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相关论文: Distinguish Before Answer: Generating Contrastive …

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The sequential process of conceptualization and instantiation is essential to generalizable commonsense reasoning as it allows the application of existing knowledge to unfamiliar scenarios. However, existing works tend to undervalue the…

We focus on contrastive methods for self-supervised video representation learning. A common paradigm in contrastive learning is to construct positive pairs by sampling different data views for the same instance, with different data…

计算机视觉与模式识别 · 计算机科学 2021-08-23 Chen Sun , Arsha Nagrani , Yonglong Tian , Cordelia Schmid

Decoding from the output distributions of large language models to produce high-quality text is a complex challenge in language modeling. Various approaches, such as beam search, sampling with temperature, $k-$sampling, nucleus…

计算与语言 · 计算机科学 2024-10-22 Esteban Garces Arias , Julian Rodemann , Meimingwei Li , Christian Heumann , Matthias Aßenmacher

The central challenge of reasoning-intensive retrieval lies in identifying implicitreasoning relationships between queries and documents, rather than superficial se-mantic or lexical similarity. The contrastive learning paradigm is…

信息检索 · 计算机科学 2026-03-19 Guangzhi Wang , Yinghao Jiao , Zhi Liu

Representation learning has significantly been developed with the advance of contrastive learning methods. Most of those methods have benefited from various data augmentations that are carefully designated to maintain their identities so…

计算机视觉与模式识别 · 计算机科学 2022-01-24 Xiao Wang , Guo-Jun Qi

We propose reCSE, a self supervised contrastive learning sentence representation framework based on feature reshaping. This framework is different from the current advanced models that use discrete data augmentation methods, but instead…

计算与语言 · 计算机科学 2024-08-27 Fufangchen Zhao , Jian Gao , Danfeng Yan

Contrastive learning has moved the state of the art for many tasks in computer vision and information retrieval in recent years. This poster is the first work that applies supervised contrastive learning to the task of product matching in…

机器学习 · 计算机科学 2022-05-03 Ralph Peeters , Christian Bizer

In question answering requiring common sense, language models (e.g., GPT-3) have been used to generate text expressing background knowledge that helps improve performance. Yet the cost of working with such models is very high; in this work,…

计算与语言 · 计算机科学 2023-07-18 Wenya Wang , Vivek Srikumar , Hanna Hajishirzi , Noah A. Smith

Contrastive explanations for understanding the behavior of black box models has gained a lot of attention recently as they provide potential for recourse. In this paper, we propose a method Contrastive Attributed explanations for Text (CAT)…

计算与语言 · 计算机科学 2022-11-03 Saneem Chemmengath , Amar Prakash Azad , Ronny Luss , Amit Dhurandhar

While text-to-image generative models can synthesize diverse and faithful content, subject variation across multiple generations limits their application to long-form content generation. Existing approaches require time-consuming…

计算机视觉与模式识别 · 计算机科学 2025-12-05 Lee Hsin-Ying , Kelvin C. K. Chan , Ming-Hsuan Yang

Retrieval-Augmented Generation (RAG) faces a core bottleneck with knowledge-sparse and semantically ambiguous long-tail queries, where retrieval noise distorts reasoning and necessitates costly post-processing. To tackle this, we propose…

人工智能 · 计算机科学 2025-10-28 Kaitong Cai , Jusheng Zhang , Yijia Fan , Jing Yang , Keze Wang

The knowledge concept recommendation in Massive Open Online Courses (MOOCs) is a significant issue that has garnered widespread attention. Existing methods primarily rely on the explicit relations between users and knowledge concepts on the…

信息检索 · 计算机科学 2024-02-14 Hengnian Gu , Zhiyi Duan , Pan Xie , Dongdai Zhou

Counterfactual explanations promote explainability in machine learning models by answering the question "how should an input instance be perturbed to obtain a desired predicted label?". The comparison of this instance before and after…

机器学习 · 计算机科学 2022-11-09 Jing Ma , Ruocheng Guo , Saumitra Mishra , Aidong Zhang , Jundong Li

Previous studies have shown the efficacy of knowledge augmentation methods in pretrained language models. However, these methods behave differently across domains and downstream tasks. In this work, we investigate the augmentation of…

计算与语言 · 计算机科学 2022-06-03 Pedram Hosseini , David A. Broniatowski , Mona Diab

Deep learning models in computer vision have made remarkable progress, but their lack of transparency and interpretability remains a challenge. The development of explainable AI can enhance the understanding and performance of these models.…

计算机视觉与模式识别 · 计算机科学 2025-01-14 Bismillah Khan , Syed Ali Tariq , Tehseen Zia , Muhammad Ahsan , David Windridge

Story generation, namely generating a reasonable story from a leading context, is an important but challenging task. In spite of the success in modeling fluency and local coherence, existing neural language generation models (e.g., GPT-2)…

计算与语言 · 计算机科学 2020-01-16 Jian Guan , Fei Huang , Zhihao Zhao , Xiaoyan Zhu , Minlie Huang

We introduce a novel data generation method for contradiction detection, which leverages the generative power of large language models as well as linguistic rules. Our vision is to provide a condensed corpus of prototypical contradictions,…

计算与语言 · 计算机科学 2023-10-24 Maren Pielka , Svetlana Schmidt , Rafet Sifa

Understanding why a classification model prefers one class over another for an input instance is the challenge of contrastive explanation. This work implements concept-based contrastive explanations for image classification by leveraging…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Yuliia Kaidashova , Bettina Finzel , Ute Schmid

State-of-the-art pre-trained image models predominantly adopt a two-stage approach: initial unsupervised pre-training on large-scale datasets followed by task-specific fine-tuning using Cross-Entropy loss~(CE). However, it has been…

计算机视觉与模式识别 · 计算机科学 2024-11-18 Zijun Long , George Killick , Lipeng Zhuang , Gerardo Aragon-Camarasa , Zaiqiao Meng , Richard Mccreadie

Contrastive learning has emerged as a cornerstone in recent achievements of unsupervised representation learning. Its primary paradigm involves an instance discrimination task with a mutual information loss. The loss is known as InfoNCE and…

人工智能 · 计算机科学 2023-08-31 Kyungeun Lee , Jaeill Kim , Suhyun Kang , Wonjong Rhee