UCAS at TREC-2014 Microblog Track

Qingli Ma, Ben He, Dongxing Li
2014 Text Retrieval Conference  
University of Chinese Academy of Sciences (UCAS) participated in the first task, namely temporally-anchored ad hoc retrieval in Microblog track, aiming to efficiently and effectively retrieve tweets. Based on the conventional application of learning to rank, we incorporated a machine learning approach, such as logistic regression for selecting high-quality training data for improving the effectiveness. Except for the tweets' content features, we also used the features of the web information,
more » ... ernal evidence, which is related with the URLS to improve the effectiveness.
dblp:conf/trec/MaHL14 fatcat:pbnk455z2zaxnhtnx5oy3kgd7q