This year represents the fourth iteration of the TREC Microblog track, which has been
running since 2011. The track continued using the “evaluation as a service” model [8, 7], in …

This paper describes our approaches to the TREC 2012 Microblog Track. We explore the
query expansion and document expansion techniques to address the retrieval of short tweet …

By incorporating diverse sources of evidence of relevance, learning to rank has been widely
applied to real-time Twitter search, where users are interested in fresh relevant messages …

The Border Gateway Protocol (BGP), which is used to distribute routing information between
autonomous systems (ASes), is a critical component of the Internet's routing infrastructure. It …

Recently learning to rank has been widely used in real-time Twitter Search by integrating
various of evidence of relevance and recency features into together. In real-time Twitter …

One major difficulty in performing ad-hoc search on microblogs such as Twitter is the limited
vocabulary of each document due their short length. In this paper, two approaches to …

Spam and wildly varying documents make searching in T witter challenging. Most T witter
search systems generally treat a T weet as a plain text when modeling relevance. However …

Recently, an increasing number of information retrieval studies have triggered a resurgence
of interest in redefining the algorithmic estimation of relevance, which implies a shift from …

Recency is an important dimension of relevance for real-time Twitter search as users tend to
be interested in fresh news and events. By incorporating various sources of evidence, the …

This paper describes our system for the Tweet Timeline Generation (TTG) task of the
Microblog track, at the Text Retrieval Conference (TREC) 2014. Intuitively, given a collection …