Advances in Online Shopping Interfaces - RePub - Erasmus ...
Advances in Online Shopping Interfaces - RePub - Erasmus ...
Advances in Online Shopping Interfaces - RePub - Erasmus ...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
CONTENTS ix<br />
5.5 Experiments & Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98<br />
5.5.1 Experiment Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98<br />
5.5.2 Experiment Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100<br />
5.5.3 Cold Start Item Problem . . . . . . . . . . . . . . . . . . . . . . . . . . 102<br />
5.5.4 Model Interpretation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103<br />
5.6 Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106<br />
III Visualization of Large Data Sets 109<br />
6 Multidimensional Scal<strong>in</strong>g for Large Data Sets 111<br />
6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111<br />
6.2 MDS by Iterative Majorization . . . . . . . . . . . . . . . . . . . . . . . . . . . 113<br />
6.3 Sparse Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115<br />
6.3.1 Structured Data Design . . . . . . . . . . . . . . . . . . . . . . . . . . . 117<br />
6.3.2 Unconnected Subsets . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117<br />
6.4 Large Scale MDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119<br />
6.5 Choos<strong>in</strong>g Dissimilarity Measures and Weights <strong>in</strong> Large Scale MDS . . . . . . . 121<br />
6.6 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125<br />
6.6.1 Swiss Roll Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125<br />
6.6.2 Thesaurus Data Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126<br />
6.7 Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128<br />
7 Discussion 133<br />
7.1 Summary and Discussion of the Ma<strong>in</strong> F<strong>in</strong>d<strong>in</strong>gs . . . . . . . . . . . . . . . . . . 133<br />
7.2 Directions for Future Research . . . . . . . . . . . . . . . . . . . . . . . . . . . 135<br />
Nederlandse Samenvatt<strong>in</strong>g (Summary <strong>in</strong> Dutch) 139<br />
Bibliography 143<br />
Author Index 155<br />
Curriculum Vitae 161