说明：A general evaluation framework for topical crawlers
说明：A Web crawler design for data mining
说明：An adaptive model for optimizing performance of an incremental web crawler
说明：The evolution of the web and implications for an incremental crawler
说明：A New Algorithm for Clustering Search Results
说明：Hierarchical Clustering Algorithms for Document Datasets
说明：A general evaluation framework for topical crawlers
说明：A Web crawler design for data mining
说明：An adaptive model for optimizing performance of an incremental web crawler
说明：SentiWordNet_ A publicly available lexical resource for opinion mining