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» Dense Families and Key Functions of Database Relation Instan...
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BMCBI
2007
116views more  BMCBI 2007»
13 years 7 months ago
Linear array of conserved sequence motifs to discriminate protein subfamilies: study on pyridine nucleotide-disulfide reductases
Background: The pyridine nucleotide disulfide reductase (PNDR) is a large and heterogeneous protein family divided into two classes (I and II), which reflect the divergent evoluti...
César L. Avila, Viviana A. Rapisarda, Ricar...
BMCBI
2007
120views more  BMCBI 2007»
13 years 7 months ago
Quantitative sequence-function relationships in proteins based on gene ontology
Background: The relationship between divergence of amino-acid sequence and divergence of function among homologous proteins is complex. The assumption that homologs share function...
Vineet Sangar, Daniel J. Blankenberg, Naomi Altman...
RECOMB
2006
Springer
14 years 7 months ago
Assessing Significance of Connectivity and Conservation in Protein Interaction Networks
Computational and comparative analysis of protein-protein interaction (PPI) networks enable understanding of the modular organization of the cell through identification of functio...
Mehmet Koyutürk, Ananth Grama, Wojciech Szpan...
CORR
2002
Springer
135views Education» more  CORR 2002»
13 years 7 months ago
Minimal-Change Integrity Maintenance Using Tuple Deletions
We address the problem of minimal-change integrity maintenance in the context of integrity constraints in relational databases. We assume that integrity-restoration actions are li...
Jan Chomicki, Jerzy Marcinkowski
IS
2007
13 years 7 months ago
Semantic optimization techniques for preference queries
Preference queries are relational algebra or SQL queries that contain occurrences of the winnow operator (find the most preferred tuples in a given relation). Such queries are pa...
Jan Chomicki