PKUICST at TREC 2014 Microblog Track: Feature Extraction for Effective Microblog Search and Adaptive Clustering Algorithms for TTG.
Chao LvFeifan FanRunwei QiangYue FeiJianwu YangPublished in: TREC (2014)
Keyphrases
- information access
- information retrieval
- feature extraction
- clustering algorithm
- information seeking
- social media
- retrieval effectiveness
- image processing
- social networks
- microblog posts
- hot topics
- spectral clustering
- test collection
- search space
- principal component analysis
- wavelet transform
- feature vectors
- topic specific
- preprocessing