Guohua Lei

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Homeostasis of the endoplasmic reticulum (ER) is essential for normal cellular functions. Disturbance of this homeostasis causes ER stress and activates the Unfolded Protein Response (UPR). The Ufm1 conjugation system is a novel Ubiquitin-like (Ubl) system whose physiological target(s) and biological functions remain largely undefined. Genetic study has(More)
This paper reports our participation of CEAS Spam-filter Challenge 2008. The logistic regression model, n-gram and TONE (Train On /Near Error) were used to build the systems. We improved the weighting method which reduces the impact of the features appearing both in spam messages and ham messages.. We achieved competitive results in all tasks and got the(More)
HIT2 Lab participated in NTCIR 7 IR4QA task. In this task many topics consist of name entities, so Google translation was used to translate query terms because of its high performance on name entity translation. We use KL-divergence model to perform retrieval and Chinese character bigram as our indexing unit. Pseudo feedback was used trying to improve(More)
This is the first time HIT 2 Lab 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(More)
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