Application of Topic Segmentation in Audiovisual Information Retrieval
نویسنده
چکیده
Segmentation into topically coherent segments is one of the crucial points in information retrieval (IR). Suitable segmentation may improve the results of IR system and help users to find relevant passages faster. Segmentation is especially important in audiovisual recordings, in which the navigation is difficult. We present several methods used for topic segmentation, based on textual, audio and visual information. The proposition of our approach to topic segmentation based on the fusion of audio and visual data is presented in the article.
منابع مشابه
Plundermatics: Real-time Interactive Media Segmentation for Audiovisual Analysis, Composition and Performance
This paper presents methods for real-time automated media segmentation, interactive audiovisual analysis, and media search in composition and performance tasks. In addition, we detail a use case where these tools have been deployed successfully as part of high profile public, national broadcast events, installations and exhibitions. These tools utilise a combination of data-mining and informati...
متن کاملStructuring Broadcast Audio for Information Access
One rapidly expanding application area for state-of-the-art speech recognition technology is the automatic processing of broadcast audiovisual data for information access. Since much of the linguistic information is found in the audio channel, speech recognition is a key enabling technology which, when combined with information retrieval techniques, can be used for searching large audiovisual d...
متن کاملIntegrating Audiovisual and Semantic Metadata for Applications in Broadcast Archiving
This paper describes the work done in the PrestoSpace project dealing with audiovisual and semantic content analysis, content description and retrieval in a broadcast archive environment. We present the metadata model that is used in the PrestoSpace system and discuss its design. A key issue is the integration of audiovisual content description and semantic metadata in the model as well as the ...
متن کاملThe socio - cognitive theory in information retrieval (IR)
Abstract Background and Aim: The socio-cognitive theory introduced in information science by Horland and Alberchtsen. The socio-cognitive view turns the traditional cognitive program upside down. The socio-cognitive theory emphasizes on different cultural and social structures of users. Hence, the aim of the article is to explain the role of socio - cognitive theory in information retrieval (I...
متن کاملTools and methods for objective or contextual evaluation of topic segmentation
In this paper we discuss the way of evaluating topic segmentation, from mathematical measures on variously constructed reference corpus to contextual evaluation depending on different topic segmentation usages. We present an overview of the different ways of building reference corpora and of mathematically evaluating segmentation methods, and then we focus on three tasks which may involve a top...
متن کامل