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Introduction Similar situations
"... This paper studies the notion of similarity with reference to situations of situation ..."
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This paper studies the notion of similarity with reference to situations of situation
Detecting Long-Run Abnormal Stock Returns: The Empirical Power and Specification of Test Statistics
- Journal of Financial Economics
, 1997
"... We analyze the empirical power and specification of test statistics in event studies designed to detect long-run (one- to five-year) abnormal stock returns. We document that test statistics based on abnormal returns calculated using a reference portfolio, such as a market index, are misspecified (em ..."
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Cited by 548 (9 self)
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(empirical rejection rates exceed theoretical rejection rates) and identify three reasons for this misspecification. We correct for the three identified sources of misspecification by matching sample firms to control firms of similar sizes and book-to-market ratios. This control firm approach yields well
The architecture of complexity
- Proceedings of the American Philosophical Society
, 1962
"... A number of proposals have been advanced in recent years for the development of “general systems theory ” that, abstracting from properties peculiar to physical, biological, or social systems, would be applicable to all of them. 1 We might well feel that, while the goal is laudable, systems of such ..."
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Cited by 772 (1 self)
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of such diverse kinds could hardly be expected to have any nontrivial properties in common. Metaphor and analogy can be helpful, or they can be misleading. All depends on whether the similarities the metaphor captures are significant or superficial. It may not be entirely vain, however, to search for common
Cluster Ensembles - A Knowledge Reuse Framework for Combining Multiple Partitions
- Journal of Machine Learning Research
, 2002
"... This paper introduces the problem of combining multiple partitionings of a set of objects into a single consolidated clustering without accessing the features or algorithms that determined these partitionings. We first identify several application scenarios for the resultant 'knowledge reuse&ap ..."
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Cited by 603 (20 self)
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(consensus functions). The first combiner induces a similarity measure from the partitionings and then reclusters the objects. The second combiner is based on hypergraph partitioning. The third one collapses groups of clusters into meta-clusters which then compete for each object to determine the combined
Motivation through the Design of Work: Test of a Theory. Organizational Behavior and Human Performance,
, 1976
"... A model is proposed that specifies the conditions under which individuals will become internally motivated to perform effectively on their jobs. The model focuses on the interaction among three classes of variables: (a) the psychological states of employees that must be present for internally motiv ..."
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Cited by 622 (2 self)
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such methodologies are developed, it will remain impractical to use activation theory in predicting or changing employee reactions to their jobs except in a very gross fashion; e.g., in situations where it is clear that most employees are enormously over-or understimulated by their jobs. A second problem has to do
Finding Similar Situations in Sequences of Events Via Random Projections
, 2001
"... Sequences of events arise naturally in various applications. Such sequences consist of pairs of event type and occurrence time. The similarity search problem is the following: given a query window into the sequence, i.e., the subsequence consisting of the events occurring within a period of time, fi ..."
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Cited by 6 (0 self)
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indeed finds similar situations and works quite fast.
Generalization in Reinforcement Learning: Successful Examples Using Sparse Coarse Coding
- Advances in Neural Information Processing Systems 8
, 1996
"... On large problems, reinforcement learning systems must use parameterized function approximators such as neural networks in order to generalize between similar situations and actions. In these cases there are no strong theoretical results on the accuracy of convergence, and computational results have ..."
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Cited by 433 (20 self)
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On large problems, reinforcement learning systems must use parameterized function approximators such as neural networks in order to generalize between similar situations and actions. In these cases there are no strong theoretical results on the accuracy of convergence, and computational results
REVOCABLE TRUST, On Behalf of Themselves and All Others Similarly Situated, Plaintiffs,
"... vs. ENRON CORP., et al., ..."
The Determinants of Credit Spread Changes.
- Journal of Finance
, 2001
"... ABSTRACT Using dealer's quotes and transactions prices on straight industrial bonds, we investigate the determinants of credit spread changes. Variables that should in theory determine credit spread changes have rather limited explanatory power. Further, the residuals from this regression are ..."
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Cited by 422 (2 self)
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like Treasury bonds, and (2) low-grade bonds are more sensitive to stock returns. The implications of these studies may be limited in many situations of interest, however. For example, hedge funds often take highly levered positions in corporate bonds while hedging away interest rate risk by shorting
In press, Journal of Personality and Social Psychology Running Head: SITUATIONAL SIMILARITY Situational Similarity and Personality Predict Behavioral Consistency
"... A new method for assessing situations is employed to examine the association between situational similarity, personality, and behavioral consistency across ecologically representative contexts. On four occasions across four weeks 202 undergraduate participants (105 F, 97 M) wrote descriptions of a s ..."
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A new method for assessing situations is employed to examine the association between situational similarity, personality, and behavioral consistency across ecologically representative contexts. On four occasions across four weeks 202 undergraduate participants (105 F, 97 M) wrote descriptions of a
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