lower pefing with taking top half words then combining

measure = tfidf-avg
single keyword matched = 143
multi keyword matched = 1892
unmatched = 4193
total num 1grams (ie candidates suggested * 3 in textrank style) =
12474.0
totalNumGods  = 4913
precision = 0.32675016056518946
recall = 0.41420720537349887
measure = tfidf
single keyword matched = 121
multi keyword matched = 1900
unmatched = 4207
total num 1grams (ie candidates suggested * 3 in textrank style) =
12474.0
totalNumGods  = 4913
precision = 0.32450224791265253
recall = 0.41135762263382863
measure = textrank
single keyword matched = 159
multi keyword matched = 660
unmatched = 6930
total num 1grams (ie candidates suggested * 3 in textrank style) =
12474.0
totalNumGods  = 4913
precision = 0.10569105691056911
recall = 0.16670059027071035