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Masked Language Modeling (MLM) has been one of the most prominent approaches for pretraining bidirectional text encoders due to its simplicity and effectiveness. One notable concern about MLM is that the special $\texttt{[MASK]}$ symbol…

计算与语言 · 计算机科学 2024-03-19 Yu Meng , Jitin Krishnan , Sinong Wang , Qifan Wang , Yuning Mao , Han Fang , Marjan Ghazvininejad , Jiawei Han , Luke Zettlemoyer

Sampling is a promising bottom-up method for exposing what generative models have learned about language, but it remains unclear how to generate representative samples from popular masked language models (MLMs) like BERT. The MLM objective…

计算与语言 · 计算机科学 2022-03-21 Takateru Yamakoshi , Thomas L. Griffiths , Robert D. Hawkins

Out-of-distribution (OOD) detection is essential for reliable and trustworthy machine learning. Recent multi-modal OOD detection leverages textual information from in-distribution (ID) class names for visual OOD detection, yet it currently…

计算与语言 · 计算机科学 2023-10-13 Yi Dai , Hao Lang , Kaisheng Zeng , Fei Huang , Yongbin Li

Diffusion large language models (dLLMs) generate text by iteratively denoising masked token sequences. Although dLLMs can predict all masked positions in parallel within each step, the large number of denoising iterations still makes…

计算与语言 · 计算机科学 2026-05-18 Shengyin Sun , Yiming Li , Renxi Liu , Xinqi Li , Hui-Ling Zhen , Weizhe Lin , Chen Chen , Xianzhi Yu , Mingxuan Yuan , Chen Ma

The ability to remove features from the input of machine learning models is very important to understand and interpret model predictions. However, this is non-trivial for vision models since masking out parts of the input image typically…

计算机视觉与模式识别 · 计算机科学 2023-10-31 Sriram Balasubramanian , Soheil Feizi

Masked Diffusion Language Models generate sequences via iterative sampling that progressively unmasks tokens. However, they still recompute the attention and feed-forward blocks for every token position at every step -- even when many…

计算与语言 · 计算机科学 2026-05-13 Daisuke Oba , Danushka Bollegala , Masahiro Kaneko , Naoaki Okazaki

Real-world data deviating from the independent and identically distributed (i.i.d.) assumption of in-distribution training data poses security threats to deep networks, thus advancing out-of-distribution (OOD) detection algorithms.…

计算与语言 · 计算机科学 2024-10-31 Yiming Wang , Pei Zhang , Baosong Yang , Derek F. Wong , Zhuosheng Zhang , Rui Wang

Pre-training a language model and then fine-tuning it for downstream tasks has demonstrated state-of-the-art results for various NLP tasks. Pre-training is usually independent of the downstream task, and previous works have shown that this…

计算与语言 · 计算机科学 2022-11-28 Tanish Lad , Himanshu Maheshwari , Shreyas Kottukkal , Radhika Mamidi

Vision-and-Language Pre-training (VLP) improves model performance for downstream tasks that require image and text inputs. Current VLP approaches differ on (i) model architecture (especially image embedders), (ii) loss functions, and (iii)…

计算机视觉与模式识别 · 计算机科学 2021-09-28 Tarik Arici , Mehmet Saygin Seyfioglu , Tal Neiman , Yi Xu , Son Train , Trishul Chilimbi , Belinda Zeng , Ismail Tutar

Neural language models process sequences of words, but the mathematical operations inside them are insensitive to the order in which words appear. Positional encodings are the component added to remedy this. Despite their importance,…

机器学习 · 计算机科学 2026-04-08 Giansalvo Cirrincione

Diffusion language models (DLMs) generate text through iterative denoising, but inference requires full-sequence attention at every iteration, resulting in substantial redundant computation on masked tokens. Block-wise diffusion can reduce…

机器学习 · 计算机科学 2026-02-03 Fengrui Zuo , Zhiwei Ke , Yiming Liu , Wenqi Lou , Chao Wang , Xuehai Zhou

Large language models (LLMs) increasingly rely on chain-of-thought (CoT) reasoning to solve complex tasks. Yet ensuring that the reasoning trace both contributes to and faithfully reflects the processes underlying the model's final answer,…

计算与语言 · 计算机科学 2026-04-20 Max Henning Höth , Kristian Kersting , Björn Deiseroth , Letitia Parcalabescu

Discrete masked diffusion language models such as LLaDA generate text through iterative denoising, where mask tokens are progressively replaced with predicted tokens. LLaDA2.1 introduced a Token-to-Token (T2T) editing mechanism that…

计算与语言 · 计算机科学 2026-05-27 Lin Yao

Masked language models (MLMs) such as BERT and RoBERTa have revolutionized the field of Natural Language Understanding in the past few years. However, existing pre-trained MLMs often output an anisotropic distribution of token…

计算与语言 · 计算机科学 2022-04-29 Yixuan Su , Fangyu Liu , Zaiqiao Meng , Tian Lan , Lei Shu , Ehsan Shareghi , Nigel Collier

Masked Diffusion Models (MDMs) have emerged as a promising approach for generative modeling in discrete spaces. By generating sequences in any order and allowing for parallel decoding, they enable fast inference and strong performance on…

机器学习 · 计算机科学 2026-02-12 Jaeyeon Kim , Jonathan Geuter , David Alvarez-Melis , Sham Kakade , Sitan Chen

Large language models (LLMs) can learn from a few demonstrations provided at inference time. We study this in-context learning phenomenon through the lens of Gaussian Processes (GPs). We build controlled experiments where models observe…

机器学习 · 计算机科学 2026-02-13 Elif Akata , Konstantinos Voudouris , Vincent Fortuin , Eric Schulz

Test-time compute scaling, the practice of spending extra computation during inference via repeated sampling, search, or extended reasoning, has become a powerful lever for improving large language model performance. Yet deploying these…

机器学习 · 计算机科学 2026-04-17 Zhiyuan Zhai , Bingcong Li , Bingnan Xiao , Ming Li , Xin Wang

Logical reasoning is a critical benchmark for evaluating the capabilities of large language models (LLMs), as it reflects their ability to derive valid conclusions from given premises. While the combination of test-time scaling with…

计算与语言 · 计算机科学 2025-08-28 Ramya Keerthy Thatikonda , Wray Buntine , Ehsan Shareghi

Accurate terminology translation is crucial for ensuring the practicality and reliability of neural machine translation (NMT) systems. To address this, lexically constrained NMT explores various methods to ensure pre-specified words and…

计算与语言 · 计算机科学 2021-08-13 Gyubok Lee , Seongjun Yang , Edward Choi

Many learning-to-rank (LtR) algorithms focus on query-independent model, in which query and document do not lie in the same feature space, and the rankers rely on the feature ensemble about query-document pair instead of the similarity…

信息检索 · 计算机科学 2017-05-23 Yuxin Su , Irwin King , Michael Lyu