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CLA
2007
13 years 5 months ago
Formal Concepts as Optimal Factors in Boolean Factor Analysis: Implications and Experiments
Boolean factor analysis aims at decomposing an objects × attributes Boolean matrix I into a Boolean product of an objects × factors Boolean matrix A and a factors × attributes B...
Radim Belohlávek, Vilém Vychodil
DATESO
2004
116views Database» more  DATESO 2004»
13 years 5 months ago
Using Blind Search and Formal Concepts for Binary Factor Analysis
Binary Factor Analysis (BFA, also known as Boolean Factor Analysis) may help with understanding collections of binary data. Since we can take collections of text documents as binar...
Ales Keprt
CLA
2004
13 years 5 months ago
Binary Factor Analysis with Help of Formal Concepts
Binary factor analysis (BFA, also known as Boolean Factor Analysis) is a nonhierarchical analysis of binary data, based on reduction of binary space dimension. It allows us to find...
Ales Keprt, Václav Snásel
ICFCA
2009
Springer
13 years 10 months ago
Factor Analysis of Incidence Data via Novel Decomposition of Matrices
Matrix decomposition methods provide representations of an object-variable data matrix by a product of two different matrices, one describing relationship between objects and hidd...
Radim Belohlávek, Vilém Vychodil
GRC
2010
IEEE
13 years 4 months ago
Optimal Factorization of Three-Way Binary Data
We present a problem of factor analysis of three-way binary data, i.e. data described by a 3-dimensional binary matrix I, describing a relationship between objects, attributes, an...
Radim Belohlávek, Vilém Vychodil