Low-resource keyword search strategies for tamil
Nancy F. Chen, Chongjia Ni, I-Fan Chen, Sunil Sivadas, Van Tung Pham, Haihua Xu, Xiong Xiao, Tze Siong Lau, Su Jun Leow, Boon Pang Lim, Cheung-Chi Leung, Lei Wang, Chin‐Hui Lee, Alvina Goh, Eng Siong Chng, Bin Ma, Haizhou Li · 2015
We propose strategies for a state-of-the-art keyword search (KWS) system developed by the SINGA team in the context of the 2014 NIST Open Keyword Search Evaluation (OpenKWS14) using conversational Tamil provided by the IARPA Babel program. To tackle low-resource challenges and the rich morphological nature of Tamil, we present highlights of our current KWS system, including: (1) Submodular optimization data selection to maximize acoustic diversity through Gaussian component indexed N-grams; (2) Keywordaware language modeling; (3) Subword modeling of morphemes and homophones.