Download Dynamic taxonomies and faceted search: theory, practice, and by Giovanni Maria Sacco (auth.), Giovanni Maria Sacco, Yannis PDF

Download Dynamic taxonomies and faceted search: theory, practice, and by Giovanni Maria Sacco (auth.), Giovanni Maria Sacco, Yannis PDF

By Giovanni Maria Sacco (auth.), Giovanni Maria Sacco, Yannis Tzitzikas (eds.)

Current entry paradigms for the net, i.e., direct entry through se's or database queries and navigational entry through static taxonomies, have lately been criticized simply because they're too inflexible or simplistic to successfully deal with various sensible seek purposes. a 3rd paradigm, dynamic taxonomies and faceted seek, specializes in user-centered conceptual exploration, that is way more common in seek projects than retrieval utilizing certain specification, and has swiftly turn into pervasive in glossy internet facts retrieval, in particular in severe purposes resembling product choice for e-commerce. it's a seriously interdisciplinary zone, the place information modeling, human components, good judgment, inference, and effective implementations needs to be handled holistically.

Sacco, Tzitzikas, and their individuals supply a coherent roadmap to dynamic taxonomies and faceted seek. the person chapters, written through specialists in every one appropriate box and thoroughly built-in by means of the editors, aspect elements like modeling, schema layout, approach implementation, seek functionality, and consumer interplay. the elemental techniques of every zone are brought, and complicated issues and up to date examine are highlighted. an extra bankruptcy is totally dedicated to present and rising program parts, together with e-commerce, multimedia, multidimensional dossier platforms, and geographical info platforms.

The presentation objectives complicated undergraduates, graduate scholars and researchers from diversified parts – from laptop technological know-how to library and data technological know-how – in addition to complicated practitioners. provided that study effects are at present scattered between very diversified courses, this quantity will let researchers to get a coherent and finished photograph of the nation of the art.

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Extra resources for Dynamic taxonomies and faceted search: theory, practice, and experience

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E. to define interpretations through descriptions). Specifically, we may consider a description function D : Obj → P(T ) (where P(T ) denotes the power set of T ). From such a function D we can define an interpretation, denoted by ID , as follows: ID (t) = {o ∈ Obj | t ∈ D(o)} This approach is more close to the way data are usually entered by users in applications. For instance, when users annotate images with tags, they actually provide descriptions of these images which can then be used to define the interpretations of tags.

S [321], where the query component is organized as a taxonomy of topics, with each topic being a selector. A simpler approach which Fig. 1 Google Scholar: different query fields for Author, Publication, Date 3 Comparison with Other Techniques 37 still qualifies as a guided query component is a query form in which users can only select items from widgets such as combo boxes, radio, or checkbox groups and cannot enter values directly. Since human-computer interaction research indicates that recognizing and selecting is considerably easier than remembering and entering, guided query components are desirable where appropriate.

Let M = (F , I ) be a taxonomy-based source. Let A be a subset of Obj (A ⊆ Obj) which could be the result of an arbitrary access method. Below we will define the restriction of M on A, hereafter denoted by (F , I )|A . e. (F , I )|A , is again a materialized faceted taxonomy, and let us write (F , I )|A = (F ′ , I ′ ). It comprises a restriction of the interpretation function I and a restriction of the faceted taxonomy F . The later is the reduced taxonomy (as mentioned in Chap. 1). e. ′ I ⊑ I (according to Def.

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