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ARTICLE IN PRESS Computer-Aided Design ( ) –

by unknown authors , 2007
"... Curves on surfaces play an important role in computer-aided geometric design. Because of the considerably high degree of exact curves on surfaces, approximation algorithms are preferred in CAD systems. To approximate the exact curve with a reasonably low degree curve which also lies completely on th ..."
Abstract - Add to MetaCart
on the B-spline surface, an algorithm is presented in this paper. The Hausdorff distance between the approximate curve and the exact curve is controlled under the user-specified distance tolerance. The approximate curve is εT –G1 continuous, where εT is the user-specified angle tolerance. Examples

Energy Consumption in Mobile Phones: A Measurement Study and Implications for Network Applications

by Niranjan Balasubramanian, Aruna Balasubramanian, Arun Venkataramani , 2009
"... In this paper, we present a measurement study of the energy consumption characteristics of three widespread mobile networking technologies: 3G, GSM, and WiFi. We find that 3G and GSM incur a high tail energy overhead because of lingering in high power states after completing a transfer. Based on the ..."
Abstract - Cited by 221 (2 self) - Add to MetaCart
as to minimize the cumulative energy consumed while meeting user-specified deadlines. We show that the TailEnder scheduling algorithm is within a factor 2 × of the optimal and show that any online algorithm can at best be within a factor 1.62 × of the optimal. For applications like web search that can benefit

A Hierarchical Approach to Interactive Motion Editing for Human-like Figures

by Jehee Lee, Sung Yong Shin , 1999
"... This paper presents a technique for adapting existing motion of a human-like character to have the desired features that are specified by a set of constraints. This problem can be typically formulated as a spacetime constraint problem. Our approach combines a hierarchical curve fitting technique wit ..."
Abstract - Cited by 228 (16 self) - Add to MetaCart
to frames. We are able to adaptively add motion details to satisfy the constraints within a specified tolerance by adopting a multilevel B-spline representation which also provides a speedup for the interpolation. The performance of our system is further enhanced by the new inverse kinematics solver. We

Location Privacy in Mobile Systems: A Personalized Anonymization Model

by Bugra Gedik, Ling Liu - IN: ICDCS , 2005
"... This paper describes a personalized k-anonymity model for protecting location privacy against various privacy threats through location information sharing. Our model has two unique features. First, we provide a unified privacy personalization framework to support location k-anonymity for a wide rang ..."
Abstract - Cited by 192 (8 self) - Add to MetaCart
range of users with context-sensitive personalized privacy requirements. This framework enables each mobile node to specify the minimum level of anonymity it desires as well as the maximum temporal and spatial resolutions it is willing to tolerate when requesting for k-anonymity preserving location

Automatic reconstruction of B-spline surfaces of arbitrary topological type

by Matthias Eck - SIGGRAPH'96 , 1996
"... Creating freeform surfaces is a challenging task even with advanced geometric modeling systems. Laser range scanners offer a promising alternative for model acquisition—the 3D scanning of existing objects or clay maquettes. The problem of converting the dense point sets produced by laser scanners in ..."
Abstract - Cited by 173 (0 self) - Add to MetaCart
, we define the B-spline surface using a surface spline construction, and demonstrate that such an approach leads to an efficient procedure for fitting the surface while maintaining tangent plane continuity. We explore adaptive refinement of the patch network in order to satisfy user-specified error

Chameleon: A Software Infrastructure For Adaptive Fault Tolerance In Distributed Systems

by Saurabh Bagchi, Erik Haakenson, Keith Whisnant, Jun Wang, Xiao Yuxiao, Mahesh Kalyanakrishnan , 1998
"... The project has benefited through some demonstrations and presentations given to people from the computer industry, and the discussions they generated. Of them, mention must be made of Pankaj Mehra of Tandem Labs, Roger Lee, Robert Ferraro and Jagdish Patel of the Jet Propulsion Laboratory, Larry Ja ..."
Abstract - Cited by 103 (14 self) - Add to MetaCart
CHAMELEON OVERVIEW : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 14 3.1 Behavioral Overview : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 15 3.1.1 Initialization of the Chameleon Environment : : : : : : : : : : : : : : : : 15 3.1.2 Interpreting User-Specified Depen

Fault-tolerance in the Borealis distributed stream processing system

by Magdalena Balazinska, Hari Balakrishnan, Samuel R. Madden, Michael Stonebraker - In Proc. of the 2005 ACM SIGMOD International Conference on Management of Data , 2005
"... Over the past few years, Stream Processing Engines (SPEs) have emerged as a new class of software systems, enabling low latency processing of streams of data arriving at high rates. As SPEs mature and get used in monitoring applications that must continuously run (e.g., in network security monitorin ..."
Abstract - Cited by 97 (9 self) - Add to MetaCart
the replicas. In DPC, this choice is made explicit: the user specifies an availability bound (no result should be delayed by more than a specified delay threshold even under failure if the corresponding input is available), and DPC attempts to minimize the resulting inconsistency between replicas (not all

Tour into the picture: Using a spidery mesh interface to make animation from a single image

by Youichi Horry, Ken-ichi Anjyo, Kiyoshi Arai , 1997
"... A new method called TIP (Tour Into the Picture) is presented for easily making animations from one 2D picture or photograph of a scene. In TIP, animation is created from the viewpoint of a camera which can be three-dimensionally "walked or flownthrough" the 2D picture or photograph ..."
Abstract - Cited by 145 (2 self) - Add to MetaCart
or photograph. To make such animation, conventional computer vision techniques cannot be applied in the 3D modeling process for the scene, using only a single 2D image. Instead a spidery mesh is employed in our method to obtain a simple scene model from the 2D image of the scene using a graphical user interface

Fault Tolerant Design of Multimedia Servers

by Steven Berson, Leana Golubchik, Richard R. Muntz - In Proceedings of the ACM SIGMOD International Conference on Management of Data , 1995
"... Recent technological advances have made multimedia on-demand servers feasible. Two challenging tasks in such systems are: a) satisfying the real-time requirement for continuous delivery of objects at specified bandwidths and b) efficiently servicing multiple clients simultaneously. To accomplish the ..."
Abstract - Cited by 85 (6 self) - Add to MetaCart
Recent technological advances have made multimedia on-demand servers feasible. Two challenging tasks in such systems are: a) satisfying the real-time requirement for continuous delivery of objects at specified bandwidths and b) efficiently servicing multiple clients simultaneously. To accomplish

1 Damage Tolerance of Buckling Optimized Variable Angle

by Tow Panels, Richard Butler, Wenli Liu
"... Elastic stiffness tailoring of composite panels with curved fibers, or Variable Angle Tows (VATs), for maximum buckling performance is presented. The panels are modeled efficiently using the exact finite strip program, VICONOPT, and are optimized using a Genetic Algorithm. VAT panel designs are comp ..."
Abstract - Add to MetaCart
Elastic stiffness tailoring of composite panels with curved fibers, or Variable Angle Tows (VATs), for maximum buckling performance is presented. The panels are modeled efficiently using the exact finite strip program, VICONOPT, and are optimized using a Genetic Algorithm. VAT panel designs
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