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An explorative study on document type assignment of review articles in Web of Science,Scopus and journals’websites
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作者 Manman Zhu Xinyue Lu +2 位作者 Fuyou Chen Liying Yang Zhesi Shen 《Journal of Data and Information Science》 CSCD 2024年第1期11-36,共26页
Purpose:Accurately assigning the document type of review articles in citation index databases like Web of Science(WoS)and Scopus is important.This study aims to investigate the document type assignation of review arti... Purpose:Accurately assigning the document type of review articles in citation index databases like Web of Science(WoS)and Scopus is important.This study aims to investigate the document type assignation of review articles in Web of Science,Scopus and Publisher’s websites on a large scale.Design/methodology/approach:27,616 papers from 160 journals from 10 review journal series indexed in SCI are analyzed.The document types of these papers labeled on journals’websites,and assigned by WoS and Scopus are retrieved and compared to determine the assigning accuracy and identify the possible reasons for wrongly assigning.For the document type labeled on the website,we further differentiate them into explicit review and implicit review based on whether the website directly indicates it is a review or not.Findings:Overall,WoS and Scopus performed similarly,with an average precision of about 99% and recall of about 80%.However,there were some differences between WoS and Scopus across different journal series and within the same journal series.The assigning accuracy of WoS and Scopus for implicit reviews dropped significantly,especially for Scopus.Research limitations:The document types we used as the gold standard were based on the journal websites’labeling which were not manually validated one by one.We only studied the labeling performance for review articles published during 2017-2018 in review journals.Whether this conclusion can be extended to review articles published in non-review journals and most current situation is not very clear.Practical implications:This study provides a reference for the accuracy of document type assigning of review articles in WoS and Scopus,and the identified pattern for assigning implicit reviews may be helpful to better labeling on websites,WoS and Scopus.Originality/value:This study investigated the assigning accuracy of document type of reviews and identified the some patterns of wrong assignments. 展开更多
关键词 document type Web of Science SCOPUS Review article
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Hybrid Optimization Algorithm for Handwritten Document Enhancement
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作者 Shu-Chuan Chu Xiaomeng Yang +2 位作者 Li Zhang Václav Snášel Jeng-Shyang Pan 《Computers, Materials & Continua》 SCIE EI 2024年第3期3763-3786,共24页
The Gannet Optimization Algorithm (GOA) and the Whale Optimization Algorithm (WOA) demonstrate strong performance;however, there remains room for improvement in convergence and practical applications. This study intro... The Gannet Optimization Algorithm (GOA) and the Whale Optimization Algorithm (WOA) demonstrate strong performance;however, there remains room for improvement in convergence and practical applications. This study introduces a hybrid optimization algorithm, named the adaptive inertia weight whale optimization algorithm and gannet optimization algorithm (AIWGOA), which addresses challenges in enhancing handwritten documents. The hybrid strategy integrates the strengths of both algorithms, significantly enhancing their capabilities, whereas the adaptive parameter strategy mitigates the need for manual parameter setting. By amalgamating the hybrid strategy and parameter-adaptive approach, the Gannet Optimization Algorithm was refined to yield the AIWGOA. Through a performance analysis of the CEC2013 benchmark, the AIWGOA demonstrates notable advantages across various metrics. Subsequently, an evaluation index was employed to assess the enhanced handwritten documents and images, affirming the superior practical application of the AIWGOA compared with other algorithms. 展开更多
关键词 Metaheuristic algorithm gannet optimization algorithm hybrid algorithm handwritten document enhancement
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Multimodal Deep Neural Networks for Digitized Document Classification
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作者 Aigerim Baimakhanova Ainur Zhumadillayeva +4 位作者 Bigul Mukhametzhanova Natalya Glazyrina Rozamgul Niyazova Nurseit Zhunissov Aizhan Sambetbayeva 《Computer Systems Science & Engineering》 2024年第3期793-811,共19页
As digital technologies have advanced more rapidly,the number of paper documents recently converted into a digital format has exponentially increased.To respond to the urgent need to categorize the growing number of d... As digital technologies have advanced more rapidly,the number of paper documents recently converted into a digital format has exponentially increased.To respond to the urgent need to categorize the growing number of digitized documents,the classification of digitized documents in real time has been identified as the primary goal of our study.A paper classification is the first stage in automating document control and efficient knowledge discovery with no or little human involvement.Artificial intelligence methods such as Deep Learning are now combined with segmentation to study and interpret those traits,which were not conceivable ten years ago.Deep learning aids in comprehending input patterns so that object classes may be predicted.The segmentation process divides the input image into separate segments for a more thorough image study.This study proposes a deep learning-enabled framework for automated document classification,which can be implemented in higher education.To further this goal,a dataset was developed that includes seven categories:Diplomas,Personal documents,Journal of Accounting of higher education diplomas,Service letters,Orders,Production orders,and Student orders.Subsequently,a deep learning model based on Conv2D layers is proposed for the document classification process.In the final part of this research,the proposed model is evaluated and compared with other machine-learning techniques.The results demonstrate that the proposed deep learning model shows high results in document categorization overtaking the other machine learning models by reaching 94.84%,94.79%,94.62%,94.43%,94.07%in accuracy,precision,recall,F-score,and AUC-ROC,respectively.The achieved results prove that the proposed deep model is acceptable to use in practice as an assistant to an office worker. 展开更多
关键词 document categorization deep learning machine learning CLASSIFICATION DIGITIZATION
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Impact of Laboratory Value Flowsheet in Electronic Health Record (EHR) Documentation Time
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作者 Isabel Rosado Pogozelski 《Open Journal of Nursing》 2024年第1期40-50,共11页
Research on the use of EHR is contradictory since it presents contradicting results regarding the time spent documenting. There is research that supports the use of electronic records as a tool to speed documentation;... Research on the use of EHR is contradictory since it presents contradicting results regarding the time spent documenting. There is research that supports the use of electronic records as a tool to speed documentation;and research that found that it is time consuming. The purpose of this quantitative retrospective before-after project was to measure the impact of using the laboratory value flowsheet within the EHR on documentation time. The research question was: “Does the use of a laboratory value flowsheet in the EHR impact documentation time by primary care providers (PCPs)?” The theoretical framework utilized in this project was the Donabedian Model. The population in this research was the two PCPs in a small primary care clinic in the northwest of Puerto Rico. The sample was composed of all the encounters during the months of October 2019 and December 2019. The data was obtained through data mining and analyzed using SPSS 27. The evaluative outcome of this project is that there is a decrease in documentation time after implementation of the use of the laboratory value flowsheet in the EHR. However, patients per day increase therefore having an impact on the number of patients seen per day/week/month. The implications for clinical practice include the use of templates to improve workflow and documentation as well as decreasing documentation time while also increasing the number of patients seen per day. . 展开更多
关键词 Electronic Health Record EHR Laboratory Results Template documentation Time
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A Framework Based on the DAO and NFT in Blockchain for Electronic Document Sharing
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作者 Lin Chen Jiaming Zhu +2 位作者 Yuting Xu Huanqin Zheng Shen Su 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第9期2373-2395,共23页
In the information age,electronic documents(e-documents)have become a popular alternative to paper documents due to their lower costs,higher dissemination rates,and ease of knowledge sharing.However,digital copyright ... In the information age,electronic documents(e-documents)have become a popular alternative to paper documents due to their lower costs,higher dissemination rates,and ease of knowledge sharing.However,digital copyright infringements occur frequently due to the ease of copying,which not only infringes on the rights of creators but also weakens their creative enthusiasm.Therefore,it is crucial to establish an e-document sharing system that enforces copyright protection.However,the existing centralized system has outstanding vulnerabilities,and the plagiarism detection algorithm used cannot fully detect the context,semantics,style,and other factors of the text.Digital watermark technology is only used as a means of infringement tracing.This paper proposes a decentralized framework for e-document sharing based on decentralized autonomous organization(DAO)and non-fungible token(NFT)in blockchain.The use of blockchain as a distributed credit base resolves the vulnerabilities inherent in traditional centralized systems.The e-document evaluation and plagiarism detection mechanisms based on the DAO model effectively address challenges in comprehensive text information checks,thereby promoting the enhancement of e-document quality.The mechanism for protecting and circulating e-document copyrights using NFT technology ensures effective safeguarding of users’e-document copyrights and facilitates e-document sharing.Moreover,recognizing the security issues within the DAO governance mechanism,we introduce an innovative optimization solution.Through experimentation,we validate the enhanced security of the optimized governance mechanism,reducing manipulation risks by up to 51%.Additionally,by utilizing evolutionary game analysis to deduce the equilibrium strategies of the framework,we discovered that adjusting the reward and penalty parameters of the incentive mechanism motivates creators to generate superior quality and unique e-documents,while evaluators are more likely to engage in assessments. 展开更多
关键词 Electronic document sharing blockchain DAO NFT evolutionary game CMES 2024 vol.140 no.3
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Semantic Document Layout Analysis of Handwritten Manuscripts
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作者 Emad Sami Jaha 《Computers, Materials & Continua》 SCIE EI 2023年第5期2805-2831,共27页
A document layout can be more informative than merely a document’s visual and structural appearance.Thus,document layout analysis(DLA)is considered a necessary prerequisite for advanced processing and detailed docume... A document layout can be more informative than merely a document’s visual and structural appearance.Thus,document layout analysis(DLA)is considered a necessary prerequisite for advanced processing and detailed document image analysis to be further used in several applications and different objectives.This research extends the traditional approaches of DLA and introduces the concept of semantic document layout analysis(SDLA)by proposing a novel framework for semantic layout analysis and characterization of handwritten manuscripts.The proposed SDLA approach enables the derivation of implicit information and semantic characteristics,which can be effectively utilized in dozens of practical applications for various purposes,in a way bridging the semantic gap and providingmore understandable high-level document image analysis and more invariant characterization via absolute and relative labeling.This approach is validated and evaluated on a large dataset ofArabic handwrittenmanuscripts comprising complex layouts.The experimental work shows promising results in terms of accurate and effective semantic characteristic-based clustering and retrieval of handwritten manuscripts.It also indicates the expected efficacy of using the capabilities of the proposed approach in automating and facilitating many functional,reallife tasks such as effort estimation and pricing of transcription or typing of such complex manuscripts. 展开更多
关键词 Semantic characteristics semantic labeling document layout analysis semantic document layout analysis handwritten manuscripts clustering RETRIEVAL image processing computer vision machine learning
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Local-to-Global Causal Reasoning for Cross-Document Relation Extraction
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作者 Haoran Wu Xiuyi Chen +3 位作者 Zefa Hu Jing Shi Shuang Xu Bo Xu 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2023年第7期1608-1621,共14页
Cross-document relation extraction(RE),as an extension of information extraction,requires integrating information from multiple documents retrieved from open domains with a large number of irrelevant or confusing nois... Cross-document relation extraction(RE),as an extension of information extraction,requires integrating information from multiple documents retrieved from open domains with a large number of irrelevant or confusing noisy texts.Previous studies focus on the attention mechanism to construct the connection between different text features through semantic similarity.However,similarity-based methods cannot distinguish valid information from highly similar retrieved documents well.How to design an effective algorithm to implement aggregated reasoning in confusing information with similar features still remains an open issue.To address this problem,we design a novel local-toglobal causal reasoning(LGCR)network for cross-document RE,which enables efficient distinguishing,filtering and global reasoning on complex information from a causal perspective.Specifically,we propose a local causal estimation algorithm to estimate the causal effect,which is the first trial to use the causal reasoning independent of feature similarity to distinguish between confusing and valid information in cross-document RE.Furthermore,based on the causal effect,we propose a causality guided global reasoning algorithm to filter the confusing information and achieve global reasoning.Experimental results under the closed and the open settings of the large-scale dataset Cod RED demonstrate our LGCR network significantly outperforms the state-ofthe-art methods and validate the effectiveness of causal reasoning in confusing information processing. 展开更多
关键词 Causal reasoning cross document graph reasoning relation extraction(RE)
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Restoration of Folk Document Covers from the Qing Dynasty to the Republic of China
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作者 Jiao Yao Fujiang Geng +1 位作者 Huanhuan Wang Yunpei Lu 《Paper And Biomaterials》 CAS 2023年第3期66-74,共9页
The covers of booklets and books in folk documents primarily serve to protect the pages.Owing to long-term storage limitations,a considerable number of book covers have suffered varying degrees of damage.Following the... The covers of booklets and books in folk documents primarily serve to protect the pages.Owing to long-term storage limitations,a considerable number of book covers have suffered varying degrees of damage.Following the principles of restoration,a comparative analysis and restoration of folk document covers were conducted,selecting four different types of carriers from the Taihang Mountain Documents,ranging from the Qing dynasty to the Republican Era.These carriers included hemp,mulberry bark,and machinemade paper,and cotton blue cloth.Each cover type was matched with an appropriate restoration paper,and different methods were employed during the restoration process.Through restoration,the previously damaged document covers can continue to fulfill their role in protecting the books,thereby extending the lifespan of these four folk documents. 展开更多
关键词 RESTORATION folk documents COVERS
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Functions of Karez to Xinjiang Agriculture in the Qing Dynasty from the Perspective of Historical Documents
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作者 Danyang GONG 《Asian Agricultural Research》 2023年第3期70-71,共2页
Desertification is increasingly serious in Xinjiang,and the construction of water conservancy is a precondition for the development of agriculture.The main project for the development of agriculture and water conserva... Desertification is increasingly serious in Xinjiang,and the construction of water conservancy is a precondition for the development of agriculture.The main project for the development of agriculture and water conservancy in Xinjiang is to build Karez,which played a vital role in the development of Xinjiang agriculture in the Qing Dynasty.It has been recorded many times in historical documents of the Qing Dynasty,such as Lin Zexu s Diary,Tao Baolian s Diary,Xinjiang Atlas and Zuo Zongtang s Memorial to the Emperor,etc.,which recorded the situation and historical origin of Karez.Karez made a significant contribution to the development of agriculture in the Qing Dynasty.It increased the cultivated land in Xinjiang at that time,and increased the types and yields of crops.It is conducive to the stability and development of Xinjiang s economy.Until today,Karez is still an important water source for agricultural irrigation in Xinjiang. 展开更多
关键词 KAREZ Historical documents in the Qing Dynasty Xinjiang agriculture
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Human Rights in Civil Judicial Documents:Conception and Function
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作者 郑若瀚 《The Journal of Human Rights》 2023年第4期851-868,共18页
Traditional human rights theory tends to hold that human rights should be aimed at defending public authority and that the legal issue of human rights is a matter of public law.However,the development of human rights ... Traditional human rights theory tends to hold that human rights should be aimed at defending public authority and that the legal issue of human rights is a matter of public law.However,the development of human rights concepts and practices is not just confined to this.A textual search shows that the term“human rights”exists widely in China’s civil judicial documents.Among the 3,412 civil judicial documents we researched,the concept of“human rights”penetrates all kinds of disputes in lawsuits,ranging from property rights,contracts,labor,and torts to marital property,which is embedded in both the claims of the parties concerned and the reasoning of judges.Human rights have become the discourse and yardstick for understanding and evaluating social behavior.The widespread use of the term“human rights”in civil judicial documents reflects at least three concepts related to human rights:first,the rights to subsistence and development are the primary basic human rights;second,the judicial protection of human rights is a bottom-line guarantee;third,the protection of human rights aims to achieve equal rights.Today,judges quote the theory of human rights in judicial judgments from time to time,evidencing that human rights have a practical function in judicial adjudication activities,and in practice this is mainly manifested in declaring righteous values and strengthening arguments with the values and ideas related to human rights,using the provisions concerning human rights in the Constitution to interpret the constitutionality,and using the principles of human rights to interpret blurred rules and rank the importance of different rights. 展开更多
关键词 human rights concept of human rights civil judicature judicial documents judicial reasons
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Fostering Critical Thinking Skills in the EFL College-Level Classroom Through Online Collaborative Document Tools
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作者 JIANG Fangzhou 《Sino-US English Teaching》 2023年第9期365-369,共5页
This paper explores the potential of applying online collaborative documents to foster critical thinking skills in EFL college-level classrooms.Considering the limitations of traditional teacher-centered approaches an... This paper explores the potential of applying online collaborative documents to foster critical thinking skills in EFL college-level classrooms.Considering the limitations of traditional teacher-centered approaches and the need for innovative methods,the study examines the integration of online collaborative tools,using Tencent Docs as an example.The discussion highlights the importance of critical thinking in the academic and professional spheres and introduces the concept of online collaborative documents for enhancing this cognitive skill.Through a detailed exploration,the paper presents a model of employing collaborative documents within a college English class,demonstrating how students collaboratively learning an article.Then,the paper discusses the pros and cons of employing this technology in classroom.The conclusion emphasizes the transformative potential of integrating technology into pedagogy and its role in creating a dynamic learning environment.The paper underscores the importance of striking a balance between technology and traditional methods,foreseeing avenues for further research and development. 展开更多
关键词 critical thinking skills online collaborative document tools EFL at college level
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Fully Automated Paper Document Sorting Robot Design
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作者 Guo-Long Yang Biao-Hua Zhang 《Journal of Electronic Research and Application》 2023年第6期1-9,共9页
A fully automated paper document sorting robot was developed in this project.This robot classifies documents efficiently and accurately.The objective of this project was to improve the efficiency of classifying or sor... A fully automated paper document sorting robot was developed in this project.This robot classifies documents efficiently and accurately.The objective of this project was to improve the efficiency of classifying or sorting paper documents,reduce costs,and save time.The robot can classify documents according to user-defined rules,such as keywords,dates,serial numbers,bar codes,and the meaning of paragraphs.Since it can classify or sort documents intelligently,it can complete large-scale document classification quickly.The robot is constructed using an aluminum profile to create a box-type truss gantry structure frame.It was built on the LubanCat 4 motherboard and controlled through Python language programming.Driven by a stepper motor to move the manipulator.The camera module is combined with an artificial intelligence algorithm to recognize paper in real time,and the text is recognized after taking pictures of the paper.The sorting function is performed by several sensors.In addition,a web-based human-computer interaction platform was developed using the Flask web framework in Python.Users could access this platform in a variety of ways,allowing them to easily and swiftly configure parameters and send operational instructions to perform various functions. 展开更多
关键词 Paper documents Sorting robot PYTHON Human-computer interaction
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行政规范性文件备案审查中比例原则的适用 被引量:1
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作者 罗文燕 《浙江工商大学学报》 北大核心 2024年第2期87-98,共12页
行政规范性文件备案审查是一种事后的合法性监督制度。作为方法论意义上的比例原则引入行政规范性文件备案审查,旨在改善行政规范性文件备案审查的方法,提升行政规范性文件备案审查的实效。适当性原则审查的核心是手段与目的关联性。关... 行政规范性文件备案审查是一种事后的合法性监督制度。作为方法论意义上的比例原则引入行政规范性文件备案审查,旨在改善行政规范性文件备案审查的方法,提升行政规范性文件备案审查的实效。适当性原则审查的核心是手段与目的关联性。关联性是指手段能够正向推进目的得以实现的单向关系。必要性原则审查的核心是手段与结果的关联性,最小损害是确定关联性的基本要素。均衡性原则审查的核心是手段与结果的合比例性,利益衡量是确定合比例性的基本方法。在行政规范性文件备案审查中,事实审查有助于提升行政规范性文件的“科学性”。对因紧急状态而制定的行政规范性文件进行备案审查,可以适度降低比例原则的要求。 展开更多
关键词 行政规范性文件 备案审查 比例原则 事实审查 紧急状态
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日本“新安保三文件”下的强军计划论析 被引量:1
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作者 王瑞 《太平洋学报》 北大核心 2024年第2期29-42,共14页
随着岸田政府在2022年12月出台“新安保三文件”,日本的军力建设迎来重大转变。日本打破了国防预算“GDP 1%”原则以及“专守防卫”原则,试图大幅提升国防预算并全面强化军力,以期成为“能战”的军事强国。“新安保三文件”的出台动因... 随着岸田政府在2022年12月出台“新安保三文件”,日本的军力建设迎来重大转变。日本打破了国防预算“GDP 1%”原则以及“专守防卫”原则,试图大幅提升国防预算并全面强化军力,以期成为“能战”的军事强国。“新安保三文件”的出台动因有多方面,包括日本对周边国家“威胁认知”的偏差,日本配合美国的军事战略、加强日美安全合作的需要,以及日本国内更加重视国家安全问题。在发展前景上,日本强军计划并非完全乐观,其国防预算增长计划有可能无法得到全面落实、“和平主义”思潮以及“募兵难”问题也会对日本的“军事大国化”起到一定程度的制约作用。 展开更多
关键词 岸田政府 “新安保三文件” 自卫队 强军
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关于加强我国古籍保护法治建设的若干思考
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作者 张若冰 邱奉捷 +1 位作者 赵文友 胡平 《国家图书馆学刊》 北大核心 2024年第1期4-12,共9页
做好古籍保护与利用,对赓续中华文脉、弘扬民族精神、增强国家文化软实力、建设社会主义文化强国具有重要意义。近年来,国家高度重视古籍工作,古籍保护立法工作已经取得一定成效,但仍存在文物保护相关法律法规无法完全适用、古籍相关规... 做好古籍保护与利用,对赓续中华文脉、弘扬民族精神、增强国家文化软实力、建设社会主义文化强国具有重要意义。近年来,国家高度重视古籍工作,古籍保护立法工作已经取得一定成效,但仍存在文物保护相关法律法规无法完全适用、古籍相关规定较为宏观或效力较低、实践中仍有大量实际问题需要法律保障等问题。基于此,建议优先选择行政法规作为古籍保护立法的突破口,尽快推动《古籍保护条例》出台;平衡与已有法律法规和政策文件之间的关系;针对古籍保护利用中的实际需求和问题进行立法。表2。参考文献14。 展开更多
关键词 古籍保护 法律法规 政策文件
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基于词-主题-文本异质网络的短文本分类方法
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作者 徐涛 赵星甲 卢敏 《计算机应用与软件》 北大核心 2024年第1期146-152,182,共8页
针对现有分类方法未考虑长距离词的语义相关性和文本间潜在主题共享的问题,提出一种基于词-主题-文本异质网络(WTDHN)的短文本分类方法。通过Word2vec训练词的上下文语义向量;构建词相关性矩阵以充足的词共现信息增强短文本各级别语义学... 针对现有分类方法未考虑长距离词的语义相关性和文本间潜在主题共享的问题,提出一种基于词-主题-文本异质网络(WTDHN)的短文本分类方法。通过Word2vec训练词的上下文语义向量;构建词相关性矩阵以充足的词共现信息增强短文本各级别语义学;构建以词、主题和文本为节点的异质网络,并采用图卷积学习节点之间的高阶邻域信息,丰富短文本语义。相较于基准分类模型,该方法在五个公开短文本数据集上的分类准确率平均提高1.56%。 展开更多
关键词 词-主题-文本异质网络 词共现 文本-主题分布 短文本分类
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民国时期文献普查工作实践与思考——以中国科学院文献情报中心为例
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作者 莫晓霞 杨华 《图书馆研究与工作》 2024年第3期59-65,共7页
文章以中国科学院文献情报中心对14 000余种民国时期文献开展普查工作的实践及经验为基础,介绍了民国时期文献普查工作中存在的问题和解决方法,如分阶段开展普查工作、编目实践中增加著录字段等,进而提出需要重视典藏史、重视文献的破... 文章以中国科学院文献情报中心对14 000余种民国时期文献开展普查工作的实践及经验为基础,介绍了民国时期文献普查工作中存在的问题和解决方法,如分阶段开展普查工作、编目实践中增加著录字段等,进而提出需要重视典藏史、重视文献的破损定级,将文献保护作为普查工作的第一要务的观点,并要从多方面培养普查人员的民国时期文献鉴藏能力,结合馆藏史开发馆藏以推进后期的文献保护和开发工作。 展开更多
关键词 民国时期文献 普查 文献保护 著录规则
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2024年中央一号文件的突出亮点 被引量:2
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作者 姜长云 《农村金融研究》 北大核心 2024年第2期3-13,共11页
2024年中央一号文件以习近平新时代中国特色社会主义思想为指导,为2024年乃至今后一段时期的“三农”工作进行了系统部署和具体安排,呈现了一系列突出亮点。即:凸显了贯彻中央经济工作会议精神和深化对“三农”工作的规律性认识,明确了... 2024年中央一号文件以习近平新时代中国特色社会主义思想为指导,为2024年乃至今后一段时期的“三农”工作进行了系统部署和具体安排,呈现了一系列突出亮点。即:凸显了贯彻中央经济工作会议精神和深化对“三农”工作的规律性认识,明确了学习运用“千万工程”经验引领乡村全面振兴的要求,重视运用战略思维和改革创新,统筹强化软政策引领与硬政策支撑作用,坚持守正创新,确保国家粮食安全有新招,确保不发生规模性返贫底线更明确措施更有力,强调以坚持“三个提升”为重点建设宜居宜业和美乡村。 展开更多
关键词 中央一号文件 “三农”工作 推进乡村全面振兴 “千万工程”
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不同分子质量水溶性壳聚糖在纸质文献加固中的应用研究
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作者 刘建安 葛鸽 +1 位作者 王欢欢 樊慧明 《中国造纸》 CAS 北大核心 2024年第5期116-123,共8页
本研究采用乙酸酐制备了不同分子质量的水溶性壳聚糖(WSC-3、WSC-10、WSC-20、WSC-30和WSC-60)并用作修复液,探究其对纸质文献加固及耐老化的效果。结果表明,与未经加固处理的纸张(原纸)相比,采用不同分子质量的水溶性壳聚糖加固处理后... 本研究采用乙酸酐制备了不同分子质量的水溶性壳聚糖(WSC-3、WSC-10、WSC-20、WSC-30和WSC-60)并用作修复液,探究其对纸质文献加固及耐老化的效果。结果表明,与未经加固处理的纸张(原纸)相比,采用不同分子质量的水溶性壳聚糖加固处理后,纸张的强度性能有所提升,白度下降幅度较小,色差变化较小,pH值和碱储量均增加。纸张加速老化后,与原纸相比,加固处理后纸张的强度性能下降幅度明显较小,其中WSC-30加固处理后纸张的抗张指数、撕裂指数、零距抗张强度的保留率分别提升了9.7、7.4、4.5个百分点,外观形貌、白度和色差等相差较小。 展开更多
关键词 水溶性壳聚糖 分子质量 纸质文献 增强加固
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基于融合矩阵的文本相似度计算实现检索结果聚类
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作者 赵悦阳 崔雷 《医学信息学杂志》 CAS 2024年第3期58-64,共7页
目的/意义弥补医学文本语义表示方面的不足,实现PubMed数据库检索结果聚类。方法/过程采用Jaccard系数和TF-IDF构建融合矩阵方法,建立短语间、文档间、短语与文档内容间的相似性关系融合矩阵,训练聚类算法,将PubMed数据库检索结果集合分... 目的/意义弥补医学文本语义表示方面的不足,实现PubMed数据库检索结果聚类。方法/过程采用Jaccard系数和TF-IDF构建融合矩阵方法,建立短语间、文档间、短语与文档内容间的相似性关系融合矩阵,训练聚类算法,将PubMed数据库检索结果集合分组,随后生成类别标签,描述每一类簇文档的含义。结果/结论基于融合矩阵的聚类效果较好,提取出描述类别的高频词能很好地区分类别含义,对检索结果文本聚类任务有效。 展开更多
关键词 文献检索 文本聚类 融合矩阵 文本相似度
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