[DBpedia-discussion] Inconsistent results from http://dbpedia.org/sparql

I'm puzzled by getting different results for a query against http://dbpedia.org/sparql sent from Virtuoso query editor ( http://dbpedia.org/sparql) or from yasgui (http://yasgui.org/) or a Python program. PREFIX dbo: SELECT * WHERE {?S dbo:wikiPageWikiLink ?O}

[Dbpedia-discussion] Three 2015 JWS special issues open for submissions

on Elsevier's archival server. Author preprints will be immediately available on the JWS preprint server (http://bit.ly/JWSpreprint) -- Tim Finin, Computer Science & Electrical Engr, U. of Maryland, Baltimore County, 1000 Hilltop, Baltimore MD 21250 voice:4104993522 fax:4104553969 fi...

[Dbpedia-discussion] CFP: JWS Special Issue on machine learning & datamining for the Semantic Web

CFP: SPECIAL ISSUE OF THE JOURNAL OF WEB SEMANTICS ON MACHINE LEARNING AND DATA MINING FOR THE SEMANTIC WEB The Journal of Web Semantics (http://bit.ly/ElsJWS) seeks submissions of original research papers for a special issue on machine learning and data mining for the Semantic Web

[Dbpedia-discussion] FILTER NOT EXISTS error on http://dbpedia.org/sparql

http://dbpedia.org/sparql gives me a SP031 error for a query that seems stems from my use of FILTER NOT EXISTS. But this query worked a when I last ran it about 38 hours ago. Below is the error message I get, which also shows the query. Has the server software changed? -- Tim Finin, Computer

[Dbpedia-discussion] simple LOD browser for a a demo system

ll be appreciated. Thanks, Tim -- Tim Finin, Computer Science & Electrical Engineering, Univ of Maryland, Baltimore County, 1000 Hilltop Cir, Baltimore MD 21250. +1-410-455-3522. fi...@cs.umbc.edu tfi...@gmail.com http://umbc.edu/~finin skype

Re: [Dbpedia-discussion] Negation in Sparql

On 11/22/10 10:48 AM, Bob DuCharme wrote: > I thought that maybe this would work, but it didn't, and I'm curious > why. (Nat King Cole still shows up, and > http://dbpedia.org/page/Nat_King_Cole shows that there is a triple > saying that he's a dbpedia-owl:Person.) > SELECT distinct ?x >

Re: [Dbpedia-discussion] page links

On 5/10/10 7:29 PM, Roberto Mirizzi wrote: >> We've found it useful to use the page links to compute a PMI >> (pointwise mutual information) metric for pairs of pages. We >> used this to help map entity mentions in text to Wikipedia >> entities, resolving possible ambiguities (e.g., among the >> s

Re: [Dbpedia-discussion] page links

o compute a PMI (pointwise mutual information) metric for pairs of pages. We used this to help map entity mentions in text to Wikipedia entities, resolving possible ambiguities (e.g., among the seven George Bushes in Wikipedia. -- Tim Finin, Computer Science & Electrical Engineering, Univ of Ma

[Dbpedia-discussion] TAC 2010 Knowledge Base Population track

See http://nlp.cs.qc.cuny.edu/kbp/2010/ for details. -- Tim Finin, Computer Science and Electrical Engineering, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore MD 21250 http://umbc.edu/~finin fi...@umbc.edu 410-455-3522 fax:-3969 http://ebiquity.umbc.edu/ tfi...

[Dbpedia-discussion] What happened to the US cities in http://lookup.dbpedia.org/?

http://lookup.dbpedia.org/query.aspx?q=tokyo http://lookup.dbpedia.org/query.aspx?q=bejing -- Tim Finin, Computer Science & Electrical Engineering, Univ of Maryland Baltimore County, 1000 Hilltop Cir, Baltimore MD 21250. fi...@umbc.edu http://umbc.edu/~finin 410-455-3522 fax:-3969 http://ebiquity

Re: [Dbpedia-discussion] Fwd: Your message to Dbpedia-discussion awaits moderator approval

Kavitha Srinivas wrote: > Actually I wonder if it makes sense to annotate the relation with the > actual conditional probability as suggested by Tim. We found the > probabilities quite useful in different applications. If we go this > route we could also send you the set of types with very low

Re: [Dbpedia-discussion] Fwd: Your message to Dbpedia-discussion awaits moderator approval

Kavitha Srinivas wrote: > I understand what you are saying -- but some of this reflects the way > types are associated with freebase instances. The types are more like > 'tags' in the sense that there is no hierarchy, but each instance is > annotated with multiple types. So an artist would in

Re: [Dbpedia-discussion] Fwd: Your message to Dbpedia-discussion awaits moderator approval

Kavitha Srinivas wrote: > I understand what you are saying -- but some of this reflects the way > types are associated with freebase instances. The types are more like > 'tags' in the sense that there is no hierarchy, but each instance is > annotated with multiple types. So an artist would in fac

Re: [Dbpedia-discussion] Fwd: Your message to Dbpedia-discussion awaits moderator approval

an 20K yago classes defined to be the equivalent of Freebase's people/person, including Uyghurs, murdered children and Norwegian Eurovision contestants. Given the semantics of owl:equivalentClass, all 20K of these yago classes are asserted to have the same extent. Now *that's* irration

Re: [Dbpedia-discussion] List of persons from Wikipedia

Freebase has done a pretty good job of recognizing Wikipedia articles that are about people. It's pretty easy to write a MQL query that gets the Wikipedia article names for all of the topics of type Person in Freebase. When we did this we got over 550K Wikipedia articles. There are still errors

[Dbpedia-discussion] DBpedia ontology property mappings

it vague. Ultimately, I am trying to enumerate possible ways of expressing different dbpedia-owl properties in text and I thought this might be a useful source of data to look at. Tim -- Tim Finin, Computer Science & Electrical Engineering, Univ of Maryland Baltimore County, 1000 Hilltop C

Re: [Dbpedia-discussion] Invalid character in infobox-mappingbased-loose.nt when trying to load DBPedia in virtos

blem when trying to load infobox-mappingbased-loose.nt into rdflib and found it was an unescaped space in a URI: <http://dbpedia.org/resource/Caedmon_Audio> <http://xmlns.com/foaf/0.1/homepage> <http://www.harpercollins.com/channels.asp?channel=Audio Harper> . Change the space

[Dbpedia-discussion] TAC 2009 KB population track

The TAC 2009 'Knowledge Base Population' track might be of special interest to the DBpedia community, as it involves extracting data to fill Wikipedia infoboxes from text. Tim -- TAC 2009: Call for Participation Text Analysis Conference (TAC)

[Dbpedia-discussion] ISWC 2008 deadlines this week and next

I'm pretty excited about the prospects for linked data, dbpedia, freebase, etc., and expect that these topics will have a big presence at ISWC 2008 (26-30 Oct, Karlsruhe). To that end, I'd like to point out that deadlines for submitting papers, Doctoral Consortium applications and tutorial proposa

Re: [Dbpedia-discussion] six properties for a person s date of birth

Georgi Kobilarov wrote: > The DBpedia extraction uses the MediaWiki markup to generate RDF > predicates, not the labels you see in the HTML output. Ah -- that makes sense. I should have thought of this possibility and looked! > For your use case, I recommend using the DBpedia Persondata dump [1

[Dbpedia-discussion] six properties for a person's date of birth

perties. There is also a similar duplication with the properties birthyear, birthYear, yearOfBirth and yearofbirth. Of course, there are additional properties (e.g. datefbirth) that link a person to an instance that bundles up the three numbers that describe a date. Can anyone shed light on th

[Dbpedia-discussion] Extracting person information from dbpedia

evant, which seems like a waste. Would one query every second or two be an abuse of the dbpedia server? Is there a third approach? Tim -- Tim Finin, Computer Science & Electrical Engineering, Univ of Maryland Baltimore County, 1000 Hilltop Cir, Baltimore MD 21250. [EMAIL PROTECTED] http:/