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Yorgos Felekis

4 accepted papers

2025

Causal Abstraction Learning based on the Semantic Embedding Principle

ICML 2025poster

Structural causal models (SCMs) allow us to investigate complex systems at multiple levels of resolution. The causal abstraction (CA) framework formalizes the mapping between high- and low-level SCMs. We address CA learning in a challenging and realistic setting, where SCMs are inaccessible, interv…

2024

Causally Abstracted Multi-armed Bandits

UAI 2024poster

Multi-armed bandits (MAB) and causal MABs (CMAB) are established frameworks for decision-making problems. The majority of prior work typically studies and solves individual MAB and CMAB in isolation for a given problem and associated data. However, decision-makers are often faced with multiple relat…

2024

Interventionally Consistent Surrogates for Complex Simulation Models

NeurIPS 2024poster

Large-scale simulation models of complex socio-technical systems provide decision-makers with high-fidelity testbeds in which policy interventions can be evaluated and _what-if_ scenarios explored. Unfortunately, the high computational cost of such models inhibits their widespread use in policy-maki…

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