activity
20232026
most citedA Taxonomy of Ambiguity Types for NLP

3 citations · 9 across the 10 of their papers we have counts for

collaborators

11 papers

cs.CL2026

Are you going to finish that? A Practical Study of the Partial Token Problem

Hao Xu, Alisa Liu, Jonathan Hayase +2

Language models (LMs) are trained over sequences of tokens, whereas users interact with LMs via text. This mismatch gives rise to the partial token problem, which occurs when a use…

cs.CL2025

Broken Tokens? Your Language Model can Secretly Handle Non-Canonical Tokenizations

Brian Siyuan Zheng, Alisa Liu, Orevaoghene Ahia +3

Modern tokenizers employ deterministic algorithms to map text into a single "canonical" token sequence, yet the same string can be encoded as many non-canonical tokenizations using…

cs.CL2025

Sampling from Your Language Model One Byte at a Time

Jonathan Hayase, Alisa Liu, Noah A. Smith +1

Tokenization is used almost universally by modern language models, enabling efficient text representation using multi-byte or multi-character tokens. However, prior work has shown…

cs.LG2025

LLAMAPIE: Proactive In-Ear Conversation Assistants

Tuochao Chen, Nicholas Batchelder, Alisa Liu +2

We introduce LlamaPIE, the first real-time proactive assistant designed to enhance human conversations through discreet, concise guidance delivered via hearable devices. Unlike tra…

cs.CL2025

SuperBPE: Space Travel for Language Models

Alisa Liu, Jonathan Hayase, Valentin Hofmann +3

The assumption across nearly all language model (LM) tokenization schemes is that tokens should be subwords, i.e., contained within word boundaries. While providing a seemingly rea…

cs.CL2024★ 1 cited

Does Liking Yellow Imply Driving a School Bus? Semantic Leakage in Language Models

Hila Gonen, Terra Blevins, Alisa Liu +2

Despite their wide adoption, the biases and unintended behaviors of language models remain poorly understood. In this paper, we identify and characterize a phenomenon never discuss…

cs.CL2024★ 1 cited

Data Mixture Inference: What do BPE Tokenizers Reveal about their Training Data?

Jonathan Hayase, Alisa Liu, Yejin Choi +2

The pretraining data of today's strongest language models is opaque; in particular, little is known about the proportions of various domains or languages represented. In this work,…

cs.LG2024★ 1 cited

Decoding-Time Language Model Alignment with Multiple Objectives

Ruizhe Shi, Yifang Chen, Yushi Hu +4

Aligning language models (LMs) to human preferences has emerged as a critical pursuit, enabling these models to better serve diverse user needs. Existing methods primarily focus on…

cs.CL2024★ 3 cited

A Taxonomy of Ambiguity Types for NLP

Margaret Y. Li, Alisa Liu, Zhaofeng Wu +1

Ambiguity is an critical component of language that allows for more effective communication between speakers, but is often ignored in NLP. Recent work suggests that NLP systems may…

cs.CL2024★ 3 cited

Tuning Language Models by Proxy

Alisa Liu, Xiaochuang Han, Yizhong Wang +3

Despite the general capabilities of large pretrained language models, they consistently benefit from further adaptation to better achieve desired behaviors. However, tuning these m…

cs.CL2023

That was the last straw, we need more: Are Translation Systems Sensitive to Disambiguating Context?

Jaechan Lee, Alisa Liu, Orevaoghene Ahia +2

The translation of ambiguous text presents a challenge for translation systems, as it requires using the surrounding context to disambiguate the intended meaning as much as possibl…