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Parnian Shahkar

5 accepted papers

2025

On the Existence and Complexity of Core-Stable Data Exchanges

NeurIPS 2025poster

The rapid growth of data-driven technologies and the emergence of various data-sharing paradigms have underscored the need for efficient and stable data exchange protocols. In any such exchange, agents must carefully balance the benefit of acquiring valuable data against the cost of sharing their ow…

Cited by 0SourceScholar
2025

The Complexity of Finding Local Optima in Contrastive Learning

NeurIPS 2025poster

Contrastive learning is a powerful technique for discovering meaningful data representations by optimizing objectives based on $\textit{contrastive information}$, often given as a set of weighted triplets $\{(x_i, y_i^+, z_{i}^-)\}_{i = 1}^m$ indicating that an "anchor" $x_i$ is more similar to a "p…

Cited by 0SourceScholar
2025

You Get What You Give: Reciprocally Fair Federated Learning

ICML 2025poster

Federated learning (FL) is a popular collaborative learning paradigm, whereby agents with individual datasets can jointly train an ML model. While higher data sharing improves model accuracy and leads to higher payoffs, it also raises costs associated with data acquisition or loss of privacy, causi…

Cited by 1SourcePDFScholar