4th International Conference on Spoken Language Processing

Philadelphia, PA, USA
October 3-6, 1996

Modeling of Contextual Effects and its Application to Word Spotting

Yuji Yonezawa, Masato Akagi

Japan Advanced Institute of Science and Technology, Ishikawa, Japan

We propose a model of spectral contextual effects to simulate the superior recognition ability of humans and apply it to a front-end processor for word spotting. This model assumes that perceived spectra are influenced by adjacent spectral peaks and that the magnitude of the influence can be estimated by the minimum classification error criterion. Three experiments were carried out to evaluate the performance of the model. The results show that the model can compensate for neutralized spectra and bring them to their typical patterns. This improves word spotting accuracy.

Full Paper

Bibliographic reference.  Yonezawa, Yuji / Akagi, Masato (1996): "Modeling of contextual effects and its application to word spotting", In ICSLP-1996, 2063-2066.