BioMed Central Open Access (2008)
Gul S Dalgin, Gabriela Alexe, Daniel Scanfeld, Pablo Tamayo, Jill P Mesirov, Shridar Ganesan, ...
This is an Open Access article distributed under the terms of the Creative Commons Attribution License
doi:10.1093/bioinformatics/btl262 (2008)
Ravi Vijaya Satya, Amar Mukherjee, Gabriela Alexe, Laxmi Parida, Gyan Bhanot
homoplasy events
Gabriela Alexe, Gul S. Dalgin, Daniel Scanfeld, Pablo Tamayo, Jill Mesirov, Charles Delisi, ...
expression of lymphocyte-associated genes in node negative HER2+ breast
Portraits of breast cancer progression (2007)
Dalgin, Gul S, Alexe, Gabriela, Scanfeld, Daniel, Tamayo, Pablo, Mesirov, Jill P, Ganesan, Shridar, ...
Abstract Background Clustering analysis of microarray data is often criticized for giving ambiguous results because of sensitivity to data perturbation or clustering techniques used. In this paper,...
Breast cancer prognosis by combinatorial analysis of gene expression data (2006)
Alexe, Gabriela, Alexe, Sorin, Axelrod, David E, Bonates, Tibérius O, Lozina, Irina I, Reiss, Michael, ...
Abstract Introduction The potential of applying data analysis tools to microarray data for diagnosis and prognosis is illustrated on the recent breast cancer dataset of van 't Veer and coworkers. We...
Spanned Patterns for the Logical Analysis of Data (2006)
Gabriela Alexe, Gabriela Alexe, Peter L. Hammer, Peter L. Hammer
Abstract. In a finite dataset consisting of positive and negative observations represented as real valued n-vectors, a positive (negative) pattern is an interval in R n with the property that it...
Constructing Near-Perfect Phylogenies with multiple homoplasy events (2006)
Satya, Ravi Vijaya, Mukherjee, Amar, Alexe, Gabriela, Parida, Laxmi, Bhanot, Gyan
Motivation: We explore the problem of constructing near-perfect phylogenies on bi-allelic haplotypes, where the deviation from perfect phylogeny is entirely due to homoplasy events. We present...
Consensus algorithms for the generation of all maximal bicliques (2004)
Alexe, Gabriela, Alexe, Sorin, Crama, Yves, Foldes, Stephan, Hammer, Peter L., Simeone, Bruno
We describe a new algorithm for generating all maximal bicliques (i.e. complete bipartite. not necessarily induced subgraphs) of a graph. The algorithm is inspired by, and is quite similar to. the...
"Graduate Program in Operations Research."
Gabriela Alexe, Gabriela Alexe, Peter L. Hammer, Peter L. Hammer, Vadim V. Lozin, Dominique Werra
Abstract. The struction method is a general approach to compute the stability number of a graph based on step-by-step transformations each of which reduces the stability number by exactly one. This...
PATTERN-BASED FEATURE SELECTION IN GENOMICS AND PROTEOMICS (2003)
Gabriela Alexe, Sorin Alexe, Peter L. Hammer, Gabriela Alexe, Sorin Alexe, Peter L. Hammer, ...
Abstract. A major difficulty in data analysis is due to the size of the datasets, which contain frequently large numbers of irrelevant or redundant variables. In particular, in some of the most...
Pattern-based clustering and attribute analysis (2003)
Gabriela Alexe, Gabriela Alexe, Sorin Alexe, Sorin Alexe, Peter L. Hammer, Peter L. Hammer
Abstract. The Logical Analysis of Data (LAD) is a combinatorics, optimization and logic based methodology for the analysis of datasets with binary or numerical input variables, and binary outcomes....
Comprehensive vs. Comprehensible Classifiers in Logical Analysis of Data (2002)
Gabriela Alexe, Sorin Alexe, Peter L. Hammer, Er Kogan
(Grant N00014-92-J-1375) and from DIMACS. 2 Permanent member
CONSENSUS ALGORITHMS FOR THE GENERATION OF ALL MAXIMAL BICLIQUES (2002)
Stephan Foldes, Peter L. Hammer, Bruno Simeone, Gabriela Alexe, Sorin Alexe, Yves Crama, ...
Abstract. We describe a new algorithm for generating all maximal bicliques (i.e. complete bipartite, not necessarily induced subgraphs) of a graph. The algorithm is inspired by, and is quite similar...
Peter L. Hammer, Doyle Knight, Joachim Kohn, Sascha Abramson, Gabriela Alexe, Peter L. Hammer, ...
Abstract. Although the exploration of predictive correlations between the physio-mechanical properties of biomaterials and cellular response is of critical importance to the design of clinically...
CLASSIFIERS IN LOGICAL ANALYSIS OF DATA (2002)
Gabriela Alexe A, Sorin Alexe A, Alexander Kogan A, Gabriela Alexe, Sorin Alexe, ...
Abstract. The main objective of this paper is to compare the classification accuracy provided large, comprehensive collections of patterns (rules) derived from archives of past observations, with...
THE GENERATION OF ALL MAXIMAL BICLIQUES (2000)
Gabriela Alexe A, Sorin Alexe B, Stephan Foldes, Peter L. Hammer, Bruno Simeone E, Gabriela Alexe, ...
Abstract. We describe a consensus-type algorithm for determining all the maximal complete bipartite (not necessarily induced) subgraphs of a graph. We show that by imposing a particular order in...
Breast cancer prognosis by combinatorial analysis of gene expression data
Alexe, Gabriela, Alexe, Sorin, Axelrod, David E, Bonates, Tibérius O, Lozina, Irina I, Reiss, Michael, ...
Portraits of breast cancer progression
Dalgin, Gul S, Alexe, Gabriela, Scanfeld, Daniel, Tamayo, Pablo, Mesirov, Jill P, Ganesan, Shridar, ...
Mitochondrial DNA Haplogroup D4a Is a Marker for Extreme Longevity in Japan
Bilal, Erhan, Rabadan, Raul, Alexe, Gabriela, Fuku, Noriyuki, Ueno, Hitomi, Nishigaki, Yutaka, ...
We report results from the analysis of complete mitochondrial DNA (mtDNA) sequences from 112 Japanese semi-supercentenarians (aged above 105 years) combined with previously published data from 96...