… In 1999, AT&T participated in the ad-hoc task and the Question Answering (QA), Spoken
Document Retrieval (SDR), and Web tracks. Most of our effort for TREC-8 focused on the QA …

… The submissions from AT&T Research Labs demonstrate that existing passage-retrieval
techniques can be successful for 250-byte runs, but are not suitable for 50-byte runs [18]. Their …

The TREC-8 Web Track defined ad hoc retrieval tasks over the 100 gigabyte VLC2 collection
(Large Web Task) and a selected 2 gigabyte subset known as WT2g (Small Web Task). …

… There will be another Question Answering track in TREC-9, which will be mostly the same
as the TREC-8 track. One change in the track will be to have a test set of 500 questions rather …

… AT&T attributed this excellent performance to a new approach they implemented for … in
the TREC-8 collection. The average story length in the TREC-8 collection is only 169 words. …

This paper describes the 1997 TREC-6 Spoken Document Retrieval (SDR) Track which
implemented a first evaluation of retrieval of broadcast news excerpts using a combination of …

… and in TREC-6 three groups (City University, AT&T, and IRIT) successfully got information from
… subtask is planned to be repeated in TREC-8 now that groups have more experience with …

… harder than the TREC-8 task because TREC-9 used actual users’ questions while TREC-8
used … The submissions from AT&T Research Labs demonstrate that existing passage-retrieval …

… For convenience, we worked with the top-ranked document set generated by AT&T's
TREC-7 adhoc system and provided as a service by Amit Singhal to Question Answering Track …

… (ATT, Waterloo and ACSys (ineligible for the medal)) achieved the rst two criteria. ATT also
… It is likely that the VLC track will be not run in TREC-8 but that the VLC2 data will be used in …