Keyword Extraction for Contextual Advertising

Contextual advertising is a major revenue source for today’s companies.Keyword extraction is a key step in this kind of advertising,through which appropriate advertising Keywords are extracted from Web pages so that corresponding ads can be triggered. This paper describes a system that learns how to extract keywords from web pages for advertisement targeting. Firstly a text network for a single webpage is build,then PageRank is applied in the network to decide on the importance of a word,finally top-ranked words are selected as keywords of the webpage. The algorithm is tested on the corpus of blog pages,and the experimental results prove practical and effective.