Information retrieval from a phoneme time series database

Details Information retrieval from a phoneme time series database Information retrieval from a phoneme time series database

2007-12-27

arxiv.org/abs/0712.4275v1

Biology

Quantitative Biology

Quantitative Methods

6 Pages, 5 Figures

Scientific paper

Developing fast and efficient algorithms for retrieval of objects to a given user query is an area of active research. The present study investigates retrieval of time series objects from a phoneme database to a given user pattern or query. The proposed method maps the one-dimensional time series retrieval into a sequence retrieval problem by partitioning the multi-dimensional phase-space using k-means clustering. The problem of whole sequence as well as subsequence matching is considered. Robustness of the proposed technique is investigated on phoneme time series corrupted with additive white Gaussian noise. The shortcoming of classical power-spectral techniques for time series retrieval is also discussed.

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