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In many network and IT systems, users submit loosely-defined (or fuzzy) requests to obtain answers, solutions or resources. In this paper, we focus on trouble-shooting problem tickets in an IT service management system. In such a system, problems are typically reported using vague user-generated descriptions of the symptoms (e.g., 'my email is not working!') in a ticket. IT Specialists are then responsible...
Given a probabilistic graph G representing an intermittently connected network and routing algorithm A, we wish to determine a delivery subgraph G[A] of G with at most k edges, such that the probability Conn2 (G[A]) that there is a path from source s to destination t (in a graph H chosen randomly from the probability space defined by G[A]) is maximized. To the best of our knowledge, this problem and...
Broadcast protocols play a vital role in multihop wireless networks. Due to the broadcast nature of radio signals, a node's interference range can be larger than its transmission range, i.e., it can interfere with other node's reception even if the latter is not within its transmission range. To design an efficient broadcast protocol, both the collision and the interference among multiple transmissions...
Geometric routing using source-destination locations has been widely suggested as a scalable alternative to conventional routing approaches in mobile ad hoc networks. Recently, there has been considerable attention on face routing in planar graphs constructed from overlay graphs in wireless networks. Given a plane tiled into an infinite mesh of polygons, an overlay graph is defined as one in which...
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