← Search

Joao Monteiro

13 accepted papers

2026

Amortized Maximum Inner Product Search with Learned Support Functions

ICML 2026poster

Maximum inner product search (MIPS) is a crucial subroutine in machine learning, requiring identification of database vectors that align most strongly with a given query. We propose amortized MIPS: a learning-based approach that trains neural networks to directly predict MIPS solutions, amortizing t…

Cited by 0SourceScholar
2026

GraphOmni: A Comprehensive and Extensible Benchmark Framework for Large Language Models on Graph-theoretic Tasks

ICLR 2026poster

This paper introduces GraphOmni, a comprehensive benchmark designed to evaluate the reasoning capabilities of LLMs on graph-theoretic tasks articulated in natural language. GraphOmni spans diverse graph types, serialization formats, and prompting schemes, substantially extending upon prior efforts i…

Cited by 0SourcecodeScholar
2026

Learning Unmasking Policies for Diffusion Language Models

ICML 2026oral

Diffusion (Large) Language Models (dLLMs) now match the downstream performance of their autoregressive counterparts on many tasks, while holding the promise of being more efficient during inference. One critical design aspect of dLLMs is the \textit{sampling procedure} that selects which tokens to u…

Cited by 0SourceScholar
2026

MoSE: Hierarchical Self-Distillation Enhances Early Layer Embeddings

AAAI 2026technical

Deploying language models often requires navigating accuracy vs. performance trade-offs to meet latency constraints while preserving utility. Traditional model distillation reduces size but incurs substantial costs through training separate models. We introduce ModularStarEncoder (MoSE), a 1-billion

Cited by 0SourcePDFScholar
2025

BigDocs: An Open Dataset for Training Multimodal Models on Document and Code Tasks

ICLR 2025poster

Multimodal AI has the potential to significantly enhance document-understanding tasks, such as processing receipts, understanding workflows, extracting data from documents, and summarizing reports. Code generation tasks that require long-structured outputs can also be enhanced by multimodality. Desp…

Cited by 0SourcePDFScholar
2024

Expecting The Unexpected: Towards Broad Out-Of-Distribution Detection

NeurIPS 2024poster

Deployed machine learning systems require some mechanism to detect out-of-distribution (OOD) inputs. Existing research mainly focuses on one type of distribution shift: detecting samples from novel classes, absent from the training set. However, real-world systems encounter a broad variety of anomal…

2024

RepLiQA: A Question-Answering Dataset for Benchmarking LLMs on Unseen Reference Content

NeurIPS 2024poster

Large Language Models (LLMs) are trained on vast amounts of data, most of which is automatically scraped from the internet. This data includes encyclopedic documents that harbor a vast amount of general knowledge (*e.g.*, Wikipedia) but also potentially overlap with benchmark datasets used for evalu…

2024

XC-Cache: Cross-Attending to Cached Context for Efficient LLM Inference

EMNLP 2024finding

Prompts are often employed to condition decoder-only language model generation on reference information. Just-in-time processing of a context is inefficient due to the quadratic cost of self-attention operations, and caching is desirable. However, caching transformer states can easily require almost…

Cited by 7SourcePDFScholar
2023

CADet: Fully Self-Supervised Out-Of-Distribution Detection With Contrastive Learning

NeurIPS 2023poster

Handling out-of-distribution (OOD) samples has become a major stake in the real-world deployment of machine learning systems. This work explores the use of self-supervised contrastive learning to the simultaneous detection of two types of OOD samples: unseen classes and adversarial perturbations. Fi…

2023

Constraining Representations Yields Models That Know What They Don't Know

ICLR 2023poster

A well-known failure mode of neural networks is that they may confidently return erroneous predictions. Such unsafe behaviour is particularly frequent when the use case slightly differs from the training context, and/or in the presence of an adversary. This work presents a novel direction to address…

Cited by 1SourcePDFScholar
2023

Group Robust Classification Without Any Group Information

NeurIPS 2023poster

Empirical risk minimization (ERM) is sensitive to spurious correlations present in training data, which poses a significant risk when deploying systems trained under this paradigm in high-stake applications. While the existing literature focuses on maximizing group-balanced or worst-group accuracy,…

2020

An end-to-end approach for the verification problem: learning the right distance

ICML 2020poster

In this contribution, we augment the metric learning setting by introducing a parametric pseudo-distance, trained jointly with the encoder. Several interpretations are thus drawn for the learned distance-like model’s output. We first show it approximates a likelihood ratio which can be used for hypo…

2019

Multi-objective training of Generative Adversarial Networks with multiple discriminators

ICML 2019oral

Recent literature has demonstrated promising results for training Generative Adversarial Networks by employing a set of discriminators, in contrast to the traditional game involving one generator against a single adversary. Such methods perform single-objective optimization on some simple consolidat…

Cited by 89SourcePDFScholar