mENUNCIATE: Development of a computer-aided pronunciation training system on a cross-platform framework for mobile, speech-enabled application development. - Pengfei Liu 004; Ka-Wa Yuen; Wai-Kim Leung; Helen M. Meng (ISCSLP, 2012)

SeemGo: Conditional Random Fields Labeling and Maximum Entropy Classification for Aspect Based Sentiment Analysis. - Pengfei Liu 004; Helen M. Meng (SemEval@COLING, 2014)

Fine-grained Opinion Mining with Recurrent Neural Networks and Word Embeddings. - Pengfei Liu 004; Shafiq R. Joty; Helen M. Meng (EMNLP, 2015)

Topic modeling for conference analytics. - Pengfei Liu 004; Shoaib Jameel; Wai Lam; Bin Ma 001; Helen M. Meng (INTERSPEECH, 2015)

Integrating acoustic and state-transition models for free phone recognition in L2 English speech using multi-distribution deep neural networks. - Kun Li 003; Xiaojun Qian; Shiyin Kang; Pengfei Liu 004; Helen Meng (SLaTE, 2015)

Learning Track Representation and Trends for Conference Analytics. - Pengfei Liu 004; Shoaib Jameel; King Keung Wu; Helen M. Meng (HICSS, 2016)

An embedding approach for context-aware collaborative recommendation and visualization. - King Keung Wu; Pengfei Liu 004; Helen M. Meng; Yeung Yam (SMC, 2016)

A model of extended paragraph vector for document categorization and trend analysis. - Pengfei Liu 004; King Keung Wu; Helen M. Meng (IJCNN, 2017)

Group Gated Fusion on Attention-Based Bidirectional Alignment for Multimodal Emotion Recognition. - Pengfei Liu 004; Kun Li 003; Helen Meng (INTERSPEECH, 2020)

Automatic Speaker-level Pronunciation Assessment of L2 Speech Using Posterior Probabilities from Multiple Utterances. - Guolei Jiang; Chunhong Liao; Kun Li 003; Pengfei Liu 004; Linying Jiang; Helen Meng (ISCSLP, 2021)

Out-of-Scope Domain and Intent Classification through Hierarchical Joint Modeling. - Pengfei Liu 004; Kun Li 003; Helen Meng (IWSDS, 2021)

Open Intent Discovery through Unsupervised Semantic Clustering and Dependency Parsing. - Pengfei Liu 004; Youzhang Ning; King Keung Wu; Kun Li 003; Helen Meng (CoRR, 2021)

Hierarchical Modeling for Out-of-Scope Domain and Intent Classification. - Pengfei Liu 004; Kun Li 003; Helen Meng (CoRR, 2021)

Improving Rare Words Recognition through Homophone Extension and Unified Writing for Low-resource Cantonese Speech Recognition. - HoLam Chung; Junan Li; Pengfei Liu 004; Wai-Kim Leung; Xixin Wu; Helen Meng (ISCSLP, 2022)

PunCantonese: A Benchmark Corpus for Low-Resource Cantonese Punctuation Restoration from Speech Transcripts. - Yunxiang Li; Pengfei Liu 004; Xixin Wu; Helen Meng (INTERSPEECH, 2023)