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Volume 326: Geometry-grounded Representation Learning and Generative Modeling Workshop (GRaM) at ICLR 2026, 26 April 2026, Riocentro Convention and Event Center, Rio de Janeiro, Brazil

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Editors: Alison Pouplin, Sharvaree Vadgama, Erik Bekkers, Sékou-Oumar Kaba, Hannah Lawrence, Manuel Lecha, Elizabeth Baker, Julian Suk, Robin Walters, Jakub Tomczak, Stefanie Jegelka

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Preface to GRaM: the Second Workshop on Geometry-grounded Representation Learning and Generative Modeling

Alison Pouplin, Sharvaree Vadgama, Erik Bekkers, Sékou-Oumar Kaba, Hannah Lawrence, Manuel Lecha, Elizabeth Baker, Julian Suk, Robin Walters, Jakub Tomczak, Stefanie Jegelka; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:1-4

Algebraic Priors for Approximately Equivariant Networks

Riccardo Ali, Pietro Liò, Jamie Vicary; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:5-31

Geometry-Grounded Flow Matching on Compact Manifolds

Ali Baheri; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:32-44

The Affine Divergence: Aligning Activation Updates Beyond Normalisation

George Bird; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:45-74

Pawsterior: Variational Flow Matching for Structured Simulation-Based Inference

Jorge Carrasco-Pollo, Floor Eijkelboom, Jan-Willem van de Meent; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:75-87

Towards Text-Line Segmentation of Historical Documents Using Graph Neural Networks

Kartik Chincholikar, Kaushik Gopalan, Mihir Hasabnis; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:88-108

Neurodiversity Meets Colors: Does Position Awareness Destroy Generalization in Brain Graph Learning?

Matheo Angelo Pereira Dantas, Caterina Graziani, Leo Sampaio Ferraz Ribeiro, Andre Carlos Ponce de Leon Ferreira De Carvalho; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:109-134

On the Geometry of Analogical Reasoning in Latent Space

Oleg Dats; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:135-144

k-Maximum Inner Product Attention for Graph Transformers and the Expressive Power of GraphGPS

Jonas De Schouwer, Haitz Sáez de Ocáriz Borde, Xiaowen Dong; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:145-183

ReCycle Net: Cycle-Aware, Feature-Free GNN For Community Detection

Caleb Fernandes, Behnaz Moradi Jamei; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:184-200

Sparse Concept Anchoring for Interpretable and Controllable Neural Representations

Sandy Fraser, Patryk Wielopolski; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:201-226

Laplacian Flows for Policy Learning from Experience

Xingrui Gu, Chuyi Jiang; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:227-261

Mutual Information and Task-Relevant Latent Dimensionality

Paarth Gulati, Eslam Abdelaleem, Audrey Sederberg, Ilya Nemenman; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:262-293

Can Graph Foundation Models Generalize Over Architecture?

Benjamin Gutteridge, Michael Bronstein, Xiaowen Dong; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:294-320

Rigid Invariant Sliced Wasserstein via Independent Embeddings

Zakk Heile, Peilin He, Jayson Tran, Alice Wang, Shrikant Chand; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:321-355

Semantic-Anchored, Class Variance-Optimized Clustering for Robust Semi-Supervised Few-Shot Learning

Souvik Maji, Rhythm Baghel, Pratik Mazumder; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:356-386

GSVD for Geometry-Grounded Dataset Comparison: An Alignment Angle Is All You Need

Eduarda Marques, Arthur Sobrinho, João Paixão, Daniel Menasche, Heudson Mirandola; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:387-397

Categorical Trace Loop Networks for Gauge-Randomized Holonomy Regression

Yoshihiro Maruyama; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:398-415

E$(n)$-Equivariant Spherical Decision Surfaces

Pavlo Melnyk, Michael Felsberg, Kostas Daniilidis; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:416-432

Effective Resistance Rewiring: A Simple Topological Correction for Over-Squashing

Bertran Miquel-Oliver, Manel Gil-Sorribes, Victor Guallar, Alexis Molina; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:433-455

Lift me up: the impact of liftings on hypergraph neural networks

Marco Montagna, Simone Scardapane, Lev Telyatnikov; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:456-474

Tensor-SAE: Structured Sparse Autoencoders for Interpretable and Efficient Image Representations

Tanush Ajay Shastry, Soham Batra, Laksh Patel, Aarav Lala, Andrew Bae, Siddarth Karuturi, Mithil Shah, Neel N Shanbhag; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:475-488

Do Coresets, Pruning, and Quantization Preserve Neural Network Representations?

Tushar Shinde, Avinash Kumar Sharma; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:489-496

A Geometric Perspective on the Difficulties of Learning GNN-based SAT Solvers

Geri Skenderi; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:497-518

CLERF: Contrastive LEaRning for Full-Range Head Pose Estimation

Ting-Ruen Wei, Huei-Chung Hu, Haowei Liu, Xuyang Wu, Yi Fang, Hsin-Tai Wu; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:519-532

The GRaM 2026 Competition and Warped-IFW Dataset

Julian Suk, Gavin Seegoolam, Alison Pouplin, Paul Tiwald, Ivan Bioli, Vedant Bonde, Rémi Bourgerie, Oscar Breiner, Thomas Capelle, Huaguan Chen, Alex Colagrande, Aakashnag Davuluri, Vinay Edula, Vivekananda Edula, Bernhard Einberger, Massimiliano Ghiotto, Francesca Maria Greco, Ankit Grover, Justin Hodges, Theofanis Ifaistos, Sahib Julka, Anthony Kalaydjian, Samet Kocbay, Aakash Kotha, Maximilian Leutschafft, Ning Lin, Morgan McGuire, Vlad Medvedev, Mikel Mendibe, Deepthi Ravipati, Jorge Sarrato-Alós, Harshit Singh, Rajeev Kumar Singh, Joshua Stiller, Vihan Tiwari, S. Viswanathan, Luis J. Walter, Andy Zhang; Proceedings of GRaM: the Second Edition of the Workshop on Geometry-grounded Representation Learning and Generative Modeling, PMLR 326:533-602

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