1. Databases and Data Mining
李素瑛、曾憲雄、梁婷、彭文志、黃俊龍

2. Members and Research Directions
Multimedia databases and mining
李素瑛
E-learning platform and mining
曾憲雄
Information retrieval and Web mining 梁婷
Sensor data management and mining
彭文志
Mobile data management and mining
黃俊龍、彭文志

3. Sensor data management and mining
In-network mining
Object moving patterns
Clustering
Multi-domain sequential pattern mining
Outlier detection
Energy efficient query processing
Query optimization
Spatial query processing such as KNN and event surrounding query

4. In-Network Mining Mining object moving behavior
In-network mining algorithm
Hierarchy optimization
Energy efficient scheme for object tracking
Query processing mechanism 4 3
Location prediction
aggregation 2 1 1 1 1
Location prediction

5. Outliner Detection in WSN
Trust network for data accuracy
Building trust relations among sensors
Filtering faulty readings
Ensuring data accuracy

6. Location-dependent Services
Community
Discovery
Spatial Query
Processor
Folksonomy
Database
GPS
Query
Focused Crawler
Map Database
Adapted
Query List
Summarization
and Ranking
Recommendation
Service
Other
Services
Location-dependent Services

7. Research Area of Prof. S.-Y. Lee
Peer-to-Peer Content Based Information Retrieval
Video Understanding
Human behavior analysis
Video based analysis of sports video

8. Peer-to-Peer Content Based Information Retrieval
Traditional IR Systems
Centralized, but not Scalable
Traditional P2P System
Scalable
fault tolerant, self-organizing
Only support exact key match
Extend P2P with content-based search
Content-based Music/Image Retrieval
Semantic-based Publish/Subscribe
This work is about building p2p IR system using structured overlay networks, which is also called DHT
Efficient at lookup objects given precise key, not good at partial match, like we do with search engines.

9. Human Behavior Analysis
Object Extraction
Feature Selection
Action Recognition

10. Video based analysis of sports video
Sports video analysis
Ball and player tracking
Strategy analysis
Event detection
Video enrichment