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A Basic Study of User Utility Maximizing Content Retrieval from Information Networks

机译:用户实用程序最大化信息网络内容检索的基础研究

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摘要

This paper proposes some basic methods of content search yielding high user utility or user's satisfaction from numerous information sources scattered over large-scale networks. In these methods, the search policy is decided by the estimated user utility gain and/or current user utility for each search action, and the most favorable combination of information sources and search content items is selected so as to enlarge the total user utility of the entire search activity. In addition, we evaluate the efficiency of the methods by computer simulations, in which we specify the network topology, user utility functions, probabilities of existence of the search content items in each information source, and so on, apply the proposed methods and other methods for comparison, and compare their aggregate utility gains as an estimation index. The proposed methods are found to achieve good performance in general and an index value about 2.45 times that of ordinary search is observed in an extreme simulation scenario. We discuss the pros and cons of the proposed methods for all the simulation scenarios.
机译:本文提出了一些基本的内容搜索方法,这些方法可以从散布在大型网络中的众多信息源中产生很高的用户效用或用户满意度。在这些方法中,由每个搜索动作的估计用户效用增益和/或当前用户效用决定搜索策略,并选择信息源和搜索内容项的最有利组合,以扩大搜索引擎的总用户效用。整个搜索活动。此外,我们通过计算机仿真评估了这些方法的效率,其中我们指定了网络拓扑,用户实用程序功能,每个信息源中搜索内容项存在的可能性等等,应用所建议的方法和其他方法进行比较,并比较它们的总效用收益作为估算指标。发现所提出的方法总体上实现了良好的性能,并且在极端模拟情况下观察到的索引值约为普通搜索的索引值的2.45倍。我们讨论了所有模拟方案中所提出方法的优缺点。

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