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» Upper Bounds for Vertex Cover Further Improved
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COMCOM
2004
90views more  COMCOM 2004»
13 years 7 months ago
Understanding bandwidth-delay product in mobile ad hoc networks
Bandwidth-delay product (BDP) and its upper bound (BDP-UB) have been well-understood in wireline networks such as the Internet. However, they have not been carefully studied in th...
Kai Chen, Yuan Xue, Samarth H. Shah, Klara Nahrste...
COCOON
2003
Springer
14 years 19 days ago
On a Conjecture on Wiener Indices in Combinatorial Chemistry
Drugs and other chemical compounds are often modeled as polygonal shapes, where each vertex represents an atom of the molecule, and covalent bonds between atoms are represented by...
Yih-En Andrew Ban, Sergei Bespamyatnikh, Nabil H. ...
FOCS
1998
IEEE
13 years 11 months ago
Exponential Separations between Restricted Resolution and Cutting Planes Proof Systems
We prove an exponential lower bound for tree-like Cutting Planes refutations of a set of clauses which has polynomial size resolution refutations. This implies an exponential sepa...
Maria Luisa Bonet, Juan Luis Esteban, Nicola Gales...
CORR
2011
Springer
210views Education» more  CORR 2011»
13 years 2 months ago
Statistical Compressed Sensing of Gaussian Mixture Models
A novel framework of compressed sensing, namely statistical compressed sensing (SCS), that aims at efficiently sampling a collection of signals that follow a statistical distribu...
Guoshen Yu, Guillermo Sapiro
INFOCOM
2011
IEEE
12 years 10 months ago
Optimal multiple-coverage of sensor networks
—In wireless sensor networks, multiple-coverage, in which each point is covered by more than one sensor, is often required to improve detection quality and achieve high fault tol...
Xiaole Bai, Ziqiu Yun, Dong Xuan, Biao Chen, Wei Z...