Speech Signal Processing
- Large Vocabulary Continuous Speech Recognition, Keyword Spotting, and Word Recognition
- Discriminative Acoustic Feature Extraction
- Supervised/Unsupervised Acoustic Modeling and Language Modeling
- Contextual Biasing
- Utterance Verification and Confidence Measure
- Speaker Adaptation
- Spoken Dialogue Systems
- Automated Speaking Assessment / Spoken Language Assessment, Automatic Pronunciation Assessment
- Retrieval Modeling
- Query Formulation, Document Representation, Robust Audio Indexing
- Multilingual Information Retrieval
- Speech-based Multimedia Information Retrieval Systems
- Keyword/Topic-word Extraction
- Document Segmentation, Classification and Clustering
Natural Language Processing
- Part-of-Speech Tagging, Syntactic/Semantic Parsing
- Speech Summarization using Heterogeneous Information Sources
- Automatic Title Words Generation
- Machine Translation
- Intelligent Chinese Input Systems
- Automated Essay Scoring
Artificial Intelligence and Neural Networks
- Search Algorithms
- Machine Learning Techniques
- Semantic/Meaning/Knowledge Representations