Zoran Stejic Yasufumi Takama Kaoru Hirota Modified hierarchical genetic algorithm for relevance feedback in image retrieval. 363-384 2004 8 Intell. Data Anal. 4 http://iospress.metapress.com/openurl.asp?genre=article&issn=1088-467X&volume=8&issue=4&spage=363 db/journals/ida/ida8.html#StejicTH04