Enriching a Thesaurus to Improve Retrieval of Audiovisual Documents

Hollink, Laura; Malaisé, Veronique; Schreiber, Guus

doi:10.1007/978-3-540-92235-3_6

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…We are interested in finding out how much this approach jeopardizes precision and whether the joint effect can be judged to be positive or negative. The present paper is an extension of earlier work, presented at the SAMT 2008 conference [8]. We have extended both steps of our approach-anchoring and enrichment-and increased the scale of the retrieval experiment.…”

Section: Introductionmentioning

confidence: 89%

“…Because the original preferred terms and non-preferred terms in the GTAA are in plural form, we added singular forms. The set of GTAA terms was further extended by splitting compound terms into separate words (again using Celex) and searching two online dictionaries 7,8 for synonymous forms. The list of possible synonyms was not further processed, but simply taken 'as is' as additional candidate labels for the GTAA terms.…”

Section: Approachmentioning

confidence: 99%

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Thesaurus enrichment for query expansion in audiovisual archives

Hollink¹,

Malaisé²,

Schreiber³

2009

Multimed Tools Appl

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It is common practice in audiovisual archives to disclose documents using metadata from a structured vocabulary or thesaurus. Many of these thesauri have limited or no structure. The objective of this paper is to find out whether retrieval of audiovisual resources from a collection indexed with an in-house thesaurus can be improved by enriching the thesaurus structure. We propose a method to add structure to a thesaurus by anchoring it to an external, semantically richer thesaurus. We investigate the added value of this enrichment for retrieval purposes. We first anchor the thesaurus to an external resource, WordNet. From this anchoring we infer relations between pairs of terms in the thesaurus that were previously unrelated. We employ the enriched thesaurus in a retrieval experiment on a TRECVID 2007 dataset. The results are promising: with simple techniques we are able to enrich a thesaurus in such a way that it adds to retrieval performance.

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Section: Introductionmentioning

confidence: 89%

Section: Approachmentioning

confidence: 99%

Thesaurus enrichment for query expansion in audiovisual archives

Hollink¹,

Malaisé²,

Schreiber³

2009

Multimed Tools Appl

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“…First, we map terms in the GTAA thesaurus to concepts (synsets) in WordNet. Second, based on this mapping, we enrich the structure of the in-house GTAA thesaurus by inferring new relations between terms within the thesaurus (Hollink et al 2008). Figure 5 illustrates how a relation between two terms in the GTAA is inferred from their correspondence to WordNet synsets.…”

Section: Enriching Catalogue Descriptionsmentioning

confidence: 99%

Section: Enriching Catalogue Descriptionsmentioning

confidence: 99%

A Multidisciplinary Approach to Unlocking Television Broadcast Archives

Hollink¹,

Schreiber²,

Huurnink³

et al. 2009

Interdisciplinary Science Reviews

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Audiovisual material is a vital component of the world's heritage but it remains diffi cult to access. With the Netherlands Institute for Sound and Vision as one of its partners, the MuNCH project aims to investigate new methods for improving access to a wide range of audiovisual documents. MuNCH brings together three research fi elds: multimedia analysis, language technology and semantic technologies.Within the MuNCH project, we have investigated several combinations of these fi elds. We have compared text matching, ontology querying, and semantic visual querying as methods to translate a multimedia query to the vocabulary of the retrieval system. In addition, we have investigated how users make such a translation, and have used this as a benchmark to create automatic methods. We have used multimedia technology to automatically detect objects and scenes as they occur in video, and made use of language technology to exploit automatic transcriptions of speech. We have enriched the Sound and Vision thesaurus that is used to annotate the TV programmes in order to provide a user with a wider range of search results.In order to verify the results of the project against real user needs, MuNCH has participated in the creation of a logging system which monitors the usage of the Sound and Vision catalogue system. Insights in the needs of real users will be used as input for all three of MuNCH's research strands.keywords Multimedia, Retrieval, Content-based image retrieval, Semantic web, Language technology, User queries 254 LAURA HOLLINK et al.

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Sirup

Maccatrozzo

Terstall

Aroyo

et al. 2017

Proceedings of the 22nd International Conference on Intelligent User Interfaces

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Enriching a Thesaurus to Improve Retrieval of Audiovisual Documents

Cited by 4 publications

References 8 publications

Thesaurus enrichment for query expansion in audiovisual archives

Thesaurus enrichment for query expansion in audiovisual archives

A Multidisciplinary Approach to Unlocking Television Broadcast Archives

Sirup

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