文摘
Faced with the deluge of data available in biological databases, it becomes increasingly difficult for scientists to obtain reasonable sets of answers to their biological queries. A critical example appears in medicine, where physicians frequently need to get information about genes associated with a given disease. When they pose such queries to Web portals (e.g., Entrez NCBI) they usually get huge amounts of answers which are not ranked, making them very difficult to be exploited. In the last years, while several ranking approaches have been proposed, none of them is considered as the most promising.