Jilin Wang — accepted AI-conference papers

2021

Compressive Wideband Spectrum Sensing and Carrier Frequency Estimation with Unknown Mimo Channels

Hongwei Wang, Jilin Wang, Jun Fang, Hongbin Li

ICASSP 2021accepted

We consider the problem of joint wideband spectrum sensing and carrier frequency estimation in a sub-Nyquist sampling framework. Specifically, a multi-antenna receiver is used to estimate the carrier frequencies and power spectra of multiple narrowband transmissions that spread over a wide frequency…

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2021

Large Margin Training Improves Language Models for ASR

Jilin Wang, Jiaji Huang, Kenneth Ward Church

ICASSP 2021accepted

Language models (LM) have been widely deployed in modern ASR systems. The LM is often trained by minimizing its perplexity on speech transcript. However, few studies try to discriminate a "gold" reference against inferior hypotheses. In this work, we propose a large margin language model (LMLM). LML…

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