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IEEECSA
2009
13 years 7 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,...
IEAAIE
2009
Springer
13 years 7 months ago
Plan Repair in Conflict-Free Routing
In conflict-free routing a set of agents have to traverse a common infrastructure without interfering with each other. Maza and Castagna [1] showed how route plans can be repaired ...
Adriaan ter Mors, Cees Witteveen
IDA
2009
Springer
13 years 7 months ago
Source Separation of Phase-Locked Subspaces
We present a two-stage algorithm to perform blind source separation of sources organized in subspaces, where sources in different subspaces have zero phase synchrony and sources in...
Miguel Almeida, Ricardo Vigário
ICVS
2009
Springer
13 years 7 months ago
Automatic Classification of Image Registration Problems
This paper introduces a system that automatically classifies registration problems based on the type of registration required. Rather than rely on a single "best" algorit...
Steve Oldridge, Gregor Miller, Sidney Fels
ICRA
2009
IEEE
136views Robotics» more  ICRA 2009»
13 years 7 months ago
PDAC-based underactuated 3D bipedal walking - Stabilization of PDAC constants and walking direction control -
This paper proposes a three-dimensional biped dynamic walking algorithm based on Passive Dynamic Autonomous Control (PDAC) which is previously proposed. The robot dynamics is model...
Tadayoshi Aoyama, Kosuke Sekiyama, Yasuhisa Hasega...
ICRA
2009
IEEE
131views Robotics» more  ICRA 2009»
13 years 7 months ago
Efficient C-space and cost function updates in 3D for unmanned aerial vehicles
When operating in partially-known environments, autonomous vehicles must constantly update their maps and plans based on new sensor information. Much focus has been placed on devel...
Sebastian Scherer, Dave Ferguson, Sanjiv Singh
ICPP
2009
IEEE
13 years 7 months ago
Employing Transactional Memory and Helper Threads to Speedup Dijkstra's Algorithm
In this paper we work on the parallelization of the inherently serial Dijkstra's algorithm on modern multicore platforms. Dijkstra's algorithm is a greedy algorithm that ...
Konstantinos Nikas, Nikos Anastopoulos, Georgios I...
ICPP
2009
IEEE
13 years 7 months ago
A Parallel Algorithm for Computing Betweenness Centrality
In this paper we present a multi-grained parallel algorithm for computing betweenness centrality, which is extensively used in large-scale network analysis. Our method is based on ...
Guangming Tan, Dengbiao Tu, Ninghui Sun
ICMLA
2009
13 years 7 months ago
Mahalanobis Distance Based Non-negative Sparse Representation for Face Recognition
Sparse representation for machine learning has been exploited in past years. Several sparse representation based classification algorithms have been developed for some application...
Yangfeng Ji, Tong Lin, Hongbin Zha
ICMCS
2009
IEEE
151views Multimedia» more  ICMCS 2009»
13 years 7 months ago
High accuracy and language independent document retrieval with a Fast Invariant Transform
This paper presents a tool and a novel Fast Invariant Transform (FIT) algorithm for language independent e-documents access. The tool enables a person to access an e-document thro...
Qiong Liu, Hironori Yano, Don Kimber, Chunyuan Lia...