Results 1 - 10 of 6,412

Stacked generalization

by David H. Wolpert - NEURAL NETWORKS , 1992
"... This paper introduces stacked generalization, a scheme for minimizing the generalization error rate of one or more generalizers. Stacked generalization works by deducing the biases of the generalizer(s) with respect to a provided learning set. This deduction proceeds by generalizing in a second sp ..."
Abstract - Cited by 731 (9 self) - Add to MetaCart
for the NETtalk task of translating text to phonemes. The second demonstrates how stacked generalization improves the performance of a single surface-fitter. With the other experimental evidence in the literature, the usual arguments supporting cross-validation, and the abstract justifications presented

Calibrating noise to sensitivity in private data analysis

by Cynthia Dwork, Frank Mcsherry, Kobbi Nissim, Adam Smith - In Proceedings of the 3rd Theory of Cryptography Conference , 2006
"... Abstract. We continue a line of research initiated in [10, 11] on privacypreserving statistical databases. Consider a trusted server that holds a database of sensitive information. Given a query function f mapping databases to reals, the so-called true answer is the result of applying f to the datab ..."
Abstract - Cited by 649 (60 self) - Add to MetaCart
Abstract. We continue a line of research initiated in [10, 11] on privacypreserving statistical databases. Consider a trusted server that holds a database of sensitive information. Given a query function f mapping databases to reals, the so-called true answer is the result of applying f

A framework for argumentation-based negotiation

by Carles Sierra, Nick R. Jennings, Pablo Noriega, Simon Parsons - Proceedings of the 4th International Workshop on Agent Theories, Architectures, and Languages (ATAL-97), volume 1365 of LNAI , 1998
"... Abstract. Many autonomous agents operate in domains in which the cooperation of their fellow agents cannot be guaranteed. In such domains negotiation is essential to persuade others of the value of co-operation. This paper describes a general framework for negotiation in which agents exchange propos ..."
Abstract - Cited by 289 (57 self) - Add to MetaCart
proposals backed by arguments which summarise the reasons why the proposals should be accepted. The argumentation is persuasive because the exchanges are able to alter the mental state of the agents involved. The framework is inspired by our work in the domain of business process management and is explained

The Determinants of Credit Spread Changes.

by Pierre Collin-Dufresne , Robert S Goldstein , J Spencer Martin , Gurdip Bakshi , Greg Bauer , Dave Brown , Francesca Carrieri , Peter Christoffersen , Susan Christoffersen , Greg Duffee , Darrell Duffie , Vihang Errunza , Gifford Fong , Mike Gallmeyer , Laurent Gauthier , Rick Green , John Griffin , Jean Helwege , Kris Jacobs , Chris Jones , Andrew Karolyi , Dilip Madan , David Mauer , Erwan Morellec , Federico Nardari , N R Prabhala , Tony Sanders , Sergei Sarkissian , Bill Schwert , Ken Singleton , Chester Spatt , René Stulz - 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 ..."
Abstract - Cited by 422 (2 self) - Add to MetaCart
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

Computation in extended argumentation frameworks

by Paul E. Dunne, Sanjay Modgil, Trevor Bench-capon - in: Proc. 19th ECAI, Univ. of , 2010
"... Abstract. Extended Argumentation Frameworks (EAFs) are a recently proposed formalism that develop abstract argumentation frameworks (AFs) by allowing attacks between arguments to be at-tacked themselves: hence EAFs add a relationshipD ⊆ X ×A to the arguments (X) and attacks (A ⊆ X × X) in an AF’s ba ..."
Abstract - Cited by 2 (1 self) - Add to MetaCart
in computational settings has been undertaken. In this paper we address this lacuna, considering algorithmic and com-plexity properties specific to EAFs. We show that (as for standard AFs) the problem of determining if an argument is acceptable w.r.t. a subset of X is polynomial time decidable and, thus

Augmenting Tractable Fragments of Abstract Argumentation

by Sebastian Ordyniak, Stefan Szeider - PROCEEDINGS OF THE TWENTY-SECOND INTERNATIONAL JOINT CONFERENCE ON ARTIFICIAL INTELLIGENCE
"... We present a new and compelling approach to the efficient solution of important computational problems that arise in the context of abstract argumentation. Our approach makes known algorithms defined for restricted fragments generally applicable, at a computational cost that scales with the distance ..."
Abstract - Cited by 11 (4 self) - Add to MetaCart
We present a new and compelling approach to the efficient solution of important computational problems that arise in the context of abstract argumentation. Our approach makes known algorithms defined for restricted fragments generally applicable, at a computational cost that scales

Complexity Properties of Critical Sets of Arguments

by Richard Booth , Martin Caminada , Paul E Dunne , Mikołaj Podlaszewski , Iyad Rahwan
"... Abstract. In an abstract argumentation framework, there are often multiple plausible ways to evaluate (or label) the status of each argument as accepted, rejected, or undecided. But often there exists a critical set of arguments whose status is sufficient to determine uniquely the status of every o ..."
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Abstract. In an abstract argumentation framework, there are often multiple plausible ways to evaluate (or label) the status of each argument as accepted, rejected, or undecided. But often there exists a critical set of arguments whose status is sufficient to determine uniquely the status of every

Coherence in Finite Argument Systems

by Paul E. Dunne, T.J.M. Bench-Capon , 2001
"... Argument Systems provide a rich abstraction within which divers concepts of reasoning, acceptability and defeasibility of arguments, etc., may be studied using a unified framework. Two important concepts of the acceptability of an argument p in such systems are credulous acceptance to capture the no ..."
Abstract - Cited by 87 (28 self) - Add to MetaCart
Argument Systems provide a rich abstraction within which divers concepts of reasoning, acceptability and defeasibility of arguments, etc., may be studied using a unified framework. Two important concepts of the acceptability of an argument p in such systems are credulous acceptance to capture

Conditional labelling for abstract argumentation

by Guido Boella, Dov M. Gabbay, Alan Perotti, Leendert Van Der Torre, Serena Villata
"... Abstract. Agents engage in dialogues having as goals to make some arguments acceptable or unacceptable. To do so they may put forward arguments, adding them to the argumentation framework. Argumentation semantics can relate a change in the framework to the resulting extensions but it is not clear, g ..."
Abstract - Cited by 3 (1 self) - Add to MetaCart
Abstract. Agents engage in dialogues having as goals to make some arguments acceptable or unacceptable. To do so they may put forward arguments, adding them to the argumentation framework. Argumentation semantics can relate a change in the framework to the resulting extensions but it is not clear

Change in abstract argumentation frameworksl adding an argument

by Claudette Cayrol - Journal of Artificial Intelligence Research , 2010
"... In this paper, we address the problem of change in an abstract argumentation system. We focus on a particular change: the addition of a new argument which interacts with previous arguments. We study the impact of such an addition on the outcome of the argumentation system, more particularly on the s ..."
Abstract - Cited by 11 (2 self) - Add to MetaCart
In this paper, we address the problem of change in an abstract argumentation system. We focus on a particular change: the addition of a new argument which interacts with previous arguments. We study the impact of such an addition on the outcome of the argumentation system, more particularly
Results 1 - 10 of 6,412