Legal Adhoc Track
RIRES: Russian Information Retrieval Evaluation Seminar

 Call for participation 
 General principles 
 Test collections 
 Relevance tables 


Legal Adhoc Track

Adhoc search in a collection of legal documents


The purpose of this track is to evaluate adhoc search methods on a non-Web collection.

For this track the standard procedure is used.

Test Collection

The source dataset is the legal documents collection (2007).

Task Description for Participating Systems

Each participant is granted access to the collection and a set of queries. Queries are selected from logs of Kodeks search engine for first two weeks of December, 2006. The total number of queries is 14797.

Expected result is an ordered list of document URLs. Maximum list size is 100 per query.

Evaluation Methodology

  • instructions for assessors:
    Assessors evaluate document relevance to the query basing on the extended description of the user information need.
  • evaluation method: pooling (pool depth is 50)
  • relevance scale:
    • yes / probably yes / perhaps yes / no / impossible to evaluate
  • official metrics:
    • precision
    • recall
    • TREC 11-point precision/recall graph
    • bpref

Data Formats