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Retrieval-augmented generation (RAG) enhances large language models by grounding outputs in retrieved knowledge. However, existing RAG methods including graph- and hypergraph-based approaches treat retrieved evidence as an unordered set,…

Computation and Language · Computer Science 2026-04-15 Keshu Wu , Chenchen Kuai , Zihao Li , Jiwan Jiang , Shiyu Shen , Shian Wang , Chan-Wei Hu , Zhengzhong Tu , Yang Zhou

In this study, we introduce the concept of OKR-Agent designed to enhance the capabilities of Large Language Models (LLMs) in task-solving. Our approach utilizes both self-collaboration and self-correction mechanism, facilitated by…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Yi Zheng , Chongyang Ma , Kanle Shi , Haibin Huang

Large Language Models (LLMs) have attracted significant attention in recommender systems for their excellent world knowledge capabilities. However, existing methods that rely on Euclidean space struggle to capture the rich hierarchical…

Information Retrieval · Computer Science 2025-04-22 Wentao Cheng , Zhida Qin , Zexue Wu , Pengzhan Zhou , Tianyu Huang

With recent advancements in Large Language Models (LLMs) and growing interest in retrieval-augmented generation (RAG), the ability to understand table structures has become increasingly important. This is especially critical in financial…

Computation and Language · Computer Science 2025-05-26 Hayato Aida , Kosuke Takahashi , Takahiro Omi

Explicit software architecture models are essential artifacts for communicating, analyzing, and evolving complex software-intensive systems. In ROS~2-based robotic systems, however, structural (de-)composition and integration semantics are…

Software Engineering · Computer Science 2026-05-20 Dominique Briechle , Raj Chanchad , Tobias Geger , Ruidi He , Dhruv Jajadiya , Dhruv Kapadiya , Andreas Rausch , Meng Zhang

Hyperbolic geometry is an effective geometry for embedding hierarchical data structures. Hyperbolic learning has therefore become increasingly prominent in machine learning applications where data is hierarchically organized or governed by…

Artificial Intelligence · Computer Science 2025-11-27 Melika Ayoughi , Pascal Mettes , Paul Groth

Transformative innovations in model architectures have introduced hierarchical embedding augmentation as a means to redefine the representation of tokens through multi-level semantic structures, offering enhanced adaptability to complex…

Computation and Language · Computer Science 2025-08-11 Derek Yotheringhay , Alistair Kirkland , Humphrey Kirkbride , Josiah Whitesteeple

Combining additive models and neural networks allows to broaden the scope of statistical regression and extend deep learning-based approaches by interpretable structured additive predictors at the same time. Existing attempts uniting the…

Machine Learning · Statistics 2022-07-12 David Rügamer , Chris Kolb , Nadja Klein

Representation learning on heterogeneous text-rich networks (HTRNs), which consist of multiple types of nodes and edges with each node associated with textual information, is essential for various real-world applications. Given the success…

Machine Learning · Computer Science 2025-01-23 Qiuyu Zhu , Liang Zhang , Qianxiong Xu , Cheng Long

Embedding visual representations within original hierarchical tables can mitigate additional cognitive load stemming from the division of users' attention. The created hierarchical table visualizations can help users understand and explore…

Human-Computer Interaction · Computer Science 2024-05-28 Guozheng Li , Peng He , Xinyu Wang , Runfei Li , Chi Harold Liu , Chuangxin Ou , Dong He , Guoren Wang

This paper addresses the task of semantic segmentation of orthoimagery using multimodal data e.g. optical RGB, infrared and digital surface model. We propose a deep convolutional neural network architecture termed OrthoSeg for semantic…

Computer Vision and Pattern Recognition · Computer Science 2018-11-21 Pankaj Bodani , Kumar Shreshtha , Shashikant Sharma

We present the Super-Localized Orthogonal Decomposition (SLOD) method for the numerical homogenization of linear elasticity problems with multiscale microstructures modeled by a heterogeneous coefficient field without any periodicity or…

Numerical Analysis · Mathematics 2025-01-10 Camilla Belponer , José C. Garay , Peter Munch , Daniel Peterseim

Large language models (LLMs) suffer from catastrophic forgetting in sequential multi-task learning. Existing parameter regularization methods (e.g., O-LoRA, N-LoRA) mitigate interference via low-rank subspace orthogonality, but additive…

Computation and Language · Computer Science 2026-01-26 Kefan Cao , Shuaicheng Wu

Handling heterogeneous data in tabular datasets poses a significant challenge for deep learning models. While attention-based architectures and self-supervised learning have achieved notable success, their application to tabular data…

Machine Learning · Computer Science 2025-02-27 Anay Majee , Maria Xenochristou , Wei-Peng Chen

Decision trees are a popular technique in statistical data classification. They recursively partition the feature space into disjoint sub-regions until each sub-region becomes homogeneous with respect to a particular class. The basic…

Machine Learning · Statistics 2015-04-15 D. C. Wickramarachchi , B. L. Robertson , M. Reale , C. J. Price , J. Brown

Heterogeneous graphs are widely present in real-world complex networks, where the diversity of node and relation types leads to complex and rich semantics. Efforts for modeling complex relation semantics in heterogeneous graphs are…

Computation and Language · Computer Science 2025-11-25 Wenda Li , Tongya Zheng , Shunyu Liu , Yu Wang , Kaixuan Chen , Hanyang Yuan , Bingde Hu , Zujie Ren , Mingli Song , Gang Chen

Drug synergy prediction (DSP) aims to identify efficacious drug combinations under various cellular contexts with different targets. However, the continual emergence of novel compounds results in variations in molecular scaffolds and sizes,…

Machine Learning · Computer Science 2026-05-29 Xin Wang , Linxin Xiao , Yang Yao , Wenwu Zhu

Late-life depression (LLD) is a highly prevalent mood disorder occurring in older adults and is frequently accompanied by cognitive impairment (CI). Studies have shown that LLD may increase the risk of Alzheimer's disease (AD). However, the…

Image and Video Processing · Electrical Eng. & Systems 2022-12-27 Lintao Zhang , Lihong Wang , Minhui Yu , Rong Wu , David C. Steffens , Guy G. Potter , Mingxia Liu

Topology reasoning is crucial for autonomous driving. Current methods primarily focus on instance-level learning for centerline detection, followed by a sequential module for topology reasoning that relies on simplified MLP layers.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Yifeng Bai , Zhirong Chen , Erkang Cheng , Haibin Ling

Fine-tuning large language models (LLMs) on a mixture of diverse datasets poses challenges due to data imbalance and heterogeneity. Existing methods often address these issues across datasets (globally) but overlook the imbalance and…

Computation and Language · Computer Science 2026-02-06 Weixuan Wang , Minghao Wu , Barry Haddow , Alexandra Birch
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