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A Conceptual Framework and a Toolkit for Supporting the Rapid Prototyping of Context-Aware Applications

by Anind K. Dey, Gregory D. Abowd, Daniel Salber , 2001
"... Computing devices and applications are now used beyond the desktop, in diverse environments, and this trend toward ubiquitous computing is accelerating. One challenge that remains in this emerging research field is the ability to enhance the behavior of any application by informing it of the context ..."
Abstract - Cited by 906 (28 self) - Add to MetaCart
-aware applications. In this paper, we address these three problems in turn. We first define context, identify categories of contextual information, and characterize context-aware application behavior. Though the full impact of context-aware computing requires understanding very subtle and high-level notions

Cooperative diversity in wireless networks: efficient protocols and outage behavior

by J. Nicholas Laneman, David N. C. Tse, Gregory W. Wornell - IEEE TRANS. INFORM. THEORY , 2004
"... We develop and analyze low-complexity cooperative diversity protocols that combat fading induced by multipath propagation in wireless networks. The underlying techniques exploit space diversity available through cooperating terminals’ relaying signals for one another. We outline several strategies ..."
Abstract - Cited by 2009 (31 self) - Add to MetaCart
the destination terminal. We develop performance characterizations in terms of outage events and associated outage probabilities, which measure robustness of the transmissions to fading, focusing on the high signal-to-noise ratio (SNR) regime. Except for fixed decode-and-forward, all of our cooperative diversity

Recognition-by-components: A theory of human image understanding

by Irving Biederman - Psychological Review , 1987
"... The perceptual recognition of objects is conceptualized to be a process in which the image of the input is segmented at regions of deep concavity into an arrangement of simple geometric components, such as blocks, cylinders, wedges, and cones. The fundamental assumption of the proposed theory, recog ..."
Abstract - Cited by 1272 (23 self) - Add to MetaCart
of perceptual organization and pattern recognition: The constraints toward regularization (Pragnanz) characterize not the complete object but the object's components. Representational power derives from an allowance of free combinations of the geons. A Principle of Componential Recovery can account

Measuring the information content of stock trades

by Joel Hasbrouck - Journal of Finance , 1991
"... This paper suggests that the interactions of security trades and quote revisions be modeled as a vector autoregressive system. Within this framework, a trade's information effect may be meaningfully measured as the ultimate price impact of the trade innovation. Estimates for a sample of NYSE is ..."
Abstract - Cited by 469 (11 self) - Add to MetaCart
issues suggest: a trade's full price impact arrives only with a protracted lag; the impact is a positive and concave function of the trade size; large trades cause the spread to widen; trades occurring in the face of wide spreads have larger price impacts; and, information asymmetries are more

A Full Characterization of Quantum Advice

by Scott Aaronson, Andrew Drucker
"... We prove the following surprising result: given any quantum state ρ on n qubits, there exists a local Hamiltonian H on poly (n) qubits (e.g., a sum of two-qubit interactions), such that any ground state of H can be used to simulate ρ on all quantum circuits of fixed polynomial size. In terms of comp ..."
Abstract - Cited by 2 (0 self) - Add to MetaCart
of complexity classes, this implies that BQP/qpoly ⊆ QMA/poly, which supersedes the previous result of Aaronson that BQP/qpoly ⊆ PP/poly. Indeed, we can exactly characterize quantum advice, as equivalent in power to untrusted quantum advice combined with trusted classical advice. Proving our main result

Full characterization of optimal transport plans for concave costs

by Paul Pegon , Davide Piazzoli , Filippo Santambrogio - Disc. Cont. Dyn. Syst. A
"... Abstract. This paper slightly improves a classical result by MSC 2010 : 49J45, 49K21, 49Q20, 28A75 ..."
Abstract - Cited by 2 (0 self) - Add to MetaCart
Abstract. This paper slightly improves a classical result by MSC 2010 : 49J45, 49K21, 49Q20, 28A75

Does Income Inequality Lead to Consumption Inequality? Evidence and Theory

by Dirk Krueger, Fabrizio Perri , 2005
"... Using data from the Consumer Expenditure Survey, we first document that the recent increase in income inequality in the United States has not been accompanied by a corresponding rise in consumption inequality. Much of this divergence is due to different trends in within-group inequality, which has i ..."
Abstract - Cited by 364 (28 self) - Add to MetaCart
increased significantly for income but little for consumption. We then develop a simple framework that allows us to analytically characterize how within-group income inequality affects consumption inequality in a world in which agents can trade a full set of contingent consumption claims, subject

Existence of Equilibria in Games with Arbitrary Strategy Spaces and Payoffs: A Full Characterization

by Guoqiang Tian , 2009
"... This paper provides a complete solution to the question of the existence of equilibria in games with general strategy spaces that may be discrete, continuum or non-convex and payoff functions that may be discontinuous or do not have any form of quasi-concavity. We establish a single condition, calle ..."
Abstract - Cited by 7 (1 self) - Add to MetaCart
equilibrium. Moreover, recursive diagonal transfer continuity also permits full characterization of symmetric, mixed strategy, and Bayesian Nash equilibria in games with general strategy spaces and payoffs. The approach and main result developed in the paper can also allow us to ascertain the existence

A Full Characterization of Completeness for Two-party Randomized Function Evaluation∗

by Daniel Kraschewski, Hemanta K. Maji, Manoj Prabhakaran, Amit Sahai
"... We settle a long standing open problem which has pursued a full characterization of completeness of (potentially randomized) finite functions for 2-party computation that is secure against active adversaries. Since the first such complete function was discovered [Kilian, FOCS 1988], the question of ..."
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We settle a long standing open problem which has pursued a full characterization of completeness of (potentially randomized) finite functions for 2-party computation that is secure against active adversaries. Since the first such complete function was discovered [Kilian, FOCS 1988], the question

2010): A full characterization of Nash implementation with strategy space reduction. Available at SSRN: http://ssrn.com/abstract=1593690

by Michele Lombardi , Naoki Yoshihara
"... Abstract Noting that a full characterization of Nash-implementation is given using a canonical-mechanism and Maskin's theorem JEL classification: C72; D71; D82. ..."
Abstract - Cited by 5 (4 self) - Add to MetaCart
Abstract Noting that a full characterization of Nash-implementation is given using a canonical-mechanism and Maskin's theorem JEL classification: C72; D71; D82.
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