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Accurate and efficient prediction of the molecular properties of drugs is one of the fundamental problems in drug research and development. Recent advancements in representation learning have been shown to greatly improve the performance of…

Biomolecules · Quantitative Biology 2022-06-17 Hui Liu , Yibiao Huang , Xuejun Liu , Lei Deng

Meta-learning methods have been extensively studied and applied in computer vision, especially for few-shot classification tasks. The key idea of meta-learning for few-shot classification is to mimic the few-shot situations faced at test…

Computer Vision and Pattern Recognition · Computer Science 2020-07-20 Chenghao Liu , Zhihao Wang , Doyen Sahoo , Yuan Fang , Kun Zhang , Steven C. H. Hoi

Retrieval-augmented large language models, when optimized with outcome-level rewards, can achieve strong answer accuracy on multi-hop questions. However, under noisy retrieval, models frequently suffer from "right-answer-wrong-reason…

Computation and Language · Computer Science 2026-03-17 Yu Liu , Wenxiao Zhang , Diandian Guo , Cong Cao , Fangfang Yuan , Qiang Sun , Yanbing Liu , Jin B. Hong , Zhiyuan Ma

Optimizing communication topology is fundamental to the efficiency and effectiveness of Large Language Model (LLM)-based Multi-Agent Systems (MAS). While recent approaches utilize reinforcement learning to dynamically construct…

Computation and Language · Computer Science 2026-03-04 Yueyang Cang , Xiaoteng Zhang , Erlu Zhao , Zehua Ji , Yuhang Liu , Yuchen He , Zhiyuan Ning , Chen Yijun , Wenge Que , Li Shi

The effectiveness of Multimodal Chain-of-Thought (MCoT) prompting is often limited by the use of randomly or manually selected examples. These examples fail to account for both model-specific knowledge distributions and the intrinsic…

Computation and Language · Computer Science 2025-10-14 Xinglong Yang , Quan Feng , Zhongying Pan , Xiang Chen , Yu Tian , Wentong Li , Shuofei Qiao , Yuxia Geng , Xingyu Zhao , Sheng-Jun Huang

This study explores innovative methods for improving Visual Question Answering (VQA) using Generative Adversarial Networks (GANs), autoencoders, and attention mechanisms. Leveraging a balanced VQA dataset, we investigate three distinct…

Computer Vision and Pattern Recognition · Computer Science 2024-11-13 Panfeng Li , Qikai Yang , Xieming Geng , Wenjing Zhou , Zhicheng Ding , Yi Nian

Multi-task learning of deformable object manipulation is a challenging problem in robot manipulation. Most previous works address this problem in a goal-conditioned way and adapt goal images to specify different tasks, which limits the…

Robotics · Computer Science 2024-01-30 Yuhong Deng , Kai Mo , Chongkun Xia , Xueqian Wang

Artificial intelligence (AI) has significantly improved medical screening accuracy, particularly in cancer detection and risk assessment. However, traditional classification metrics often fail to account for imbalanced data, varying…

Machine Learning · Computer Science 2025-10-28 Longfei Wei , Fang Sheng , Jianfei Zhang

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

Multimodal question answering (QA) often requires identifying which video, audio, or sensor tokens are relevant to the question. Yet modality disagreements are common: off-camera speech, background noise, or motion outside the field of view…

Computation and Language · Computer Science 2025-09-08 Subrata Biswas , Mohammad Nur Hossain Khan , Bashima Islam

Sentiment analysis and emotion recognition in videos are challenging tasks, given the diversity and complexity of the information conveyed in different modalities. Developing a highly competent framework that effectively addresses the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-18 Prasad Chaudhari , Aman Kumar , Chandravardhan Singh Raghaw , Mohammad Zia Ur Rehman , Nagendra Kumar

Despite its promise, imitation learning often fails in long-horizon environments where perfect replication of demonstrations is unrealistic and small errors can accumulate catastrophically. We introduce Cago (Capability-Aware Goal…

Artificial Intelligence · Computer Science 2026-01-14 Yuanlin Duan , Yuning Wang , Wenjie Qiu , He Zhu

Knowledge graphs (KGs) play a vital role in enhancing search results and recommendation systems. With the rapid increase in the size of the KGs, they are becoming inaccuracy and incomplete. This problem can be solved by the knowledge graph…

Machine Learning · Computer Science 2024-08-06 Wanxu Wei , Yitong Song , Bin Yao

Although graph neural networks (GNNs) have achieved impressive achievements in graph classification, they often need abundant task-specific labels, which could be extensively costly to acquire. A credible solution is to explore additional…

Machine Learning · Computer Science 2025-07-15 Nan Yin , Li Shen , Mengzhu Wang , Long Lan , Zeyu Ma , Chong Chen , Xian-Sheng Hua , Xiao Luo

Automated online and App-based cognitive assessment tasks are becoming increasingly popular in large-scale cohorts and biobanks due to advantages in affordability, scalability and repeatability. However, the summary scores that such tasks…

Neurons and Cognition · Quantitative Biology 2023-05-31 Valentina Giunchiglia , Sharon Curtis , Stephen Smith , Naomi Allen , Adam Hampshire

Cross-modal retrieval aims to search for instances, which are semantically related to the query through the interaction of different modal data. Traditional solutions utilize a single-tower or dual-tower framework to explicitly compute the…

Information Retrieval · Computer Science 2025-12-02 Minghui Fang , Shengpeng Ji , Jialong Zuo , Hai Huang , Yan Xia , Jieming Zhu , Xize Cheng , Xiaoda Yang , Wenrui Liu , Gang Wang , Zhenhua Dong , Zhou Zhao

Recent advancements in Graph Contrastive Learning (GCL) have demonstrated remarkable effectiveness in improving graph representations. However, relying on predefined augmentations (e.g., node dropping, edge perturbation, attribute masking)…

Machine Learning · Computer Science 2025-02-27 Khaled Mohammed Saifuddin , Shihao Ji , Esra Akbas

Corpus Aware Training (CAT) leverages valuable corpus metadata during training by injecting corpus information into each training example, and has been found effective in the literature, commonly known as the "tagging" approach. Models…

Machine Learning · Computer Science 2025-08-08 Yi-Hsiu Liao , Cheng Shen , Brenda , Yang

Retrieval-augmented generation (RAG) systems have made significant progress in solving complex multi-hop question answering (QA) tasks in the English scenario. However, RAG systems inevitably face the application scenario of retrieving…

Computation and Language · Computer Science 2026-03-20 Yilin Wang , Yuchun Fan , Jiaoyang Li , Ziming Zhu , Yongyu Mu , Qiaozhi He , Tong Xiao , Jingbo Zhu

Sequential user behavior modeling is pivotal for Click-Through Rate (CTR) prediction yet is hindered by three intrinsic bottlenecks: (1) the "Attention Sink" phenomenon, where standard Softmax compels the model to allocate probability mass…

Information Retrieval · Computer Science 2026-01-15 Shenqiang Ke , Jianxiong Wei , Qingsong Hua