In cond-mat/0002074 Ricci-Tersenghi et al. find two linear regimes in the
fluctuation-dissipation relation between density-density correlations and
associated responses of the Frustrated Ising Lattice Gas. Here we show that
this result does not seem to correspond to the equilibrium quantities of the
model, by measuring the overlap distribution P(q) of the density and comparing
the FDR expected on the ground of the P(q) with the one measured in the
off-equilibrium experiments.Comment: RevTeX, 1 page, 2 eps figures, Comment on F. Ricci-Tersenghi et al.,
  Phys. Rev. Lett. 84, 4473 (2000

Brooks R. A.

Gat E.

Kaelbling L.P.

Laffey T. J.

Musliner D. J.

Nilsson N. J.

Nilsson R. E.

Rossnschein S. J.

Stankovic J. A.

Wilkins D.

English

arXiv

In all embedded computing systems, some delay exists between sensing and acting. By choosing an action based on sensed data, a system is essentially predicting that there will be no significant changes in the world during this delay. However, the dynamic and uncertain nature of the real world can make these predictions incorrect, and thus, a system may execute inappropriate actions. Making systems more reactive by decreasing the gap between sensing and action leaves less time for predictions to err, but still provides no principled assurance that they will be correct. Using the concept of predictive sufficiency described in this paper, a system can prove that its predictions are valid, and that it will never execute inappropriate actions. In the context of our CIRCA system, we also show how predictive sufficiency allows a system to guarantee worst-case response times to changes in its environment. Using predictive sufficiency, CIRCA is able to build real-time reactive control plans which provide a sound basis for performance guarantees that are unavailable with other reactive systems

Musliner, David J.

Durfee, Edmund H.

Shin, Kang G.

NASA Technical Reports Server

Predictive sufficiency and the use of stored internal state

DE CANDIA, ANTONIO

CONIGLIO, ANTONIO

Archivio della ricerca - Università degli studi di Napoli Federico II

Comment on Two Time Scales and Violation of the Fluctuation-Dissipation Theorem in a Finite Dimensional Model for Structural Glasses

David Musliner

Edmund Durfee

Kang Shin

Crossref

In all embedded computing systems, some delay exists between sensing and acting. By choosing an action based on sensed data, a system is essentially predicting that there will be no significant changes in the world during this delay. However, the dynamic and uncertain nature of the real world can make these predictions incorrect, and thus a system may execute inappropriate actions. Making systems more reactive by decreasing the gap between sensing and action leaves less time for predictions to err, but still provides no principled assurance that they will be correct. Using the concept of predictive sufficiency described in this paper, a system can prove that its predictions are valid, and that it will never execute inappropriate actions. In the context of our CIRCA system, we also show how predictive sufficiency allows a system to guarantee worst-case response times to changes in its environment. Using predictive sufficiency, CIRCA is able to build real-time reactive control plans whic..

David J. Musliner

Edmund H. Durfee

Kang G. Shin

CiteSeerX

PREDICTIVE SUFFICIENCY AND THE USE OF STORED INTERNAL STATE

A. de Candia

A. Coniglio

Physical Review Letters

Comment on “Two Time Scales and Violation of the Fluctuation-Dissipation Theorem in a Finite Dimensional Model for Structural Glasses”

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76819/1/AIAA-1994-1213-764.pd

Musliner, David John

Deep Blue Documents

http://deepblue.lib.umich.edu/bitstream/2027.42/76819/1/AIAA-1994-1213-764.pdf

Comment on ``Two Time Scales and Violation of the
  Fluctuation-Dissipation Theorem in a Finite Dimensional Model for Structural
  Glasses''

Comment on ``Two Time Scales and Violation of the Fluctuation-Dissipation Theorem in a Finite Dimensional Model for Structural Glasses''

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NASA Technical Reports Server

Archivio della ricerca - Università degli studi di Napoli Federico II

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