QCRI at TREC 2014: Applying the KISS principle for the TTG task in the Microblog Track
Walid Magdy, Wei Guang Gao, Tarek El-Ganainy, Zhongyu Wei · 2014
In this paper we present our work on the ad-hoc search and the tweet timeline generation (TTG) tasks of TREC-2014 Microblog track. Regarding the ad-hoc search task, we used our best developed system over the last year, which include hyperlink-based query expansion and re-ranking models fusion. For the new tweet timeline generation task, we applied a straightforward and simple approach, which depends on clustering retrieval results based on cosine similarities between tweets. We believe that our simple approach achieved a good result, since it was shown in scatter-plot of participants ‟ runs that our best run in the TTG task achieved the 4th rank among 48 runs based on the f1-measure.