Obiekt

Tytuł: Analysis of correlation based dimension reduction methods

Autor:

Shin, Yong Joon ; Park, Cheong Hee

Data wydania:

2011

Typ zasobu:

artykuł

Współtwórca:

Korbicz, Józef - red. ; Uciński, Dariusz - red.

Tytuł publikacji grupowej:

AMCS, Volume 21 (2011)

Abstract:

Dimension reduction is an important topic in data mining and machine learning. Especially dimension reduction combined with feature fusion is an effective preprocessing step when the data are described by multiple feature sets. Canonical Correlation Analysis (CCA) and Discriminative Canonical Correlation Analysis (DCCA) are feature fusion methods based on correlation ; However, they are different in that DCCA is a supervised method utilizing class label information, while CCA is an unsupervised method. It has been shown that the classification performance of DCCA is superior to that of CCA due to the discriminative power using class label information. On the other hand, Linear Discriminant Analysis (LDA) is a supervised dimension reduction method and it is known as a special case of CCA. In this paper, we analyze the relationship between DCCA and LDA, showing that the projective directions by DCCA are equal to the ones obtained from LDA with respect to an orthogonal transformation. ; Using the relation with LDA, we propose a new method that can enhance the performance of DCCA. The experimental results show that the proposed method exhibits better classification performance than the original DCCA.

Wydawca:

Zielona Góra: Uniwersytet Zielonogórski

Identyfikator zasobu:

oai:zbc.uz.zgora.pl:46939

DOI:

10.2478/v10006-011-0043-9

Strony:

549-558

Źródło:

AMCS, Volume 21, Number 3 (2011) ; kliknij tutaj, żeby przejść

Jezyk:

eng

Prawa do dysponowania publikacją:

Biblioteka Uniwersytetu Zielonogórskiego

Obiekty

Podobne

Ta strona wykorzystuje pliki 'cookies'. Więcej informacji