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35,437
Simple Consequence Relations
 Information and Computation
, 1991
"... We provide a general investigation of Logic in which the notion of a simple consequence relation is taken to be fundamental. Our notion is more general than the usual one since we give up monotonicity and use multisets rather than sets. We use our notion for characterizing several known logics (incl ..."
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Cited by 107 (19 self)
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We provide a general investigation of Logic in which the notion of a simple consequence relation is taken to be fundamental. Our notion is more general than the usual one since we give up monotonicity and use multisets rather than sets. We use our notion for characterizing several known logics
The sources and consequences of embeddedness for the economic performance of organizations: The network effect
 American Sociological Review
, 1996
"... In this paper, I attempt to advance the concept of embeddedness beyond the level of a programmatic statement by developing a formulation that specifies how embeddedness and network structure affect economic action. On the basis of existing theory and original ethnographies of 23 apparel firms, I dev ..."
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Cited by 744 (8 self)
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economy. Results reveal that embeddedness is an exchange system with unique opportunities relative to markets and that firms organized in networks have higher survival chances than do firms which maintain arm'slength market relationships. The positive effect of embeddedness reaches a threshold
Abductive Consequence Relations
 Artif. Intell
, 1997
"... Abstract In this paper we present a systematic study of abductive consequence relations. We show that a monotone abductive consequence relation satis es the properties of a cumulative monotonic system as de ned by Kraus, Lehmann and Magidor when the disjunction of all abductive explanations is the ..."
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Cited by 15 (1 self)
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Abstract In this paper we present a systematic study of abductive consequence relations. We show that a monotone abductive consequence relation satis es the properties of a cumulative monotonic system as de ned by Kraus, Lehmann and Magidor when the disjunction of all abductive explanations
On representation theorems for nonmonotonic consequence relations
"... On represent at ion theorems for nonmonotonic consequence relations ..."
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 ..."
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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 prooftheoretic and semantic points
ReducingModal Consequence Relations
 Journal of Logic and Computation
"... In this paper we will investigate the possibility of reducing derivability in a modal consequence relation to consistency in unimodal and polymodal K by means of so–called reduction functions. We will present new and easy methods to prove standard results on decidability, complexity, finite model pr ..."
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Cited by 13 (3 self)
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In this paper we will investigate the possibility of reducing derivability in a modal consequence relation to consistency in unimodal and polymodal K by means of so–called reduction functions. We will present new and easy methods to prove standard results on decidability, complexity, finite model
Data cube: A relational aggregation operator generalizing groupby, crosstab, and subtotals
, 1996
"... Abstract. Data analysis applications typically aggregate data across many dimensions looking for anomalies or unusual patterns. The SQL aggregate functions and the GROUP BY operator produce zerodimensional or onedimensional aggregates. Applications need the Ndimensional generalization of these op ..."
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Cited by 860 (11 self)
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of these operators. This paper defines that operator, called the data cube or simply cube. The cube operator generalizes the histogram, crosstabulation, rollup, drilldown, and subtotal constructs found in most report writers. The novelty is that cubes are relations. Consequently, the cube operator can be imbedded
Comparing Consequence Relations
, 1998
"... The technical problem addressed in this paper is, given two rule systems for consequence relations X and Y, how to construct Yapproximations of a given Xrelation. While an upper Y approximation can be easily constructed if all Y rules are Horn, the construction of lower Y approximations is less ..."
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The technical problem addressed in this paper is, given two rule systems for consequence relations X and Y, how to construct Yapproximations of a given Xrelation. While an upper Y approximation can be easily constructed if all Y rules are Horn, the construction of lower Y approximations
Facial expression and emotion
 American Psychologist
, 1993
"... In this article, we review diverse studies of the antecedents, facial display, and social consequences of embarrassment. These studies indicate that embarrassment serves an appeasement function, reconciling social relations when they have gone awry. We then speculate about how embarrassment is elabo ..."
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Cited by 566 (12 self)
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In this article, we review diverse studies of the antecedents, facial display, and social consequences of embarrassment. These studies indicate that embarrassment serves an appeasement function, reconciling social relations when they have gone awry. We then speculate about how embarrassment
Cognitive load during problem solving: effects on learning
 COGNITIVE SCIENCE
, 1988
"... Considerable evidence indicates that domain specific knowledge in the form of schemes is the primary factor distinguishing experts from novices in problemsolving skill. Evidence that conventional problemsolving activity is not effective in schema acquisition is also accumulating. It is suggested t ..."
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Cited by 639 (13 self)
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that a major reason for the ineffectiveness of problem solving as a learning device, is that the cognitive processes required by the two activities overlap insufficiently, and that conventional problem solving in the form of meansends analysis requires a relatively large amount of cognitive processing
Results 1  10
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35,437