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Often we wish to transfer representational knowledge from one neural network to another. Examples include distilling a large network into a smaller one, transferring knowledge from one sensory modality to a second, or ensembling a…

Machine Learning · Computer Science 2022-01-26 Yonglong Tian , Dilip Krishnan , Phillip Isola

Explainable NLP techniques primarily explain by answering "Which tokens in the input are responsible for this prediction?''. We argue that for NLP models that make predictions by comparing two input texts, it is more useful to explain by…

Computation and Language · Computer Science 2023-12-05 Eleftheria Briakou , Navita Goyal , Marine Carpuat

Reading comprehension QA tasks have seen a recent surge in popularity, yet most works have focused on fact-finding extractive QA. We instead focus on a more challenging multi-hop generative task (NarrativeQA), which requires the model to…

Computation and Language · Computer Science 2019-06-04 Lisa Bauer , Yicheng Wang , Mohit Bansal

The problem of counterfactual visual explanations is considered. A new family of discriminant explanations is introduced. These produce heatmaps that attribute high scores to image regions informative of a classifier prediction but not of a…

Computer Vision and Pattern Recognition · Computer Science 2020-04-17 Pei Wang , Nuno Vasconcelos

It is prevalent to utilize external knowledge to help machine answer questions that need background commonsense, which faces a problem that unlimited knowledge will transmit noisy and misleading information. Towards the issue of introducing…

Computation and Language · Computer Science 2021-07-06 Luxi Xing , Yue Hu , Jing Yu , Yuqiang Xie , Wei Peng

Recently, end-to-end trained models for multiple-choice commonsense question answering (QA) have delivered promising results. However, such question-answering systems cannot be directly applied in real-world scenarios where answer…

Computation and Language · Computer Science 2023-03-21 Zhen Han , Yue Feng , Mingming Sun

Human reading comprehension often requires reasoning of event semantic relations in narratives, represented by Event-centric Question-Answering (QA). To address event-centric QA, we propose a novel QA model with contrastive learning and…

Computation and Language · Computer Science 2022-12-15 Junru Lu , Xingwei Tan , Gabriele Pergola , Lin Gui , Yulan He

Adversarial Training (AT) is known as an effective approach to enhance the robustness of deep neural networks. Recently researchers notice that robust models with AT have good generative ability and can synthesize realistic images, while…

Machine Learning · Computer Science 2022-03-28 Yifei Wang , Yisen Wang , Jiansheng Yang , Zhouchen Lin

Counterfactual explanations (CFEs) are a popular approach for interpreting machine learning predictions by identifying minimal feature changes that alter model outputs. However, in real-world settings, users often refine feasibility…

Machine Learning · Computer Science 2025-05-28 Christos Fragkathoulas , Evaggelia Pitoura

Retrieval-augmented generation (RAG) has emerged as a critical mechanism in contemporary NLP to support Large Language Models(LLMs) in systematically accessing richer factual context. However, the integration of RAG mechanisms brings its…

Computation and Language · Computer Science 2025-06-11 Leonardo Ranaldi , Marco Valentino , Andrè Freitas

Benefiting from the intrinsic supervision information exploitation capability, contrastive learning has achieved promising performance in the field of deep graph clustering recently. However, we observe that two drawbacks of the positive…

Machine Learning · Computer Science 2023-01-04 Xihong Yang , Yue Liu , Sihang Zhou , Siwei Wang , Wenxuan Tu , Qun Zheng , Xinwang Liu , Liming Fang , En Zhu

Various contrastive learning approaches have been proposed in recent years and achieve significant empirical success. While effective and prevalent, contrastive learning has been less explored for time series data. A key component of…

Spoken question answering (SQA) requires fine-grained understanding of both spoken documents and questions for the optimal answer prediction. In this paper, we propose novel training schemes for spoken question answering with a…

Computation and Language · Computer Science 2021-09-09 Chenyu You , Nuo Chen , Yuexian Zou

Data-free knowledge distillation~(DFKD) is an effective manner to solve model compression and transmission restrictions while retaining privacy protection, which has attracted extensive attention in recent years. Currently, the majority of…

Machine Learning · Computer Science 2025-10-07 Renrong Shao , Wei Zhang , Jun wang

Contrastive learning has revolutionized the field of computer vision, learning rich representations from unlabeled data, which generalize well to diverse vision tasks. Consequently, it has become increasingly important to explain these…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Fawaz Sammani , Boris Joukovsky , Nikos Deligiannis

Despite the widespread use of unsupervised models, very few methods are designed to explain them. Most explanation methods explain a scalar model output. However, unsupervised models output representation vectors, the elements of which are…

Machine Learning · Computer Science 2023-06-14 Chris Lin , Hugh Chen , Chanwoo Kim , Su-In Lee

Unsupervised commonsense question answering requires mining effective commonsense knowledge without the rely on the labeled task data. Previous methods typically retrieved from traditional knowledge bases or used pre-trained language models…

Computation and Language · Computer Science 2022-11-28 Yueqing Sun , Yu Zhang , Le Qi , Qi Shi

Detecting tampered text in document images is a challenging task due to data scarcity. To address this, previous work has attempted to generate tampered documents using rule-based methods. However, the resulting documents often suffer from…

Computer Vision and Pattern Recognition · Computer Science 2026-02-20 Mohamed Dhouib , Davide Buscaldi , Sonia Vanier , Aymen Shabou

Knowledge graph embedding (KGE) aims at learning powerful representations to benefit various artificial intelligence applications. Meanwhile, contrastive learning has been widely leveraged in graph learning as an effective mechanism to…

Artificial Intelligence · Computer Science 2023-06-14 Ke Liang , Yue Liu , Sihang Zhou , Wenxuan Tu , Yi Wen , Xihong Yang , Xiangjun Dong , Xinwang Liu

Recent methods for learning unsupervised visual representations, dubbed contrastive learning, optimize the noise-contrastive estimation (NCE) bound on mutual information between two views of an image. NCE uses randomly sampled negative…

Machine Learning · Computer Science 2020-10-06 Mike Wu , Milan Mosse , Chengxu Zhuang , Daniel Yamins , Noah Goodman