dbpedia lite
Hello, I have been working on a cut down version of dbpedia, called dbpedia lite: http://dbpedialite.org/ dbpedia lite takes some of the structured data in Wikipedia and presents it as Linked Data. It contains a small subset of the data that dbpedia contains; it does not attempt to extract data from the Wikipedia infoboxes. Data is fetched live from the Wikipedia API. It uses Wikipedia pageIds in its URIs to attempt to mitigate the problems of article titles changing over time. The reasons for building it are: - to try build a webapp with RDF.db, Spira, Sinatra and Heroku - to experiment with using Wikipedia page ids in URIs (instead of titles) - to create small (10) number of triples per thing on a REST API - live data for all things in Wikipedia - fun! There is no query interface - only a RESTful interface that following the Linking Open Data principles. Source code is on GitHub: http://github.com/njh/dbpedialite nick. http://www.bbc.co.uk/ This e-mail (and any attachments) is confidential and may contain personal views which are not the views of the BBC unless specifically stated. If you have received it in error, please delete it from your system. Do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. Please note that the BBC monitors e-mails sent or received. Further communication will signify your consent to this.
Re: dbpedia lite
Nicholas Humfrey wrote: Hello, I have been working on a cut down version of dbpedia, called dbpedia lite: http://dbpedialite.org/ dbpedia lite takes some of the structured data in Wikipedia and presents it as Linked Data. It contains a small subset of the data that dbpedia contains; it does not attempt to extract data from the Wikipedia infoboxes. Data is fetched live from the Wikipedia API. It uses Wikipedia pageIds in its URIs to attempt to mitigate the problems of article titles changing over time. The reasons for building it are: - to try build a webapp with RDF.db, Spira, Sinatra and Heroku - to experiment with using Wikipedia page ids in URIs (instead of titles) - to create small (10) number of triples per thing on a REST API - live data for all things in Wikipedia - fun! There is no query interface - only a RESTful interface that following the Linking Open Data principles. Source code is on GitHub: http://github.com/njh/dbpedialite nick. http://www.bbc.co.uk/ This e-mail (and any attachments) is confidential and may contain personal views which are not the views of the BBC unless specifically stated. If you have received it in error, please delete it from your system. Do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. Please note that the BBC monitors e-mails sent or received. Further communication will signify your consent to this. Nicholas, Re. http://dbpedialite.org/, any chance that you could add link rel=alternate .../ links in head/ such that the HTML based Descriptor Docs are associated with alternative Descriptor Docs in different formats (JSON, N3 etc..). In addition, would you consider adding RDFa into the HTML Descriptor docs such that they to becomes a machine readable structured Linked Data Sources for RDFa aware agents etc. -- Regards, Kingsley Idehen President CEO OpenLink Software Web: http://www.openlinksw.com Weblog: http://www.openlinksw.com/blog/~kidehen Twitter/Identi.ca: kidehen
Re: Linking a vCard to its holder
Hi you could use http://open.vocab.org/terms/businessCard There is also a proposal to add a similar property to FOAF at http://wiki.foaf-project.org/w/term_businessCard On Fri, May 14, 2010 at 1:32 PM, Felix Ostrowski felix.ostrow...@googlemail.com wrote: Hi, vCards in RDF seem to be a good way to describe people and organizations with regards to address information etc. Is there any convention to link a vCard to the person or organization it describes (i.e. its holder), e.g. http://example.org/me/vcard ?vCardOf? http://example.org/me or http://example.org/me ?hasvCard? http://example.org/me/vcard So far, I couldn't find an established predicate that does so... Cheers, Felix P.S. I find the examples at http://www.w3.org/Submission/vcard-rdf/#Ex to be rather misleading. v:VCard rdf:about = http://example.com/me/corky; ... /v:VCard is not an assertion I'd make about myself. I am not a vCard.
Re: dbpedia lite
Hello, I have been working on a cut down version of dbpedia, called dbpedia lite: http://dbpedialite.org/ dbpedia lite takes some of the structured data in Wikipedia and presents it as Linked Data. It contains a small subset of the data that dbpedia contains; it does not attempt to extract data from the Wikipedia infoboxes. Data is fetched live from the Wikipedia API. It uses Wikipedia pageIds in its URIs to attempt to mitigate the problems of article titles changing over time. The reasons for building it are: - to try build a webapp with RDF.db, Spira, Sinatra and Heroku - to experiment with using Wikipedia page ids in URIs (instead of titles) - to create small (10) number of triples per thing on a REST API - live data for all things in Wikipedia - fun! There is no query interface - only a RESTful interface that following the Linking Open Data principles. Source code is on GitHub: http://github.com/njh/dbpedialite Fantastic, really like it, good effort! One suggestion ;) would be *really* nice to have the Categories and links to other resources in their too , would be v usable and a bit more linky Yes. That is near the top of my todo list :) Wikipedia pageids aren't available in many of the API calls, which means I would have to make an http request for each category to get its pageid. I am looking at submitting patches to MediaWiki to make this easier. nick. http://www.bbc.co.uk/ This e-mail (and any attachments) is confidential and may contain personal views which are not the views of the BBC unless specifically stated. If you have received it in error, please delete it from your system. Do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. Please note that the BBC monitors e-mails sent or received. Further communication will signify your consent to this.
Re: Linking a vCard to its holder
Felix Ostrowski wrote: Hi, vCards in RDF seem to be a good way to describe people and organizations with regards to address information etc. Is there any convention to link a vCard to the person or organization it describes (i.e. its holder), e.g. http://example.org/me/vcard ?vCardOf? http://example.org/me or http://example.org/me ?hasvCard? http://example.org/me/vcard So far, I couldn't find an established predicate that does so... Cheers, Felix P.S. I find the examples at http://www.w3.org/Submission/vcard-rdf/#Ex to be rather misleading. v:VCard rdf:about = http://example.com/me/corky; /v:VCard is not an assertion I'd make about myself. I am not a vCard. http://buzzword.org.uk/profiles/hCard/terms/ :)
Re: dbpedia lite
Re. http://dbpedialite.org/, any chance that you could add link rel=alternate .../ links in head/ such that the HTML based Descriptor Docs are associated with alternative Descriptor Docs in different formats (JSON, N3 etc..). Yes, certainly. I have put this on my Todo list. In addition, would you consider adding RDFa into the HTML Descriptor docs such that they to becomes a machine readable structured Linked Data Sources for RDFa aware agents etc. There is RDFa already there for the Thing pages. Is there something missing? Is it Void type stuff that you want me to add to the RDFa? nick. http://www.bbc.co.uk/ This e-mail (and any attachments) is confidential and may contain personal views which are not the views of the BBC unless specifically stated. If you have received it in error, please delete it from your system. Do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. Please note that the BBC monitors e-mails sent or received. Further communication will signify your consent to this.
SAMT 2010 - CALL FOR PAPERS
(apologies for multiple postings) *** * SAMT 2010 - CALL FOR PAPERS* *5th International Conference on * *Semantic And digital Media Technologies * *Saarbruecken, Germany, 1-3 December 2010 * *http://www.samt2010.org * *** --- Important Dates --- Abstract Submission: June 15 Paper Submission: June 22 Notification: August 15 Camera Ready: September 15 Conference: December 1-3 - Objectives and Topics - Large amounts of multimedia material, such as images, audio, video, and 3D/4D material, as well as computer generated 2D, 3D, and 4D content, already exist and are growing at increasing rates. While these amounts are growing, managing distribution of and access to multimedia material is becoming ever harder, both for lay and professional users. The SAMT conference series tackles these problems by investigating the semantics and pragmatics of multimedia generation, management, and user access. The conference targets scientifically valuable research tackling the semantic gap between the low-level signal data representation of multimedia material and the high-level meaning that providers, consumers, and prosumers associate with the content. We welcome innovative solutions that consider some or all factors in the process of multimedia generation and consumption, including methods from low-level signal processing up to the mobile context in which a user operates. Topics of interest include, but are not limited to: 1) SEMANTIC ANALYSIS AND MULTIMEDIA a) Knowledge assisted multimedia analysis b) Content-based multimedia analysis linked with natural language and speech processing 2) SEMANTIC RETRIEVAL AND MULTIMEDIA a) Semantic-driven multimedia indexing and retrieval b) Semantic retrieval of 3D objects c) Machine Learning and relevance feedback for finding semantics d) Semantic-driven multimedia content adaptation and summarization 3) SEMANTIC METADATA MANAGEMENT OF MULTIMEDIA a) Metadata management for multimedia b) Multimedia ontologies and infrastructures c) Standards bridging the multimedia and knowledge domains 4) SEMANTIC USER INTERFACES FOR MULTIMEDIA a) Interfaces and personalization for interaction with large multimedia repositories b) Semantic media annotation c) Inference and machine learning for semi-automatic annotation d) Browsing multimedia archives e) Device-specific access to and adaptation of multimedia 5) SEMANTICS IN VISUALIZATION AND COMPUTER GRAPHICS a) Illustrative depiction and rendering b) Mapping meaning to presentation content c) Smart virtual environments d) Supporting knowledge discovery 6) APPLICATIONS OF SEMANTIC MULTIMEDIA a) Social multimedia tagging b) Context, user, network and semantics-aware media engineering c) Multimedia mash-ups d) Case studies with clear, innovative lessons learned -- Submission -- The conference proceedings will be published by Springer LNCS and the Springer Digital Library. Original contributions equivalent of 16 pages LNCS style must be electronically submitted according to the instructions that will be posted to the conference web site http://www.samt2010.org . The papers should present original and previously unpublished results that are not simultaneously submitted elsewhere. The best papers will be published in the Special Issue of the Springer's International Journal of Multimedia Tools and Applications. Organizing Committee General Local Chairs: Thierry Declerck, DFKI GmbH, Germany Michael Sintek, DFKI GmbH, Germany Marcin Grzegorzek, University of Koblenz-Landau, Germany Massimo Romanelli, DFKI GmbH, Germany Program Chairs: Michael Granitzer, Graz University of Technology, Austria Stefan Rueger, Open University, UK
Re: dbpedia lite
Nicholas Humfrey wrote: Re. http://dbpedialite.org/, any chance that you could add link rel=alternate .../ links in head/ such that the HTML based Descriptor Docs are associated with alternative Descriptor Docs in different formats (JSON, N3 etc..). Yes, certainly. I have put this on my Todo list. In addition, would you consider adding RDFa into the HTML Descriptor docs such that they to becomes a machine readable structured Linked Data Sources for RDFa aware agents etc. There is RDFa already there for the Thing pages. Is there something missing? Is it Void type stuff that you want me to add to the RDFa? Hmm, I get: http://linkeddata.uriburner.com/about/html/http/dbpedialite.org/things/52780 Which returns: Unable to retrieve RDF data from http://dbpedialite.org/things/52780: HTTP/1.0 400 Bad Request Kingsley nick. http://www.bbc.co.uk/ This e-mail (and any attachments) is confidential and may contain personal views which are not the views of the BBC unless specifically stated. If you have received it in error, please delete it from your system. Do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. Please note that the BBC monitors e-mails sent or received. Further communication will signify your consent to this. -- Regards, Kingsley Idehen President CEO OpenLink Software Web: http://www.openlinksw.com Weblog: http://www.openlinksw.com/blog/~kidehen Twitter/Identi.ca: kidehen
Re: Linked data in packaged content (ePub)
One aspect of this thread concerns reasoning on limited-compute (i.e. mobile) platforms. I'd like to point out Pychinko, the Python-based reasoner (c.f. http://bit.ly/bPglu1 ), which was designed to run on mobile platforms such as Nokia phones where Java-based reasoners were considered too compute-intensive. Granted, given the current closed nature of Apple, we should probably be looking for Cocoa/Objective-C based reasoners... :P John On Wed, Apr 28, 2010 at 2:39 PM, Stuart A. Yeates syea...@gmail.com wrote: On Wed, Apr 28, 2010 at 11:36 PM, John Erickson olyerick...@gmail.com wrote: Stuart, t's not clear to me what you're trying to accomplish...For whom are you trying to add value? We are funded to digitise teaching, learning and research materials for our staff and students. Value to anyone else is incidental, but indicative. Are you imagining creating some kind of meshup within the reading experience, perhaps meshing metadata and links bound to entities within the ePub'd document with external linked data? Ideally, I'd like a protocol such as Open URL ( http://en.wikipedia.org/wiki/Open_URL ), linking books on the device up to the bibliographies of other books that also happen to be on the device. For low CPU devices the links might have to be pre-calculated when connected to a desktop PC. I understand that Open URL can't actaully do this because it assumes the web. cheers stuart -- John S. Erickson, Ph.D. http://bitwacker.wordpress.com olyerick...@gmail.com Twitter: @olyerickson
Re: dbpedia lite
On Fri, May 14, 2010 at 8:55 AM, Nicholas Humfrey nicholas.humf...@bbc.co.uk wrote: It uses Wikipedia pageIds in its URIs to attempt to mitigate the problems of article titles changing over time. This seems like a great idea. I always assumed MediaWiki renames occurred by creating a new pageid with the old content and updating the old pageid's content like #REDIRECT [[newPageTitle]]. Do they actually retitle the old pageid and create a new pageid with the old title redirecting to the old pageid with the new title? -- Joe Presbrey
Re: dbpedia lite
Nick -- On May 14, 2010, at 12:33 PM, Kingsley Idehen wrote: Nicholas Humfrey wrote: There is RDFa already there for the Thing pages. Is there something missing? Is it Void type stuff that you want me to add to the RDFa? Hmm, I get: http://linkeddata.uriburner.com/about/html/http/dbpedialite.org/things/52780 Which returns: Unable to retrieve RDF data from http://dbpedialite.org/things/52780: HTTP/1.0 400 Bad Request Something seems to be broken in the dbpedialite.org server's content negotiation. Try these curl commands (which should all get the same output -- I'm not changing any values, just the order of the MIME types) -- curl -i -H Accept: application/rdf+xml; q=0.9, application/xhtml+xml; q=1.0, text/rdf+n3; q=0.8, application/rdf+turtle; q=0.7, application/x-turtle; q=0.6, application/turtle; q=0.5, application/xml; q=0.2, */*; q=0.1 http://dbpedialite.org/things/52780 curl -i -H Accept: text/rdf+n3; q=0.8, application/xhtml+xml; q=1.0, application/rdf+xml; q=0.9, application/rdf+turtle; q=0.7, application/x-turtle; q=0.6, application/turtle; q=0.5, application/xml; q=0.2, */*; q=0.1 http://dbpedialite.org/things/52780 curl -i -H Accept: application/rdf+turtle; q=0.7, application/xhtml+xml; q=1.0, application/rdf+xml; q=0.9, text/rdf+n3; q=0.8, application/x-turtle; q=0.6, application/turtle; q=0.5, application/xml; q=0.2, */*; q=0.1 http://dbpedialite.org/things/52780 curl -i -H Accept: application/x-turtle; q=0.6, application/xhtml+xml; q=1.0, application/rdf+xml; q=0.9, text/rdf+n3; q=0.8, application/rdf+turtle; q=0.7, application/turtle; q=0.5, application/xml; q=0.2, */*; q=0.1 http://dbpedialite.org/things/52780 curl -i -H Accept: application/xhtml+xml; q=1.0, application/rdf+xml; q=0.9, text/rdf+n3; q=0.8, application/rdf+turtle; q=0.7, application/x-turtle; q=0.6, application/turtle; q=0.5, application/xml; q=0.2, */*; q=0.1 http://dbpedialite.org/things/52780 Note that the result for each is based on the first MIME type in the list -- no matter that it supports a later listed type, nor that a later listed type has a higher quality rating -- and that all but the last gets an error. Be seeing you, Ted -- A: Yes. http://www.guckes.net/faq/attribution.html | Q: Are you sure? | | A: Because it reverses the logical flow of conversation. | | | Q: Why is top posting frowned upon? Ted Thibodeau, Jr. // voice +1-781-273-0900 x32 Evangelism Support //mailto:tthibod...@openlinksw.com // http://twitter.com/TallTed OpenLink Software, Inc. // http://www.openlinksw.com/ 10 Burlington Mall Road, Suite 265, Burlington MA 01803 http://www.openlinksw.com/weblogs/uda/ OpenLink Blogs http://www.openlinksw.com/weblogs/virtuoso/ http://www.openlinksw.com/blog/~kidehen/ Universal Data Access and Virtual Database Technology Providers
Re: dbpedia lite
Kingsley, it may have been a temporary glitch; at first it did not work for the pyRdfa distiller either, but it does now! Nicholas, thanks! Ivan On May 14, 2010, at 18:33 , Kingsley Idehen wrote: Nicholas Humfrey wrote: Re. http://dbpedialite.org/, any chance that you could add link rel=alternate .../ links in head/ such that the HTML based Descriptor Docs are associated with alternative Descriptor Docs in different formats (JSON, N3 etc..). Yes, certainly. I have put this on my Todo list. In addition, would you consider adding RDFa into the HTML Descriptor docs such that they to becomes a machine readable structured Linked Data Sources for RDFa aware agents etc. There is RDFa already there for the Thing pages. Is there something missing? Is it Void type stuff that you want me to add to the RDFa? Hmm, I get: http://linkeddata.uriburner.com/about/html/http/dbpedialite.org/things/52780 Which returns: Unable to retrieve RDF data from http://dbpedialite.org/things/52780: HTTP/1.0 400 Bad Request Kingsley nick. http://www.bbc.co.uk/ This e-mail (and any attachments) is confidential and may contain personal views which are not the views of the BBC unless specifically stated. If you have received it in error, please delete it from your system. Do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. Please note that the BBC monitors e-mails sent or received. Further communication will signify your consent to this. -- Regards, Kingsley Idehen President CEO OpenLink Software Web: http://www.openlinksw.com Weblog: http://www.openlinksw.com/blog/~kidehen Twitter/Identi.ca: kidehen Ivan Herman, W3C Semantic Web Activity Lead Home: http://www.w3.org/People/Ivan/ mobile: +31-641044153 PGP Key: http://www.ivan-herman.net/pgpkey.html FOAF: http://www.ivan-herman.net/foaf.rdf smime.p7s Description: S/MIME cryptographic signature
