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Stochastic Tracking of 3D Human Figures Using 2D Image Motion

by Hedvig Sidenbladh, Michael J. Black, D. J. Fleet - In European Conference on Computer Vision , 2000
"... . A probabilistic method for tracking 3D articulated human gures in monocular image sequences is presented. Within a Bayesian framework, we de ne a generative model of image appearance, a robust likelihood function based on image graylevel dierences, and a prior probability distribution over pose an ..."
Abstract - Cited by 383 (33 self) - Add to MetaCart
and joint angles that models how humans move. The posterior probability distribution over model parameters is represented using a discrete set of samples and is propagated over time using particle ltering. The approach extends previous work on parameterized optical ow estimation to exploit a complex 3D

The dynamics of reinforcement learning in cooperative multiagent systems

by Caroline Claus, Craig Boutilier - IN PROCEEDINGS OF NATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE (AAAI-98 , 1998
"... Reinforcement learning can provide a robust and natural means for agents to learn how to coordinate their action choices in multiagent systems. We examine some of the factors that can influence the dynamics of the learning process in such a setting. We first distinguish reinforcement learners that a ..."
Abstract - Cited by 377 (1 self) - Add to MetaCart
that are unaware of (or ignore) the presence of other agents from those that explicitly attempt to learn the value of joint actions and the strategies of their counterparts. We study (a simple form of) Q-learning in cooperative multiagent systems under these two perspectives, focusing on the influence of that game

Joint Tx-Rx beamforming design for multicarrier MIMO channels: a unified framework for convex optimization

by Daniel Pérez Palomar, John M. Cioffi, Miguel Angel Lagunas - IEEE TRANS. SIGNAL PROCESSING , 2003
"... This paper addresses the joint design of transmit and receive beamforming or linear processing (commonly termed linear precoding at the transmitter and equalization at the receiver) for multicarrier multiple-input multiple-output (MIMO) channels under a variety of design criteria. Instead of consid ..."
Abstract - Cited by 297 (19 self) - Add to MetaCart
This paper addresses the joint design of transmit and receive beamforming or linear processing (commonly termed linear precoding at the transmitter and equalization at the receiver) for multicarrier multiple-input multiple-output (MIMO) channels under a variety of design criteria. Instead

Exploring Spatial Data Through Computational Intelligence: A Joint Perspective

by Marco Painho, Athanasios Vasilakos, Fernando Bacao, Witold Pedrycz, M. Painho, F. Bacao, A. Vasilakos, W. Pedrycz , 2005
"... The dramatic increase in geospatial data occasioned by developments in digital mapping, remote sensing, IT, and widespread generalization of Geographic Information Systems (GIS), emphasises the importance of exploring new approaches to spatial analysis and modelling. This favours the creation of new ..."
Abstract - Cited by 2 (0 self) - Add to MetaCart
The dramatic increase in geospatial data occasioned by developments in digital mapping, remote sensing, IT, and widespread generalization of Geographic Information Systems (GIS), emphasises the importance of exploring new approaches to spatial analysis and modelling. This favours the creation of new knowledge and eventually helps the process of scientific discovery. In this context the special nature of spatial data is particularly relevant and should be taken into account (e.g. observations are not independent and data uncertainty and errors are often spatially structured) . The tolerance of imprecision and uncertainty makes soft computing a potentially very useful tool in the GIS environment. Computational Intelligence (or Soft computing) fits particularly well with GIS applications in those cases where computationally hard problems cannot be solved by classical algorithmic approaches.

A Joint Perspective Towards Image Super-Resolution: Unifying External- and Self-Examples

by unknown authors
"... Existing example-based super resolution (SR) methods are built upon either external-examples or self-examples. Although effective in certain cases, both methods suffer from their inherent limitation. This paper goes beyond these two classes of most common example-based SR approaches, and proposes a ..."
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novel joint SR perspective. The joint SR exploits and maximizes the complementary advantages of external- and self-example based methods. We elaborate on exploitable priors for image components of different nature, and formulate their corresponding loss functions mathe-matically. Equipped with that, we

Multi-Cell MIMO Cooperative Networks: A New Look at Interference

by David Gesbert, Stephen Hanly, Howard Huang, Shlomo Shamai Shitz, Osvaldo Simeone, Wei Yu - J. Selec. Areas in Commun. (JSAC , 2010
"... Abstract—This paper presents an overview of the theory and currently known techniques for multi-cell MIMO (multiple input multiple output) cooperation in wireless networks. In dense networks where interference emerges as the key capacitylimiting factor, multi-cell cooperation can dramatically improv ..."
Abstract - Cited by 257 (40 self) - Add to MetaCart
improve the system performance. Remarkably, such techniques literally exploit inter-cell interference by allowing the user data to be jointly processed by several interfering base stations, thus mimicking the benefits of a large virtual MIMO array. Multicell MIMO cooperation concepts are examined from

An Integrated Structural-form Corporate Credit Model: Joint Perspectives of Asset Inadequacy and Liquidity Crunch

by Chia-wu Lu, Tsung-kang Chen, Hsien-hsing Liao
"... Among the first studies, this research develops a structural-form credit risk model being able to integrate both “asset inadequacy risk ” and “liquidity crunch risk ” of a firm. The new model differs from traditional structural-form credit models in that it additionally considers a firm’s flow-based ..."
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Among the first studies, this research develops a structural-form credit risk model being able to integrate both “asset inadequacy risk ” and “liquidity crunch risk ” of a firm. The new model differs from traditional structural-form credit models in that it additionally considers a firm’s flow-based insolvency as well as default risk due to asset inadequacy. This model can endogenously generate a firm’s probability of default, resulting from either asset inadequacy, liquidity crunch, or both. Our results of numerical analyses show that the model can catch the short-term default risk underestimated by Merton-type structural form models. Besides, an application to American banks also shows that this model performs better than the Merton-type structural form models in evaluating short-term credit risk.

Cognitive Radio: An Information-Theoretic Perspective

by Aleksandar Jovičić, Pramod Viswanath , 2009
"... We consider a communication scenario in which the primary and the cognitive radios wish to communicate to different receivers, subject to mutual interference. In the model that we use, the cognitive radio has non-causal knowledge of the primary radio’s codeword. We characterize the largest rate at w ..."
Abstract - Cited by 183 (1 self) - Add to MetaCart
the standpoint of maximal jointly achievable rates for the primary and cognitive users.

Organizing and the process of sensemaking

by Karl E. Weick, Kathleen M. Sutcliffe, David Obstfeld - Organization Science , 2005
"... informs ® doi 10.1287/orsc.1050.0133 © 2005 INFORMS Sensemaking involves turning circumstances into a situation that is comprehended explicitly in words and that serves as a springboard into action. In this paper we take the position that the concept of sensemaking fills important gaps in organizati ..."
Abstract - Cited by 211 (2 self) - Add to MetaCart
, and some of which have been missing all along or have gone awry. We sense joint enthusiasm to restate sensemaking in ways that make it more future oriented, more action oriented, more macro, more closely tied to organizing, meshed more boldly with identity, more visible, more behaviorally defined, less

Neural correlates of first-person-perspective.

by K Vogeley , M May , A Ritzl , P Falkai , K Zilles , G R Fink - Trends in Cognitive Science, , 2003
"... Abstract & Taking the first-person perspective (1PP) centered upon one's own body as opposed to the third-person perspective (3PP), which enables us to take the viewpoint of someone else, is constitutive for human self-consciousness. At the underlying representational or cognitive level, t ..."
Abstract - Cited by 140 (5 self) - Add to MetaCart
Abstract & Taking the first-person perspective (1PP) centered upon one's own body as opposed to the third-person perspective (3PP), which enables us to take the viewpoint of someone else, is constitutive for human self-consciousness. At the underlying representational or cognitive level
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