RDF関連メモ on Planet masaka : 2008-01

Planet masakaから2008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。

2008-01-31

• got RDF graph from NLP result. Looks not so bad (original post at 23:53)
• continues experiments to extract RDF graph from NLP results (original post at 17:19)

2008-01-30

• finds that SKUA project shows interest in thisweek-sw's RDF bookmark format. An blog entry from Tony Linde: http://tinyurl.com/2e9sh5 (original post at 10:02)

2008-01-28

• RDF Semantics 1.3 says "Plain literals ... are always interpreted as referring to themselves", i.e. they are not "denoted" by references (original post at 23:51)
• doubts in SKOS WD "nothing in the RDF or OWL Full semantics which prevents the use of a URI or a blank node to denote an RDF plain literal" (original post at 23:40)

2008-01-27

• testing an XSLT to convert OAI-PMH DC record to RDF/XML. See http://tinyurl.com/3y3hrw, and sample output http://tinyurl.com/2d76qt (original post at 19:20)
• Category:RDFizer - SIMILE
  index of SIMILE projects that transform existing data into an RDF representation. (at 09:37)

2008-01-24

• wants to follow @danbri's FOAF/SPARQL discussion, but not enough time... more later (original post at 12:19)

2008-01-18

• thanks @gridinoc, nice reading. was wondering how OWL 1.1 n-ary predicate would be expressed in RDF graph :-) (original post at 00:46)

2008-01-17

• pondering how to express n-ary predicates in plain vainlla RDF (original post at 23:05)
• @bengee, I got I needed source encoding for RDFa parser. RDF/XML parser did right in encoding, and revision broke it. more on ARC-ML. txs. (original post at 20:28)
• thanks @bengee, but Shift_JIS doesn't work since xml_parser_create_ns() fails. Use a small RDF at /works/2008/misc/0117-sjis-rdf (if needed) (original post at 10:40)

2008-01-16

• @kasei, RDF::Query rejects more than two AND (&&) conditions in FILTER, while ok in case OR (||) (original post at 22:31)

2008-01-12

• trying Semantic Radar FF extension (original post at 23:39)

2008-01-10

• reading OWL 1.1 Mapping to RDF Graphs WD (original post at 18:10)
• reading OWL 1.1 MT Semantics WD (original post at 16:52)

2008-01-05

• fetching flickr photo data in order to integrate them into desktop metadata RDF: #flickr, #metadata (original post at 22:14)
• generating an experimental mapping table between Exif/RDF properties and Drew Noakes' metadata extractor Class/Fields [#metadata, #exif] (original post at 01:45)

2008-01-02

• @kasei, /ns/exif2rdf.pl should work with your images. it's different from webservice, but generates RDF using exif schema. does it help? (original post at 11:39)