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Retrieval-Augmented Generation (RAG) has been proposed to mitigate hallucinations in large language models (LLMs), where generated outputs may be factually incorrect. However, existing RAG approaches predominantly rely on vector similarity…

信息检索 · 计算机科学 2026-04-28 Miao Xie , Xiao Zhang , Yi Li , Chunli Lv

Numerically efficient and stable algorithms are essential for kernel-based regularized system identification. The state of art algorithms exploit the semiseparable structure of the kernel and are based on the generator representation of the…

数值分析 · 数学 2025-11-04 Zhuohua Shen , Junpeng Zhang , Martin S. Andersen , Tianshi Chen

The goal of this document is to survey existing methods for recovering CSG representations from unstructured data such as 3D point-clouds or polygon meshes. We review and discuss related topics such as the segmentation and fitting of the…

图形学 · 计算机科学 2024-01-24 Pierre-Alain Fayolle , Markus Friedrich

Generative concept representations have three major advantages over discriminative ones: they can represent uncertainty, they support integration of learning and reasoning, and they are good for unsupervised and semi-supervised learning. We…

机器学习 · 计算机科学 2018-11-19 Daniel T. Chang

A generation algorithm based on an active chart parsing algorithm is introduced which can be used in conjunction with a Shake and Bake machine translation system. A concise Prolog implementation of the algorithm is provided, and some…

cmp-lg · 计算机科学 2008-02-03 Fred Popowich

The encoding representation of the genetic algorithm can boost or hinder its performance albeit the care one can devote to operator design. Unfortunately, a representation-theory foundation that helps to find the suitable encoding for any…

神经与进化计算 · 计算机科学 2019-05-17 Menouar Boulif

Kernel methods are powerful tools in machine learning. They have to be computationally efficient. In this paper, we present a novel Geometric-based approach to compute efficiently the string subsequence kernel (SSK). Our main idea is that…

机器学习 · 计算机科学 2015-03-02 Slimane Bellaouar , Hadda Cherroun , Djelloul Ziadi

The number of published research papers has experienced exponential growth in recent years, which makes it crucial to develop new methods for efficient and versatile information extraction and knowledge discovery. To address this need, we…

信息检索 · 计算机科学 2023-06-09 Yamei Tu , Rui Qiu , Han-Wei Shen

Biphasic face photo-sketch synthesis has significant practical value in wide-ranging fields such as digital entertainment and law enforcement. Previous approaches directly generate the photo-sketch in a global view, they always suffer from…

计算机视觉与模式识别 · 计算机科学 2023-12-05 Xingqun Qi , Muyi Sun , Zijian Wang , Jiaming Liu , Qi Li , Fang Zhao , Shanghang Zhang , Caifeng Shan

In this paper, we propose a semantic communication approach based on probabilistic graphical model (PGM). The proposed approach involves constructing a PGM from a training dataset, which is then shared as common knowledge between the…

机器学习 · 计算机科学 2024-08-09 Haowen Wan , Qianqian Yang , Jiancheng Tang , Zhiguo shi

This paper introduces a novel framework for generative models based on Restricted Kernel Machines (RKMs) with joint multi-view generation and uncorrelated feature learning, called Gen-RKM. To enable joint multi-view generation, this…

机器学习 · 计算机科学 2020-12-18 Arun Pandey , Joachim Schreurs , Johan A. K. Suykens

Convolutional neural networks have been widely applied to hyperspectral image classification. However, traditional convolutions can not effectively extract features for objects with irregular distributions. Recent methods attempt to address…

计算机视觉与模式识别 · 计算机科学 2023-04-07 Di Wang , Bo Du , Liangpei Zhang

Natural language generation systems (NLG) map non-linguistic representations into strings of words through a number of steps using intermediate representations of various levels of abstraction. Template based systems, by contrast, tend to…

计算与语言 · 计算机科学 2007-05-23 Emanuele Pianta , Lucia M. Tovena

The use of kernel functions is a common technique to extract important features from data sets. A quantum computer can be used to estimate kernel entries as transition amplitudes of unitary circuits. Quantum kernels exist that, subject to…

Incorporating prior knowledge like lexical constraints into the model's output to generate meaningful and coherent sentences has many applications in dialogue system, machine translation, image captioning, etc. However, existing RNN-based…

计算与语言 · 计算机科学 2019-11-20 Dayiheng Liu , Jie Fu , Qian Qu , Jiancheng Lv

Performing machine learning on structured data is complicated by the fact that such data does not have vectorial form. Therefore, multiple approaches have emerged to construct vectorial representations of structured data, from kernel and…

机器学习 · 计算机科学 2019-05-16 Benjamin Paaßen , Claudio Gallicchio , Alessio Micheli , Alessandro Sperduti

There is enormous growth in various fields of research. This development is accompanied by new problems. To solve these problems efficiently and in an optimized manner, algorithms are created and described by researchers in the scientific…

人工智能 · 计算机科学 2022-05-27 Jyotima Patel , Biswanath Dutta

In this article we show that the reconstructions of semiconductor surfaces can be determined using a genetic procedure. Coupled with highly optimized interatomic potentials, the present approach represents an efficient tool for finding and…

材料科学 · 物理学 2009-11-10 F. C. Chuang , C. V. Ciobanu , V. B. Shenoy , C. Z. Wang , K. M. Ho

Binary Neural Networks (BNNs) have garnered significant attention due to their immense potential for deployment on edge devices. However, the non-differentiability of the quantization function poses a challenge for the optimization of BNNs,…

机器学习 · 计算机科学 2024-12-17 Xinquan Chen , Junqi Gao , Biqing Qi , Dong Li , Yiang Luo , Fangyuan Li , Pengfei Li

Being able to understand visual scenes is a precursor for many downstream tasks, including autonomous driving, robotics, and other vision-based approaches. A common approach enabling the ability to reason over visual data is Scene Graph…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Ce Zhang , Simon Stepputtis , Joseph Campbell , Katia Sycara , Yaqi Xie