Placing search in context: The concept revisited
Placing search in context: The concept revisited
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DOI：
10.1145/503104.503110
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发表时间：
2002-01-01
影响因子：
5.6
通讯作者：
Ruppin, E
中科院分区：
文献类型：
--
作者：
Finkelstein, L;Gabrilovich, E;Ruppin, E
基于关键字的搜索引擎作为基于 Web 的信息检索的流行手段如今已得到广泛使用。尽管此类系统看似简单，但需要相当多的技能才能满足重要的信息需求。本文提出了一种在上下文中执行搜索的新概念范例，该范例在很大程度上自动化了搜索过程，甚至为非专业用户提供了高度相关的结果。这种范例在 IntelliZap 系统中实际实现，其中搜索是从用户在她查看的文档中标记的文本查询发起的，并由该文档中标记查询周围的文本（“上下文”）引导。上下文驱动的信息检索过程涉及语义关键字提取和聚类，以自动生成新的增强查询。后者被提交给许多通用和特定领域的搜索引擎。然后，使用上下文对搜索结果进行语义重新排序。实验结果证明，使用上下文来指导搜索，甚至可以有效地为没有经验的用户提供高级的网络搜索工具。
Keyword-based search engines are in widespread use today as a popular means for Web-based information retrieval. Although such systems seem deceptively simple, a considerable amount of skill is required in order to satisfy non-trivial information needs. This paper presents a new conceptual paradigm for performing search in context, that largely automates the search process, providing even non-professional users with highly relevant results. This paradigm is implemented in practice in the IntelliZap system, where search is initiated from a text query marked by the user in a document she views, and is guided by the text surrounding the marked query in that document ("the context"). The context-driven information retrieval process involves semantic keyword extraction and clustering to automatically generate new, augmented queries. The latter are submitted to a host of general and domain-specific search engines. Search results are then semantically reranked, using context. Experimental results testify that using context to guide search, effectively offers even inexperienced users an advanced search tool on the Web.