← Search

Mircea Petrache

8 accepted papers

2026

On Universality of Deep Equivariant Networks

ICLR 2026poster

Universality results for equivariant neural networks remain rare. Those that do exist typically hold only in restrictive settings: either they rely on regular or higher-order tensor representations, leading to impractically high-dimensional hidden spaces, or they target specialized architectures, of…

Cited by 0SourceScholar
2026

Recurrent Equivariant Constraint Modulation: Learning Per-Layer Symmetry Relaxation from Data

ICML 2026spotlight

Equivariant neural networks exploit underlying task symmetries to improve generalization, but strict equivariance constraints can induce more complex optimization dynamics that can hinder learning. Prior work addresses these limitations by relaxing strict equivariance during training, but typically …

Cited by 0SourceScholar
2025

A compressive-expressive communication framework for compositional representations

NeurIPS 2025poster

Compositionality in knowledge and language—the ability to represent complex concepts as a combination of simpler ones—is a hallmark of human cognition and communication. Despite recent advances, deep neural networks still struggle to acquire this property reliably. Neural models for emergent communi…

Cited by 0SourceScholar
2025

Symmetry-Based Structured Matrices for Efficient Approximately Equivariant Networks

AISTATS 2025oral

There has been much recent interest in designing neural networks (NNs) with relaxed equivariance, which interpolate between exact equivariance and full flexibility for consistent performance gains. In a separate line of work, structured parameter matrices with low displacement rank (LDR)---which per…

Cited by 0SourcecodeScholar
2024

A Class of Topological Pseudodistances for Fast Comparison of Persistence Diagrams

AAAI 2024technical

Persistence diagrams (PD)s play a central role in topological data analysis, and are used in an ever increasing variety of applications. The comparison of PD data requires computing distances among large sets of PDs, with metrics which are accurate, theoretically sound, and fast to compute. Especial…

2024

Fisher Flow Matching for Generative Modeling over Discrete Data

NeurIPS 2024poster

Generative modeling over discrete data has recently seen numerous success stories, with applications spanning language modeling, biological sequence design, and graph-structured molecular data. The predominant generative modeling paradigm for discrete data is still autoregressive, with more recent a…

Cited by 15SourcePDFScholar
2023

Approximation-Generalization Trade-offs under (Approximate) Group Equivariance

NeurIPS 2023poster

The explicit incorporation of task-specific inductive biases through symmetry has emerged as a general design precept in the development of high-performance machine learning models. For example, group equivariant neural networks have demonstrated impressive performance across various domains and app…

Cited by 22SourcePDFScholar
2023

Three Iterations of (d − 1)-WL Test Distinguish Non Isometric Clouds of d-dimensional Points

NeurIPS 2023poster

The Weisfeiler-Lehman (WL) test is a fundamental iterative algorithm for checking the isomorphism of graphs. It has also been observed that it underlies the design of several graph neural network architectures, whose capabilities and performance can be understood in terms of the expressive power of…

Cited by 12SourcePDFScholar