Clasificación, ontoloxías, taxonomías

Organización e clasificación de contidos e recursos

Ontology is Overrated: Categories, Links, and Tags

Ontology is Overrated: Categories, Links, and Tags -

Classification systems are confusing, providing a side-topic interest for most people. It's not exactly fascinating stuff. Ontology is Overrated: Categories, Links, and Tags, however, presents a very readable overview of the limits of classification by categories and hierarchies. The challenge is similar to organizing a folder structure on a computer. Which files go into which folders? How do we handle overlap? What if I forget which folder I put the file into? What if someone else is using my computer to find the file? Alternative classification schemes (like tags or "folksonomies") give greater control to the end user. Google, as an example, has done a great job of "throwing content into a bin" and giving users a simple interface to find information. Intelligence is applied to content by the person at the time of search. Tags take it one step further and allow groups of users to tag and reclassify information in a manner that makes sense to them.

[elearnspace]

Reasoning and Ontologies for Personalized E-Learning in the Semantic Web - Nicola Henze, Peter Dolog and Wolfgang Nejdl; JET&S

Reasoning and Ontologies for Personalized E-Learning in the Semantic Web - Nicola Henze, Peter Dolog and Wolfgang Nejdl; JET&S - The challenge of the semantic web is the provision of distributed information with well-defined meaning, understandable for different parties. Particularly, applications should be able to provide individually optimized access to information by taking [Online Learning Update]

Ontologies and the Semantic Web for E-learning - Demetrios G Sampson, et al; Journal of Educational Technology and Society

Ontologies and the Semantic Web for E-learning - Demetrios G Sampson, et al; Journal of Educational Technology and Society - The Semantic Web is the emerging landscape of new web technologies aiming at web-based information and services that would be understandable and reusable by both humans and machines. Ontologies, generally defined as a representation of a shared concep [Online Learning Update]

Reasoning and Ontologies for Personalized E-Learning in the Semantic Web

Reasoning and Ontologies for Personalized E-Learning in the Semantic Web - The challenge of the semantic web is the provision of distributed information with well-defined meaning, understandable for different parties. Particularly, applications should be able to provide individually optimized access to information by taking the individual needs and requirements of the users into account. In this paper we propose a framework for personalized e-Learning in the semantic web and show how the semantic web resource description formats can be utilized for automatic generation of hypertext structures from distributed metadata.From [Edu_RSS]

A Framework of Guidance for Building Good Digital Collections

A Framework of Guidance for Building Good Digital Collections - I'm passing along this reference that was reported and reviewed in OLDaily (with Stephen's comments about the resource). JH
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About more than just collections, this framework is a very nice document describing principles for collections, objects, metadata and projects. Nothing in here I would disagree with, quite a bit I would enthusiastically support, and dozens of references to frameworks, metadata schemas, and more. If you work with digital repositories or collections, have a look at this one. This document was originally prepared for the Institute of Museum and Library Services (IMLS) and released in 2001. This is the 2004 version. By Various Authors, NISO, February 1, 2004 OLDaily
[EduResources Weblog--Higher Education Resources Online]

The Cognitive Cost of Classification

The Cognitive Cost of Classification -

This is a nice read on the problems related with using faceted classifications on the Web and on the opportunities and advantages of 'social classification' systems.

"Facets do relieve the tyranny of the taxonomy that demands that "everything has a place and should be in that place". But that flexibility comes with a stiff price -- because the number of terms and their combinations are expanded, faceted classfications multiply the number of decisions required to classify a given document."
thanks infodesign

[elearningpost]

Taxonomies, Categorization, Classification

Taxonomies, Categorization, Classification

"There are a number of applications that can help people create taxonomies and place information objects within their categories, although the amount of automation can vary. Some programs simply allow anyone to manually add a URL to a specific category by submitting a site. Others allow human catalogers to create sophisticated rules to specify certain words and phrases which will place a page in a category. Others accept a "training set" within an existing taxonomy, and will place documents in categories based on similarities. Still others attempt to automate the entire process, grouping pages into topics based on programmatic evaluation of the contents."

Faceted Metadata

Faceted Metadata

" Metadata is information about information: more precisely, it's structured information about resources. This can be a single set of hierarchical subject labels, such as a Yahoo or Open Directory Project category. More often, the metadata has several facets: attributes in various orthogonal sets of categories. This is often stored in database record fields and tables, especially for product catalogs."

A Taxonomy Primer

A Taxonomy Primer

"Taxonomies…thesauri…classification systems…synonym rings. We’ve heard all of these terms in the context of the Web."

Interactive Information Retrieval based on Faceted Classification using Views

Interactive Information Retrieval based on Faceted Classification using Views

"This paper discusses constraints in knowledge organisation for information retrieval introduced by the difficulty of separating logical views of data, information, concepts and their relationships, from the physical means by which we seek to implement retrieval systems."

The Role of Classification Schemes in Internet Resource Description and Discovery

The Role of Classification Schemes in Internet Resource Description and Discovery

"This report investigates the use of classification schemes to aid retrieval in a network environment, specifically with regard to the Internet. The library community, over many years, had appeared to favour subject indexing systems (the use of a controlled vocabulary to assign indexing terms to documents) over the use of traditional classification schemes (grouping documents into a hierarchical structure of subject categories). During the first period of the development of networked information services, many specialists, especially those from the computing community, also questioned the value of library subject description systems in principle, pointing to the accomplishments of full-text indexing software."

Ranganathan

Ranganathan

"Shiyali Ramamrita Ranganathan (1872-1972) is one of the most influential figures in the field of library and information sciences. This paper argues that Ranganathan is a thinker ahead of his time. The fact that his ideas and his Colon Classification scheme are not well received and practised can probably be attributed to his vision being too advanced for his contemporary world of technology. Considering the progress that has been made since his times, Ranganathan's ideas deserve another investigation. Upon comparing the nature of his classification scheme with the various technologies like relational databases, online retrieval systems, or the World Wide Web, it is quite evident that Ranganathan's ideas of classification are more applicable now than before."

FacetMap

FacetMap

"FacetMap continues to bring you innovations in faceted classification. There's a certain type of facet which almost everyone would like to use, but which no one has offered -- until now. The new Spectrum facet type allows your users to navigate numerical data, by specifying their own range of numbers instead of picking from a list of arbitrarily predefined ranges."

Ontology 101

Ontology 101

"Ontologies have become core components of many large applications yet the training material has not kept pace with the growing interest. This paper addresses the issues of why one would build an ontology and presents a methodology for creating ontologies based on declarative knowledge representation systems."

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