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» Improved Approximation Algorithms for Connected Sensor Cover
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MFCS
2007
Springer
15 years 4 months ago
On Approximation of Bookmark Assignments
Consider a rooted directed acyclic graph G = (V, E) with root r, representing a collection V of web pages connected via a set E of hyperlinks. Each node v is associated with the pr...
Yuichi Asahiro, Eiji Miyano, Toshihide Murata, Hir...
LATIN
2004
Springer
15 years 3 months ago
Combinatorial Problems on Strings with Applications to Protein Folding
We consider the problem of protein folding in the HP model on the 3D square lattice. This problem is combinatorially equivalent to folding a string of 0’s and 1’s so that the s...
Alantha Newman, Matthias Ruhl
CCCG
2007
14 years 11 months ago
Generalized Watchman Route Problem with Discrete View Cost
In this paper, we introduce a generalized version of the Watchman Route Problem (WRP) where the objective is to plan a continuous closed route in a polygon (possibly with holes) a...
Pengpeng Wang, Ramesh Krishnamurti, Kamal Gupta
MDM
2009
Springer
123views Communications» more  MDM 2009»
15 years 4 months ago
Operator Placement for Snapshot Multi-predicate Queries in Wireless Sensor Networks
— This work aims at minimize the cost of answering snapshot multi-predicate queries in high-communication-cost networks. High-communication-cost (HCC) networks is a family of net...
Georgios Chatzimilioudis, Huseyin Hakkoymaz, Nikos...
DEXAW
2005
IEEE
263views Database» more  DEXAW 2005»
15 years 3 months ago
Energy Aware Routing Protocol for Heterogeneous Wireless Sensor Networks
In this paper we present Energy Aware Random Asynchronous Wakeup (RAW-E), a novel crosslayer power management and routing protocol for heterogeneous wireless sensor and actor netw...
Vamsi Paruchuri, Arjan Durresi, Leonard Barolli