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Web搜索引擎的批量查询处理Batch Query Processing for Web Search Engines |
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| 课程网址: | http://videolectures.net/wsdm2011_ding_pvs/ |
| 主讲教师: | Shuai Ding |
| 开课单位: | 纽约大学理工学院 |
| 开课时间: | 信息不详。欢迎您在右侧留言补充。 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Large web search engines are now processing billions of queries per day. Most of these queries are interactive in nature, requiring a response in fractions of a second. However, there are also a number of important scenarios where large batches of queries are submitted for various web mining and system optimization tasks that do not require an immediate response. Given the significant cost of executing search queries over billions of web pages, it is a natural question to ask if such batches of queries can be more efficiently executed than interactive queries. In this paper, we motivate and discuss the problem of batch query processing in search engines, identify basic mechanisms for improving the performance of such queries, and provide a preliminary experimental evaluation of the proposed techniques. Our conclusion is that significant cost reductions are possible by using specialized mechanisms for executing batch queries in Web search engines. |
| 关 键 词: | 计算机科学; 网页搜索; 批量查询 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2019-10-29：cwx |
| 阅读次数: | 42 |