[Wikitech-l] Captcha Idea Proposal for GSOC 2014
Hello, First of all sorry for inappropriate way of presenting the content it appears that there was problem with my email web interface , As advised by community members I once again present my ideas regarding Multilingual, usable and effective captchas at my proposal page for GSOC-2014 given here : https://www.mediawiki.org/wiki/User:AalekhN/GSoC_proposal_2014 I therefore request all members to please go through the proposal and give your viewpoint/advice regarding the content of the proposal. Thank You Aalekh Nigam aalekhN https://www.mediawiki.org/wiki/User:AalekhN ___ Wikitech-l mailing list Wikitech-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikitech-l
[Wikitech-l] Captcha Idea Proposal for GSOC 2014
Hello,First of all sorry for inappropriate way of presenting the content ,nbsp;Asnbsp;advisednbsp;by community members I present my ideas regardingnbsp;Multilingual, usable and effective captchasnbsp;at my proposal page for GSOC-2014 given here :nbsp;https://www.mediawiki.org/wiki/User:AalekhN/GSoC_proposal_2014 I therefore request all members to please go through the proposal and give your viewpoint/advice regarding the content of the proposal. Thank YouAalekh NigamaalekhNhttps://www.mediawiki.org/wiki/User:AalekhN ___ Wikitech-l mailing list Wikitech-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikitech-l
[Wikitech-l] Captcha Idea Proposal for GSOC 2014
Hello, From last response on proosal for Multilingual, usable and effective captchas; i figured out following few solutions to the points raised by the mailing list members: 1)Captcha on the basis of selection of particular object:In this type of captcha the questions will be shown as shown here: https://commons.wikimedia.org/wiki/File:Proposal6correction.png ;other possible questions can be:Select the images in which man is wearing sunglasses,now problem i encountered while making such captcha request is that a bot could easily use Google images or third eye to find the look for images of man wearing sunglasses from the Wikimedia Commons .so to encounter this problem we can use a random numbering over the images and then ask user to to select the images in order of numbering for example the only answer to the sample question i provided above is :https://commons.wikimedia.org/wiki/File:Proposal7correction.png ;one of the wrong answer to the given question is:https://commons.wikimedia.org/wiki/File:Proposal8correction.png ; because it is not arranged in correct order which is 1,4,12 (in increasing numeric order).ps:i did forgot to specify increasing numeric order in the question i provided but the plan is to provide the question as Select human among the given photograph's and select it in increasing numeric order?. Providing increasing numeric order might make bot guess wrong answer 90% of time,which is quite comparable to the current captcha system that uses OCR as provided in the given algorithm: http://www.gizmag.com/captcha-beating-ai/29559/ . 2)Ask User to click on the same image as provided:The question for this type of captcha looks like this:https://commons.wikimedia.org/wiki/File:Proposal5correction.png we can ask user to click on the options showing equivalent image to that provided in the question.For the question provided the answer is :https://commons.wikimedia.org/wiki/File:Proposal9correction.png .Ps:we ca use more than four options probably eight options since it would be harder of bot to make a guess. 3)For blind and visually impaired users:We can use and audio captcha system which ask user to select the number as it is asked in the audio .For example the visual equivalent of the audio asked by the user will be : https://commons.wikimedia.org/wiki/File:Proposal11correction.png .Now when audio asked user to select number 0 our user will use arrow key to move across different blocks like a slide showwith different voice speaking out the options and pressing enter will select the word spokenhence verifying that the user is human.although the above shown image is visual equivalent the actual image visible will be: https://commons.wikimedia.org/wiki/File%3AProposal4correction.png ;to make the captcha reload we can user to by pressing key r which will be instructed in the audio while the captcha starts playing. Please give your response to idea provided and also the idea is listed here:https://www.mediawiki.org/wiki/Talk:CAPTCHA Thank You Aalekh Nigam aalekhN https://www.mediawiki.org/wiki/User:AalekhN -- ___ Wikitech-l mailing list Wikitech-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikitech-l
[Wikitech-l] Captcha Idea Proposal for GSOC 2014
1)Alphabetical order captcha:We can use Html5's drag and drop Api to list a particular Set of images into one category .for example in the example mentoinednbsp;in the demo herenbsp;,i made a collection of diff words starting with letters A,B,C as an output i grouped up words with starting letter A diff from words with starting letter B,CAs,i used text in this example we can use images of diff animals such as cat's and dog.and by drag and drop we can group images of cat and that of dog in diff categories.2)Annotation captcha:We can usenbsp;Images With annotationsnbsp;from commons determine the subcategoriy the annotations belongs to and then give relevant options to the usersnbsp;;for example in thenbsp;filenbsp;we can search from names of different annotations to which they corresponds to from wikipedia(names given here are those of mountain) and then give the the option's much relevant to the image.3)Effect captcha:We can use image as a question which are changed by the effect produced php's gd library and the use the same file with another effect and then ask user to match the two files.for example:thenbsp;image1nbsp;can be used as a question asking user to click on the image that matches with the question image and as an answer we can give thisnbsp;spiral imagenbsp;of the original image.Similarly we can give filters to different images producing different options asking user for right answer.4)Direct captcha:We can ask to user direct questions like ask for selecting cat out of options consisting of images of cats and humans.an example by pginer demonstrate thisnbsp;example5)Ask User to click on given effect: Asking user to click on images consisting of spiral effect's out of options which consist of images with spiral and other effects(example:greyscale).6)Drag and Drop character in Correct Place: We can use drag and drop api of html5 to ask user to form an particular alphabet or no out of the pieces of character provided .Herenbsp;is an example to form an character A and an digit 8 out of the same pieces of character.This drag and drop capability can be further enhance to form a particular shapes.For example form a clip art from a particular set of piece of shapesfor example the image givennbsp;hereinserts the correct nose as asked in the in the questions out of the possible options provided.Most,Importantly i think creation of an index system would be fruitful since it would rank the inappropriate images on the basis of users response (rank is negative for an image if user needs to reload a captcha) to a provided captcha.This as the time passes will provide us with relevant images which are user friendly and equivalently secure to use...In addition i sincerely appreciate a point mentioned by Gmansi of creation of jigsaw puzzle for the images but in my view point there will be listing of some particular category of images and those ranked higher in indexing system to be used as jigsaw puzzle.as an additonal help we can usenbsp;Extension Assiranbsp;to make our extension smarter.please give your valuable suggestions as we can work to improve this amazing project. nbsp;at nbsp;https://www.mediawiki.org/wiki/Talk:CAPTCHA nbsp;:) nbsp;Thank YouAalekh NigamaalekhN ___ Wikitech-l mailing list Wikitech-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikitech-l
Re: [Wikitech-l] Captcha Idea Proposal for GSOC 2014
Hi and thanks for being interested in Wikimedia! Please take a look at how your email looked to a lot of people: http://imgur.com/4OuPSyN (You can see it in our mailing list archives: http://lists.wikimedia.org/pipermail/wikitech-l/2014-February/074812.html ) Could you re-send it with your numbered points separated better, so we can read it? Thanks! Sumana Harihareswara Engineering Community Manager Wikimedia Foundation ___ Wikitech-l mailing list Wikitech-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikitech-l
Re: [Wikitech-l] Captcha Idea Proposal for GSOC 2014
I figured out following way we can approach the project:1)Alphabetical order captcha:We can use Html5's drag and drop Api to list a particular Set of images into one category .for example in the example mentoined in the demo here ,i made a collection of diff words starting with letters A,B,C as an output i grouped up words with starting letter A diff from words with starting letter B,CAs,i used text in this example we can use images of diff animals such as cat's and dog.and by drag and drop we can group images of cat and that of dog in diff categories. 2)Annotation captcha:We can use Images With annotations from commons determine the subcategoriy the annotations belongs to and then give relevant options to the users ;for example in the file we can search from names of different annotations to which they corresponds to from wikipedia(names given here are those of mountain) and then give the the option's much relevant to the image. 3)Effect captcha:We can use image as a question which are changed by the effect produced php's gd library and the use the same file with another effect and then ask user to match the two files.for example:the image1 can be used as a question asking user to click on the image that matches with the question image and as an answer we can give this spiral image of the original image.Similarly we can give filters to different images producing different options asking user for right answer. 4)Direct captcha:We can ask to user direct questions like ask for selecting cat out of options consisting of images of cats and humans.an example by pginer demonstrate this example 5)Ask User to click on given effect: Asking user to click on images consisting of spiral effect's out of options which consist of images with spiral and other effects(example:grey scale). 6)Drag and Drop character in Correct Place: We can use drag and drop api of html5 to ask user to form an particular alphabet or no out of the pieces of character provided .Here is an example to form an character A and an digit 8 out of the same pieces of character. This drag and drop capability can be further enhance to form a particular shapes.For example form a clip art from a particular set of piece of shapesfor example the image given here inserts the correct nose as asked in the in the questions out of the possible options provided. Most,Importantly i think creation of an index system would be fruitful since it would rank the inappropriate images on the basis of users response (rank is negative for an image if user needs to reload a captcha) to a provided captcha.This as the time passes will provide us with relevant images which are user friendly and equivalently secure to use... In addition i sincerely appreciate a point mentioned by Gmansi of creation of jigsaw puzzle for the images but in my view point there will be listing of some particular category of images and those ranked higher in indexing system to be used as jigsaw puzzle. As an additonal help we can use Extension Assira to make our extension smarter. please give your valuable suggestions as we can work to improve this amazing project. nbsp;at nbsp;https://www.mediawiki.org/wiki/Talk:CAPTCHA nbsp;:) nbsp;Thank YouAalekh NigamaalekhN From: Aalekh Nigamlt;aalekh1...@rediffmail.comgt; Sent: Fri, 28 Feb 2014 23:32:16 To: wikitech-l@lists.wikimedia.orglt;wikitech-l@lists.wikimedia.orggt; Subject: Captcha Idea Proposal for GSOC 2014 1)Alphabetical order captcha:We can use Html5's drag and drop Api to list a particular Set of images into one category .for example in the example mentoinednbsp;in the demo herenbsp;,i made a collection of diff words starting with letters A,B,C as an output i grouped up words with starting letter A diff from words with starting letter B,CAs,i used text in this example we can use images of diff animals such as cat's and dog.and by drag and drop we can group images of cat and that of dog in diff categories.2)Annotation captcha:We can usenbsp;Images With annotationsnbsp;from commons determine the subcategoriy the annotations belongs to and then give relevant options to the usersnbsp;;for example in thenbsp;filenbsp;we can search from names of different annotations to which they corresponds to from wikipedia(names given here are those of mountain) and then give the the option's much relevant to the image.3)Effect captcha:We can use image as a question which are changed by the effect produced php's gd library and the use the same file with another effect and then ask user to match the two files.for example:thenbsp;image1nbsp;can be used as a question asking user to click on the image that matches with the question image and as an answer we can give thisnbsp;spiral imagenbsp;of the original image.Similarly we can give filters to different images producing different options asking user for right answer.4)Direct captcha:We can ask to user direct questions
Re: [Wikitech-l] Captcha Idea Proposal for GSOC 2014
Your links didn't work at all, so I can't give specific comments. On Fri, Feb 28, 2014 at 1:02 PM, Aalekh Nigam aalekh1...@rediffmail.comwrote: 1)Alphabetical order captcha:We can use Html5's drag and drop Api to list a particular Set of images into one category .for example in the example mentoinednbsp;in the demo herenbsp;,i made a collection of diff words starting with letters A,B,C as an output i grouped up words with starting letter A diff from words with starting letter B,CAs,i used text in this example we can use images of diff animals such as cat's and dog.and by drag and drop we can group images of cat and that of dog in diff categories. What if someone thinks your picture of a dog is wolf, or puppy, or hound, or terrier, or animal, etc? Or what if the user identifies your images in Spanish or Chinese rather than English, resulting in a different order? Also, how easy would it be for the spambot to download the entire list of images+names and just brute force it? And what are the bot's chances by randomly guessing? If there are 8 images to sort, it's a 1/40320 chance. Which isn't very good as far as captchas go, 6 letters A-Z is 1/308915776. 2)Annotation captcha:We can usenbsp;Images With annotationsnbsp;from commons determine the subcategoriy the annotations belongs to and then give relevant options to the usersnbsp;;for example in thenbsp;filenbsp;we can search from names of different annotations to which they corresponds to from wikipedia(names given here are those of mountain) and then give the the option's much relevant to the image. What's to stop the spambot from finding the image on Commons? And looking at that category, are users really going to be able to reliably identify the Fiat Grande Punto in https://commons.wikimedia.org/wiki/File:%22_01_-_ITALY_-_ALFA_ROMEO_SPIDER_SILVER_15.jpg, or figure out WTF UP 5 and UP 6 are supposed to be in https://commons.wikimedia.org/wiki/File:%22_12_-_ITALY_-_Serie_UP_di_Gaetano_Pesce_UP_5_e_6_al_Triennale_Design_Museum_di_Milano_4.jpg, or Colli Euganei in https://commons.wikimedia.org/wiki/File:%22_12_-_ITALY-_Sunset_in_Cavarzere_08.JPG, or identify the birds by scientific name in https://commons.wikimedia.org/wiki/File:-_Plastic_boxes_-.jpg, or guess which chloroplast (in German!) to pick in https://commons.wikimedia.org/wiki/File:03-10_Mnium2.jpg? 3)Effect captcha:We can use image as a question which are changed by the effect produced php's gd library and the use the same file with another effect and then ask user to match the two files.for example:thenbsp;image1nbsp;can be used as a question asking user to click on the image that matches with the question image and as an answer we can give thisnbsp;spiral imagenbsp;of the original image.Similarly we can give filters to different images producing different options asking user for right answer. Spambots already solve this sort of thing when OCRing text captchas. 4)Direct captcha:We can ask to user direct questions like ask for selecting cat out of options consisting of images of cats and humans.an example by pginer demonstrate thisnbsp;example I just replied to this idea at http://lists.wikimedia.org/pipermail/wikitech-l/2014-February/074816.html 5)Ask User to click on given effect: Asking user to click on images consisting of spiral effect's out of options which consist of images with spiral and other effects(example:greyscale). That requires people actually know what the effects names are, which doesn't seem particularly accessible. And again, OCRing is probably harder for bots. 6)Drag and Drop character in Correct Place: We can use drag and drop api of html5 to ask user to form an particular alphabet or no out of the pieces of character provided .Herenbsp;is an example to form an character A and an digit 8 out of the same pieces of character.This drag and drop capability can be further enhance to form a particular shapes.For example form a clip art from a particular set of piece of shapesfor example the image givennbsp;hereinserts the correct nose as asked in the in the questions out of the possible options provided.Most,Importantly i think creation of an index system would be fruitful since it would rank the inappropriate images on the basis of users response (rank is negative for an image if user needs to reload a captcha) to a provided captcha.This as the time passes will provide us with relevant images which are user friendly and equivalently secure to use...In addition i sincerely appreciate a point mentioned by Gmansi of creation of jigsaw puzzle for the images but in my view point there will be listing of some particular category of images and those ranked higher in indexing system to be used as jigsaw puzzle.as an additonal help we can usenbsp;Extension Assiranbsp;to make our extension smarter.please give your valuable suggestions as we can work to improve this amazing project. nbsp;at
