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Physical Sciences and Mathematics Commons

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Theses/Dissertations

William & Mary

Computer Sciences

2005

Articles 1 - 6 of 6

Full-Text Articles in Physical Sciences and Mathematics

An Investigation Of Programmer-Identified Concerns, Meghan Kathleen Revelle Jan 2005

An Investigation Of Programmer-Identified Concerns, Meghan Kathleen Revelle

Dissertations, Theses, and Masters Projects

No abstract provided.


Factory: A N Object-Oriented Parallel Programming Substrate For Deep Multiprocessors, Scott Arthur Schneider Jan 2005

Factory: A N Object-Oriented Parallel Programming Substrate For Deep Multiprocessors, Scott Arthur Schneider

Dissertations, Theses, and Masters Projects

No abstract provided.


Sonar Sensor Interpretation For Ectogeneous Robots, Wen Gao Jan 2005

Sonar Sensor Interpretation For Ectogeneous Robots, Wen Gao

Dissertations, Theses, and Masters Projects

We have developed four generations of sonar scanning systems to automatically interpret surrounding environment. The first two are stationary 3D air-coupled ultrasound scanning systems and the last two are packaged as sensor heads for mobile robots. Template matching analysis is applied to distinguish simple indoor objects. It is conducted by comparing the tested echo with the reference echoes. Important features are then extracted and drawn in the phase plane. The computer then analyzes them and gives the best choices of the tested echoes automatically. For cylindrical objects outside, an algorithm has been presented to distinguish trees from smooth circular poles …


Data Broadcast Scheduling: Models, Algorithms, And Analysis, Aaron Thomas Hawkins Jan 2005

Data Broadcast Scheduling: Models, Algorithms, And Analysis, Aaron Thomas Hawkins

Dissertations, Theses, and Masters Projects

Inherent in the field of data broadcasting is a communication problem in which a server is to transmit a subset of data items in response to requests received from clients. The intent of the server is to optimize metrics quantifying the quality of service the system provides. This method of data dissemination has proved to be an efficient means of delivering information in asymmetric environments demanding massive scalability. of critical importance in such a system is the algorithm used by the server to construct a schedule of item broadcasts.;Due to the real-time nature of this problem, performances of heuristics designed …


Techniques Of Data Prefetching, Replication, And Consistency In The Internet, Xin Chen Jan 2005

Techniques Of Data Prefetching, Replication, And Consistency In The Internet, Xin Chen

Dissertations, Theses, and Masters Projects

Internet has become a major infrastructure for information sharing in our daily life, and indispensable to critical and large applications in industry, government, business, and education. Internet bandwidth (or the network speed to transfer data) has been dramatically increased, however, the latency time (or the delay to physically access data) has been reduced in a much slower pace. The rich bandwidth and lagging latency can be effectively coped with in Internet systems by three data management techniques: caching, replication, and prefetching. The focus of this dissertation is to address the latency problem in Internet by utilizing the rich bandwidth and …


Markov Chain Modeling For Multi-Server Clusters, Zhili Hua Jan 2005

Markov Chain Modeling For Multi-Server Clusters, Zhili Hua

Dissertations, Theses, and Masters Projects

No abstract provided.