Results 1 - 10 of 232

Self-determination and persistence in a real-life setting: Toward a motivational model of high school dropout.

by Robert J Vallerand , Michelle S Fbrtier , Frederic Guay - Journal of Personality and Social Psychology, , 1997
"... The purpose of this study was to propose and test a motivational model of high school dropout. The model posits that teachers, parents, and the school administration's behaviors toward students influence students' perceptions of competence and autonomy. The less autonomy supportive the so ..."
Abstract - Cited by 183 (19 self) - Add to MetaCart
section). Actual dropout behavior was assessed through a dichotomous variable that reflected enrollment status the following fall semester (0 = re-enrolled; 1 = dropped out). The variance-covariance matrix of the 22 observed variables was used as the database for the analysis. The variance

Whom You Know Matters: Venture Capital Networks and Investment Performance,

by Yael Hochberg , Alexander Ljungqvist , Yang Lu , Steve Drucker , Jan Eberly , Eric Green , Yaniv Grinstein , Josh Lerner , Laura Lindsey , Max Maksimovic , Roni Michaely , Maureen O'hara , Ludo Phalippou Mitch Petersen , Jesper Sorensen , Per Strömberg Morten Sorensen , Yael Hochberg , Johnson - Journal of Finance , 2007
"... Abstract Many financial markets are characterized by strong relationships and networks, rather than arm's-length, spot-market transactions. We examine the performance consequences of this organizational choice in the context of relationships established when VCs syndicate portfolio company inv ..."
Abstract - Cited by 138 (8 self) - Add to MetaCart
an overview of network analysis techniques and discusses their implementation in the VC context. A simple example illustrating network analysis is presented in the Appendix. Section II describes our data. In Section III, we analyze the effect of VC networking on fund performance. Section IV examines

Integral projection models for species with complex demography.

by Stephen P Ellner , Mark Rees - American Naturalist , 2006
"... abstract: Matrix projection models occupy a central role in population and conservation biology. Matrix models divide a population into discrete classes, even if the structuring trait exhibits continuous variation (e.g., body size). The integral projection model (IPM) avoids discrete classes and po ..."
Abstract - Cited by 42 (6 self) - Add to MetaCart
scripts illustrating our suggested methods. Keywords: structured populations, integral model, matrix model, sensitivity analysis, latent variability, thistle. * Corresponding author; e-mail: spe2@cornell.edu. † E-mail: m.rees@sheffield.ac.uk. Am. Nat. 2006. Vol. 167, pp. 410- Matrix projection models

DOI 10.1007/s00778-012-0302-x SPECIAL ISSUE PAPER Automating the database schema evolution process

by Carlo Curino, Hyun Jin, Moon Alin Deutsch, Carlo Zaniolo, C. Curino (b, H. J. Moon, A. Deutsch, C. Zaniolo
"... Abstract Supporting database schema evolution repre-sents a long-standing challenge of practical and theoretical importance for modern information systems. In this paper, we describe techniques and systems for automating the critical tasks of migrating the database and rewriting the legacy applicati ..."
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Abstract Supporting database schema evolution repre-sents a long-standing challenge of practical and theoretical importance for modern information systems. In this paper, we describe techniques and systems for automating the critical tasks of migrating the database and rewriting the legacy

Databases and Distributed Systems Group, TU Darmstadt, Germany,

by Kai Sachs, Samuel Kounev, Jean Bacon, Ro Buchmann
"... Message-oriented middleware (MOM) is at the core of a vast number of financial services and telco applications, and is gaining increasing traction in other industries, such as manufacturing, transportation, health-care and supply chain management. Novel messaging applications, however, pose some ser ..."
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representative of real-world applications. In addition to providing a standard workload and metrics for MOM performance, the benchmark provides a flexible performance analysis framework that allows users to tailor the workload to their requirements. The contributions of this paper are: i) we present a detailed

Improving Integration Quality for Heterogeneous Data Sources

by E. Altareva, Evgeniya Altareva, Referent Prof, Dr. Stefan Conrad, Korreferent Prof, Dr. Arndt Haeseler, Tag Der Mündlichen Prüfung, Evgeniya Altareva , 2004
"... This work considers a problem of integrating heterogeneous semi--structured data sources with the purpose of estimating integration quality (IQ). During the integration of such data sources the IQ estimation plays an important role, because correspondences and dependencies within and across the sour ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
the statistical method Latent Class Analysis (LCA), related to the Latent Variable Models. This method allows to analyze the influence of the latent factors on the set of data. As related to the task of integration, by a latent factor we understand belonging of an object to a real--world class and in its turn

Research Article Spatial Prediction of Landslide Hazard Using Fuzzy k-means and Dempster-Shafer Theory

by Pece V. Gorsevski, Piotr Jankowski, Paul E. Gessler
"... Landslide databases and input parameters used for modeling landslide hazard often contain imprecisions and uncertainties inherent in the decision-making process. Dealing with imprecision and uncertainty requires techniques that go beyond classical logic. In this paper, methods of fuzzy k-means class ..."
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Landslide databases and input parameters used for modeling landslide hazard often contain imprecisions and uncertainties inherent in the decision-making process. Dealing with imprecision and uncertainty requires techniques that go beyond classical logic. In this paper, methods of fuzzy k-means

Scenario Generation and Reduction for Long-term and Short-term Power System Generation Planning under Uncertainties

by Yonghan Feng, James D. Mccalley, William Q. Meeker, Jo Min, Lizhi Wang
"... ii ..."
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Recommended Citation

by A. Meel, L. M. O'neill, J. H. Levin, Warren D. Seider, U. Oktem , 2007
"... Operational risk assessment of chemical industries by exploiting accident databases ..."
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Operational risk assessment of chemical industries by exploiting accident databases

Genome-wide analysis of core cell cycle genes in Arabidopsis. Plant Cell 14: 903–916

by Klaas Vandepoele , Jeroen Raes , Lieven De Veylder , Pierre Rouzé , Stephane Rombauts , Dirk Inzé , 2002
"... Cyclin-dependent kinases and cyclins regulate with the help of different interacting proteins the progression through the eukaryotic cell cycle. A high-quality, homology-based annotation protocol was applied to determine the core cell cycle genes in the recently completed Arabidopsis genome sequenc ..."
Abstract - Cited by 45 (4 self) - Add to MetaCart
-length sequence comparisons or by means of multiple alignments, patterns, and domain searches. Of major concern is the origin of the assigned function, because the transfer of low-quality or faulty functional annotation information propagates incorrect annotations in the public databases. Even correct annotations
Results 1 - 10 of 232