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Zero-shot text classifiers based on label descriptions embed an input text and a set of labels into the same space: measures such as cosine similarity can then be used to select the most similar label description to the input text as the…

计算与语言 · 计算机科学 2022-05-25 Angelo Basile , Marc Franco-Salvador , Paolo Rosso

Zero-Shot Learning (ZSL) aims to recognise unseen object classes, which are not observed during the training phase. The existing body of works on ZSL mostly relies on pretrained visual features and lacks the explicit attribute localisation…

计算机视觉与模式识别 · 计算机科学 2021-08-03 Faisal Alamri , Anjan Dutta

This paper proposes a new transformer-based framework to learn class-specific object localization maps as pseudo labels for weakly supervised semantic segmentation (WSSS). Inspired by the fact that the attended regions of the one-class…

计算机视觉与模式识别 · 计算机科学 2022-03-08 Lian Xu , Wanli Ouyang , Mohammed Bennamoun , Farid Boussaid , Dan Xu

Despite the significant progress made by transformer models in machine reading comprehension tasks, they still fall short in handling complex reasoning tasks due to the absence of explicit knowledge in the input sequence. To address this…

计算与语言 · 计算机科学 2024-01-17 Shima Foolad , Kourosh Kiani

While transformer-based Large Language Models (LLMs) theoretically support massive context windows, they suffer from severe performance degradation when processing long numerical sequences. We attribute this failure to the attention…

计算与语言 · 计算机科学 2026-04-10 Jie Sun , Yu Liu , Lu Han , Qiwen Deng , Xiang Shu , Yang Xiao , Xingyu Lu , Jun Zhou , Pengfei Liu , Lintao Ma , Jiancan Wu , Xiang Wang

The Transformer-based model have made significant strides in semantic matching tasks by capturing connections between phrase pairs. However, to assess the relevance of sentence pairs, it is insufficient to just examine the general…

计算与语言 · 计算机科学 2024-12-11 Bo Li , Di Liang , Zixin Zhang

Zero-shot Learners are models capable of predicting unseen classes. In this work, we propose a Zero-shot Learning approach for text categorization. Our method involves training model on a large corpus of sentences to learn the relationship…

计算与语言 · 计算机科学 2017-12-27 Pushpankar Kumar Pushp , Muktabh Mayank Srivastava

Amos et al. (2024) showed that the accuracy of Transformer models in sequence classification can be significantly improved by first pretraining with a masked token prediction objective without external data or augmentation, a procedure…

机器学习 · 计算机科学 2026-05-21 Omar Coser , Loredana Zollo , Paolo Soda , Antonio Orvieto

Linear attention methods offer Transformers $O(N)$ complexity but typically underperform standard softmax attention. We identify two fundamental limitations affecting these approaches: the restriction to convex combinations that only…

机器学习 · 计算机科学 2026-02-06 Jiecheng Lu , Xu Han , Yan Sun , Viresh Pati , Yubin Kim , Siddhartha Somani , Shihao Yang

Recently, large-scale pre-trained Vision and Language (VL) models have set a new state-of-the-art (SOTA) in zero-shot visual classification enabling open-vocabulary recognition of potentially unlimited set of categories defined as simple…

计算机视觉与模式识别 · 计算机科学 2023-10-24 M. Jehanzeb Mirza , Leonid Karlinsky , Wei Lin , Mateusz Kozinski , Horst Possegger , Rogerio Feris , Horst Bischof

Despite being the current de-facto models in most NLP tasks, transformers are often limited to short sequences due to their quadratic attention complexity on the number of tokens. Several attempts to address this issue were studied, either…

计算与语言 · 计算机科学 2023-07-19 Amine Abdaoui , Sourav Dutta

Few-shot and zero-shot text classification aim to recognize samples from novel classes with limited labeled samples or no labeled samples at all. While prevailing methods have shown promising performance via transferring knowledge from seen…

计算机视觉与模式识别 · 计算机科学 2024-05-07 Han Liu , Siyang Zhao , Xiaotong Zhang , Feng Zhang , Wei Wang , Fenglong Ma , Hongyang Chen , Hong Yu , Xianchao Zhang

Long-sequence transformers are designed to improve the representation of longer texts by language models and their performance on downstream document-level tasks. However, not much is understood about the quality of token-level predictions…

计算与语言 · 计算机科学 2023-03-15 Kamil Bujel , Andrew Caines , Helen Yannakoudakis , Marek Rei

While deep learning, including Convolutional Neural Networks (CNNs) and Vision Transformers (ViTs), has significantly advanced classification performance, its typical reliance on extensive annotated datasets presents a major obstacle in…

计算机视觉与模式识别 · 计算机科学 2025-09-24 Matheus Vinícius Todescato , Joel Luís Carbonera

Recently, zero-shot learning (ZSL) has received increasing interest. The key idea underpinning existing ZSL approaches is to exploit knowledge transfer via an intermediate-level semantic representation which is assumed to be shared between…

机器学习 · 计算机科学 2015-03-30 Yanwei Fu , Yongxin Yang , Timothy M. Hospedales , Tao Xiang , Shaogang Gong

Transformers have become an indispensable module for text generation models since their great success in machine translation. Previous works attribute the~success of transformers to the query-key-value dot-product attention, which provides…

计算与语言 · 计算机科学 2022-10-11 Lei Sha , Yuhang Song , Yordan Yordanov , Tommaso Salvatori , Thomas Lukasiewicz

While neural networks have shown impressive performance on large datasets, applying these models to tasks where little data is available remains a challenging problem. In this paper we propose to use feature transfer in a zero-shot…

计算与语言 · 计算机科学 2018-08-30 Javid Dadashkarimi , Alexander Fabbri , Sekhar Tatikonda , Dragomir R. Radev

Few-shot learning aims to build classifiers for new classes from a small number of labeled examples and is commonly facilitated by access to examples from a distinct set of 'base classes'. The difference in data distribution between the…

计算机视觉与模式识别 · 计算机科学 2021-04-26 Zitian Chen , Subhransu Maji , Erik Learned-Miller

In this paper we present a system that exploits different pre-trained Language Models for assigning domain labels to WordNet synsets without any kind of supervision. Furthermore, the system is not restricted to use a particular set of…

计算与语言 · 计算机科学 2021-02-01 Oscar Sainz , German Rigau

Due to high annotation costs making the best use of existing human-created training data is an important research direction. We, therefore, carry out a systematic evaluation of transferability of BERT-based neural ranking models across five…

信息检索 · 计算机科学 2021-11-23 Iurii Mokrii , Leonid Boytsov , Pavel Braslavski