This archive contains the match records of the qualifying stage in Bermuda Bowl 2005. 
Complete records of Bermuda Bowl 2005, including raw scores, semi-finals and finals
are available at http://www.worldbridge.org/tourn/Estoril.05/Estoril.htm. The data
provided in this archive are used for the experiments in the following paper: 

T.-K. Huang, C.-J. Lin, and R. C. Weng. Ranking Individuals by group comparisons.  
To appear in Journal of Machine Learning Research (2008.
http://www.csie.ntu.edu.tw/~cjlin/papers/genBTexp/genBTexp-jmlr.pdf
A short version appears at ICML 2006.

Please find more detailed descriptions there.
This archive consists of three files: 
records, pairinfo, and players_id.

--records: 

It contains the match records. The first line in the file
has two numbers: the total number of matches and the total number of 
participating partnerships. Starting from the second line, each three lines
represent a match. The first line of the three, which indicates the partnerships that form
the "plus" group in the match, is formatted as

n p_1 p_2 p_3 ... p_n 

where n is the number of partnerships in the group and p_i's are 
the IDs of the member partnerships. The second line of the three
follows the same format and represents the "minus" group in the match.
The third line contains two numbers, the victory points (VP) obtained 
by the plus group and the minus group, respectively. 
For example, in this match 

2 1 58
2 48 37
10.0 20.0

the plus group has two partnerships, 1 and 58, the minus group 
has two partnerships, 48 and 37. The plus group earned 10.0 VPs
in this match, while the minus group earned 20.0.



--partnership_info:

This file contains information on partnerships. 
Each line stands for a partnership and contains five 
fields separated by commas:

The first field is the ID of the partnership; it is the same ID used in "records."
The second field contains the IDs of the two players in the partnership, separated by "&".
The third field is the number of matches played by the partnership.
The fourth field is the team (usually a country) where the partnership is from. 
The fifth field is the team's rank in the qualifying stage, obtained by comparing each 
team's total VPs.

For example, this partnership 

0,100&101,14,RUSSIA,13

has ID 0, consists of players 100 and 101, has played 14 matches 
in the qualifying stage, belongs to the team RUSSIA, which ranked
13th after the qualifying stage ended.



--players_info:

This file contains information on players.
Each line stands for a player and contains three fields separated by colons:

The first field is the player's team (country).
The second field is the name of the player.
The third field is the ID of the player, the same ID used in "partnership_info".

For example, this player

ARGENTINA:Walter FORNASARI:0

belongs to the team ARGENTINA, is named Walter FORNASARI, and has ID 0.
