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Stratis Gavves

7 accepted papers

2026

Distributional Vision-Language Alignment by Cauchy-Schwarz Divergence

ICLR 2026poster

Vision-language alignment is crucial for various downstream tasks such as cross-modal generation and retrieval. Previous multimodal approaches like CLIP utilize InfoNCE to maximize mutual information, primarily aligning pairwise samples across modalities while overlooking distributional differences.…

Cited by 0SourceScholar
2025

Object-centric Video Question Answering with Visual Grounding and Referring

ICCV 2025poster

Video Large Language Models (VideoLLMs) have recently demonstrated remarkable progress in general video understanding. However, existing models primarily focus on high-level comprehension and are limited to text-only responses, restricting the flexibility for object-centric, multi-round interactions…

Cited by 14SourcePDFScholar
2024

Ai-sampler: Adversarial Learning of Markov kernels with involutive maps

ICML 2024poster

Markov chain Monte Carlo methods have become popular in statistics as versatile techniques to sample from complicated probability distributions. In this work, we propose a method to parameterize and train transition kernels of Markov chains to achieve efficient sampling and good mixing. This trainin…

2024

Amortized Equation Discovery in Hybrid Dynamical Systems

ICML 2024poster

Hybrid dynamical systems are prevalent in science and engineering to express complex systems with continuous and discrete states. To learn laws of systems, all previous methods for equation discovery in hybrid systems follow a two-stage paradigm, i.e. they first group time series into small cluster…

2024

Mechanistic Neural Networks for Scientific Machine Learning

ICML 2024poster

This paper presents *Mechanistic Neural Networks*, a neural network design for machine learning applications in the sciences. It incorporates a new *Mechanistic Block* in standard architectures to explicitly learn governing differential equations as representations, revealing the underlying dynamics…

2024

Space-Time Continuous PDE Forecasting using Equivariant Neural Fields

NeurIPS 2024poster

Recently, Conditional Neural Fields (NeFs) have emerged as a powerful modelling paradigm for PDEs, by learning solutions as flows in the latent space of the Conditional NeF. Although benefiting from favourable properties of NeFs such as grid-agnosticity and space-time-continuous dynamics modelling,…

Cited by 7SourcePDFScholar
2022

CITRIS: Causal Identifiability from Temporal Intervened Sequences

ICML 2022spotlight

Understanding the latent causal factors of a dynamical system from visual observations is considered a crucial step towards agents reasoning in complex environments. In this paper, we propose CITRIS, a variational autoencoder framework that learns causal representations from temporal sequences of im…