This document is designed as being a simple but comprehensive introductory publication for anybody trying to get into the Semantic Web: from beginners through to long time hackers.
A gentle introduction to the Semantic Web by Sean B. Palmer, 2001
This document is designed as being a simple but comprehensive introductory publication for anybody trying to get into the Semantic Web: from beginners through to long time hackers
The first few posts to this blog will be most coherent if they are read in chronological order. A new entry will be posted each Wednesday morning. To see the latest posts in blog format, click here. To get updates when new posts appear, you can subscribe by RSS, or follow me on google+ or…
It is one of the most famous ideas in modern physics, but string theory is also strange and difficult to understand. Our guide should help you get started
Hiemstra, R. (1994). Self-directed learning. In T. Husen & T. N. Postlethwaite (Eds.), The International Encyclopedia of Education (second edition), Oxford: Pergamon Press. Reprinted here by permission.
This article introduces Resource Description Framework (RDF), developed by the W3C for Web-based metadata, using XML as an interchange syntax. RDF's essential aim is to make work easier for autonomous agents, which would refine the Web by improving search
This article introduces Resource Description Framework (RDF), developed by the W3C for Web-based metadata, using XML as an interchange syntax. RDF's essential aim is to make work easier for autonomous agents, which would refine the Web by improving search
The first part in a new series that introduces Perl to people who haven't programmed before. If you weren't sure how to get started with Perl, here's your chance!
Was ist NoSQL? Wie kommt es, dass NoSQL-Datenbanken derzeit auf so viel Interesse stoßen? Wird NoSQL herkömmliches SQL ersetzen? Unser Überblick will diese Fragen beantworten.
METS: An Overview & Tutorial: Metadata Encoding and Transmission Standard (METS) Official Web Site. The METS schema is a standard for encoding descriptive, administrative, and structural metadata regarding objects within a digital library, expressed using the XML schema language of the World Wide Web Consortium. The standard is maintained in the Network Development and MARC Standards Office of the Library of Congress, and is being developed as an initiative of the Digital Library Federation.
The Kolmogorov-Smirnov test (KS-test) tries to determine if two datasets differ significantly. The KS-test has the advantage of making no assumption about the distribution of data. (Technically speaking it is non-parametric and distribution free.) Note however, that this generality comes at some cost: other tests (for example Student's t-test) may be more sensitive if the data meet the requirements of the test. In addition to calculating the D statistic, this page will report if the data seem normal or lognormal. (If it is silent, assume normal data at your own risk!) It will enable you to view the data graphically which can help you understand how the data is distributed.
By now, there is a good chance you have at least heard of Ruby on Rails. For those who haven't, Rails is a framework using the Ruby language that allows one to create database-driven web applications in a fraction of the time it would normally take. I'm n