langIDLink(lang, score, basescore, query) {
+ //
https://en.m.wikipedia.org/w/index.php?title=Special:Search&fulltext=Search&search=qqq
+ var relScore = score / basescore;
+ return "<a target='iframeWiki' href='https://"; + lang +
+ ".m.wikipedia.org/w/index.php?title=Special:Search&" +
+ "fulltext=Search&uselang=en&search=" + encodeURI(query) + "'>" +
+ code2lang[lang] + "</a> (" + relScore.toFixed(4) + ")";
+}
+
+function submitQuery(query = "") {
+ var ta = document.getElementById("queryTA");
+ if (query) {
+ ta.value=query;
+ }
+ var idResults = document.getElementById("IDresults");
+ ta.value = ta.value.replace(/^\s+/, "");
+ ta.value = ta.value.replace(/\s+$/, "");
+ var query = ta.value;
+
+ if (query != "") {
+ idResults.innerHTML = "<span class='dimText'>...Thinking...</span>";
+ var lang = "";
+ for (var l in activeLangs) {
+ if (activeLangs[l]) {
+ if (document.getElementById(l).style.display != "none") {
+ lang += (lang ? "," : "") + lang2code[l];
+ }
+ }
+ }
+ var msize = 3000;
+ if (lang) {
+ var xmlhttp = new XMLHttpRequest();
+ xmlhttp.onreadystatechange = function() {
+ if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
+ var output = "";
+ if (xmlhttp.responseText.match(/^Cannot/)) {
+ output = xmlhttp.responseText;
+ } else {
+ var phpResults = JSON.parse(xmlhttp.responseText);
+ var basescore = 1;
+ for (var detectedLang in phpResults) {
+ if (output == "") {
+ basescore = phpResults[detectedLang];
+ }
+ output += "<div class='langRes'>" +
+ langIDLink(detectedLang, phpResults[
+ detectedLang], basescore, query) +
+ "</div>";
+ }
+ }
+ idResults.innerHTML = output;
+ }
+ };
+ xmlhttp.open("GET", "textcatdemo.php?q=" + encodeURI(query) +
+ "&lang=" + encodeURI(lang) + "&dir=" + encodeURI(
+ textCatDir) + "&msize=" + encodeURI(msize), true);
+ xmlhttp.send();
+ return;
+ }
+ }
+ clearIDresults();
+}
+
+function clearIDresults() {
+ document.getElementById("IDresults").innerHTML =
+ '<span class="dimText">Language ID results...</span>';
+ }
+
+function closeInfo() {
+ document.querySelector("#infoPop").style.display = "none";
+ document.querySelector("#infoPopText").innerHTML =
+ '<span class="dimText">Additional Information...</span>';
+}
+
+function showInfo(msgNum) {
+ document.querySelector("#infoPopText").innerHTML =
+ "<div class='infoIcon'><img src='info.png' style='height:1em'></div>" +
+ infoMsg[msgNum];
+ document.querySelector("#infoPop").style.display = "block";
+}
+
+// Demos
+demoScript = [
+ // Europanto
+ [ "Europanto",
+ [
+ ["<a class=external
href='https://en.wikipedia.org/wiki/Europanto' target=_blank>Europanto</a> is a
macaronic language (i.e., a mixture of languages), made up of whatever European
languages the speaker wishes to use. Of course, it will be difficult for
TextCat to handle since it is a mix of languages and there is no single right
answer. In this demo we’ll look at how TextCat’s results depend on
the languages selected for comparison.",
+ ""],
+ ["Let’s use the Query Language Models with the
larger list of languages, and activate Dutch, English, French, German, Italian,
Portuguese, and Spanish.",
+
"initializeLangs(['English','Spanish','French','German','Portuguese',
'Italian', 'Dutch'], 0, 1)"],
+ ["After pasting the <a class=external
href='https://en.wikipedia.org/wiki/Europanto#Example' target=_blank>Europanto
Example text</a> from English Wikipedia into the Query box, submit it to
TextCat. The results should be German followed closely by Dutch, with English
and French in third and fourth place, and Italian coming in a distant fifth.",
+ "submitQuery('Europanto want nicht informe aber amuse.
Porqué betanke aan die illuminante forza van eine laugh, sometimes man remarque
things dat anders el hadde noticed nicht. Laugh esse directe emanatione des
intelligence, Aristotele dixit.');"],
+ ["Let’s disable German and re-submit to TextCat.
Now English is first with French a very close second, followed by Italian, as
before. Spanish is now fourth. When German was available, Spanish didn’t
score well enough to be reported.",
+ "LMToggleByName('German'); LMToggleByName('Dutch');
submitQuery();"],
+ ["Let’s disable English and French and try again.
Now Italian moves up to first place, with Spanish in second. Portuguese makes
an appearance. You can try the same query string using the Wiki-Text Language
Models to see how they behave differently from the Query Language Models.",
+ "LMToggleByName('English'); LMToggleByName('French');
submitQuery();"],
+ ["For use on a Wikipedia—say, to redirect queries in
another language to a different wiki—we need to tune the languages we want to
consider based on what other-language queries occur most frequently on that
Wikipedia. We don’t want to include languages that rarely occur or that
get many more errors than correct answers. You can read a lot more about this
kind of <a target=_blank class=external
href='https://www.mediawiki.org/wiki/User:TJones_(WMF)/Notes/TextCat_Optimization_for_frwiki_eswiki_itwiki_and_dewiki'>tuning
for French, Spanish, Italian, and German Wikipedias</a>.",
+ ""]
+ ]
+ ],
+ // Names are Weird
+ [ "Names are Weird",
+ [
+ ["Names are particularly hard when it comes to language
identification, in part because they are often short, and in part because they
aren’t really in a particular language. The line between the <a class=external
href='https://en.wikipedia.org/wiki/Ethnolinguistics'
target=_blank>ethnolinguistic</a> source of a name and a given language can be
more or less blurry, depending on the writing system, the popularity of the
name around the world (<i><a class=external
href='https://en.wikipedia.org/wiki/Maria_(given_name)'
target=_blank>Maria</a>,</i> for example, is common across incredibly diverse
cultures), the ethnolinguistic distinctiveness of the name elements, where the
person was born, etc.",
+ ""],
+ ["Let’s look at four celebrity names of distinctive
ethnolinguistic decent; all of these celebrities were born in the United
States. These names were chosen in part for their relative fame, and so happen
to have articles in the languages TextCat thinks they are in. That’s not always
the case for less famous people, who may be notable in one culture/language,
while not being well-known in the language most associated with their names.",
+ ""],
+ ["We’ll use the Query Language Models with the
larger list of languages, and activate all of the languages, just to make
things hard. (And a bit slower—so be patient.)",
+
"extraLangToggle(document.querySelector('#moreLess'));LMAll();"],
+ ["Our first name is <a class=external
href='https://en.wikipedia.org/wiki/Carla_Gugino' target=_blank>Carla
Gugino</a>, an American actress of Italian descent, born in Florida. Her name
is very Italian.",
+ "submitQuery('Carla Gugino');"],
+ ["Our next name is <a class=external
href='https://en.wikipedia.org/wiki/Mehmet_Oz' target=_blank>Mehmet Öz</a>, the
full name of the Turkish-American surgeon and TV personality better known as
Dr. Oz. He was born in Ohio. His name is very Turkish, in particular his given
name, <i>Mehmet,</i> which is the Turkish form of <i>Muhammad.</i>",
+ "submitQuery('Mehmet Öz');"],
+ ["Next up is <a class=external
href='https://en.wikipedia.org/wiki/Jane_Kaczmarek' target=_blank>Jane
Kaczmarek</a>, an American actress of Polish descent, born in Wisconsin. While
<i>Jane</i> is a common name in English-speaking countries, <i>Kaczmarek</i>
has the very distinctive Polish <i>cz</i> in it.",
+ "submitQuery('Jane Kaczmarek');"],
+ ["<a class=external
href='https://en.wikipedia.org/wiki/Robert_Kardashian' target=_blank>Ռոբերտ
Քարդաշյան</a> is Robert Kardashian’s name in Armenian script. He was born in
California, but the Armenian version of his name, not surprisingly, is very
Armenian.",
+ "submitQuery('Ռոբերտ Քարդաշյան');"],
+ ["Names with multiple ethnolinguistic sources are most
likely to give... “interesting” results. You can try the names of other
celebrities, with all the languages, or a more restricted set. For example, <a
class=external
href='https://en.wikipedia.org/wiki/C%C3%A9lia_%C5%A0a%C5%A1i%C4%87'
target=_blank>Célia Šašić</a> is a German footballer. She has a French given
name by birth and a Croatian surname by marriage. What’s the right “language”
in which to categorize her name?<br><br>Try the Query Language Models and the
Wiki-Text Language Models on her name before finishing the demo.",
+ "clearIDresults();
document.getElementById('queryTA').value='Célia Šašić';"],
+ ]
+ ],
+ // Unexpected Results
+ [ "Unexpected Results and Language Tuning",
+ [
+ ["Since TextCat’s language identification is based on
statistical models, there will always be the possibility of odd results,
particularly on shorter strings—where there isn’t much on which to gather
statistics—and strings that either happen not to be very typical of their
language, or happen to have characteristics typical of another language.",
+ ""],
+ ["When deciding which languages models to use on German
Wikipedia, for example, we looked to see what languages other than German were
present in a sample of poorly performing queries (i.e., those with fewer than 3
results). The <a class=external
href='https://www.mediawiki.org/wiki/User:TJones_(WMF)/Notes/TextCat_Optimization_for_frwiki_eswiki_itwiki_and_dewiki#German_Results'
target=_blank>languages found</a>, by volume, were English, Italian, Spanish,
French, Chinese, Polish, Vietnamese, Turkish, Swedish, and Dutch. There was
also some Latin, but we don’t have a model for that. Let’s activate the rest of
them.",
+ "initializeLangs(['English', 'Italian', 'Spanish',
'French', 'Chinese', 'Polish', 'Vietnamese', 'Turkish', 'Swedish', 'Dutch'], 0,
1)"],
+ ["Our first examples is <i>impstoffe adhaesive</i>, a
typo for <i>impfstoffe adhaesive,</i> which means “vaccines adhesive”. TextCat
recognizes it as English. Restoring the missing <i>f</i> gives is the more
distinctively German <i>pf</i> cluster, and German edges out English instead of
the other way around. <br><br>Mistakes will happen, and in our test set, there
were 124 out of 520 queries in English. 76/124 were correctly tagged as
English, with only 4 other non-English tagged incorrectly. So having English in
the mix does more good than not.",
+ "submitQuery('impstoffe adhaesive');"],
+ ["Medical and scientific terminology often get borrowed
from language to language. The word <i>aortotomie,</i> meaning “aortotomy”—an
incision of the aorta—is identified by TextCat as Italian. The source of
<i>aorta</i> in English is Latin, from earlier Greek, and it is spelled exactly
the same in at least a <a class=external
href='https://en.wiktionary.org/wiki/aorta' target=_blank>dozen languages</a>,
and similarly in many others. While <i>Aortotomie</i>, properly capitalized in
German, is a German word, it’s also the same in French. Scientific terms in
isolation can be very ambiguous.<br><br>Overall, there were only 8 out of 520
Italian queries in our sample. 5/8 were identified as Italian, but 12 more were
incorrectly identified as Italian. Including Italian does more harm than good.",
+ "submitQuery('aortotomie');"],
+ ["Next, <i>personalunion</i>, meaning “staff union”, is
identified as Spanish. Overall, there were only 8 out of 520 Spanish queries in
our sample. 7/8 were identified as Spanish (pretty good!), but 14 non-Spanish
queries were incorrectly identified as Spanish. Having Spanish does more harm
than good.",
+ "submitQuery('personalunion');"],
+ ["Compound nouns are very Germanic, but
<i>organisationsdokumentation</i>, “organizational documentation”, was
identified as French. There were only 5 out of 520 French queries in our
sample, with 4 tagged correctly, but 13 non-French queries tagged incorrectly.
Including French does more harm than good.",
+ "submitQuery('organisationsdokumentation');"],
+ ["You can also click to try:<ul><li><i><a href=''
onclick=\"submitQuery('Biolumineszenz'); return false;\">Bioluminiszez</a>,</i>
typo for <i>Biolumineszenz,</i> “bioluminescence”, which is tagged as
Polish</li><li><i><a href='' onclick=\"submitQuery('humanmedezin'); return
false;\">humanmedezin</a>,</i> typo for <i>humanmedizin,</i> “human medicine”,
which is tagged as Turkish</li><li><i><a href=''
onclick=\"submitQuery('Auflösevermögen'); return
false;\">Auflösevermögen</a>,</i> “resolving power”, which is tagged as
Swedish, and</li><li><i><a href='' onclick=\"submitQuery('kammilentee'); return
false;\">kammilentee</a>,</i> typo for <i>kamillentee,</i> “Camomile tea”,
which is tagged as Dutch.</li></ul>Dutch and Swedish were both rare—only one
example in our sample—but both were very bad about incorrectly tagging queries
in German, with more than 30 each incorrectly tagged in our sample of only
520.",
+ "submitQuery('');"],
+ ["When tuning the choice of languages to include for
detection for a given wiki, it’s important to know how often they are likely to
occur, and how often they are likely to be tagged incorrectly. If Italian,
Spanish, or French were more common among queries on German Wikipedia, it would
make sense to tolerate a relatively small number of identification errors.
Dutch or Swedish would have to be much more common to offset the likelihood of
errors. As it is, though, including these languages generates significantly
more incorrect answers than correct, so it’s best to exclude them.",
+ ""],
+ ]
+ ],
+ // Gibberish
+ [ "Gibberish: Garbage In, Garbage Out",
+ [
+ ["We get a surprising number of gibberish queries on
the various Wikipedias. For example, <i>fdshkfldshflshdkflsr.</i> These pose a
minor problem for language identification. Obviously they aren’t in any
particular language, but they may be identified as being in some language by
TextCat, because the statistics will always have a least bad match.",
+ ""],
+ ["Enabling all the smaller set of Query Language
Models, we can submit <i>fdshkfldshflshdkflsr</i> for identification and see
that it is scores similarly for all of German, English, French, Italian, and
Spanish—that is, all the languages available that use the Latin alphabet; there
really isn’t much to distinguish it among them other than slight statistical
variations.",
+ "LMAll();submitQuery('fdshkfldshflshdkflsr');"],
+ ["If we enable more languages TextCat cannot even guess
at what language <i>fdshkfldshflshdkflsr</i> is in, as the scores across all
the languages in the Latin alphabet are too similar, and—as configured
here—TextCat deems any result as too ambiguous if more than five languages are
within 5% of each other.",
+
"extraLangToggle(document.querySelector('#moreLess'));submitQuery('fdshkfldshflshdkflsr');"],
+ ["If we enable five models for languages that don’t use
the Latin alphabet, the scores on our gibberish (or any other string of Latin
characters) are all 1.0000. Every <a class=external
href='https://en.wikipedia.org/wiki/N-gram' target=_blank>n-gram</a> in the
string received the unknown n-gram penalty score in each language, so they are
all the same. Upon closer inspection, note that the results are sorted in
reverse alphabetical order by language code (the code for Chinese is “zh”, for
example), rather than numerically, because that’s all there is to sort on.",
+ "LMClear();initializeLangs(['Arabic', 'Armenian',
'Bengali', 'Bulgarian', 'Chinese'], 0, 1);
submitQuery('fdshkfldshflshdkflsr');"],
+ ["In an actual Wikipedia search scenario, a gibberish
query is unlikely to get a match on the wiki it’s on. If language detection
returns another language, it’s also unlikely to get any results on that other
wiki, which just wastes CPU cycles. A potential future project is gibberish
detection, which would allow us to note this kind of query and allow us to
treat them differently—not expending too much extra effort to get results, or
ignoring them in certain data analyses.<br><br>But of course we’d still search
for them! Old school sci-fi fans would recognize that <a class=external
href='https://en.wikipedia.org/wiki/Electronic_Labyrinth:_THX_1138_4EB'
target=_blank>THX 1138 4EB</a> is not gibberish, and elite H4x0rs would
certainly note that <a class=external
href='https://en.wikipedia.org/wiki/10100111001' target=_blank>10100111001</a>
is meaningful.",
+ ""],
+ ]
+ ],
+ // Chinese Challenges
+ [ "Chinese Can Be Harder Than It Would Seem",
+ [
+ ["It seems like Chinese should be easy to identify, and
when it occurs by itself, it usually is. But when it is mixed with other
languages, or even just with text in the Latin alphabet, weird things can
happen.",
+ "extraLangToggle(document.querySelector('#moreLess'));
LMClear();"],
+ ["The current Chinese language model was built like all
the other language models, and so it includes <a class=external
href='https://en.wikipedia.org/wiki/N-gram' target=_blank>n-grams</a> of size
from 1 to 5. When many languages share a writing system, like the Latin
alphabet, the distribution of characters and the co-occurence of characters are
very important in distinguishing languages. Although Chinese characters
<i>are</i> used in other writing systems, they are distinctly Chinese when they
occur alone.",
+ ""],
+ ["Another important issue is that Chinese writing uses
many more unique characters than most writing systems, so not all of them are
present in our models. Our default model size is 3000 n-grams, and at the
moment it’s important to use the same model size across language models so the
scoring is normalizes. Even a 5000 n-gram model has fewer than 2300 distinct
characters in it, so the rarer Chinese characters are not even represented.
Also note that at the level of individual characters, common single Latin
letters are much more frequent in their language models (such as <i>e, a, i, o,
n, r, t,</i> and <i>s</i> in English) than any individual Chinese character is
in the Chinese language model.",
+ ""],
+ ["As a result, we can get some unexpected results when
Chinese and Latin characters are mixed, especially if the Chinese characters
are rare or few in number. We have a fairly frequent pattern of queries that
consist of a snippet of Chinese text followed by something that looks like a
serial number or other arbitrary string of letters and numbers. Sometimes the
letters happen to be very characteristic of a particular language that uses the
Latin alphabet, and it overwhelms the Chinese statistics.",
+ ""],
+ ["Let’s activate a number of Chinese along with a
number of European languages. Try any of these (see if you can guess the
language before you click):<ul style='margin-bottom:0'><li><a href=''
onclick=\"submitQuery('的科学研究17lho4232'); return
false;\">的科学研究17lho4232</a></li><li><a href=''
onclick=\"submitQuery('的科学研究17ein4232'); return
false;\">的科学研究17ein4232</a></li><li><a href=''
onclick=\"submitQuery('的科学研究17eau4232'); return
false;\">的科学研究17eau4232</a></li><li><a href=''
onclick=\"submitQuery('的科学研究17van4232'); return
false;\">的科学研究17van4232</a></li><li><a href=''
onclick=\"submitQuery('的科学研究17ight4232'); return
false;\">的科学研究17ight4232</a></li><li><a href=''
onclick=\"submitQuery('的科学研究17ione4232'); return
false;\">的科学研究17ione4232</a></li><li><a href=''
onclick=\"submitQuery('的科学研究17los4232'); return
false;\">的科学研究17los4232</a></li><li><a href=''
onclick=\"submitQuery('的科学研究17osz4232'); return
false;\">的科学研究17osz4232</a></li></ul>",
+ "initializeLangs(['Chinese', 'Portuguese', 'German',
'French', 'Dutch', 'English', 'Italian', 'Spanish', 'Polish'], 0, 1);"],
+ ["A future project may include doing some sort of
Chinese-specific language modeling to improve coverage of and statistics for
Chinese characters.",
+ ""],
+ ]
+ ],
+ ];
+
+
+// Info Boxes
+var infoMsg = [
+ // TextCat
+ "<b>TextCat</b> is a language detection library based on <a class=external
href='https://en.wikipedia.org/wiki/N-gram' target=_blank>n-gram</a> text
categorization. This is a demo of the <a class=external
href='https://www.mediawiki.org/wiki/TextCat' target=_blank>modernized TextCat
libraries</a>, ported from Perl to PHP by the Wikimedia Foundation Discovery
team. It provides a look into how TextCat works—and sometimes
doesn’t work—and it’s also just fun to play with.",
+ // demos
+ "These <b>demos</b> provide step-by-step walkthroughs of some of the
features of TextCat, demonstrate how some of the settings affect
TextCat’s behavior, and show some interesting ways it can fail.",
+ //language models
+ "<p>We have two sets of <b>language models</b> available to TextCat. In
general, these language models are frequency lists of <a class=external
href='https://en.wikipedia.org/wiki/N-gram' target=_blank>n-grams</a> (in this
case, substrings of 1 to 5 characters) found in example text. The frequency
rank of n-grams extracted from new text to be identified is compared to these
known models, and the closest matches are reported by TextCat.</p><p><b>Click
on the languages you want TextCat to consider when identifying your
query.</b></p><p>The <i>Query Language Models</i> are built on real query log
data from Wikipedia in various languages. The <a class=external
href='https://www.mediawiki.org/wiki/User:TJones_(WMF)/Notes/Language_Detection_with_TextCat#Query_Data_Collection'
target=_blank>query data is very messy</a>, but better represents the
idiosyncrasies of queries—shorter strings, more question words, fewer function
words, frequent absence of diacritics, etc. There are fewer models, because
they require more manual effort to create. The selection is based largely on
query volume on the respective Wikipedias. These models generally work better
on shorter strings in a less formal style of the sort that show up in the query
logs.</p><p>The <i>Wiki-Text Language Models</i> are built on text extracted
from Wikipedias in various languages. The data is generally cleaner, the
writing more formal, and the models much less effort to generate. Many more
models are available. The selection is based in part on sizes of Wikipedias,
and the list of languages supported by the original version of TextCat. These
models are probably better for more general use.</p>",
+ // queries
+ "Enter a <b>query</b> and hit return to send it off to TextCat, which will
consider only the languages you’ve selected above, using the model type
you’ve selected. Language identification and relative scores will be
displayed below.",
+ //results
+ "<p>The scores used by TextCat and shown in the <b>language identification
results</b> are technically <i>costs,</i> so the least costly model to match is
the one TextCat likes best.</p><p>Since the cost of matching a model depends on
the length of the string being matched—every <a class=external
href='https://en.wikipedia.org/wiki/N-gram' target=_blank>n-gram</a> has a
cost, so longer strings have bigger costs, even if they are good matches—the
raw numbers don’t mean much.</p><p>Here we show the costs relative to the
lowest cost/best match, which thus always has a score of 1.000. TextCat only
considers alternatives that have a score that is close to the best score
(we’ve set it for within 5%, so the maximum score that could be shown is
1.0500).</p><p>If too many languages are detected (here set for more than
five), TextCat says it can’t determine the language the text is in.</p>",
+ //Wikipedia search results
+ "<p>If you click on the name of one of the languages detected by TextCat,
your query will be sent to the appropriate Wikipedia and displayed.</p><p>Keep
in mind that Wikipedia has a maximum query length of 300 characters, so you
might be able to do language detection on your query/text, but not be able to
search for it on Wikipedia.</p><p>Since it’s unlikely that anyone will be
able to read all the languages available in this demo, the <b>Wikipedia search
results</b> are configured to use English as the user interface language for
all results shown. The mobile version of the results is also used to keep
things simple and streamlined.</p>"
+];
+
+var lang2code = {};
+lang2code['Afrikaans'] = 'af';
+lang2code['Czech'] = 'cs';
+lang2code['Estonian'] = 'et';
+lang2code['Hindi'] = 'hi';
+lang2code['Javanese'] = 'jv';
+lang2code['Marathi'] = 'mr';
+lang2code['Portuguese'] = 'pt';
+lang2code['Serbian'] = 'sr';
+lang2code['Turkish'] = 'tr';
+lang2code['Arabic'] = 'ar';
+lang2code['Welsh'] = 'cy';
+lang2code['Basque'] = 'eu';
+lang2code['Croatian'] = 'hr';
+lang2code['Georgian'] = 'ka';
+lang2code['Malay'] = 'ms';
+lang2code['Romanian'] = 'ro';
+lang2code['Sundanese'] = 'su';
+lang2code['Ukrainian'] = 'uk';
+lang2code['Belarusian'] = 'be';
+lang2code['Danish'] = 'da';
+lang2code['Persian'] = 'fa';
+lang2code['Hungarian'] = 'hu';
+lang2code['Kannada'] = 'kn';
+lang2code['Burmese'] = 'my';
+lang2code['Russian'] = 'ru';
+lang2code['Swedish'] = 'sv';
+lang2code['Urdu'] = 'ur';
+lang2code['Bulgarian'] = 'bg';
+lang2code['German'] = 'de';
+lang2code['Finnish'] = 'fi';
+lang2code['Armenian'] = 'hy';
+lang2code['Korean'] = 'ko';
+lang2code['Dutch'] = 'nl';
+lang2code['Scots'] = 'sco';
+lang2code['Tamil'] = 'ta';
+lang2code['Vietnamese'] = 'vi';
+lang2code['Bengali'] = 'bn';
+lang2code['Greek'] = 'el';
+lang2code['French'] = 'fr';
+lang2code['Indonesian'] = 'id';
+lang2code['Latin'] = 'la';
+lang2code['Norwegian'] = 'no';
+lang2code['Serbo-Croatian'] = 'sh';
+lang2code['Telugu'] = 'te';
+lang2code['Cantonese'] = 'zh-yue';
+lang2code['Breton'] = 'br';
+lang2code['English'] = 'en';
+lang2code['Irish'] = 'ga';
+lang2code['Icelandic'] = 'is';
+lang2code['Lithuanian'] = 'lt';
+lang2code['Oriya'] = 'or';
+lang2code['Slovak'] = 'sk';
+lang2code['Thai'] = 'th';
+lang2code['Chinese'] = 'zh';
+lang2code['Bosnian'] = 'bs';
+lang2code['Esperanto'] = 'eo';
+lang2code['Gujarati'] = 'gu';
+lang2code['Italian'] = 'it';
+lang2code['Latvian'] = 'lv';
+lang2code['Polish'] = 'pl';
+lang2code['Slovenian'] = 'sl';
+lang2code['Turkmen'] = 'tk';
+lang2code['Catalan'] = 'ca';
+lang2code['Spanish'] = 'es';
+lang2code['Hebrew'] = 'he';
+lang2code['Japanese'] = 'ja';
+lang2code['Malayalam'] = 'ml';
+lang2code['Western Punjabi'] = 'pnb';
+lang2code['Albanian'] = 'sq';
+lang2code['Tagalog'] = 'tl';
+
+// create inverse index
+var code2lang = {};
+for (var lang in lang2code) {
+ code2lang[lang2code[lang]] = lang;
+}
+
+// add alternate forms without spaces or dashes
+lang2code['SerboCroatian'] = 'sh';
+lang2code['WesternPunjabi'] = 'pnb';
+
+// Demos
+function startDemo(num) {
+ hideDemo(1);
+
+ if (num == -1) {
+ return;
+ }
+ demoNum = num;
+ demoStep = 0;
+ document.querySelector("#demoDiv").style.display = "block";
+ document.querySelector("#TextCatHeader").style.display = "none";
+ demoNext();
+}
+
+function hideDemo(forceIt) {
+ if (!forceIt && demoNum < 0) {
+ return;
+ }
+ demoStep = -1;
+ demoNum = -1;
+ demoText.innerHTML = "";
+
+ window.scrollTo(0,0);
+ document.getElementById("TextCatHeader").style.display = "block";
+ document.getElementById("TextCatHeaderContainer").style.paddingTop =
+ '1em';
+ document.getElementById("demoPicker").selectedIndex = 0;
+ document.getElementById("demoDiv").style.display = "none";
+ document.getElementById("demoContinue").innerHTML = "Continue ➤";
+ clearIDresults();
+
+ LMClear();
+ LMDirSelect(document.querySelector("#LMDirQuery"));
+ document.getElementById('queryTA').value = "";
+ setInitLangs();
+}
+
+function demoNext() {
+ if (demoNum < 0) {
+ return;
+ }
+
+ var demoDiv = document.querySelector("#demoDiv");
+ var demoText = document.querySelector("#demoText");
+ var demoTitle = document.querySelector("#demoTitle");
+ demoTitle.innerHTML = demoScript[demoNum][0];
+ var demoSteps = demoScript[demoNum][1];
+ if (demoStep < demoSteps.length) {
+ demoText.innerHTML = demoSteps[demoStep][0];
+ demoDiv.scrollTop = 0;
+ if (demoSteps[demoStep][1] != "") {
+ eval(demoSteps[demoStep][1]);
+ }
+ if (demoStep == demoSteps.length - 1) {
+ document.querySelector("#demoContinue").innerHTML = "End.";
+ }
+ document.querySelector("#TextCatHeaderContainer").style.paddingTop =
+ document.querySelector("#demoDiv").offsetHeight + 8 + "px";
+ } else if (demoStep >= demoSteps.length) {
+ hideDemo(1);
+ return;
+ }
+ demoStep += 1;
+}
\ No newline at end of file
diff --git a/textcatdemo.php b/textcatdemo.php
new file mode 100644
index 0000000..f83db65
--- /dev/null
+++ b/textcatdemo.php
@@ -0,0 +1,53 @@
+<?php
+
+// This program is the PHP backend for the TextCat Demo web interface.
+// It is adapted from catus.php in the TextCat PHP implementation:
+// https://github.com/wikimedia/wikimedia-textcat
+
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+// http://www.gnu.org/copyleft/gpl.html
+
+
+require_once __DIR__.'/textcat/TextCat.php';
+
+// php catus.php -c "en,fr,de" -d LM-query/ -t 3000 -l "linguistics ist zehr
awesome"
+
+$lang = $_REQUEST["lang"];
+$dir =
$_REQUEST["dir"]?__DIR__.'/textcat/'.$_REQUEST["dir"]:__DIR__.'/textcat/LM';
+$msize = $_REQUEST["msize"]?$_REQUEST["msize"]:3000;
+$q = $_REQUEST["q"];
+
+$output = "";
+
+$output .= "query: " . $q . "<br>";
+$output .= "dir: " . $dir . "<br>";
+$output .= "lang: " . $lang . "<br>";
+$output .= "msize: " . $msize . "<br>";
+
+$cat = new TextCat( $dir );
+$cat->setMaxNgrams( intval( $msize ) );
+$result = $cat->classify( $q, explode( ",", $lang ) );
+
+$max = reset( $result ) * 1.05;
+
+$top = 5;
+
+$result = array_filter( $result, function ( $res ) use( $max ) { return $res <
$max; } );
+
+if ( $result && count( $result ) <= $top ) {
+ echo json_encode($result);
+} else {
+ echo "Cannot determine language.";
+}
+
+?>
\ No newline at end of file
--
To view, visit https://gerrit.wikimedia.org/r/291939
To unsubscribe, visit https://gerrit.wikimedia.org/r/settings
Gerrit-MessageType: newchange
Gerrit-Change-Id: I159b4318fa5e1ce36b902b1a19dfb84b1409758e
Gerrit-PatchSet: 1
Gerrit-Project: wikimedia/textcat-demo
Gerrit-Branch: master
Gerrit-Owner: Tjones <tjo...@wikimedia.org>
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