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Mokbel, Bassam: Dissimilarity-based learning for complex data. 2016
Inhalt
Introduction
Motivation
Data and representation
Workflow pipeline for machine learning applications
Challenges of complex data
Feature-based representation
Dissimilarity-based representation
Other types of data representation
Thesis overview
Scientific contributions
Structural overview
Publications and funding in the context of this thesis
Tools for supervised and unsupervised learning with dissimilarity data
Motivation
Scientific contributions and structure of the chapter
Relational learning vector quantization
Introduction
Generalized learning vector quantization
Pseudo-Euclidean embedding of dissimilarity data
GLVQ for dissimilarity data
Reducing computational demand via Nyström approximation
Interpretability of relational prototypes
Experiments
Concluding remarks
Relational generative topographic mapping
Introduction
Generative topographic mapping (GTM)
Relational GTM
Experiments
Concluding remarks
Adaptive metrics for complex data
Motivation
Scientific contributions and structure of the chapter
Vector-based metric learning in LVQ
Motion tracking data
Proof-of-concept example
Sequence alignment as a parameterized dissimilarity measure
Learning scoring parameters from labeled data
Practical implementation
Algorithm overview
Meta-parameters
Proof-of-concept with artificial data
RGLVQ error function surface
Influence of crispness on the alignment
Experiments with real-world data
Experimental procedure
Copenhagen Chromosomes
Intelligent tutoring systems for Java programming
Reducing computational demand
Discussion
Unsupervised suitability assessment for data representations
Motivation
Scientific contributions and structure of the chapter
Low-dimensional Euclidean embeddings
Quantitative quality assessment
Principles of quality assessment for DR
Evaluating DR based on the co-ranking matrix
Point-wise quality measure
Parameterization of the quality measure
Experiments with real-world data
Discussion
Comparing dissimilarity-based representations
Introduction
How to compare dissimilarity measures?
Comparison of metrics for the Euclidean vector space
Comparison of non-Euclidean settings
Discussion
Conclusion
Additional information
Derivative of soft alignment
Information about the Chromosomes data set
Information about the Sorting data set
Publications in the context of this thesis
Bibliography