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The Transformer model is widely used in natural language processing for sentence representation. However, the previous Transformer-based models focus on function words that have limited meaning in most cases and could merely extract…

计算与语言 · 计算机科学 2021-07-05 Yu Shi

We show that off-the-shelf text-based Transformers, with no additional training, can perform few-shot in-context visual imitation learning, mapping visual observations to action sequences that emulate the demonstrator's behaviour. We…

机器人学 · 计算机科学 2024-10-21 Norman Di Palo , Edward Johns

Token-level attention tuning, a class of training-free methods including Post-hoc Attention Steering (PASTA) and Attention Calibration (ACT), has emerged as a promising approach for improving frozen LLMs via interpretable interventions.…

计算与语言 · 计算机科学 2026-02-12 Feijiang Han , Xiaodong Yu , Jianheng Tang , Delip Rao , Weihua Du , Lyle Ungar

In this paper, we present a novel approach to adapt a sequence-to-sequence Transformer-Transducer ASR system to the keyword spotting (KWS) task. We achieve this by replacing the keyword in the text transcription with a special token <kw>…

音频与语音处理 · 电气工程与系统科学 2022-11-15 Beltrán Labrador , Guanlong Zhao , Ignacio López Moreno , Angelo Scorza Scarpati , Liam Fowl , Quan Wang

The quadratic computation complexity of self-attention has been a persistent challenge when applying Transformer models to vision tasks. Linear attention, on the other hand, offers a much more efficient alternative with its linear…

计算机视觉与模式识别 · 计算机科学 2023-09-04 Dongchen Han , Xuran Pan , Yizeng Han , Shiji Song , Gao Huang

A variety of contextualised language models have been proposed in the NLP community, which are trained on diverse corpora to produce numerous Neural Language Models (NLMs). However, different NLMs have reported different levels of…

计算与语言 · 计算机科学 2022-04-19 Keigo Takahashi , Danushka Bollegala

Recent progress on parse tree encoder for sentence representation learning is notable. However, these works mainly encode tree structures recursively, which is not conducive to parallelization. On the other hand, these works rarely take…

计算与语言 · 计算机科学 2022-05-10 Junhua Ma , Jiajun Li , Yuxuan Liu , Shangbo Zhou , Xue Li

Recent mask proposal models have significantly improved the performance of zero-shot semantic segmentation. However, the use of a `background' embedding during training in these methods is problematic as the resulting model tends to…

计算机视觉与模式识别 · 计算机科学 2023-01-19 Son Duy Dao , Hengcan Shi , Dinh Phung , Jianfei Cai

In intent detection tasks, leveraging meaningful semantic information from intent labels can be particularly beneficial for few-shot scenarios. However, existing few-shot intent detection methods either ignore the intent labels, (e.g.…

计算与语言 · 计算机科学 2023-09-11 Jiangshu Du , Congying Xia , Wenpeng Yin , Tingting Liang , Philip S. Yu

We study conditions under which transformers using soft attention can simulate hard attention, that is, effectively focus all attention on a subset of positions. First, we examine several subclasses of languages recognized by hard-attention…

机器学习 · 计算机科学 2025-06-27 Andy Yang , Lena Strobl , David Chiang , Dana Angluin

The quadratic complexity of the attention module makes it gradually become the bulk of compute in Transformer-based LLMs during generation. Moreover, the excessive key-value cache that arises when dealing with long inputs also brings severe…

计算与语言 · 计算机科学 2023-10-17 Siyu Ren , Qi Jia , Kenny Q. Zhu

This paper presents an end-to-end semi-supervised object detection approach, in contrast to previous more complex multi-stage methods. The end-to-end training gradually improves pseudo label qualities during the curriculum, and the more and…

计算机视觉与模式识别 · 计算机科学 2021-08-09 Mengde Xu , Zheng Zhang , Han Hu , Jianfeng Wang , Lijuan Wang , Fangyun Wei , Xiang Bai , Zicheng Liu

One of important areas of machine learning research is zero-shot learning. It is applied when properly labeled training data set is not available. A number of zero-shot algorithms have been proposed and experimented with. However, none of…

机器学习 · 计算机科学 2022-03-30 Elie Saad , Marcin Paprzycki , Maria Ganzha

Sentence compression reduces the length of text by removing non-essential content while preserving important facts and grammaticality. Unsupervised objective driven methods for sentence compression can be used to create customized models…

计算与语言 · 计算机科学 2022-05-18 Demian Gholipour Ghalandari , Chris Hokamp , Georgiana Ifrim

Transfer learning is a powerful way to adapt existing deep learning models to new emerging use-cases in remote sensing. Starting from a neural network already trained for semantic segmentation, we propose to modify its label space to…

计算机视觉与模式识别 · 计算机科学 2022-06-16 Gaston Lenczner , Adrien Chan-Hon-Tong , Nicola Luminari , Bertrand Le Saux

We present an attention-based ranking framework for learning to order sentences given a paragraph. Our framework is built on a bidirectional sentence encoder and a self-attention based transformer network to obtain an input order invariant…

计算与语言 · 计算机科学 2020-01-03 Pawan Kumar , Dhanajit Brahma , Harish Karnick , Piyush Rai

Transformer-based models have dominated natural language processing and other areas in the last few years due to their superior (zero-shot) performance on benchmark datasets. However, these models are poorly understood due to their…

计算机视觉与模式识别 · 计算机科学 2024-02-14 Shaeke Salman , Md Montasir Bin Shams , Xiuwen Liu , Lingjiong Zhu

Recent works show we can linearize large language models (LLMs) -- swapping the quadratic attentions of popular Transformer-based LLMs with subquadratic analogs, such as linear attention -- avoiding the expensive pretraining costs. However,…

Transformers, adapted from natural language processing, are emerging as a leading approach for graph representation learning. Contemporary graph transformers often treat nodes or edges as separate tokens. This approach leads to…

机器学习 · 计算机科学 2023-10-04 Zihan Pengmei , Zimu Li , Chih-chan Tien , Risi Kondor , Aaron R. Dinner

Most NER methods rely on extensive labeled data for model training, which struggles in the low-resource scenarios with limited training data. Existing dominant approaches usually suffer from the challenge that the target domain has…

计算与语言 · 计算机科学 2023-01-26 Xiang Chen , Lei Li , Shumin Deng , Chuanqi Tan , Changliang Xu , Fei Huang , Luo Si , Huajun Chen , Ningyu Zhang