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Andreas Grivas

3 accepted papers

2026

Fast and Expressive Multi-Byte Prediction with Probabilistic Circuits

ICML 2026poster

Multi-token prediction (MTP) is a prominent strategy to significantly speed up generation in large language models (LLMs), especially in byte-level LLMs, which are tokeniser-free but prohibitively slow. However, existing MTP methods often sacrifice expressiveness by assuming independence between fut…

Cited by 0SourceScholar
2024

Taming the Sigmoid Bottleneck: Provably Argmaxable Sparse Multi-Label Classification

AAAI 2024technical

Sigmoid output layers are widely used in multi-label classification (MLC) tasks, in which multiple labels can be assigned to any input. In many practical MLC tasks, the number of possible labels is in the thousands, often exceeding the number of input features and resulting in a low-rank output laye…

2022

Low-Rank Softmax Can Have Unargmaxable Classes in Theory but Rarely in Practice

ACL 2022long

Classifiers in natural language processing (NLP) often have a large number of output classes. For example, neural language models (LMs) and machine translation (MT) models both predict tokens from a vocabulary of thousands. The Softmax output layer of these models typically receives as input a dense…