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Model agnostic meta-learning algorithms aim to infer priors from several observed tasks that can then be used to adapt to a new task with few examples. Given the inherent diversity of tasks arising in existing benchmarks, recent methods use…

Machine Learning · Computer Science 2022-07-26 Rakshith Subramanyam , Mark Heimann , Jayram Thathachar , Rushil Anirudh , Jayaraman J. Thiagarajan

Combinatorial Optimization underpins many real-world applications and yet, designing performant algorithms to solve these complex, typically NP-hard, problems remains a significant research challenge. Reinforcement Learning (RL) provides a…

Despite of the superb performance on a wide range of tasks, pre-trained language models (e.g., BERT) have been proved vulnerable to adversarial texts. In this paper, we present RoChBERT, a framework to build more Robust BERT-based models by…

Computation and Language · Computer Science 2022-10-31 Zihan Zhang , Jinfeng Li , Ning Shi , Bo Yuan , Xiangyu Liu , Rong Zhang , Hui Xue , Donghong Sun , Chao Zhang

We apply a Transformer architecture, specifically BERT, to learn flexible and high quality molecular representations for drug discovery problems. We study the impact of using different combinations of self-supervised tasks for pre-training,…

Machine Learning · Computer Science 2020-11-30 Benedek Fabian , Thomas Edlich , Héléna Gaspar , Marwin Segler , Joshua Meyers , Marco Fiscato , Mohamed Ahmed

Label distribution learning (LDL) is a new machine learning paradigm for solving label ambiguity. Since it is difficult to directly obtain label distributions, many studies are focusing on how to recover label distributions from logical…

Machine Learning · Computer Science 2023-05-17 Yifei Wang , Yiyang Zhou , Jihua Zhu , Xinyuan Liu , Wenbiao Yan , Zhiqiang Tian

In recent years, the learned local descriptors have outperformed handcrafted ones by a large margin, due to the powerful deep convolutional neural network architectures such as L2-Net [1] and triplet based metric learning [2]. However,…

Computer Vision and Pattern Recognition · Computer Science 2019-01-29 Yanwu Xu , Mingming Gong , Tongliang Liu , Kayhan Batmanghelich , Chaohui Wang

Reinforcement learning (RL) is currently used in various real-life applications. RL-based solutions have the potential to generically address problems, including the ones that are difficult to solve with heuristics and meta-heuristics and,…

Machine Learning · Computer Science 2022-11-24 Rafael F. Reale , Joberto S. B. Martins

Learning from demonstrations has made great progress over the past few years. However, it is generally data hungry and task specific. In other words, it requires a large amount of data to train a decent model on a particular task, and the…

Machine Learning · Computer Science 2021-03-29 Pin Wang , Hanhan Li , Ching-Yao Chan

The prior self-supervised learning researches mainly select image-level instance discrimination as pretext task. It achieves a fantastic classification performance that is comparable to supervised learning methods. However, with degraded…

Computer Vision and Pattern Recognition · Computer Science 2022-05-11 Bing Zhao , Jun Li , Hong Zhu

Transformer classifiers such as BERT deliver impressive closed-set accuracy, yet they remain brittle when confronted with inputs from unseen categories--a common scenario for deployed NLP systems. We investigate Open-Set Recognition (OSR)…

Machine Learning · Computer Science 2026-01-06 Tianshuo Yang , Ryan Rabinowitz , Terrance E. Boult , Jugal Kalita

Session-based recommendation aims to predict intents of anonymous users based on limited behaviors. With the ability in alleviating data sparsity, contrastive learning is prevailing in the task. However, we spot that existing contrastive…

Information Retrieval · Computer Science 2025-06-06 Xiaokun Zhang , Bo Xu , Fenglong Ma , Zhizheng Wang , Liang Yang , Hongfei Lin

Deep learning in combination with improved training techniques and high computational power has led to recent advances in the field of reinforcement learning (RL) and to successful robotic RL applications such as in-hand manipulation.…

Robotics · Computer Science 2021-03-18 Melvin Laux , Oleg Arenz , Jan Peters , Joni Pajarinen

Polymers play a crucial role in a wide array of applications due to their diverse and tunable properties. Establishing the relationship between polymer representations and their properties is crucial to the computational design and…

Machine Learning · Computer Science 2024-08-15 Jiajun Zhou , Yijie Yang , Austin M. Mroz , Kim E. Jelfs

Contrastive learning (CL) has recently emerged as an effective approach to learning representation in a range of downstream tasks. Central to this approach is the selection of positive (similar) and negative (dissimilar) sets to provide the…

Machine Learning · Computer Science 2021-10-25 Anh Bui , Trung Le , He Zhao , Paul Montague , Seyit Camtepe , Dinh Phung

Multi-vector retrieval methods such as ColBERT and its recent variant, the ConteXtualized Token Retriever (XTR), offer high accuracy but face efficiency challenges at scale. To address this, we present WARP, a retrieval engine that…

Information Retrieval · Computer Science 2025-07-08 Jan Luca Scheerer , Matei Zaharia , Christopher Potts , Gustavo Alonso , Omar Khattab

Building accurate Deep Learning (DL) models for brain age prediction is a very relevant topic in neuroimaging, as it could help better understand neurodegenerative disorders and find new biomarkers. To estimate accurate and generalizable…

Image and Video Processing · Electrical Eng. & Systems 2023-03-22 Carlo Alberto Barbano , Benoit Dufumier , Edouard Duchesnay , Marco Grangetto , Pietro Gori

Combinatorial optimization problem (COP) over graphs is a fundamental challenge in optimization. Reinforcement learning (RL) has recently emerged as a new framework to tackle these problems and has demonstrated promising results. However,…

Machine Learning · Computer Science 2022-09-05 Fan Yao , Renqin Cai , Hongning Wang

Multi-agent collaborative perception enhances each agent perceptual capabilities by sharing sensing information to cooperatively perform robot perception tasks. This approach has proven effective in addressing challenges such as sensor…

Machine Learning · Computer Science 2025-07-02 Rujia Wang , Xiangbo Gao , Hao Xiang , Runsheng Xu , Zhengzhong Tu

Real-world radar signals are frequently corrupted by various artifacts, including sensor noise, echoes, interference, and intentional jamming, differing in type, severity, and duration. This pilot study introduces a novel model, called…

Machine Learning · Computer Science 2025-01-29 Muhammad Uzair Zahid , Serkan Kiranyaz , Alper Yildirim , Moncef Gabbouj

The Dreamer agent provides various benefits of Model-Based Reinforcement Learning (MBRL) such as sample efficiency, reusable knowledge, and safe planning. However, its world model and policy networks inherit the limitations of recurrent…

Machine Learning · Computer Science 2024-11-20 Chang Chen , Yi-Fu Wu , Jaesik Yoon , Sungjin Ahn
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