Researcher profile
Georgios Theocharous
2 papers in the PaperMetrix corpus
Publications
Papers by this author
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Graphical Model Sketch
2016 · arXiv (Cornell University)
Structured high-cardinality data arises in many domains, and poses a major challenge for both modeling and inference. Graphical models are a popular approach to modeling structured data but they are unsuitable for high-cardinality variables. The …
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Off-Policy Evaluation in Embedded Spaces
2022 · arXiv (Cornell University)
Off-policy evaluation methods are important in recommendation systems and search engines, where data collected under an existing logging policy is used to estimate the performance of a new proposed policy. A common approach to this …