Search
Now showing items 11-20 of 349
Semi-supervised learning for natural language
(Massachusetts Institute of Technology, 2005)
Statistical supervised learning techniques have been successful for many natural language processing tasks, but they require labeled datasets, which can be expensive to obtain. On the other hand, unlabeled data (raw text) ...
Indexical grounding for a mobile robot
(Massachusetts Institute of Technology, 2005)
We have outfitted a mobile research robot with several sensors and algorithms designed to facilitate small- and large-scale navigation and natural language interaction. We begin with a parser using a large, hand-crafted ...
An implementation of a 5.25 GHz transceiver for high data rate wireless applications
(Massachusetts Institute of Technology, 2005)
The desire for transmission of high data rate information across wireless channels has grown immensely over the past decade. Wireless devices available today including mobile phones, wireless local area networks (WLANs) ...
Provably good race detection that runs in parallel
(Massachusetts Institute of Technology, 2005)
A multithreaded parallel program that is intended to be deterministic may exhibit nondeterminism clue to bugs called determinacy races. A key capability of race detectors is to determine whether one thread executes logically ...
Heart rate variability in mice with coronary heart disease
(Massachusetts Institute of Technology, 2005)
Heart rate variability (HRV), the beat-to-beat fluctuation of the heart rate, is a non-invasive test that measures the autonomic regulation of the heart. Assessment of HRV has been shown to predict the risk of mortality ...
Stochastic modeling of biological sequence evolution
(Massachusetts Institute of Technology, 2005)
Markov models of sequence evolution are a fundamental building block for making inferences in biological research. This thesis reviews several major techniques developed to estimate parameters of Markov models of sequence ...
Dynamic sensor tasking in heterogeneous, mobile sensor networks
(Massachusetts Institute of Technology, 2005)
Modern sensor environments often attempt to combine several sensors into a single sensor network. The nodes of this network are generally heterogeneous and may vary with respect to sensor complexity, sensor operational ...
Manufacturing responsiveness as a competitive advantage and implementation in a make-to-order environment
(Massachusetts Institute of Technology, 2005)
Many companies have been successful differentiating themselves and creating growth opportunities by developing a competitive advantage through their manufacturing operations. During the last century, this operational ...
Parallel sorting and Star-P data movement and tree flattening
(Massachusetts Institute of Technology, 2005)
This thesis studies three problems in the field of parallel computing. The first result provides a deterministic parallel sorting algorithm that empirically shows an improvement over two sample sort algorithms. When using ...
Social defense mechanisms : tools for reclaiming our personal space
(Massachusetts Institute of Technology, 2005)
In contemporary Western society, electronic devices are becoming so prevalent that many people find themselves surrounded by technologies they find frustrating or annoying. The electronics industry has little incentive to ...