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In a file system used for big data analytics, hundreds of thousands of files exist. In such huge storage system, getting the metadata of a file takes long time. In this paper we propose an enhanced Bloom filter to accelerate the directory parsing process in large-scale file systems. Here a cache implemented on SSD keeps the metadata of directories and files accessed frequently or recently. When a...
As social network grows fast recently, numerous services are provided based on it. Here it is difficult for the users to choose a right service if a large number of choices exist. Recommender System (RS) is a software tool providing the suggestions of the items most useful to the user. The existing RSs do not properly consider the social relation of the entities in rating the choices. This paper proposes...
Handover is a critical issue for wireless networks of various protocols including IEEE 802.16e. In this paper we propose an efficient handover scheme which reduces the number of packets required to be transmitted for handover and increases the channel availability. It is based on a concept of group-based channel scan and scheduled handover with the mobile stations (MSs). Computer simulation reveals...
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