RDF関連メモ on Planet masaka : 2010-04

Planet masakaから2010年4月のRDF／セマンティック・ウェブ関連メモを抽出してまとめたものです。

2010-04-23

• eClassOWL - The Web Ontology for Products and Services
  an OWL ontology for describing the types and properties of products and services on the Semantic Web... meant to be used in combination with the GoodRelations ontology for e-commerce - by Martin Hepp and Andreas Radinger, 2010-04-18 (v.5.1.4) (original post at 01:23)

2010-04-22

• RDF triple from role attribute? No way, please, that's as bad as rel="stylesheet" generates useless garbage in #rdfa (original post at 17:06)

2010-04-21

• OAuth 1.0 ProtocolがRFC 5849に。http://www.rfc-editor.org/rf... (original post at 10:15)

2010-04-20

• Why does the address bar show the tempolink instead of the permalink? [W3C Blog]
  why do browsers ignore the RFC and these repeated admonitions? Possibly due to lack of awareness of the issue, but more likely because the status quo is seen as protecting the user - by Jonathan Rees, 2010-04-19 (original post at 00:10)

2010-04-19

• SPARQL + pubsubhubbub = sparqlPuSH
  anyone can register a particular query to the RDF store (e.g. list all microblog posts, or list any changes made by X, using the Changesets vocabulary) and results are provided in an RSS / Atom feed that is then sync-ed using pubsubhubbub: each time new data corresponding the register query is added into the store, the store itself notifies the interested parties of such updates - by Alexandre Passant, 2010-04-18 (original post at 10:48)

2010-04-18

• QOTD "Linked people *and* linked information" 最近の@danjaの刺激的挑発に@danbriが「古典的文書形態情報、RDFでつながる情報、人の頭の中にある情報」という3つの切り口で応える。http://lists.w3.org/Archives... (original post at 23:17)
• GUO RDF Graph Diff
  GUO Graph Diff is a prototype script for performing "diffs" on RDF Graphs, the output of the diff is in RDF using GUO the Graph Update Ontology. The Graph Diffs produced are intended to be used as PATCHes against RDF graphs - by Nathan (original post at 18:29)
• GUO Specification - Graph Update Ontology
  GUO is an intentionally skinny ontology aimed at enabling lightweight RDF graph updates and graph synchronisation on a per triple level. GUO could be thought of as an RDF based diff for RDF graphs - by Nathan (original post at 18:28)
• Twitterアノテーションは、名前空間：キー：値の3点セットで、JSONあるいはURLのクエリパラメータによる付与を予定。サイズは512バイトだが2K程度に拡張するかも。RDFを実験する可能性も一言！ http://groups.google.com/gro... (original post at 10:56)
• RDF Dataset Notifications [Lost Boy]
  If we want to support truly distributed aggregation and processing of data then we need an efficient way to share updates. There’s been a lot of experimentation around different mechanisms, and PubSubHubbub seems to be a current favourite approach. I’ve been playing with it myself recently and have hacked up a basic push mechanism around Talis Platform stores - by Leigh Dodds, 2010-04-16 (original post at 00:06)
• Associating Schemas with XML documents 1.0 (First Edition)
  allows schemas using any schema definition language to be associated with an XML document by including one or more processing instructions with a target of xml-model in the document's prolog - W3C WG Note (Grosso and Kosek eds), 2010-04-15 (original post at 00:01)

2010-04-13

• DBpedia 3.5 released http://blog.dbpedia.org/2010... Wikipediaの情報ボックスから抽出し、340万の"thing"をRDFで表現（Wikipediaの325万件より多い…）。前版から50万件ほど増え、抽出速度、質ともに向上とのこと (original post at 01:47)

2010-04-12

• NSZL published linked data http://lists.w3.org/Archives... ハンガリー国立図書館がOPAC全データをリンクするデータとして公開。著者典拠ならFOAF、件名標目ならSKOSなどの語彙を用い、303転送でHTMLもしくはRDFを返す (original post at 23:22)

2010-04-07

• dcat vocabulary resources and examples [DERI Vocabularies]
  dcat is an RDF vocabulary for the exchange of data catalogs. Its primary purpose is the expression of government data catalogs, such as data.gov or data.gov.uk, in RDF - by Fadi Maali, 2010-03-09 (original post at 12:06)
• RFC 5785 Well-Known URI http://www.rfc-editor.org/rf... robots.txtなどの「既知URI」によるサイトメタデータを利用可能にするために、ルートパス/.well-known/を予約し、続く名前をIANAでの登録制にする (original post at 09:36)
• Linked Data Patterns http://patterns.dataincubato... by @ldodds + @iand. リンクするデータのためのデザインパターンを書籍スタイル（DocBook）で記述し、CC表示ライセンスでオンライン公開。PDF版あり。今後発展予定 (original post at 01:23)

2010-04-03

• appreciates ARC2's COUNT extension to SPARQL (original post at 01:43)

2010-04-02

• RFC 5841 TCP Option to Denote Packet Mood 再送信させられたら「悲しい」などパケットの気分を表現。OptionフィールドのKindを25として「:(」などと記述。http://www.rfc-editor.org/rf... まぁ米国はまだ4月1日だから (original post at 10:33)

2010-04-01

• Linked Open Numbers
  resource on natural numbers, containing literally billions of facts about the topic... carefully developed to be accessible not only to humans, but also using the most modern Semantic Web technologies to be a machine-understandable source of knowledge about numbers - 2010-04-01 (original post at 23:55)