Weiwei Liu

A Wireless Covert Channel Based on Constellation Shaping Modulation

2018 · Security and Communication Networks

Wireless covert channel is an emerging covert communication technique which conceals the very existence of secret information in wireless signal including GSM, CDMA, and LTE. The secret message bits are always modulated into artificial noise …

Improved DNN-HMM English Acoustic Model Specially For Phonotactic Language Recognition

2019

The now-acknowledged sensitive of Phonotactic Language Recognition (PLR) to the performance of the phone recognizer front-end have spawned interests to develop many methods to improve it. In this paper, improved Deep Neural Networks Hidden Markov …

The Emerging Trends of Multi-Label Learning

2021 · IEEE Transactions on Pattern Analysis and Machine Intelligence

Exabytes of data are generated daily by humans, leading to the growing needs for new efforts in dealing with the grand challenges for multi-label learning brought by big data. For example, extreme multi-label classification is …