Multi-view semi-supervised learning for dialog act segmentation of speech
Yükleniyor...
Dosyalar
Tarih
2010-02
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
IEEE-INST Electrical Electronics Engineers Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Sentence segmentation of speech aims at determining sentence boundaries in a stream of words as output by the speech recognizer. Typically, statistical methods are used for sentence segmentation. However, they require significant amounts of labeled data, preparation of which is time-consuming, labor-intensive, and expensive. This work investigates the application of multi-view semi-supervised learning algorithms on the sentence boundary classification problem by using lexical and prosodic information. The aim is to find an effective semi-supervised machine learning strategy when only small sets of sentence boundary-labeled data are available. We especially focus on two semi-supervised learning approaches, namely, self-training and co-training. We also compare different example selection strategies for co-training, namely, agreement and disagreement. Furthermore, we propose another method, called self-combined, which is a combination of self-training and co-training. The experimental results obtained on the ICSI Meeting (MRDA) Corpus show that both multi-view methods outperform self-training, and the best results are obtained using co-training alone. This study shows that sentence segmentation is very appropriate for multi-view learning since the data sets can be represented by two disjoint and redundantly sufficient feature sets, namely, using lexical and prosodic information. Performance of the lexical and prosodic models is improved by 26% and 11% relative, respectively, when only a small set of manually labeled examples is used. When both information sources are combined, the semi-supervised learning methods improve the baseline F-Measure of 69.8% to 74.2%.
Açıklama
This material is based upon work supported in part by the Defense Advanced Research Projects Agency (DARPA) CALO (FA8750-07-D-0185, Delivery Order 0004), in part by the Scientific and Technological Research Council of Turkey (TUBITAK) funding at SRI, in part by a J. William Fulbright Post-Doctoral Research Fellowship, Isik University Research Fund ( Projects: 05B304, 09A301), DARPA GALE (HR0011-06-C-0023) and in part by the Swiss National Science Foundation through the research network, IM2 fundings at ICSI. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the funding agencies. The associate editor coordinating the review of this manuscript and approving it for publication was Dr. Ruhi Sarikaya
Anahtar Kelimeler
Boosting, Co-training, Prosody, Self-training, Semi-supervised learning, Sentence segmentation
Kaynak
IEEE Transactions on Audio, Speech, and Language Processing
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
18
Sayı
2
Künye
Güz, Ü., Cuendet, S., Hakkani Tür, D. & Tür, G. (2010). Multi-view semi-supervised learning for dialog act segmentation of speech. IEEE Transactions on Audio, Speech, and Language Processing, 16(2), 320-329. doi:10.1109/TASL.2009.2028371
