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Jessa Bekker

5 accepted papers

2026

ProbLog4Fairness: A Neurosymbolic Approach to Modeling and Mitigating Bias

AAAI 2026technical

Operationalizing definitions of fairness is difficult in practice, as multiple definitions can be incompatible while each being arguably desirable. Instead, it may be easier to directly describe algorithmic bias through ad-hoc assumptions specific to a particular real-world task, e.g., based on back

Cited by 0SourcePDFScholar
2025

Learning from biased positive-unlabeled data via threshold calibration

AISTATS 2025oral

Learning from positive and unlabeled data (PU learning) aims to train a binary classification model when only positive and unlabeled examples are available. Typically, learners assume that there is a labeling mechanism that determines which positive labels are observed. A particularly challenging s…

Cited by 0SourceScholar
2022

Unifying Knowledge Base Completion with PU Learning to Mitigate the Observation Bias

AAAI 2022technical

Methods for Knowledge Base Completion (KBC) reason about a knowledge base (KB) in order to derive new facts that should be included in the KB. This is challenging for two reasons. First, KBs only contain positive examples. This complicates model evaluation which needs both positive and negative exam…

2015

Tractable Learning for Complex Probability Queries

NeurIPS 2015poster

Tractable learning aims to learn probabilistic models where inference is guaranteed to be efficient. However, the particular class of queries that is tractable depends on the model and underlying representation. Usually this class is MPE or conditional probabilities $\Pr(\xs|\ys)$ for joint assignm…

Cited by 71SourcePDFScholar