Seth Ladd's Blog: March 2003

Tuesday, March 18, 2003

Audioscrobber

Audioscrobber is a really interesting new project. It attempts to match the music you like with new music you might like. It does this based on matching your listening tastes with other people who share your tastes. At last, the dream is here. Are you listening record companies? Using digital music to increase sales.

Thursday, March 13, 2003

64 bit Computing

Introduction to 64 bit Computing

Arstechnica has a good overview of 64 bit computing in an x86 world.

Wednesday, March 12, 2003

Time Zones in MySQL

Trying to figure out the relationship between timezones and MySQL. I'm thinking that MySQL just stores DATETIMEs as raw. That is, I tell it "2002-02-02 08:08:08" and that's it, with no timezone information to it at all. This makes me miss Java and Oracle.

Sunday, March 9, 2003

Thursday, March 6, 2003

The SWAD-Europe project aims to support W3C's Semantic Web initiative in Europe, providing targeted research, demonstrations and outreach to ensure Semantic Web technologies move into the mainstream of networked computing.

The TAO of Topic Maps

http://www.ontopia.net/topicmaps/materials/tao.html

It's subtitle: Finding the Way in the Age of Infoglut. This is one of my main areas of interest. With so much information out there, how does one filter out the useless stuff and absorb the interesting stuff? This is a large question. I think it has a lot to do with trust, which hasn't been touched on with RDF yet. I believe the SWAD-E has to come up with some stuff on that.

Using Topic Maps to Extend Relational Databases

http://www.xml.com/pub/a/2003/03/05/tmrdb.html

Topic Maps have never had the publicity as RDF does. This is probably due to RDF having W3C's blessing. In any case, it's good to start to pick up on what Topic Maps offer.

O’Reilly Weblogs

http://www.oreillynet.com/weblogs/

The homepage for all O'Reilly's blogs.

Wednesday, March 5, 2003

Model Theory

http://plato.stanford.edu/entries/model-theory/

Model theory began with the study of formal languages and their interpretations, and the kinds of classification that a particular formal language can make.

Social Meaning of RDF

http://www.xml.com/pub/a/2003/03/05/social.html

he RDF Concepts and Abstract Syntax specification (hereafter, "Concepts") says that an RDF graph ("a set of triples", according to Concepts 3.1) has two kinds of meaning: a formal and a social meaning. The formal meaning of an RDF graph results from applying the RDF semantics , based on model-theoretic semantics, to the graph. But, as both Concepts and the RDF semantics documents suggest, there is another aspect to the meaning of an RDF graph, the social meaning.

Tuesday, March 4, 2003

Challenges for a Semantic Web

http://www.cultivate-int.org/issue7/semanticweb/

Suggestions for a new kind of cultural semantics that is needed in order to reflect the richness of human experience.

SWAD-E Work: Distributed Trust Systems

http://www.w3.org/2001/sw/Europe/plan/workpackages/live/esw-wp-11.html

Use Semantic Web technology (RDF, RDF Schema) to describe mechanisms for expressing digital signatures and trust relationships.

Homemade dot Mac Server 2

http://www.macdevcenter.com/pub/a/mac/2002/09/20/homemade_dotmac_2.html

Part Two.

Homemade dot Mac Server

http://www.macdevcenter.com/pub/a/mac/2002/08/09/homemade_dotmac.html

Part One.

OWL Reference

http://www.w3.org/TR/owl-ref/

The Web Ontology Language OWL is a semantic markup language for publishing and sharing ontologies on the World Wide Web. OWL is developed as a vocabulary extension of RDF (the Resource Description Framework) and is derived from the DAML+OIL Web Ontology Language. This document contains a structured informal description of the full set of OWL language constructs and is meant to serve as a reference for OWL users who want to construct OWL ontologies.

Seth Ladd's Blog