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In this work, we propose ModelPred, a framework that helps to understand the impact of changes in training data on a trained model. This is critical for building trust in various stages of a machine learning pipeline: from cleaning…

机器学习 · 计算机科学 2022-12-27 Yingyan Zeng , Jiachen T. Wang , Si Chen , Hoang Anh Just , Ran Jin , Ruoxi Jia

Recently, prompt tuning \cite{lester2021power} has gradually become a new paradigm for NLP, which only depends on the representation of the words by freezing the parameters of pre-trained language models (PLMs) to obtain remarkable…

计算与语言 · 计算机科学 2022-01-31 Pan He , Yuxi Chen , Yan Wang , Yanru Zhang

In recent times, sequence-to-sequence (seq2seq) models have gained a lot of popularity and provide state-of-the-art performance in a wide variety of tasks such as machine translation, headline generation, text summarization, speech to text…

机器学习 · 计算机科学 2019-04-17 Yaser Keneshloo , Tian Shi , Naren Ramakrishnan , Chandan K. Reddy

Trajectory representation learning (TRL) maps trajectories to vectors that can then be used for various downstream tasks, including trajectory similarity computation, trajectory classification, and travel-time estimation. However, existing…

机器学习 · 计算机科学 2024-12-02 Silin Zhou , Shuo Shang , Lisi Chen , Christian S. Jensen , Panos Kalnis

Building a good speech recognition system usually requires large amounts of transcribed data, which is expensive to collect. To tackle this problem, many unsupervised pre-training methods have been proposed. Among these methods, Masked…

音频与语音处理 · 电气工程与系统科学 2020-06-24 Dongwei Jiang , Wubo Li , Ruixiong Zhang , Miao Cao , Ne Luo , Yang Han , Wei Zou , Xiangang Li

Many reinforcement learning (RL) tasks provide the agent with high-dimensional observations that can be simplified into low-dimensional continuous states. To formalize this process, we introduce the concept of a DeepMDP, a parameterized…

机器学习 · 计算机科学 2019-06-07 Carles Gelada , Saurabh Kumar , Jacob Buckman , Ofir Nachum , Marc G. Bellemare

Prompt tuning and adapter tuning have shown great potential in transferring pre-trained vision-language models (VLMs) to various downstream tasks. In this work, we design a new type of tuning method, termed as regularized mask tuning, which…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Kecheng Zheng , Wei Wu , Ruili Feng , Kai Zhu , Jiawei Liu , Deli Zhao , Zheng-Jun Zha , Wei Chen , Yujun Shen

Most model-free reinforcement learning methods leverage state representations (embeddings) for generalization, but either ignore structure in the space of actions or assume the structure is provided a priori. We show how a policy can be…

机器学习 · 计算机科学 2019-05-16 Yash Chandak , Georgios Theocharous , James Kostas , Scott Jordan , Philip S. Thomas

Techniques that learn improved representations via offline data or self-supervised objectives have shown impressive results in traditional reinforcement learning (RL). Nevertheless, it is unclear how improved representation learning can…

计算与语言 · 计算机科学 2024-10-25 Vaskar Nath , Dylan Slack , Jeff Da , Yuntao Ma , Hugh Zhang , Spencer Whitehead , Sean Hendryx

We introduce Large Language Model-Assisted Preference Prediction (LAPP), a novel framework for robot learning that enables efficient, customizable, and expressive behavior acquisition with minimum human effort. Unlike prior approaches that…

机器人学 · 计算机科学 2025-04-23 Pingcheng Jian , Xiao Wei , Yanbaihui Liu , Samuel A. Moore , Michael M. Zavlanos , Boyuan Chen

Conventional state representations in reinforcement learning often omit critical task-related details, presenting a significant challenge for value networks in establishing accurate mappings from states to task rewards. Traditional methods…

人工智能 · 计算机科学 2024-07-19 Boyuan Wang , Yun Qu , Yuhang Jiang , Jianzhun Shao , Chang Liu , Wenming Yang , Xiangyang Ji

The growing disparity between the exponential scaling of computational resources and the finite growth of high-quality text data now constrains conventional scaling approaches for large language models (LLMs). To address this challenge, we…

For protein sequence datasets, unlabeled data has greatly outpaced labeled data due to the high cost of wet-lab characterization. Recent deep-learning approaches to protein prediction have shown that pre-training on unlabeled data can yield…

机器学习 · 计算机科学 2020-12-02 Pascal Sturmfels , Jesse Vig , Ali Madani , Nazneen Fatema Rajani

Masked video modeling (MVM) has emerged as a simple and scalable self-supervised pretraining paradigm, but only encodes motion information implicitly, limiting the encoding of temporal dynamics in the learned representations. As a result,…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Renaud Vandeghen , Fida Mohammad Thoker , Marc Van Droogenbroeck , Bernard Ghanem

Recent advancements in computational chemistry have leveraged the power of trans-former-based language models, such as MoLFormer, pre-trained using a vast amount of simplified molecular-input line-entry system (SMILES) sequences, to…

生物大分子 · 定量生物学 2024-11-05 Tianhao Peng , Yuchen Li , Xuhong Li , Jiang Bian , Zeke Xie , Ning Sui , Shahid Mumtaz , Yanwu Xu , Linghe Kong , Haoyi Xiong

Large language models (LLMs) have recently demonstrated their impressive ability to provide context-aware responses via text. This ability could potentially be used to predict plausible solutions in sequential decision making tasks…

Meta-Reinforcement Learning addresses the critical limitations of conventional Reinforcement Learning in multi-task and non-stationary environments by enabling fast policy adaptation and improved generalization. We introduce a novel Meta-RL…

机器学习 · 计算机科学 2026-03-10 Théo Zangato , Aomar Osmani , Pegah Alizadeh

A central component of training in Reinforcement Learning (RL) is Experience: the data used for training. The mechanisms used to generate and consume this data have an important effect on the performance of RL algorithms. In this paper, we…

Fine-tuning pre-trained language models (PLMs) has become a dominant paradigm in applying PLMs to downstream tasks. However, with limited fine-tuning, PLMs still struggle with the discrepancies between the representation obtained from the…

计算与语言 · 计算机科学 2025-05-30 Fujun Zhang , Xiaoying Fan , XiangDong Su , Guanglai Gao

The pretraining-finetuning paradigm has facilitated numerous transformative advancements in artificial intelligence research in recent years. However, in the domain of reinforcement learning (RL) for robot locomotion, individual skills are…

机器人学 · 计算机科学 2026-03-10 Jiale Fan , Andrei Cramariuc , Tifanny Portela , Marco Hutter