The Experts below are selected from a list of 1647 Experts worldwide ranked by ideXlab platform
Mario Günther - One of the best experts on this subject based on the ideXlab platform.
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Learning Conditional Information by Jeffrey Imaging on Stalnaker Conditionals
Journal of Philosophical Logic, 2018Co-Authors: Mario GüntherAbstract:We propose a method of learning indicative conditional information. An agent learns conditional information by Jeffrey imaging on the minimally informative proposition expressed by a Stalnaker conditional. We show that the predictions of the proposed method align with the intuitions in Douven ( Mind & Language , 27 (3), 239–263 2012 )’s benchmark examples. Jeffrey imaging on Stalnaker conditionals can also capture the learning of uncertain conditional information, which we illustrate by generating predictions for the Judy Benjamin Problem.
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Learning Conditional and Causal Information by Jeffrey Imaging on Stalnaker Conditionals
Organon F, 2017Co-Authors: Mario GüntherAbstract:We show that the learning of (uncertain) conditional and/or causal information may be modelled by (Jeffrey) imaging on Stalnaker conditionals. We adapt the method of learning uncertain conditional information proposed in Gunther (2017) to a method of learning uncertain causal information. The idea behind the adaptation parallels Lewis (1973c)'s analysis of causal dependence. The combination of the methods provides a unified account of learning conditional and causal information that manages to clearly distinguish between conditional, causal and conjunctive information. Moreover, our framework seems to be the first general solution that generates the correct predictions for Douven (2012)'s benchmark examples and the Judy Benjamin Problem.
Peter Fritz - One of the best experts on this subject based on the ideXlab platform.
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on Stalnaker s simple theory of propositions
Journal of Philosophical Logic, 2021Co-Authors: Peter FritzAbstract:Robert Stalnaker recently proposed a simple theory of propositions using the notion of a set of propositions being consistent, and conjectured that this theory is equivalent to the claim that propositions form a complete atomic Boolean algebra. This paper clarifies and confirms this conjecture. Stalnaker also noted that some of the principles of his theory may be given up, depending on the intended notion of proposition. This paper therefore also investigates weakened constraints on consistency and the corresponding classes of Boolean algebras.
Joseph G Sweet - One of the best experts on this subject based on the ideXlab platform.
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implementation of self consolidating concrete in caisson construction for the Stalnaker run bridge
Construction and Building Materials, 2012Co-Authors: Joseph G Sweet, Hungliang ChenAbstract:Abstract To utilize cast-in-place self-consolidating concrete (SCC) for caissons on a rural bridge replacement, specifications were first written as guidelines. A mix design was developed and tested in a reusable trial caisson that would simulate field casting conditions. A fresh sampling technique was devised to investigate the distribution of SCC within the trial caisson. Petrographic analysis of hardened samples was done to quantify the amounts of aggregates present at twenty different locations within the trial caisson. The SCC mix design was then successfully used to cast caissons of one of the two bridge abutments, with no major defects detected by cross-hole sonic logging (CSL). Hardened property tests revealed SCC compressive strengths and modulus of elasticity values that were similar to a traditional caisson concrete used on the project, while the total measured shrinkage and the splitting tensile strengths of the field SCC were seen to be lower than those of the traditional caisson concrete.
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Self-Consolidating Concrete for Caisson Construction in the Stalnaker Run Bridge Replacement
2011Co-Authors: Roger H. L. Chen, Joseph G SweetAbstract:During this project, specifications were written for the use of cast-in-place Self-Consolidating Concrete (SCC) on three caissons for a rural bridge replacement of the Stalnaker Run Bridge in West Virginia. A trial caisson casting, featuring the same cross-sectional dimensions and reinforcement layout as the original design of the drilled shaft portions of the replacement bridge, was constructed in the laboratory using the approved ready-mix SCC mix design, and wet-hole casting conditions were simulated for this pour. Removal of "fresh cores" from the trial caisson was accomplished to investigate the properties the hardened SCC. Analysis was done to quantify the amounts of aggregates present at twenty different locations within the test caisson. The SCC mix design was then successfully used in the field for casting the bridge caissons of one of the two bridge abutments. Hardened property tests of samples taken from the field reveal that the SCC had compressive strengths and modulus of elasticity values that were similar to the traditional caisson concrete, while the total measured shrinkage and the splitting tensile strengths of the field SCC were seen to be lower than those of the traditional caisson concrete.
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Self-Consolidating Concrete for Caissons in the Stalnaker Run Bridge
HPC Bridge Views, 2011Co-Authors: Joseph G Sweet, Roger H. L. ChenAbstract:This article will describe how self-consolidating concrete (SCC) was used in the construction of three caissons for a rural bridge replacement of the Stalnaker Run Bridge in West Virginia. The project was part of an Innovative Bridge Research and Deployment (IBRD) initiative with support from the Federal Highway Administration (FHWA) and the West Virginia Department of Transportation (WVDOT). The Stalnaker Run Bridge is located on Old Route 219 in Elkins, WV. For the purpose of comparison, this article shows how SCC was used to cast elements of both the substructure and the superstructure of the single-span bridge, with traditional vibrated concrete being used to cast identical elements in the same bridge. This bridge was the first construction project for WVDOT that included the use of SCC.
Hungliang Chen - One of the best experts on this subject based on the ideXlab platform.
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implementation of self consolidating concrete in caisson construction for the Stalnaker run bridge
Construction and Building Materials, 2012Co-Authors: Joseph G Sweet, Hungliang ChenAbstract:Abstract To utilize cast-in-place self-consolidating concrete (SCC) for caissons on a rural bridge replacement, specifications were first written as guidelines. A mix design was developed and tested in a reusable trial caisson that would simulate field casting conditions. A fresh sampling technique was devised to investigate the distribution of SCC within the trial caisson. Petrographic analysis of hardened samples was done to quantify the amounts of aggregates present at twenty different locations within the trial caisson. The SCC mix design was then successfully used to cast caissons of one of the two bridge abutments, with no major defects detected by cross-hole sonic logging (CSL). Hardened property tests revealed SCC compressive strengths and modulus of elasticity values that were similar to a traditional caisson concrete used on the project, while the total measured shrinkage and the splitting tensile strengths of the field SCC were seen to be lower than those of the traditional caisson concrete.
Kurt Norlin - One of the best experts on this subject based on the ideXlab platform.
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A Stalnaker Semantics for McGee Conditionals
Erkenntnis, 2019Co-Authors: Kurt NorlinAbstract:The semantics Vann McGee gives for his 1989 conditional logic is based on Stalnaker’s 1968 semantics but replaces the familiar concept of truth at a world with the novel concept of truth under a hypothesis. Developed here is a semantics of the standard type, in which sentences are true at worlds, only with additional constraints imposed on the accessibility relation and the selection function. McGee conditionals of the form A ⇒ X are translated into Stalnaker conditionals of the form \( \Box \)A > X. An interpretation of the semantics is provided, and a few implications for the theory of indicative conditionals and their probabilities are noted.
