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LLaMA-LoRA Neural Prompt Engineering:A Deep Tuning Framework for Automatically Generating Chinese Text Logical Reasoning Thinking Chains

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Data Intelligence 2024年第2期6卷 375-408页

作者： Songlin Chen Weicheng Wang Xiaoliang Chen Peng lu Zaiyan Yang yajun du School of Computer and Software Engineering Xihua Universitychengdu 610039P.R.china Department of Computer Science and Operations Research University of MontrealMontrealQC H3C3J7Canada College of Artificial intelligence Beijing University of Posts and TelecommunicationsBeijing100876China

The exption of Chinese natural language processing(NLP)has stimulated research in the broader NLP ***,existing large language models have limitations in comprehending and reasoning in *** paper addresses these limitations by enhancing Chinese language models comprehension and reasoning capabilities while minimizing resource *** propose LLaMA-LoRA,a neural prompt engineering framework that builds upon the LLaMA-13B model and incorporates the Low-Rank Adaptation(LoRA)of Large Language Models technique for ***-of-Thought(CoT)are crucial for generating intermediate reasoning chains in language models,but their effectiveness can be limited by isolated language *** reasoning resulting from conventional prompts negatively impacts model *** prompts are introduced to encourage reasoning chain generation and accurate answer *** the model with an extensive corpus of Chinese CoT data enhances its comprehension and reasoning *** LLaMA-LoRA model demonstrates exceptional performance across numerous Chinese language tasks,surpassing benchmark performance achieved by related language models such as GPT-3.5,Chat-GLM,and OpenAssistant,delivering accurate,comprehensive,and professional *** availability of our open-source model code facilitates further research in the field of Chinese text logical reasoning thinking chains.

关键词： Chinese natural language processing Neural prompt engineering Large language models Low-Rank adaptation Chain-of-thought

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面向方面级情感分析的交互式图卷积网络

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西华大学学报（自然科学版） 2024年第3期43卷 8-17,53页

作者：朱忆红陈晓亮付俊森杜亚军西华大学计算机与软件工程学院四川成都610039

针对现有的基于图网络的情感分析模型在处理方面短语的内部语义和不同方面之间的情感交互关系时准确度不高等局限性,文章提出一种面向方面级情感分析的交互式图卷积网络模型。首先,利用句子中上下文和方面词之间的句法依存关系,在方面... 详细信息

针对现有的基于图网络的情感分析模型在处理方面短语的内部语义和不同方面之间的情感交互关系时准确度不高等局限性,文章提出一种面向方面级情感分析的交互式图卷积网络模型。首先,利用句子中上下文和方面词之间的句法依存关系,在方面短语内部模块中整合各方面短语之间的内部语义相关性,并将不同方面之间的情感交互关联起来,生成4种类型的邻接矩阵图,实现对方面短语内部语义性和句子中不同方面之间情感交互关系的建模。其次,构建一个方面交互图,用于跨方面关系的建模,以解决不同方面之间的情感交互。最后,在图卷积网络中设置一个全局节点,进一步解决句子中存在多个方面词时精度浮动的问题。在4个公开数据集上的结果表明,该模型在准确率和F1值上均有所提升。

关键词：方面级情感分析图卷积网络短语结构树

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Three-dimensional parametric contact analysis of planetary roller screw mechanism and its application in grouping for selective assembly

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Frontiers of Mechanical Engineering 2024年第1期19卷 53-72页

作者： Huilin HE Peitang WEI Huaiju LIU Xuesong du Rui HU Genshen LIU yajun WU State Key Laboratory of Mechanical Transmission for Advanced Equipment Chongqing UniversityChongqing 400044China Taiyuan Heavy Machinery Group Co. Ltd.Taiyuan 030024China

The planetary roller screw mechanism(PRSM)is a novel precision transmission mechanism that realizes the conversion between linear and rotary *** contact characteristics of helical surfaces directly determine PRSM’s performance in load-carrying capacity and transmission ***,studying the contact characteristics of PRSM forms the fundamental basis for enhancing its transmission *** this study,a three-dimensional parametric analysis method of contact characteristics is proposed based on the PRSM meshing principle and PyVista(a high-level API to the Visualization Toolkit).The proposed method considers the influence of machining errors among various thread *** effects of key machining errors on contact positions and axial clearance,as well as their sensitivities,are *** excellent solution accuracy,this method exhibits higher calculation efficiency and stronger robustness than the analytical and numerical meshing *** influence of nominal diameter and pitch errors of the screw,roller,and nut on the axial clearance follows a linear relationship,whereas flank angle errors have negligible effects on the axial *** corresponding influence coefficients for these three machining errors on the axial clearance are 0.623,0.341,and *** variations in contact positions caused by individual errors are *** angle errors and roller diameter errors result in linear displacements of the contact points,whereas pitch errors cause the contact points to move along the arc of the roller *** on the proposed threedimensional parametric contact characteristics analysis method,the Fuzzy C-Means clustering algorithm considering error sensitivity is utilized to establish a component grouping technique in the selective assembly of critical PRSM components,ensuring the rational and consistent clearances based on the given component’s machining *** study provides effective guidance for analyzing conta

关键词： planetary roller screw mechanism(PRSM) contact position axial clearance machining error grouping for selective assembly

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Supplementation of Lycium barbarum residue increases the growth rate of Tan sheep by enhancing their feed intake and regulating their rumen microbiome and metabolome

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Journal of Integrative Agriculture 2024年第9期23卷 3129-3144页

作者： yajun Zhang Xiao Chang Bing Wang Dawei Wei Rongzhen Zhong Yansheng Guo Min du Guijie Zhang College of Forestry and Prataculture Ningxia UniversityYinchuan 750021China Jilin Provincial Key Laboratory of Grassland Farming Northeast Institute of Geography and AgoecologyChinese Academy of SciencesChangchun 130102China State Key Laboratory of Animal Nutrition/College of Animal Science and Technology China Agricultural UniversityBeijing 100193China College of Animal Science and Technology Ningxia UniversityYinchuan 750021China Nutrigenomics and Growth Biology Laboratory Department of Animal SciencesWashington State UniversityPullmanWA 99164USA

Lycium barbarum residue(LBR),a by-product of *** processing,is packed with bioactive components and can be potentially utilized as a feed additive in animal ***,the fundamental understanding of its effectiveness on livestock animals is still lacking,particularly in *** explore the effects of LBR on the growth performance,rumen fermentation parameters,ruminal microbes and metabolites of Tan sheep,sixteen fattening rams(aged 4 mon)were fed a basal diet(CON,n=8)or a basal diet supplemented with 5%LBR(LBR,n=8).The experiment lasted for 70 d,with 10 d adaptation period and 60 d treatment *** results showed that the LBR enhanced the average daily feed intake,average daily gain(Pduced the relative abundances of Oscillospira and Succinivibrio(P<0.05).The LBR altered the ruminal metabolome(P<0.01)by increasing the abundances of ruminal metabolites involved in amino acids(e.g.,L-proline,L-phenylalanine,L-lysine,and L-tyrosine),pyrimidine metabolism(e.g.,uridine,uracil,and thymidine),and microbial protein synthesis(e.g.,xanthine and hypoxanthine).In conclusion,LBR had positive effects on the growth rate of Tan sheep as well as on rumen fermentation parameters,rumen microbiome and rumen metabolome.

关键词： Lycium barbarum residue rumen microbiome metabolomics growth performance Tan sheep

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Cascaded channel decoupling based solution for RIS regulation matrix

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Intelligent and Converged Networks 2024年第1期5卷 19-27页

作者： yajun Zhao Beijing Institute of Technology Beijing 100081China ZTE Corporation Beijing 100029China

This article presents a pioneering solution to address the challenges of reconfigurable intelligent surface(RIS),employing a cascaded channel decoupling *** novel method streamlines the RIS regulation matrix by dividing the process of electromagnetic wave modulation into two separate sub-processes:virtual receiving response and virtual regular transmission,resulting in the decoupling of the RIS cascaded ***,the paper explores the practical implementation of this channel decoupling method in two typical scenarios,including single-user and multi-user access,offering detailed insights into its *** numerical simulations,the article demonstrates the effectiveness and reduced complexity of the proposed scheme in enhancing the efficiency of the RIS regulation matrix.

关键词： reconfigurable intelligent surface channel decoupling receiving matrix transmitting matrix

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A brand new green coating technology for realizing the regulation of spherical propellant energy release process

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Defence Technology（防务技术） 2024年第6期36卷 78-94页

作者： Wenhao Fan yajun Ding Zhongliang Xiao School of Chemistry and Chemical Engineering Nanjing University of Science and TechnologyNanjing210094China Key Laboratory of Special Energy Materials Nanjing University of Science and TechnologyMinistry of EducationNanjing 210094China

To achieve the controllable release of energy of nitrocellulose-based propellants,this paper combines the cellulose-based nanocomposites aqueous coating(Surelease®-NC)with fluidized bed coating equipment to successfully prepare the coated spherical propellant for the first *** effects of fluidized bed coating temperature,air velocity,flow speed and atomization pressure on the adhesion rate,coating integrity and coating uniformity of the coated spherical propellant were investigated,and the preparation of coated spherical propellant with homogeneous size and structural integrity was achieved for the first *** microscopic morphology,chemical structure,water vapor adsorption behavior,combustion performance,and ageing resistance property of the coated spherical propellant were systematically investigated by,Fourier transforms infrared spectroscopy(FTIR),Micro confocal raman spectrometer,field scanning electron microscopy(SEM),dynamic vapor adsorption techniques,and closed bomb test,confirming the surface core-shell structure and the tightly bonded interfacial structure of coated spherical ***,the coated spherical propellant has good hygroscopic,excellent progressive burning and long storage stability.

关键词： Nanocomposites aqueous coating Fluidized bed coating equipment Coated spherical propellant Controllable release of energy Long storage stability

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Implicit Community Discovery Based on Microblog Theme Homogeneity

Implicit Community Discovery Based on Microblog Theme Homoge...

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作者： Zefen Sun yajun du Xiaoliang Chen Chunjia Wang School of Computer and Software Engineering Xihua University

With the rapid development of various social platforms,social networks have accumulated more and more *** huge and complex data contain valuable information in many *** is of far-reaching significance to conduct statistical analysis of these data and dig out valuable information and apply it in real *** on the homogeneity of social networks,our paper proposes a framework of discovery algorithms based on the homogeneity of microblogs to realize the theme community discovery of microblog social ***,the data set is preprocessed,the invalid data is removed and classified by microblog ***,the LDA model is used to extract the topic of microblog user blogs to describe the characteristics of microblog ***,two users are calculated based on the theme *** homogeneity measure between them is used to represent the relationship of social ***,the community of the implicit social network is realized through unsupervised algorithms to build communities with the same interest as the *** order to verify the validity of our proposed algorithm framework,this paper uses data sets from microblog network to conduct *** experimental results show that the algorithm effectively combines the homogeneity measure of the network and has achieved very good results in the implicit community discovery.

关键词： Homogeneity measure Microblog theme homogeneity LDA model Community discovery Unsupervised clustering

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Predict Individual Retweet Behavior Based on Multi-feature

Predict Individual Retweet Behavior Based on Multi-feature

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作者： Chunjia Wang Yongquan Fan yajun du Zefen Sun School of Computer and Software Engineering Xihua University

With the rapid development of social media,more and more people get information from social *** retweet prediction task helps to study the process of information dissemination on social *** methods take into account text features and ignore user’s sentiments and *** history tweets tweeted by the user not only reflect the user’s sentiments that the user tends to express on social media,but also shows the user’s *** this work,we used a deep learning method to extract features from user profiles,user history,user network,target tweet,then we used these features to predict whether a tweet will be retweeted by a *** results on dataset show that the proposed model can effectively predict the retweet behavior of users.

关键词： Deep learning Retweet behaviour Prediction model Social media

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晋北铝基地开发建设方案探讨

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轻金属 2003年第7期 6-9页

作者：杜雅君沈阳铝镁设计研究院辽宁沈阳110001

晋北铝土矿资源丰富 ,已发现 4 4个矿床 (点 ) ,其中上储量平衡表 2 1个矿区 (地质储量近 2亿t,A/S 5.9) ,集中分布于北东向展布的三个成矿带内 ,形成以宁武 -静乐为中心 ,以河曲 -兴县和五台天和 -白家庄为两翼的“川”字型资源格局 ;... 详细信息

晋北铝土矿资源丰富 ,已发现 4 4个矿床 (点 ) ,其中上储量平衡表 2 1个矿区 (地质储量近 2亿t,A/S 5.9) ,集中分布于北东向展布的三个成矿带内 ,形成以宁武 -静乐为中心 ,以河曲 -兴县和五台天和 -白家庄为两翼的“川”字型资源格局 ;晋北交通发达 ,煤、水、电资源充裕 ,熔剂灰岩已详查落实近 0 .7亿t(其中工业储量近 0 .2亿t) ,铝厂建设条件已成熟 ;晋北现实铝工业规模应为 :铝矿山 2 0 0万t/a,熔剂灰岩矿山 10 0万t/a ,氧化铝厂 10 0万t/a,电解铝厂 50万t/a;氧化铝生产工艺推荐串联法 ,可分两步建设 :一期以 4 0万t/a烧结法起步 ,二期续建拜耳法扩大生产 ,最终形成 10 0万t/a串联法流程系统 ;矿山开采可实行“以国有机采大矿山为主导 ,以工农联办矿为纽带 ,以市场和铝厂生产计划为导向 ,定点收购民采矿”新模式 ;铝土矿开发应以第Ⅰ、Ⅲ成矿带为重心 ,选择 4个首采矿区和 5个规划矿区 ,共获 0 .6亿t可采储量 ,可供矿

关键词：铝土矿资源矿石工业性能工业布局生产工艺矿山开采建设方案

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Underwater RGB-D imaging system with millimetric precision

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Science China(Information Sciences) 2024年第10期67卷 383-385页

作者： yajun GAO Yang CONG Xu TANG Mingxue LI State Key Laboratory of Robotics Shenyang Institute of Automation Chinese Academy of Sciences Institutes for Robotics and Intelligent Manufacturing Chinese Academy of Sciences University of Chinese Academy of Sciences College of Automation Science and Engineering South China University of Technology

In recent years, underwater fine three-dimensional reconstruction technology has emerged as a focal point in research, exhibiting extensive potential applications, particularly in underwater archaeology and resource e... 详细信息

关键词： SINGLE CAMERA

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