document: A more precise model for web retrieval Most research works on web retrieval latency are object-level based , which we think is insufficient and sometimes inaccurate . In this paper , we propose a fine grained operation-level Web Retrieval Dependency Model ( WRDM ) to provide more precise capture of web retrieval process . Our model reveals some new factors in web retrieval which can not be seen at object level but are very important to studies in the web retrieval area .
doc_bio_tags: O O O B O B I O O O O B I B O O O O O O O O O O O O O O O O O O O O O O O B I B B O O O O O O O O O B I O O O B O O O O O B I O O O O O O O O O O O O O O O O B I O O