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@Inbook{Bengio2006, | |
author="Bengio, Yoshua | |
and Delalleau, Olivier | |
and Le Roux, Nicolas | |
and Paiement, Jean-Fran{\c{c}}ois | |
and Vincent, Pascal | |
and Ouimet, Marie", | |
editor="Guyon, Isabelle | |
and Nikravesh, Masoud | |
and Gunn, Steve | |
and Zadeh, Lotfi A.", | |
title="Spectral Dimensionality Reduction", | |
bookTitle="Feature Extraction: Foundations and Applications", | |
year="2006", | |
publisher="Springer Berlin Heidelberg", | |
address="Berlin, Heidelberg", | |
pages="519--550", | |
abstract="In this chapter, we study and put under a common framework a number of non-linear dimensionality reduction methods, such as Locally Linear Embedding, Isomap, Laplacian eigenmaps and kernel PCA, which are based on performing an eigen-decomposition (hence the name ``spectral''). That framework also includes classical methods such as PCA and metric multidimensional scaling (MDS). It also includes the data transformation step used in spectral clustering. We show that in all of these cases the learning algorithm estimates the principal eigenfunctions of an operator that depends on the unknown data density and on a kernel that is not necessarily positive semi-definite. This helps generalizing some of these algorithms so as to predict an embedding for out-of-sample examples without having to retrain the model. It also makes it more transparent what these algorithm are minimizing on the empirical data and gives a corresponding notion of generalization error.", | |
isbn="978-3-540-35488-8", | |
doi="10.1007/978-3-540-35488-8_28", | |
url="https://doi.org/10.1007/978-3-540-35488-8_28" | |
} | |
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