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The softmax activation function plays a crucial role in the success of large language models (LLMs), particularly in the self-attention mechanism of the widely adopted Transformer architecture. However, the underlying learning dynamics that…

机器学习 · 计算机科学 2026-01-27 Yang Cao , Yingyu Liang , Zhenmei Shi , Zhao Song

The counterfactual token generation has been limited to perturbing only a single token in texts that are generally short and single sentences. These tokens are often associated with one of many sensitive attributes. With limited…

计算与语言 · 计算机科学 2022-02-10 Pranay Lohia

We propose a shared task on training instance selection for few-shot neural text generation. Large-scale pretrained language models have led to dramatic improvements in few-shot text generation. Nonetheless, almost all previous work simply…

计算与语言 · 计算机科学 2021-08-21 Ernie Chang , Xiaoyu Shen , Alex Marin , Vera Demberg

The computational cost of training with softmax cross entropy loss grows linearly with the number of classes. For the settings where a large number of classes are involved, a common method to speed up training is to sample a subset of…

机器学习 · 计算机科学 2020-01-01 Ankit Singh Rawat , Jiecao Chen , Felix Yu , Ananda Theertha Suresh , Sanjiv Kumar

Recently, diffusion models have emerged as a new paradigm for generative models. Despite the success in domains using continuous signals such as vision and audio, adapting diffusion models to natural language is under-explored due to the…

计算与语言 · 计算机科学 2023-02-15 Shansan Gong , Mukai Li , Jiangtao Feng , Zhiyong Wu , Lingpeng Kong

Although generation-based dialogue systems have been widely researched, the response generations by most existing systems have very low diversities. The most likely reason for this problem is Maximum Likelihood Estimation (MLE) with Softmax…

计算与语言 · 计算机科学 2018-11-22 Ryo Nakamura , Katsuhito Sudoh , Koichiro Yoshino , Satoshi Nakamura

Generating 3D human motions from text is a challenging yet valuable task. The key aspects of this task are ensuring text-motion consistency and achieving generation diversity. Although recent advancements have enabled the generation of…

计算机视觉与模式识别 · 计算机科学 2025-08-29 Zheng Qin , Yabing Wang , Minghui Yang , Sanping Zhou , Ming Yang , Le Wang

Large Language Models (LLMs) are widely deployed in real-world applications, yet little is known about their training dynamics at the token level. Evaluation typically relies on aggregated training loss, measured at the batch level, which…

计算与语言 · 计算机科学 2024-10-17 Andrea Pinto , Tomer Galanti , Randall Balestriero

Recent advances in text-to-image diffusion models have enabled the generation of diverse and high-quality images. While impressive, the images often fall short of depicting subtle details and are susceptible to errors due to ambiguity in…

计算机视觉与模式识别 · 计算机科学 2025-01-13 Idan Schwartz , Vésteinn Snæbjarnarson , Hila Chefer , Ryan Cotterell , Serge Belongie , Lior Wolf , Sagie Benaim

There exists a token imbalance phenomenon in natural language as different tokens appear with different frequencies, which leads to different learning difficulties for tokens in Neural Machine Translation (NMT). The vanilla NMT model…

计算与语言 · 计算机科学 2020-10-12 Shuhao Gu , Jinchao Zhang , Fandong Meng , Yang Feng , Wanying Xie , Jie Zhou , Dong Yu

How far are we really from automatically generating neural networks? While neural network weight generation shows promise, current approaches struggle with generalization to unseen tasks and practical application exploration. To address…

机器学习 · 计算机科学 2025-08-20 Bowen Tian , Wenshuo Chen , Zexi Li , Songning Lai , Jiemin Wu , Yutao Yue

Can continuous diffusion models bring the same performance breakthrough on natural language they did for image generation? To circumvent the discrete nature of text data, we can simply project tokens in a continuous space of embeddings, as…

Enabling humanoid robots to synthesize complex, physically coherent motions from natural language commands is a cornerstone of autonomous robotics and human-robot interaction. While diffusion models have shown promise in this text-to-motion…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Wenshuo Chen , Haozhe Jia , Songning Lai , Lei Wang , Yuqi Lin , Hongru Xiao , Lijie Hu , Yutao Yue

Standard decoding strategies for text generation, including top-k, nucleus sampling, and contrastive search, select tokens based on likelihood, restricting selection to high-probability regions. Human language production operates…

计算与语言 · 计算机科学 2026-03-20 Esteban Garces Arias , Nurzhan Sapargali , Christian Heumann , Matthias Aßenmacher

Deep-learning models for language generation tasks tend to produce repetitive output. Various methods have been proposed to encourage lexical diversity during decoding, but this often comes at a cost to the perceived fluency and adequacy of…

计算与语言 · 计算机科学 2021-09-22 Giulio Zhou , Gerasimos Lampouras

Neural machine translation (NMT) models are typically trained using a softmax cross-entropy loss where the softmax distribution is compared against smoothed gold labels. In low-resource scenarios, NMT models tend to over-fit because the…

计算与语言 · 计算机科学 2020-09-22 Raj Dabre , Atsushi Fujita

Recent neural approaches to data-to-text generation have mostly focused on improving content fidelity while lacking explicit control over writing styles (e.g., word choices, sentence structures). More traditional systems use templates to…

计算与语言 · 计算机科学 2020-10-12 Shuai Lin , Wentao Wang , Zichao Yang , Xiaodan Liang , Frank F. Xu , Eric Xing , Zhiting Hu

Token-based masked generative models are gaining popularity for their fast inference time with parallel decoding. While recent token-based approaches achieve competitive performance to diffusion-based models, their generation performance is…

机器学习 · 计算机科学 2023-04-05 Jaewoong Lee , Sangwon Jang , Jaehyeong Jo , Jaehong Yoon , Yunji Kim , Jin-Hwa Kim , Jung-Woo Ha , Sung Ju Hwang

Statistical language models are central to many applications that use semantics. Recurrent Neural Networks (RNN) are known to produce state of the art results for language modelling, outperforming their traditional n-gram counterparts in…

计算与语言 · 计算机科学 2016-02-05 Anantharaman Palacode Narayana Iyer

Is the output softmax layer, which is adopted by most language models (LMs), always the best way to compute the next word probability? Given so many attention layers in a modern transformer-based LM, are the pointer networks redundant…

计算与语言 · 计算机科学 2023-05-23 Haw-Shiuan Chang , Zonghai Yao , Alolika Gon , Hong Yu , Andrew McCallum