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142views more  SIAMSC 2010»
10 years 8 months ago
Hypergraph-Based Unsymmetric Nested Dissection Ordering for Sparse LU Factorization
In this paper we present HUND, a hypergraph-based unsymmetric nested dissection ordering algorithm for reducing the fill-in incurred during Gaussian elimination. HUND has several i...
Laura Grigori, Erik G. Boman, Simplice Donfack, Ti...
179views Education» more  CORR 2010»
10 years 10 months ago
Algebraic Constructions of Graph-Based Nested Codes from Protographs
Nested codes have been employed in a large number of communication applications as a specific case of superposition codes, for example to implement binning schemes in the presence ...
Christine A. Kelley, Jörg Kliewer
10 years 11 months ago
Improved Query Plans for Unnesting Nested SQL Queries
- The SQL language allows users to express queries that have nested subqueries in them. Optimization of nested queries has received considerable attention over the last few years. ...
Pranav Khaitan, Satish Kumar M, Korra Sathya Babu,...
10 years 11 months ago
Nested Named Entity Recognition
Many named entities contain other named entities inside them. Despite this fact, the field of named entity recognition has almost entirely ignored nested named entity recognition,...
Jenny Rose Finkel, Christopher D. Manning
11 years 9 days ago
SQL Nested Queries in SPARQL
SPARQL currently does not include any form of nested queries. In this paper we present a proposal to incorporate nested queries into SPARQL along the design philosophy of SQL neste...
Renzo Angles, Claudio Gutierrez
155views more  DM 2002»
11 years 1 months ago
Balanced nested designs and balanced arrays
Balanced nested designs are closely related to other combinatorial structures such as balanced arrays and balanced n-ary designs. In particular, the existence of symmetric balance...
Ryoh Fuji-Hara, Sanpei Kageyama, Shinya Kuriki, Yi...
94views more  COMBINATORICS 2004»
11 years 1 months ago
A Bijection Between Classes of Fully Packed Loops and Plane Partitions
It has recently been observed empirically that the number of FPL configurations with 3 sets of a, b and c nested arches equals the number of plane partitions in a box of size a
P. Di Francesco, Paul Zinn-Justin, Jean-Bernard Zu...
92views more  IJPP 2007»
11 years 1 months ago
Supporting Nested OpenMP Parallelism in the TAU Performance System
Nested OpenMP parallelism allows an application to spawn teams of nested threads. This hierarchical nature of thread creation and usage poses problems for performance measurement t...
Alan Morris, Allen D. Malony, Sameer Shende
108views more  JPDC 2008»
11 years 1 months ago
Energy minimization with loop fusion and multi-functional-unit scheduling for multidimensional DSP
Energy saving is becoming one of the major design issues in processor architectures with multiple functional units (FUs). Nested loops are usually the most critical part in multim...
Meikang Qiu, Edwin Hsing-Mean Sha, Meilin Liu, Man...