Browsing by Author "Witten, Ian H."
Co-authors for Ian H. Witten
Supervised by Ian H. Witten
Showing up to 5 theses - most recently added to Research Commons first.
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Compression and cryptology
(The University of Waikato, 1997)Currently data compression and encryption are carried out as two separate activities. A simpler communication system would result if these two activities could be combined. The security properties of lossless data compression ... -
Lossless document image compression
(The University of Waikato, 1999)Document image compression reduces the storage requirements for digitised books or documents by using characters as the fundamental unit of compression. Compression gains can be achieved by identifying regions that contain ... -
A new approach to fitting linear models in high dimensional spaces
(The University of Waikato, 2000)This thesis presents a new approach to fitting linear models, called “pace regression”, which also overcomes the dimensionality determination problem. Its optimality in minimizing the expected prediction loss is theoretically ... -
N-gram models of agreement in language
(The University of Waikato, 2000)Conventional n-gram language models are well-established as powerful yet simple mechanisms for characterising language structure when low data complexity is the primary objective. Much of their predictive power can be ... -
Pruning decision trees and lists
(The University of Waikato, 2000)Machine learning algorithms are techniques that automatically build models describing the structure at the heart of a set of data. Ideally, such models can be used to predict properties of future data points and people can ...