In 2009 , the second WePS campaign showed similar trends regarding the use of NE features ( Artiles et al. , 2009 ) .
weps 2 evaluation campaign overview of the web people search clustering task
Javier Artiles Julio Gonzalo Satoshi Sekine
Other features used by the systems include noun phrases ( Chen and Martin , 2007 ) , word n-grams ( Popescu and Magnini , 2007 ) , emails and URLs ( del ValleAgudo et al. , 2007 ) , etc. . In 2009 , the second WePS campaign showed similar trends regarding the use of NE features ( Artiles et al. , 2009 ) . Due to the complexity of systems , the results of the WePS evaluation do not provide a direct answer regarding the advantages of using NEs over other computationally lighter features such as BoW or word n-grams .
In 2009 , the second WePS campaign showed similar trends regarding the use of NE features ( @@CITATION ) .