Now showing items 1-10 of 802
DIVERSE: A Framework for Building Extensible and Reconfigurable Device-Independent Virtual Environments and Distributed Asynchronous Simulations
(MIT Press, 2003-02-01)
We present DIVERSE, a highly modular collection of complimentary software packages designed to facilitate the creation of device-independent virtual environments and distributed asynchronous simulations. DIVERSE is free/open ...
The simple virtual environment library: An extensible framework for building VE applications
(MIT Press, 2000-04-01)
As virtual environment (VE) technology becomes accessible to (and affordable for) an ever-widening audience of users, the demand for VE applications will increase. Tools that assist and facilitate the development of these ...
Domain-Specific Design of 3D Interaction Techniques: An Approach for Designing Useful Virtual Environment Applications
(MIT Press, 2009-10-01)
Few production virtual environment (VE) applications involve complex three-dimensional (3D) interaction. Our long-term collaboration with architects and engineers in designing 3D user interfaces (3D UIs) has revealed some ...
An Effective Deflected Subgradient Optimization Scheme for Implementing Column Generation for Large-Scale Airline Crew Scheduling Problems
We present a new deflected subgradient scheme for generating good quality dual solutions for linear programming (LP) problems and utilize this within the context of large-scale airline crew planning problems that arise ...
Gene Selection for Multiclass Prediction by Weighted Fisher Criterion
Gene expression profiling has been widely used to study molecular signatures of many diseases and to develop molecular diagnostics for disease prediction. Gene selection, as an important step for improved diagnostics, ...
Designing Attention-Centric Notification Systems: Five HCI Challenges
(Department of Computer Science, Virginia Polytechnic Institute & State University, 2005), TR-05-13
A Survey of Usability Evaluation in Virtual Environments: Classification and Comparison of Methods
(MIT Press, 2002-08-01)
Virtual environments (VEs) are a relatively new type of human?computer interface in which users perceive and act in a three-dimensional world. The designers of such systems cannot rely solely on design guidelines for ...
An Optimal Constrained Pruning Strategy for Decision Trees
This paper is concerned with the optimal constrained pruning of decision trees. We present a novel 0-1 programming model for pruning the tree to minimize some general penalty function based on the resulting leaf nodes, and ...
Enhanced model representations for an intra-ring synchronous optical network design problem allowing demand splitting
In this paper, we consider a network design problem arising in the context of deploying synchronous optical networks (SONET) using a unidirectional path switched ring architecture, a standard of transmission using optical ...
Enhancing Lagrangian dual optimization for linear programs by obviating nondifferentiability
We consider non differentiable optimization problems that arise when solving Lagrangian duals of large-scale linear programs. Different from traditional subgradient-based approaches, we design two new methods that attempt ...