Results 1 - 10 of 21,498

Multiple sequence alignment with the Clustal series of programs

by Ramu Chenna, Hideaki Sugawara, Tadashi Koike, Rodrigo Lopez, Toby J. Gibson, Desmond G. Higgins, Julie D. Thompson - Nucleic Acids Res , 2003
"... The Clustal series of programs are widely used in molecular biology for the multiple alignment of both nucleic acid and protein sequences and for preparing phylogenetic trees. The popularity of the programs depends on a number of factors, including not only the accuracy of the results, but also the ..."
Abstract - Cited by 747 (5 self) - Add to MetaCart
the robustness, portability and user-friendliness of the programs. New features include NEXUS and FASTA format output, printing range numbers and faster tree calculation. Although, Clustal was originally developed to run on a local computer, numerous Web servers have been set up, notably at the EBI

Loopy belief propagation for approximate inference: An empirical study. In:

by Kevin P Murphy , Yair Weiss , Michael I Jordan - Proceedings of Uncertainty in AI, , 1999
"... Abstract Recently, researchers have demonstrated that "loopy belief propagation" -the use of Pearl's polytree algorithm in a Bayesian network with loops -can perform well in the context of error-correcting codes. The most dramatic instance of this is the near Shannon-limit performanc ..."
Abstract - Cited by 676 (15 self) - Add to MetaCart
;belief revision") version, Weiss For the case of networks with multiple loops, Richard son To summarize, what is currently known about loopy propagation is that ( 1) it works very well in an error correcting code setting and (2) there are conditions for a single-loop network for which it can be guaranteed

Cooperative mobile robotics: Antecedents and directions

by Y. Uny Cao, Alex S. Fukunaga, Andrew B. Kahng, Frank Meng , 1995
"... There has been increased research interest in systems composed of multiple autonomous mobile robots exhibiting collective behavior. Groups of mobile robots are constructed, with an aim to studying such issues as group architecture, resource conflict, origin of cooperation, learning, and geometric pr ..."
Abstract - Cited by 385 (3 self) - Add to MetaCart
There has been increased research interest in systems composed of multiple autonomous mobile robots exhibiting collective behavior. Groups of mobile robots are constructed, with an aim to studying such issues as group architecture, resource conflict, origin of cooperation, learning, and geometric

Citeseer: an automatic citation indexing system

by C. Lee Giles, Kurt D. Bollacker, Steve Lawrence - INTERNATIONAL CONFERENCE ON DIGITAL LIBRARIES , 1998
"... We present CiteSeer: an autonomous citation indexing system which indexes academic literature in electronic format (e.g. Postscript files on the Web). CiteSeer understands how to parse citations, identify citations to the same paper in different formats, and identify the context of citations in the ..."
Abstract - Cited by 292 (46 self) - Add to MetaCart
We present CiteSeer: an autonomous citation indexing system which indexes academic literature in electronic format (e.g. Postscript files on the Web). CiteSeer understands how to parse citations, identify citations to the same paper in different formats, and identify the context of citations

Do Formal Contracts and Relational Governance Function as Substitutes or Complements

by Laura Poppo, Todd Zenger - Strategic Management Journal , 2002
"... Relational exchange arrangements supported by trust are commonly viewed as substitutes for complex contracts in interorganizational exchanges. Many argue that formal contracts actually undermine trust and thereby encourage the opportunistic behavior they are designed to discourage. In this paper, we ..."
Abstract - Cited by 264 (5 self) - Add to MetaCart
customized contracts with high levels of relational governance (and vice versa). Moreover, this interdependence underlies their ability to generate improvements in exchange performance. Our results concerning the determinants of these governance choices show their distinct origins, which further augments

Induction of mutant dynamin specifically blocks endocytic coated vesicle formation

by Hanna Damke, Takeshi Baba, Dale E. Warnock, Ra L. Schmid - J. Cell , 1994
"... Abstract. Dynarnin is the mammalian homologue to the Drosophila shibire gene product. Mutations in this 100-kD GTPase cause a pleiotropic defect in endocytosis. To further investigate its role, we generated stable HeLa cell lines expressing either wild-type dynamin or a mutant defective in GTP bindi ..."
Abstract - Cited by 242 (6 self) - Add to MetaCart
in vitro (reviewed by Collins, 1991; Vallee, 1992). Originally isolated as a nucleotide-dependent microtubule-bundling

On the Origins of Power Laws in Internet Topologies

by Alberto Medina, Ibrahim Matta, John Byers - 39th Annual Allerton Conference on Communication, Control, and Computing, 2001 www.merit.edu/~mrt
"... Recent empirical studies [6] have shown that Internet topologies exhibit power laws of the form � for the following relationships: (P1) outdegree of node (domain or router) versus rank; (P2) number of nodes versus outdegree; (P3) number of node pairs within a neighborhood versus neighborhood size (i ..."
Abstract - Cited by 220 (4 self) - Add to MetaCart
(in hops); and (P4) eigenvalues of the adjacency matrix versus rank. However, causes for the appearance of such power laws have not been convincingly given. In this paper, we examine four factors in the formation of Internet topologies. These factors are (F1) preferential connectivity of a new node

The Evolution of Protégé: An Environment for Knowledge-Based Systems Development

by John H. Gennari, Mark A. Musen, Ray W. Fergerson, William E. Grosso, Monica Crubzy, Henrik Eriksson, Natalya F. Noy, Samson W. Tu - International Journal of Human-Computer Studies , 2002
"... The Protg project has come a long way since Mark Musen first built the Protg metatool for knowledge-based systems in 1987. The original tool was a small application, aimed at building knowledge-acquisition tools for a few specialized programs in medical planning. From this initial tool, the Protg s ..."
Abstract - Cited by 241 (11 self) - Add to MetaCart
The Protg project has come a long way since Mark Musen first built the Protg metatool for knowledge-based systems in 1987. The original tool was a small application, aimed at building knowledge-acquisition tools for a few specialized programs in medical planning. From this initial tool, the Protg

Global and regional climate changes due to black carbon,

by V Ramanathan , G Carmichael - Nat. Geosci., , 2008
"... Figure 1: Global distribution of BC sources and radiative forcing. a, BC emission strength in tons per year from a study by Bond et al. Full size image (42 KB) Review Nature Geoscience 1, 221 -227 (2008 Black carbon in soot is the dominant absorber of visible solar radiation in the atmosphere. Ant ..."
Abstract - Cited by 228 (5 self) - Add to MetaCart
presumably ignored in the original definition of BC 3 . Dust, which also absorbs solar radiation, is not included in the definition of BC. Globally, the annual emissions of BC are (for the year 1996) 8 Tg yr -1 (ref. 4), with about 20% from biofuels, 40% from fossil fuels and 40% from open biomass burning

The Synthetic Modeling of Language Origins

by Luc Steels, John Benjamins , 1997
"... The paper surveys work on the computational modeling of the origins and evolution of language. The main approaches are clarified and some example experiments from the domains of the evolution of communication, phonetics, lexicon formation, and syntax are discussed. 1 Introduction The paper surveys ..."
Abstract - Cited by 167 (21 self) - Add to MetaCart
The paper surveys work on the computational modeling of the origins and evolution of language. The main approaches are clarified and some example experiments from the domains of the evolution of communication, phonetics, lexicon formation, and syntax are discussed. 1 Introduction The paper surveys
Results 1 - 10 of 21,498