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相关论文: UserBERT: Contrastive User Model Pre-training

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Contrastive learning techniques have been widely used in the field of computer vision as a means of augmenting datasets. In this paper, we extend the use of these contrastive learning embeddings to sentiment analysis tasks and demonstrate…

计算与语言 · 计算机科学 2021-12-03 Ipsita Mohanty , Ankit Goyal , Alex Dotterweich

In this study, importance of user inputs is studied in the context of personalizing human activity recognition models using incremental learning. Inertial sensor data from three body positions are used, and the classification is based on…

机器学习 · 计算机科学 2019-05-30 Pekka Siirtola , Heli Koskimäki , Juha Röning

Pre-training by language modeling has become a popular and successful approach to NLP tasks, but we have yet to understand exactly what linguistic capacities these pre-training processes confer upon models. In this paper we introduce a…

计算与语言 · 计算机科学 2020-07-14 Allyson Ettinger

Providing a personalized user experience on information dense webpages helps users in reaching their end-goals sooner. We explore an automated approach to identifying user personas by leveraging high dimensional trajectory information from…

信息检索 · 计算机科学 2023-11-21 Narges Tabari , Sandesh Swamy , Rashmi Gangadharaiah

Large language models have achieved remarkable capabilities, but aligning their outputs with human values and preferences remains a significant challenge. Existing alignment methods primarily focus on positive examples while overlooking the…

计算与语言 · 计算机科学 2024-10-17 Shiqi Qiao , Ning Xv , Biao Liu , Xin Geng

User embeddings play a crucial role in user engagement forecasting and personalized services. Recent advances in sequence modeling have sparked interest in learning user embeddings from behavioral data. Yet behavior-based user embedding…

社会与信息网络 · 计算机科学 2024-03-21 Zhihan Zhou , Qixiang Fang , Leonardo Neves , Francesco Barbieri , Yozen Liu , Han Liu , Maarten W. Bos , Ron Dotsch

Language model (LM) pretraining can learn various knowledge from text corpora, helping downstream tasks. However, existing methods such as BERT model a single document, and do not capture dependencies or knowledge that span across…

计算与语言 · 计算机科学 2022-03-31 Michihiro Yasunaga , Jure Leskovec , Percy Liang

The significant achievements of pre-trained models leveraging large volumes of data in the field of NLP and 2D vision inspire us to explore the potential of extensive data pre-training for 3D perception in autonomous driving. Toward this…

计算机视觉与模式识别 · 计算机科学 2025-04-18 Shumin Wang , Zhuoran Yang , Lidian Wang , Zhipeng Tang , Heng Li , Lehan Pan , Sha Zhang , Jie Peng , Jianmin Ji , Yanyong Zhang

User Behavior Sequence (UBS) modeling is crucial in industrial applications. As data scale and task diversity grow, UBS pretraining methods have become increasingly pivotal. State-of-the-art UBS pretraining methods rely on predicting…

机器学习 · 计算机科学 2025-06-16 Weichang Wu , Xiaolu Zhang , Jun Zhou , Yuchen Li , Wenwen Xia

Recent research has suggested that there are clear differences in the language used in the Dark Web compared to that of the Surface Web. As studies on the Dark Web commonly require textual analysis of the domain, language models specific to…

计算与语言 · 计算机科学 2023-05-19 Youngjin Jin , Eugene Jang , Jian Cui , Jin-Woo Chung , Yongjae Lee , Seungwon Shin

Deep visuomotor policy learning, which aims to map raw visual observation to action, achieves promising results in control tasks such as robotic manipulation and autonomous driving. However, it requires a huge number of online interactions…

计算机视觉与模式识别 · 计算机科学 2022-07-19 Qihang Zhang , Zhenghao Peng , Bolei Zhou

We present MetricBERT, a BERT-based model that learns to embed text under a well-defined similarity metric while simultaneously adhering to the ``traditional'' masked-language task. We focus on downstream tasks of learning similarities for…

计算与语言 · 计算机科学 2022-08-16 Itzik Malkiel , Dvir Ginzburg , Oren Barkan , Avi Caciularu , Yoni Weill , Noam Koenigstein

Multimodal emotion recognition study is hindered by the lack of labelled corpora in terms of scale and diversity, due to the high annotation cost and label ambiguity. In this paper, we propose a pre-training model \textbf{MEmoBERT} for…

计算机视觉与模式识别 · 计算机科学 2021-11-02 Jinming Zhao , Ruichen Li , Qin Jin , Xinchao Wang , Haizhou Li

The unsupervised pretraining of object detectors has recently become a key component of object detector training, as it leads to improved performance and faster convergence during the supervised fine-tuning stage. Existing unsupervised…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Ioannis Maniadis Metaxas , Adrian Bulat , Ioannis Patras , Brais Martinez , Georgios Tzimiropoulos

Typically, machine learning models are trained and evaluated without making any distinction between users (e.g, using traditional hold-out and cross-validation). However, this produces inaccurate performance metrics estimates in multi-user…

机器学习 · 计算机科学 2023-12-11 Enrique Garcia-Ceja , Luciano Garcia-Banuelos , Nicolas Jourdan

Pre-training has shown success in different areas of machine learning, such as Computer Vision, Natural Language Processing (NLP), and medical imaging. However, it has not been fully explored for clinical data analysis. An immense amount of…

机器学习 · 计算机科学 2023-07-18 Chantal Pellegrini , Nassir Navab , Anees Kazi

Although pre-trained language models (PLMs) have achieved state-of-the-art performance on various natural language processing (NLP) tasks, they are shown to be lacking in knowledge when dealing with knowledge driven tasks. Despite the many…

计算与语言 · 计算机科学 2022-08-02 Qianglong Chen , Feng-Lin Li , Guohai Xu , Ming Yan , Ji Zhang , Yin Zhang

Trained classification models can unintentionally lead to biased representations and predictions, which can reinforce societal preconceptions and stereotypes. Existing debiasing methods for classification models, such as adversarial…

计算与语言 · 计算机科学 2021-09-23 Aili Shen , Xudong Han , Trevor Cohn , Timothy Baldwin , Lea Frermann

Language models (LMs) are pretrained to imitate internet text, including content that would violate human preferences if generated by an LM: falsehoods, offensive comments, personally identifiable information, low-quality or buggy code, and…

Modern natural language processing (NLP) methods employ self-supervised pretraining objectives such as masked language modeling to boost the performance of various application tasks. These pretraining methods are frequently extended with…

计算与语言 · 计算机科学 2021-02-26 Nils Rethmeier , Isabelle Augenstein