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GIS
2005
ACM
15 years 10 months ago
Adaptive nearest neighbor queries in travel time networks
Nearest neighbor (NN) searches represent an important class of queries in geographic information systems (GIS). Most nearest neighbor algorithms rely on static distance informatio...
Wei-Shinn Ku, Roger Zimmermann, Haojun Wang, Chi-N...
GIS
2006
ACM
15 years 10 months ago
Optimization of multiple continuous queries over streaming satellite data
Remotely sensed data, in particular satellite imagery, play many important roles in environmental applications and models. In particular applications that study (rapid) changes in...
Quinn Hart, Michael Gertz
GIS
2006
ACM
15 years 10 months ago
Exploiting a page-level upper bound for multi-type nearest neighbor queries
Given a query point and a collection of spatial features, a multi-type nearest neighbor (MTNN) query finds the shortest tour for the query point such that only one instance of eac...
Xiaobin Ma, Shashi Shekhar, Hui Xiong, Pusheng Zha...
DAC
2009
ACM
15 years 10 months ago
Handling complexities in modern large-scale mixed-size placement
In this paper, we propose an effective algorithm flow to handle largescale mixed-size placement. The basic idea is to use floorplanning to guide the placement of objects at the gl...
Jackey Z. Yan, Natarajan Viswanathan, Chris Chu
DAC
2009
ACM
15 years 10 months ago
Improving STT MRAM storage density through smaller-than-worst-case transistor sizing
This paper presents a technique to improve the storage density of spin-torque transfer (STT) magnetoresistive random access memory (MRAM) in the presence of significant magnetic t...
Wei Xu, Yiran Chen, Xiaobin Wang, Tong Zhang