HIT2Lab at CLEF: an Exploration of the TEL Task

* This work is done at HITLab, Heilongjiang Institute of Technology. The research is supported by the Key Project of the National Science Foundation of China (60736044), National Science Foundation of China (60873105), the Science and Technology Break-through Project of Heilongjiang (GZ07A108), the Project of the Natural Science Foundation of Heilongjiang Province (F2007-14). Abstract This is the first time HITLab has participated in CLEF. The Adhoc TEL task used a collection of electronic card catalog records from British Library, it is different from all the text retrieval tasks we’ve ever involved. In our runs, we used language modeling approach for retrieval model and incorporated pseudo-feedback, which have been proved effective in previous experiments. For bilingual tasks, we used Google translation service for query translation. We also adopted methods that have showed good effects in TEL 2009 task, including a stopword list provided by UniNE and partial fields indexing.