num_q   Number of queries
num_ret    Total number of documents retrieved over all queries
num_rel    Total number of relevant documents over all queries
num_rel_ret    Total number of relevant documents retrieved over all queries
map    Mean Average Precision (MAP)
gm_ap    Average Precision. Geometric Mean, q_score=log(MAX(map,.00001))
R-prec    R-Precision (Precision after R (= num-rel for topic) documents retrieved)
bpref    Binary Preference, top R judged nonrel
recip_rank    Reciprical rank of top relevant document
ircl_prn.0.00    Interpolated Recall - Precision Averages at 0.00 recall
ircl_prn.0.10    Interpolated Recall - Precision Averages at 0.10 recall
ircl_prn.0.20    Interpolated Recall - Precision Averages at 0.20 recall
ircl_prn.0.30    Interpolated Recall - Precision Averages at 0.30 recall
ircl_prn.0.40    Interpolated Recall - Precision Averages at 0.40 recall
ircl_prn.0.50    Interpolated Recall - Precision Averages at 0.50 recall
ircl_prn.0.60    Interpolated Recall - Precision Averages at 0.60 recall
ircl_prn.0.70    Interpolated Recall - Precision Averages at 0.70 recall
ircl_prn.0.80    Interpolated Recall - Precision Averages at 0.80 recall
ircl_prn.0.90    Interpolated Recall - Precision Averages at 0.90 recall
ircl_prn.1.00    Interpolated Recall - Precision Averages at 1.00 recall
P5    Precision after 5 docs retrieved
P10    Precision after 10 docs retrieved
P15    Precision after 15 docs retrieved
P20    Precision after 20 docs retrieved
P30    Precision after 30 docs retrieved
P100    Precision after 100 docs retrieved
P200    Precision after 200 docs retrieved
P500    Precision after 500 docs retrieved
P1000    Precision after 1000 docs retrieved