Ultimate Guide to Microformats: Reference and Examples If you’re not familiar with the concept of POSH (plain old semantic HTML), the first thing to know is that producing semantic code that reflects content contextually (rather than stylistically) is a critical component of the web design process. While HTML has a whole bunch of awesome elements by which to convey meaning, a slew of purpose-built microformats (conventions) have been created to better represent the kind of content that exists on the page. This guide discusses popular microformats that can enhance the semantics and interoperability of your website. What Are Microformats? Microformats are pretty interesting if you give them a chance. While microformats are not a W3C standard yet–though many microformats either have been recommended to the W3C as standards or are in draft form–the level of support browsers and web services have for them explains their utility. Simply put: microformats are worth learning about and implementing into the websites you build. Drawbacks of Microformats
Challenges for Ontology Design Author: Thomas GruberTitle: Grande Challenges for Ontology Design (or is it Vente?)Date: March 1, 2007Type: Invited presentation Citation: Tom Gruber (2007). Grande Challenges for Ontology Design (or is it Vente?). File: challenges-for-ontology-design.ppt Context: Monthly presentation at international conference call of the Ontolog Community in which participants interact over synchornous and asynchronous communication. Abstract: Why bother with ontology design, particularly when it involves the trouble of collaborating with other people and their peculiar ideas? In this session I will frame a discussion about ontology design, using the model of engineering design that has brought tremendous success to electronic and physical engineering disciplines, and to some extent software engineering.
About WordNet - WordNet - About WordNet WordNet is supported by the National Science Foundation under Grant Number 0855157. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the creators of WordNet and do not necessarily reflect the views of the National Science Foundation. About WordNet WordNet® is a large lexical database of English. Nouns, verbs, adjectives and adverbs are grouped into sets of cognitive synonyms (synsets), each expressing a distinct concept. WordNet superficially resembles a thesaurus, in that it groups words together based on their meanings. Structure The main relation among words in WordNet is synonymy, as between the words shut and close or car and automobile. Relations The most frequently encoded relation among synsets is the super-subordinate relation (also called hyperonymy, hyponymy or ISA relation). Meronymy, the part-whole relation holds between synsets like {chair} and {back, backrest}, {seat} and {leg}. Adjectives are organized in terms of antonymy.
Alpha list of refactorings You have constructors on subclasses with mostly identical bodies. Create a superclass constructor; call this from the subclass methods. more… Two subclasses have the same field. Move the field to the superclass. more… You have methods with identical results on subclasses. Move them to the superclass. more… A field is used only by some subclasses. Move the field to those subclasses. more… Behavior on a superclass is relevant only for some of its subclasses. Move it to those subclasses. more… You have conditional code that is unnecessarily verbose and does not use the most readable Ruby construct. Replace the conditional code with the more idiomatic Ruby construct. more… Remove Assignments to Parameters The code assigns to a parameter. Use a temporary variable instead. more… You have a variable that is acting as a control flag for a series of boolean expressions. Use a break or return instead. more… A class is doing too much simple delegation. Get the client to call the delegate directly. more… more… Remove it. more…
SKOS Simple Knowledge Organization System - home page SKOS is an area of work developing specifications and standards to support the use of knowledge organization systems (KOS) such as thesauri, classification schemes, subject heading lists and taxonomies within the framework of the Semantic Web ... [read more] Alignment between SKOS and new ISO 25964 thesaurus standard (2012-12-13) ISO 25964-1, published in 2011, replaced the previous thesaurus standards ISO 2788 and ISO 5964 (both now withdrawn). Members of the Working Group responsible for ISO 25964 have gone on to consider the implications for SKOS users. They have developed a set of linkages between the elements of the ISO 25964 data model and the ones from SKOS, SKOS-XL, and MADS/RDF. From Chaos, Order: SKOS Recommendation Helps Organize Knowledge (2009-08-18) Call for Review: SKOS Reference Proposed Recommendation (2009-06-15) The Semantic Web Deployment Working Group has published the Proposed Recommendation of SKOS Simple Knowledge Organization System Reference.
Folksonomies - Cooperative Classification and Communication Through Shared Metadata The Creation of Metadata: Professionals, Content Creators, Users Metadata is often characterized as “data about data.” Metadata is information, often highly structured, about documents, books, articles, photographs, or other items that is designed to support specific functions. These functions are usually to facilitate some organization and access of information. Traditionally metadata is created by dedicated professionals. While professionally created metadata are often considered of high quality, it is costly in terms of time and effort to produce. User created metadata is a third approach, and this paper focuses on grassroots community classification of digital assets. One form of explicit user created metadata was popularized in the late 1990’s with link-focused websites called weblogs (Blood 2000). Tagging Content in Del.icio.us and Flickr Del.icio.us ( henceforth referred to as “Delicious”) is a tool to organize web pages. “a social bookmarks manager. Ambiguity
The Registry! :: home Top 100 most popular RDF namespace prefixes | cygri’s notes on web data I run prefix.cc, a website for RDF developers where anyone can register and look up the expansion URIs for namespace prefixes such as foaf, dc, qb or void. The site tracks which prefixes gets looked up most often. This allows some insight into the popularity of RDF vocabularies and datasets. This post is a snapshot of the top 100 most requested prefixes as of today. Caveats: The counts reflect what knowledgeable RDF hackers are interested in. That being said: The data is below, and a CSV version is available too. OntoClean Central Bio2RDF: Linked Data for the Life Sciences The Product Types Ontology: Use Wikipedia pages for describing products or services with GoodRelations