CIIR Experiments for TREC Legal 2007

نویسندگان

  • Howard R. Turtle
  • Donald Metzler
چکیده

Four baseline experiments using standard Indri retrieval facilities and simple query formulation techniques and two experiments using more advanced formulations (dependence models and pseudo-relevance feedback) are described. All of the experiments perform substantially better than the median performance of automatic runs but exhibit lower estimated precision and recall at B than the reference Boolean run.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Evaluation of Query Formulations in the Negotiated Query Refinement Process of Legal e-Discovery: UMKC at TREC 2007 Legal Track

UMKC participated in the 2007 legal track. Our experiments focused mainly on evaluating the different query formulations in the negotiated query refinement process of legal e-discovery. For our study, we considered three sets of paired runs in vector space model and language model respectively. Our experiments indicated that although the Boolean query negotiating process was successful for the ...

متن کامل

On Retrieving Legal Files: Shortening Documents and Weeding Out Garbage

This paper describes our participation in the TREC Legal experiments in 2007. We have applied novel normalization techniques that are designed to slightly favor longer documents instead of assuming that all documents should have equal weight. We have also developed a new method for reformulating query text when background information is provided with an information request. We have also experim...

متن کامل

Experiments with the Negotiated Boolean Queries of the TREC 2007 Legal Discovery Track

We analyze the results of several experimental runs submitted for the TREC 2007 Legal Track (also sometimes known as the Legal Discovery Track). We submitted 4 boolean query runs (the initial proposal by the defendant, the rejoinder by the plaintiff, the final negotiated query, and a variation of the final query which had proximity distances doubled). We submitted 2 vector query runs (one based...

متن کامل

MultiText Legal Experiments at TREC 2008

Our TREC 2008 e ort used fusion IR methods identical to those used for our TREC 2007 e ort; in addition we used logistic regression to attempt to learn the optimal K value for the primary F1@K measure introduced at TREC 2008. We used the Wumpus search engine combining several methods that have proven successful, including cover density ranking and Okapi BM25 ranking, and combination methods. St...

متن کامل

INQUERY and TREC-8

This year the Center for Intelligent Information Retrieval (CIIR) at the University of Massachusetts participated in seven of the tracks: ad-hoc, ltering, spoken document retrieval, small web, large web, question and answer, and the query tracks. We spent signi cant time working on the ltering track, resulting in substantial performance improvement over TREC-7. For all of the other tracks, we u...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007