7 search results - page 1 / 2 » Do unbalanced data have a negative effect on LDA |
PR
2008
13 years 4 months ago
2008
For two-class discrimination, Ref. [1] claimed that, when covariance matrices of the two classes were unequal, a (class) unbalanced dataset had a negative effect on the performanc...
PR
2007
13 years 4 months ago
2007
This paper demonstrates that the imbalanced data sets have a negative effect on the performance of LDA theoretically. This theoretical analysis is confirmed by the experimental r...
EMNLP
2010
13 years 2 months ago
2010
Discovering and summarizing opinions from online reviews is an important and challenging task. A commonly-adopted framework generates structured review summaries with aspects and ...
DAGSTUHL
1996
13 years 6 months ago
1996
A partial evaluator, given a program and a known "static" part of its input data, outputs a specialised or residual program in which computations depending only on the st...
KDD
2001
ACM
14 years 5 months ago
2001
ACM
This paper is concerned with the construction of regression and classification trees that are more adapted to data mining applications than conventional trees. To this end, we pro...