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SIGIR
2012
ACM
13 years 8 months ago
To index or not to index: time-space trade-offs in search engines with positional ranking functions
Positional ranking functions, widely used in web search engines, improve result quality by exploiting the positions of the query terms within documents. However, it is well known ...
Diego Arroyuelo, Senén González, Mau...
TSP
2008
180views more  TSP 2008»
15 years 6 months ago
Algebraic Signal Processing Theory: Foundation and 1-D Time
This paper introduces a general and axiomatic approach to linear signal processing (SP) that we refer to as the algebraic signal processing theory (ASP). Basic to ASP is the linear...
Markus Püschel, José M. F. Moura
EH
2004
IEEE
102views Hardware» more  EH 2004»
15 years 10 months ago
Design Space Issues for Intrinsic Evolvable Hardware
This paper discusses the problem of increased programming time for intrinsic evolvable hardware (EHW) as the complexity of the circuit grows. We develop equations for the size of ...
James Hereford, David A. Gwaltney
CORR
2006
Springer
113views Education» more  CORR 2006»
15 years 6 months ago
The Tree Inclusion Problem: In Linear Space and Faster
Given two rooted, ordered, and labeled trees P and T the tree inclusion problem is to determine if P can be obtained from T by deleting nodes in T. This problem has recently been ...
Philip Bille, Inge Li Gørtz
ISAAC
2010
Springer
221views Algorithms» more  ISAAC 2010»
15 years 4 months ago
Improved Online Algorithms for 1-Space Bounded 2-Dimensional Bin Packing
In this paper, we study 1-space bounded 2-dimensional bin packing and square packing. A sequence of rectangular items (square items, respectively) arrive over time, which must be p...
Yong Zhang, Jing-Chi Chen, Francis Y. L. Chin, Xin...