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ICCAD
2001
IEEE
84views Hardware» more  ICCAD 2001»
14 years 4 months ago
Minimum-Buffered Routing of Non-Critical Nets for Slew Rate and Reliability Control
In high-speed digital VLSI design, bounding the load capacitance at gate outputs is a well-known methodology to improve coupling noise immunity, reduce degradation of signal trans...
Charles J. Alpert, Andrew B. Kahng, Bao Liu, Ion I...
FOCS
2008
IEEE
14 years 1 months ago
Beating the Random Ordering is Hard: Inapproximability of Maximum Acyclic Subgraph
We prove that approximating the Max Acyclic Subgraph problem within a factor better than 1/2 is Unique-Games hard. Specifically, for every constant ε > 0 the following holds:...
Venkatesan Guruswami, Rajsekar Manokaran, Prasad R...
ADHOCNOW
2010
Springer
13 years 5 months ago
On Minimizing the Sum of Sensor Movements for Barrier Coverage of a Line Segment
A set of sensors establishes barrier coverage of a given line segment if every point of the segment is within the sensing range of a sensor. Given a line segment I, n mobile sensor...
Jurek Czyzowicz, Evangelos Kranakis, Danny Krizanc...
ICALP
2009
Springer
14 years 7 months ago
Revisiting the Direct Sum Theorem and Space Lower Bounds in Random Order Streams
Estimating frequency moments and Lp distances are well studied problems in the adversarial data stream model and tight space bounds are known for these two problems. There has been...
Sudipto Guha, Zhiyi Huang
ESA
2005
Springer
113views Algorithms» more  ESA 2005»
14 years 1 months ago
Online View Maintenance Under a Response-Time Constraint
Abstract. A materialized view is a certain synopsis structure precomputed from one or more data sets (called base tables) in order to facilitate various queries on the data. When t...
Kamesh Munagala, Jun Yang 0001, Hai Yu