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Aviv Regev

7 accepted papers

2025

Cross-modality Matching and Prediction of Perturbation Responses with Labeled Gromov-Wasserstein Optimal Transport

AISTATS 2025poster

It is now possible to conduct large scale perturbation screens with complex readout modalities, such as different molecular profiles or high content cell images. While these open the way for systematic dissection of causal cell circuits, integrating such data across screens to maximize our ability t…

Cited by 0SourceScholar
2025

Derivative-Free Guidance in Continuous and Discrete Diffusion Models with Soft Value-based Decoding

NeurIPS 2025poster

Diffusion models excel at capturing the natural design spaces of images, molecules, DNA, RNA, and protein sequences. However, rather than merely generating designs that are natural, we often aim to optimize downstream reward functions while preserving the naturalness of these design spaces. Existing…

Cited by 0SourcecodeScholar
2025

Fine-Tuning Discrete Diffusion Models via Reward Optimization with Applications to DNA and Protein Design

ICLR 2025poster

Recent studies have demonstrated the strong empirical performance of diffusion models on discrete sequences (i.e., discrete diffusion models) across domains such as natural language and biological sequence generation. For example, in the protein inverse folding task, where the goal is to generate a…

2025

Joint‑Embedding vs Reconstruction: Provable Benefits of Latent Space Prediction for Self‑Supervised Learning

NeurIPS 2025spotlight

Reconstruction and joint-embedding have emerged as two leading paradigms in Self‑Supervised Learning (SSL). Reconstruction methods focus on recovering the original sample from a different view in input space. On the other hand, joint-embedding methods align the representations of different views in…

Cited by 0SourceScholar
2025

Modeling Complex System Dynamics with Flow Matching Across Time and Conditions

ICLR 2025spotlight

Modeling the dynamics of complex real-world systems from temporal snapshot data is crucial for understanding phenomena such as gene regulation, climate change, and financial market fluctuations. Researchers have recently proposed a few methods based either on the Schroedinger Bridge or Flow Matching…

Cited by 1SourcePDFScholar
2025

Reward-Guided Iterative Refinement in Diffusion Models at Test-Time with Applications to Protein and DNA Design

ICML 2025poster

To fully leverage the capabilities of diffusion models, we are often interested in optimizing downstream reward functions during inference. While numerous algorithms for reward-guided generation have been recently proposed due to their significance, current approaches predominantly focus on single-s…

2022

Large-Scale Differentiable Causal Discovery of Factor Graphs

NeurIPS 2022accept

A common theme in causal inference is learning causal relationships between observed variables, also known as causal discovery. This is usually a daunting task, given the large number of candidate causal graphs and the combinatorial nature of the search space. Perhaps for this reason, most research…