Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"Shapley Value"”.
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Market Mechanisms for Service Provider Operations in Advanced Air Mobility
… in an SP's internal operations. Next, we show a Shapley value profit-sharing mechanism to incentivize cooperation cooperation in efficiently routing flights between SPs. Finally, we extend the Shapley value framework to accommodate multiple SPs in the same region of airspace, and study how the …
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Cost Sharing Models in Game Theory = Költségelosztási modellek a játékelméletben
… of cooperative game theory. We defined the core (Shapley, 1955; Gillies, 1959) and the Shapley value (Shapley, 1953), that play an important role in finding a \fair" allocation. In Chapter 4 we presented the class of fixed-tree game and relevant ap- plications from the domain of water management. …
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Computational Methods for Estimating Global Sensitivity Indices and Shapley Values
… global sensitivity measures (DGSM), and Shapley values. The dissertation introduces two new control variate Monte Carlo estimators based on the truncated sparse polynomial chaos expansion of the function in hand. The control variate estimators are used to estimate the lower and upper …
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Appley: Approximate Shapley Values for Model Explainability in Linear Time
… A coalition game theoretic approach called Shapley Value provides a fair way to tackle the challenge. However, the growth of computation time of the exact Shapley Values is exponential in the number of variables. Hence, it is common to use approximations as opposed to the exact Shapley …
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Game Theoretic and Analytical Approaches to International Cooperation and Investment Problems
… and hence to have a nonempty core with the Shapley value allocations belonging to the core. A compensation scheme is devised based on the Shapley value allocations, whereby participants who enjoy a greater payoff with respect to the technological cooperation compensate the participants who …
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Essays on differential information economies
… we show that the private core and the private Shapley value of an economy with differential information are coalitionally implementable.
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TOWARDS RELIABLE AI UNDER DISTRIBUTION SHIFTS: A DATA-CENTRIC PERSPECTIVE
… we propose an efficient approximation for the Shapley value. To improve the quality of data, we develop an approach that reweights the training data to enhance the robustness to subpopulation shift. Finally, we address the shortage of high-quality data. Specifically, we devise a game-theoretic …
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Long-term power systems integration using OSeMOSYS SAMBA - South America Model Base - and the bargaining power of countries : a cooperative games approach
… country (player) was calculated by applying the Shapley value concept. The proposed methodology may provide important information to support policy makers in international negotiations, thus considerably reducing incentives to non-cooperative actions.
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Whose Beliefs Matter for Firm Investment?
… absorbed by that with analyst expectations. Shapley value decompositions of the variation in investment rates explained by beliefs confirm that analyst beliefs consistently play a larger role in explaining investment. Yet, the relationships between investment and future operating …
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High-throughput machine learning algorithms
… in improved analysis of Monte Carlo methods for Shapley value estimation and new, computationally more efficient algorithms based on kernel herding and Bayesian quadrature. We also utilise reproducing kernels over permutations to develop a novel statistical test for the hypothesis that a sample …
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Three essays in collective choice theory
… If the game is convex, its (extended) Shapley value is a PMAS. The third essay considers the problem of two individuals who must jointly choose one from a finite set of alternatives. We argue that more consensus should not hurt: the closer your preferences are to mine, the better I …
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Planning and optimisation of 4G/5G mobile networks and beyond
… the payoff, achieved and distributed using the Shapley value computed using the Owens Multi Linear Extension function. The Memetic-Bee-Swarm Site Location-Allocation Algorithm (MBSSLAA) is inspired by the behaviour of the Memetic algorithm and Bee Swarm Algorithm for site location. Series of …
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Efficient and Faithful Algorithms for Interpretable Machine Learning
… data modeled by MLPs, we focus on accelerating Shapley value computation, a widely used method rooted in cooperative game theory. While Shapley values provide theoretically sound feature attributions, their computation is NP-hard due to the exponential number of input coalitions. To address …
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Temporary migration and wage inequality in Aotearoa New Zealand
… among temporary migrants, employing the Shapley-value regression-based decomposition approach. The study identifies two main factors that influence wage inequality in the context of temporary migration: the migration system, which imposes varying conditions for migrants based on skills …
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Advancing Deep Learning Across Modalities: From Explainability to Multimodal Content Understanding
L'abstract è presente nell'allegato / the abstract is in the attachment
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Essays on Financial Economics
This dissertation consists of three papers. In the first paper, I study firms' capital raising decisions in a two-stage signaling game. In the model, firms can issue debt or equity to finance sequentially arriving investment projects. Management is assumed to have an initial information advantage …
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Resource Allocation on Networks: Nested Event Tree Optimization, Network Interdiction, and Game Theoretic Methods
… while also achieving solutions of objective value 0.20% better than BARON. The third application is likewise motivated by the author's military experience in Iraq, both from several instances involving coalition forces attempting to interdict the transport of a kidnapping victim by a …
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Canaries in the coal mine: Boosted machine learning for the classification of recessions in the eurozone business cycle
… gradient boosting framework. Using quarterly GDP values for all of the EA19 (with the exception of Ireland due to data availability), business cycle data was produced using the Bry-Boschan algorithm, coupled with seasonal and calendar smoothing via Eurostat. In order to identify the nations which …