Keyword Extraction for Medium-Sized Documents Using Corpus-Based Contextual Semantic Smoothing

Table 10

Different combinations of keyword extraction and keyphrase extraction processes.

S#	Combination of processes				Change in
1	Keyword extraction + adjacent keywords in to form keyphrases				—
2	Keyword extraction + adjacent keywords in to form top- keyphrases
3	Keyword extraction (top- unigrams) + adjacent keywords in to form keyphrases				—
4	Keyword extraction (top- unigrams) + adjacent keywords into form top-keyphrases

Bold values represent the best results achieved in terms of F-measure.