Information Systems (TOIS)


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ACM Transactions on Information Systems (TOIS), Volume 30 Issue 3, August 2012

Special issue on searching speech
Martha Larson, Franciska de Jong, Wessel Kraaij, Steve Renals
Article No.: 15
DOI: 10.1145/2328967.2328968

Direct posterior confidence for out-of-vocabulary spoken term detection
Dong Wang, Simon King, Joe Frankel, Ravichander Vipperla, Nicholas Evans, Raphaël Troncy
Article No.: 16
DOI: 10.1145/2328967.2328969

Spoken term detection (STD) is a key technology for spoken information retrieval. As compared to the conventional speech transcription and keyword spotting, STD is an open-vocabulary task and has to address out-of-vocabulary (OOV) terms....

The nonverbal structure of patient case discussions in multidisciplinary medical team meetings
Saturnino Luz
Article No.: 17
DOI: 10.1145/2328967.2328970

Meeting analysis has a long theoretical tradition in social psychology, with established practical ramifications in computer science, especially in computer supported cooperative work. More recently, a good deal of research has focused on the...

Comparison of methods for language-dependent and language-independent query-by-example spoken term detection
Javier Tejedor, Michal Fapšo, Igor Szöke, Jan “Honza” Černocký, František Grézl
Article No.: 18
DOI: 10.1145/2328967.2328971

This article investigates query-by-example (QbE) spoken term detection (STD), in which the query is not entered as text, but selected in speech data or spoken. Two feature extractors based on neural networks (NN) are introduced: the first...

Sibyl, a factoid question-answering system for spoken documents
Pere R. Comas, Jordi Turmo, Lluís Màrquez
Article No.: 19
DOI: 10.1145/2328967.2328972

In this article, we present a factoid question-answering system, Sibyl, specifically tailored for question answering (QA) on spoken-word documents. This work explores, for the first time, which techniques can be robustly adapted from the usual QA...