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52,282
Toward reference models for requirements traceability
- IEEE Trans. Softw. Eng. 2001
"... Requirements traceability is intended to ensure continued alignment between stakeholder requirements and system evolution. To be useful, traces must be organized according to some modeling framework. Indeed, several such frameworks have been proposed, mostly based on theoretical considerations or an ..."
Abstract
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Cited by 272 (5 self)
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, reference models comprising the most important kinds of traceability links for various development tasks have been synthesized. The resulting models have been validated in case studies and are incorporated in a number of commercial traceability tools. The discussion of the link types and their usage
Loss aversion in riskless choice. A reference-dependent model
- QUARTERLY JOURNAL OF ECONOMICS
, 1991
"... ..."
Centering: A Framework for Modeling the Local Coherence Of Discourse
- Computational Linguistics
, 1995
"... This paper concerns relationships among focus of attention, choice of referring expression, and perceived coherence of utterances within a discourse segment. It presents a framework and initial theory of centering intended to model the local component of attentional state. The paper examines intera ..."
Abstract
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Cited by 812 (8 self)
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This paper concerns relationships among focus of attention, choice of referring expression, and perceived coherence of utterances within a discourse segment. It presents a framework and initial theory of centering intended to model the local component of attentional state. The paper examines
Proposed NIST Standard for Role-Based Access Control
, 2001
"... In this article we propose a standard for role-based access control (RBAC). Although RBAC models have received broad support as a generalized approach to access control, and are well recognized for their many advantages in performing large-scale authorization management, no single authoritative def ..."
Abstract
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Cited by 544 (13 self)
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on defining a fundamental and stable set of RBAC components. This standard is organized into the RBAC Reference Model and the RBAC System and Administrative Functional Specification. The reference model defines the scope of features that comprise the standard and provides a consistent vocabulary in support
Determining the Number of Factors in Approximate Factor Models
, 2000
"... In this paper we develop some statistical theory for factor models of large dimensions. The focus is the determination of the number of factors, which is an unresolved issue in the rapidly growing literature on multifactor models. We propose a panel Cp criterion and show that the number of factors c ..."
Abstract
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Cited by 561 (30 self)
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of the number of factors for configurations of the panel data encountered in practice. The idea that variations in a large number of economic variables can be modelled bya small number of reference variables is appealing and is used in manyeconomic analysis. In the finance literature, the arbitrage pricing
Nonmonotonic Reasoning, Preferential Models and Cumulative Logics
, 1990
"... Many systems that exhibit nonmonotonic behavior have been described and studied already in the literature. The general notion of nonmonotonic reasoning, though, has almost always been described only negatively, by the property it does not enjoy, i.e. monotonicity. We study here general patterns of ..."
Abstract
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Cited by 626 (14 self)
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of nonmonotonic reasoning and try to isolate properties that could help us map the field of nonmonotonic reasoning by reference to positive properties. We concentrate on a number of families of nonmonotonic consequence relations, defined in the style of Gentzen [13]. Both proof-theoretic and semantic points
A new mathematical model for relative quantification in real-time RT-PCR. Nucleic Acids Res
"... Use of the real-time polymerase chain reaction (PCR) to amplify cDNA products reverse transcribed from mRNA is on the way to becoming a routine tool in molecular biology to study low abundance gene expression. Real-time PCR is easy to perform, provides the necessary accuracy and produces reliable as ..."
Abstract
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Cited by 1088 (4 self)
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in comparison to a reference gene transcript. Therefore, a new mathematical model is presented. The relative expression ratio is calculated only from the real-time PCR efficiencies and the crossing point deviation of an unknown sample versus a control. This model needs no calibration curve. Control levels were
Reference Model
"... Critical Success FactorsThe FEA inter-related reference models are designed to facilitate crossagency analysis of investments and business functions, while identifying opportunities for collaboration and cost efficiencies ..."
Abstract
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Critical Success FactorsThe FEA inter-related reference models are designed to facilitate crossagency analysis of investments and business functions, while identifying opportunities for collaboration and cost efficiencies
A Configurable Reference Modelling Language
, 2005
"... Enterprise Systems (ES) are comprehensive off-the-shelf packages that have to be configured to suit the requirements of an organization. Most ES solutions provide reference models that describe the functionality and structure of the system. However, these models do not capture the potential configur ..."
Abstract
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Cited by 133 (18 self)
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Enterprise Systems (ES) are comprehensive off-the-shelf packages that have to be configured to suit the requirements of an organization. Most ES solutions provide reference models that describe the functionality and structure of the system. However, these models do not capture the potential
Hierarchical Dirichlet processes.
- Journal of the American Statistical Association,
, 2006
"... We consider problems involving groups of data where each observation within a group is a draw from a mixture model and where it is desirable to share mixture components between groups. We assume that the number of mixture components is unknown a priori and is to be inferred from the data. In this s ..."
Abstract
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Cited by 942 (78 self)
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We consider problems involving groups of data where each observation within a group is a draw from a mixture model and where it is desirable to share mixture components between groups. We assume that the number of mixture components is unknown a priori and is to be inferred from the data
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