RDF関連メモ on Planet masaka : 2010-01

Planet masakaから2010年1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。

2010-01-31

• Case Study: Use of Semantic Web Technologies on the BBC Web Sites
  Creating web identifiers for every item the BBC .. allows us to enable very rich cross-domain user journeys... The RDF representations of these web identifiers allow developers to use our data to build applications. The two issues, providing cross-domain navigation and machine-readable representations, are tightly interleaved - by Yves Raimond et al., 2010-01-29 (original post at 10:56)

2010-01-28

• Open Packaging Format (OPF) 2.0 v1.0
  the Open Publication Structure (OPS) Specification, describes a standard for representing the content of electronic publications and is meant to reduce barriers to the proliferation of content... Open Packaging Format (OPF) Specification defines the mechanism by which the various components of an OPS publication are tied together and provides additional structure and semantics to the electronic publication, 2007-09-11 (Rec) (original post at 09:30)
• @w3c, some links to new SPARQL 1.1 WDs are broken from W3C's top page (should s/2001/2010/) (original post at 08:09)
• SPARQL 1.1 Property Paths (FPWD) http://www.w3.org/TR/2010/WD... グラフパターンが空白ノードをはさんだプロパティの連鎖になっているときに、XPathのような感じで簡潔に記述する。ほかに6つの草案も更新 (original post at 08:04)

2010-01-27

• IETFにIRI（国際化資源識別子）の改訂を検討する新作業部会が開設されて、6月のRFC発行を目指すそうだ http://www.ietf.org/dyn/wg/c... (original post at 10:25)

2010-01-26

• Why Linked Data for data.gov.uk? [Jeni's Musings]
  you already know that the best APIs are RESTful APIs... Linked data is about following these rules for publishing data... the best evidence we have for how the web of linked data will progress is the evidence of how things were for the human web... Nothing will happen overnight, but gradually there will be network effects: more shared URIs, more shared vocabularies, making it both easier to adopt and more beneficial for everyone - by Jeni Tennison, 2010-01-26 (original post at 23:29)
• Microdata, semantic markup for both RDFers and non-RDFers http://bnode.org/blog/2010/0... from @bengee HTMLによるRDFのネイティブサポートという千載一遇の機会を生かそうよと提案 #html5 (original post at 23:05)
• What is the value of Linked Data to the news industry? [Inside guardian.co.uk blog]
  I think that one of the most important things to understand about a 'Linked Data' future for news is that this is about building a platform for a range of products and services... It is about collaborating on some conventions of classification and naming that will help us all as the semantic data web matures. Not one ontology to rule them all, but a way of publishing Linked Data that meets certain standards, and making these interoperable - by Martin Belam, 2010-01-25 (original post at 01:45)
• LESS - The Data Web for Humans [AKSW]
  LESS is an end-to-end approach for the syndication and use of linked data based on the definition of templates for linked data resources and SPARQL query results. Such syndication templates are edited, published and shared by using this collaborative Web platform - 2010-01 (original post at 01:02)

2010-01-25

• SPARQL Query Cache [AKSW Projects]
  implemented our approach as a small proxy layer, which resides between the Semantic Web application and the SPARQL/SPARUL endpoint. All SPARQL queries and SPARUL updates are routed through this proxy. Once the proxy receives a query, it checks whether a result for this query is cached in its local store - by Soeren Auer, 2010-01-23 (original post at 17:35)
• 最近議論されているRDF構文の見直しについて、RDF/XML仕様のエディタから RT @dajobe: RDF Syntaxes 2.0 blog post: http://journal.dajobe.org/jo... #turtle #rdfxml (original post at 15:20)
• 英米政府データをグラフ化して比較。SPARQLを使うようだ。RT @jahendler:.. http://graves.cl/usa_uk/pie.... grabs data from both US and UK data.gov's - needs work but great start! (original post at 14:06)

2010-01-24

• Live Microdata http://foolip.org/microdataj... @foolipの#microdata.jsを使ってRDF/Turtle、JSON、vCard、iCalを取り出すフォーム #html5 (original post at 09:49)

2010-01-22

• おぉ、data.gov.ukはSPARQLで検索できるのか。ウェブページから得られる情報（RDFa含む）とまだ必ずしも連動していないような感じだけれど、意欲的。http://data.gov.uk/sparql (original post at 10:27)

2010-01-21

• 最近活発に議論されている次世代RDFについて、W3Cとして今後どう取り組むべきかを議論するワークショップを6月頃に開催。W3C Workshop — RDF Next Steps http://www.w3.org/2009/12/rd... (original post at 12:55)
• Understanding the Semantic Web: Bibliographic Data and Metadata [ALA TechSource]
  Chapter 1: Library Data in a Modern Context; Chapter 2: Changing the Nature of Library Data; Chapter 3: Resources - by Karen Coyle, ALA Library Technology Reports, Volume 46, Number 1 / January 2010 (original post at 01:12)

2010-01-20

• Managing RDF Using Named Graphs [Lost Boy]
  This thinking is prompted is in large part by thinking how best to use Named Graphs to support publishing of Linked Data, but also most recently by the first Working Drafts drafts of SPARQL 1.1 - by Leigh Dodds, 2009-11-05 (original post at 10:07)
• "IPv4 Address Blocks Reserved for Documentation" is now RFC 5737. 192.0.2.0/24, 198.51.100.0/24, 203.0.113.0/24は文書記述のために予約（exampleドメインと同様） (original post at 09:59)

2010-01-19

• 邦訳が出るらしい。なかなかの良書 @jahendler: ...Japanese preface to the new translation of "Semantic Web for the Working Ontologist" http://tw.rpi.edu/weblog/201... (original post at 15:53)
• SWSWiki [W3C Blog]
  The new wiki makes use of Semantic Media Wiki... A good example is the way Semantic Web tools are handled ... The template that helps creating that page adds a number of Semantic Media Wiki statements which also yield an RDF description for the tool - by Ivan Herman, 2010-01-18 (original post at 01:36)
• RDFのモデルはトリプル、microdataのは入れ子可な名前―値リストと。うーん、まあね。RT @danbri: chatted a bit with @hixie & co about microdata/rdfa designs - http://www.voanews.com/engli... and entertainment (original post at 01:15)

2010-01-18

• oort - Out of RDF Transmogrifying [Google Code]
  Oort is a collection of formats and libraries/tools aimed to facilitate use of RDF... aims to be an umbrella for methods of using RDF in settings where code-centric objects, such as JSON (and "instrumental" xml) are easier to work with than full-fledged RDF. e.g.:SparqlTree, Gluon, Grit (Grokkable RDF Is Transformable) - by lindstream (original post at 10:05)

2010-01-15

• Semantic Web Standards Wiki http://www.w3.org/2001/sw/wi... 従来のESW Wikiを引き継ぐものとして、Semantic Media Wikiベースに。今ちょっとホットなRDF2Wishlistページもできている (original post at 00:05)

2010-01-14

• Default Prefix Declaration
  proposal::Define a trivial XML language to associate prefixes with ns URIs; Define a link relation "dpd" for X/HTML, and a PI xml-dpd and/or an attr xml:dpd for XML; Implement a registry which maps from media types to a published dpd file; Define a precedence... and a semantics in terms of namespace information items or equivalent - by Henry S. Thompson, 2010-01-13 (original post at 16:58)
• "The language tag should be viewed as a vestige of how RDF was used in the early days. Today it is an ugly hack" 2008? http://www.rdfabout.com/intr... (original post at 00:59)

2010-01-10

• Unobtrusive Namespaces (slides)
  Proposals:: Unobtrusive Namespaces: Remove the need for prefixes in almost all documents; Allow the use of prefixes where it makes sense (e.g. RDF) or where disambiguation is needed; Namespace Definition File assocates elements and namespace URIs, and can include other NDFs. Invisible Namespaces: Any XML application (including Web browsers) is allowed to have a default Namespace Definition File; The file does not have to exist or be read (hence imaginary) as long as the application behaves as if it eisted; Users can augment the default with an NDF of their own, but this cannot redefine elements in the default NDF; hence, Web browsers can do incremental rendering before fetching any user-supplied NDF - by Liam Quin, 2010-01-07 (original post at 19:16)

2010-01-08

• URI Scheme for Short Message Service (eg. sms:+15105550101?body=hello%20there) is now RFC 5724 http://www.rfc-editor.org/rf... (original post at 10:29)

2010-01-06

• Unique URI-s for OWL 2 Profiles and Semantic Web Entailment Regimes http://www.w3.org/blog/SW/20... (original post at 01:07)

2010-01-05

• QOTD: RDF uses literals to refer to literal values... no direct provision for talking about literals themselves http://lists.w3.org/Archives... (original post at 12:40)