Differentiated digital library evaluation in a hierarchical model stemming from its operational scope and complexity

Digital libraries are complex systems and this brings difficulties for their evaluation. This paper proposes a hierarchical model to solve this problem, and puts the entangled matters into a clear-layered structure. Firstly, digital libraries(DLs thereafter)are classified into 5 groups in ascending gradations, i.e. mini DLs, small DLs, medium DLs,large DLs, and huge DLs by their scope of operation. Then, according to the characteristics of DLs at different operational scope and level of sophistication, they are further grouped into unitary DLs, union DLs and hybrid DLs accordingly. Based on this simulated structure,a hierarchical model for digital library evaluation is introduced, which evaluates DLs differentiatingly within a hierarchical scheme by using varying criteria based on their specific level of operational complexity such as at the micro-level, medium-level, and/or at the macro-level. Based on our careful examination and analysis of the current literature about DL evaluation system, an experiment is conducted by using the DL evaluation model along with its criteria for unitary DLs at micro-level. The main contents resulting from this evaluation experimentation and also those evaluation indicators and relevant issues of major concerns for DLs at medium-level and macro-level are also to be presented at some length.

A multidimensional and hierarchical model of library mobile service quality

Purpose:Based on the understanding of the characteristics of mobile services(m-services)provided by libraries,we attempt to develop a multidimensional and hierarchical model and a specifically designed measurement scale for the assessment of libraries' m-service quality.Design/methodology/approach:The research has been conducted sequentially in two stages.At the first stage,a multidimensional and hierarchical model of library m-service quality and a measurement scale are developed through literature review and focus group interviews.At the second stage the model is tested using partial disaggregation technique for an analysis of the data collected from over 400 library users in 3 Chinese universities.Findings:The proposed model is shown to fit the data well.The empirical analysis provides strong support for the model,which includes 4 dimensions(service environment,service interaction,information control and service effect) and 12 corresponding sub-dimensions.Research limitations:The sample size needs to be enlarged and the user types need to be expanded to make the sample more representative.Practical implications:The study provides a conceptual framework and measurement tool that can help library managers understand the users' needs in the context of mobile network environment,and boost their libraries' competitiveness by carrying out better services to meet the user demands.Originality/value:The proposed model and measurement scale specifically designed for the assessment of libraries' m-service quality fully reflect the hierarchical structure of libraries' m-service quality.In addition,by using partial disaggregation technique for model testing,we believe our research can serve as a practical reference to those engaged in the development and examination of a multidimensional and hierarchical model.

Research on the One-Stop Information Service Model for University Library

Following the advent of and continuous progress of technology,computer network and information management have gradually being incorporated into the daily operation and management of university libraries all around the world.The service system of university libraries has also transformed from the conventional reference consulting model into a knowledge-based service model.This transformation has improved the professionalism and individualism of university libraries.Therefore,establishing a competent one-stop information service model has significant and important values.In this work,we analyzed the basic functionalities and the feasibility of one-stop information service model for university libraries.We also discussed in details the construction methodology for different modes,for reference only.

A study on service quality evaluation of digital libraries in China based on tetra-class model

Purpose: This study intends to evaluate the service quality of academic digital libraries(DLs)in China. By utilizing tetra-class model which concentrates on categorizing services according to their contributions to user satisfaction, this paper attempts to visually categorize the specific DL service elements to reveal their present performances, and then further explain the categorizing variations among different groups of users to discover the user preference.Design/methodology/approach: This paper carries out a survey to evaluate user experience on 27 typical DL services summarized from our investigations of representative Chinese university DLs. Based on the five-point Likert-type scale evaluation, the users’ attitudes toward specific service element are divided into negative and positive dimensions. Afterwards,a correspondence analysis is applied to calculate the contributions to satisfaction and dissatisfaction of each service element based on tetra-class model. As a result, the DL service elements of Chinese academic libraries are classified into four categories(i.e. Basic, Secondary,Plus, and Key). Finally, we compared the categorizing variations.Findings: The results show that the DL service elements of Chinese academic libraries are all distributed in Basic and Key services regarding information retrieval and informationorganizing; 80% of the interaction services elements are Plus services, while 50% of the Secondary services are information-providing services. The results also reveal that service categorization is obviously influenced by the users’ education background, especially their disciplines. Furthermore, the users who are older, more highly-educated, or studying in higher reputation universities are more likely to evaluate DL services as either critical or useless.Research limitations: Tetra-class model cannot reveal the interplay among the DL service elements. In addition, the user segmentation in our studies is limited to the sample structure.Practical implications: This empirical study focuses on the evaluation of DL services of academic libraries in China, the analyses of their current performances could provide useful reference for the assessment of other types of Chinese DLs. Moreover, the consideration of user characteristics(gender, age, and education background, etc.) in the DL evaluation would help librarians improve DL services to meet the users’ various needs in teaching and doing scientific research.Originality/value: Different from the frequently-used factor analysis which focuses on the relationship among factors and user satisfaction, this paper tries to use and compare element distributions of different user segments while focusing on various service objectives. Factor analysis shows some flaws as used to measure the element with selected indicators, for it ignores the fact that the indicators which measure the same factor would have different degrees of impacts on user satisfaction. However, the tetra-class model can better visually analyze the performance of each DL service element from its contributions to satisfaction and dissatisfaction, which would help librarians to better understand users’ need and offer DL services more efficiently.

Establishment and Application of Cryptographic Library Model

When doing reverse analysis of program’s binary codes, it is often to encounter the function of cryptographic library. In order to reduce workload, a cryptographic library model has been designed by analysts. Models use formalized approach to describe the frame of cryptology and the structure of cryptographic function, complete the mapping from cryptographic function property to its architecture, and accomplish the result presentation of data analysis and mapping at last. The model can solve two problems: the first one is to know the hierarchy of the cryptographic function in the library well;the second one is to know some kinds of information, such as related cryptology algorithm and protocol, etc. These function implements can display the result graphically. The model can find relevant knowledge for the analysts automatically and rapidly, which is helpful to the learning of the overall abstract structure of cryptology.

Exploration on the Construction of Mobile Library Service Quality Optimization Model

The emergence of science and technology and big data has promoted the emergence of major resource platforms.Mobile libraries have emerged as the world progresses.Users have put forward high requirements for service quality in the process of using mobile libraries.Optimizing service quality is one of the important topics of mobile libraries today.In our paper the mobile library service quality optimization model is constructed from three aspects,including the starting point of the optimization model,the optimization content,and the final construction.While keeping up with the pace of the times,we will meet the needs of users and enhance user satisfaction in order to promote the development and advancement of mobile libraries.

Behavioral Intention to Continue Using a Library Mobile App

To meet the needs of today’s library users,institutions are developing library mobile apps(LMAs),as their libraries are increasingly intelligent and rely on deep learning.This paper explores the influencing factors and differences in the perception of LMAs at different time points after a user has downloaded an LMA.A research model was constructed based on the technology acceptance model.A questionnaire was designed and distributed twice to LMA users with an interval of three months to collect dynamic data.The analysis was based on structural equation modeling.The empirical results show that the perceived ease of use,the perceived usefulness,the social influence,and the facilitating conditions affected the users’behavioral intention,but their impacts were different at different times.As the usage time increases,the technology acceptance model is still universal for understanding the user perception of LMA.In addition,two extended variables(social impact and convenience)also affect the user’s behavior intention.User behavior is dynamic and changed over time.This study is important both theoretically and practically,as the results could be used to improve the service quality of LMAs and reduce the loss rate of users.Its findings may help the designers and developers of LMAs to optimize them from the perspective of a user and improve the service experience by providing a deeper understanding of the adoption behavior of information systems by LMA users.

Structural analysis and molecular modeling of twoantitrichosanthin IgE clones from phage antibody library

Recently we constructed a murine IgE phage surfacedisplay library and screened out two IgE (Fab) cloneswith specific binding activity to Trichosanthin (TCS). Inthis work, the Vε and Vκ genes of the two clones weresequenced and their putative germline gene usages werestudied. On the basis of the known 3D structure of Trichosanthin and antibody, molecular modeling was carriedout to study the antigen-antibody interaction. The possible antigenic determinant sites on the surface of TCSrecognized by both the clones were analyzed, and the reaction forces between TCS and two Fab fragments werealso analyzed respectively.

基于Modelica组件的批量生成系统

针对Modelica外部语言函数建模操作难度大、效率低,提出了基于Modelica组件的外部生成方法。结合动态库转换和mo文件描述方式实现将以动态库方式提供的外部函数制作成Modelica组件,通过生成新的动态库对原始动态库函数进行封装,实现编译器兼容和接口转换。实验表明,该方法便于计算机执行,代替人工,大大提高了转换效率,便于在Modelica仿真平台上进行跨语言的建模仿真。

基于群智图谱的图书馆智慧阅读推广服务模式研究

文章概述了群智图谱的概念和特征,对当前图书馆阅读推广服务研究现状进行了综述,从构建本体、抽取实体关系、建立映射、知识融合、群体验证五个方面设计了基于群智图谱的图书馆智慧阅读推广服务模型,并指出了该模型的具体应用,最后从塑造沉浸式阅读场景、智慧阅读指导服务、个性化阅读方案制定等方面提出了基于群智图谱的图书馆智慧阅读推广服务模式的具体实现途径。

智慧图书馆多模态阅读情感研究

文章基于阅读全生命周期情感阶段,立足基本情感、专有情感和高级情感3个层级,通过动因情感、实时情感和延伸情感3个扇区,构建智慧图书馆多模态阅读情感群喷泉模型,并从表情、语音、生理、肢体、文本和行为6个模态构建多模态阅读情感表征体系。基于此,设计智慧图书馆多模态阅读情感感知模型并阐释其运行机理,就动态阅读情感提出情感匹配、交流汇聚、双向反馈等阅读情感导引建议。

ChatGPT技术及其在智慧图书馆中的应用策略

文章梳理ChatGPT运行的技术保障体系,提出ChatGPT在智慧图书馆的应用技术架构,从文本生成、参考咨询、自动文摘、智能检索、辅助编程、多模态融合6个方面探讨ChatGPT在智慧图书馆的应用,指出其应用中面临的数据安全、社会伦理、知识产权等诸多挑战,进而提出智慧图书馆ChatGPT应用策略,即保护数据安全与个人隐私、强化社会伦理和道德规范、出台知识产权与法律监管措施。

一种新型的彩色图像多目标颜色的配准与抖动算法

为实现图像颜色的快速配准,使得配准后的颜色误差分配更均匀,通过实验分析了各颜色空间对彩色图像配准速度及抖动效果的影响,选定RGB为颜色空间;提出建立目标色等距表库算法,快速进行源色与目标色映射。基于Floyd-Steinberg算法思想,提出一种以距离倒数作为基准的算法,针对奇数和偶数行,将R、G、B误差分配到不同四点。基于两种算法的使用,大幅度减少了距离比较次数与浮点数运算次数,颜色配准速度提高了约15倍,同时使误差分配更加均匀,减少了色彩丢失,提高了图像质量。通过将提出的算法应用于256色触摸屏图像显示中,证明画面显示流畅,响应速度提高了一个数量级以上。

面向综合评估的船舶工装设计方法

针对船舶建造工装设计标准化程度低、设计不规范以及设计管理落后等问题,提出一种面向综合评估的工装设计方法。从工装库构建、智能设计、仿真评估与优化等角度开展工装数字化设计研究。基于工装模型库实现设计模型的有效管理和调用,并通过集成寻优算法实现工装最优布局,在此基础上基于有限元仿真和工艺仿真技术,结合具体指标,实现工装结构力学性能和工艺仿真评估,同时利用结构优化技术对设计结果进行优化,在满足使用需求的基础上降低了加工成本。基于达索三维体验平台开发数字化工装设计系统,固化设计流程,并通过分段吊马设计的实际应用,实现设计效率提升200%,同时重量减轻12.8%。

智慧图书馆轻量级资源推荐服务模式研究

智慧图书馆轻量级资源推荐服务具有灵活性、可扩展性、易维护性、高可用性等优势。文章明确了轻量级资源推荐服务要素,提出构建具有开放共享、泛在化、专业化、个性化特征的资源推荐服务模式,并提出了相应的建设策略,以便为轻量级服务在智慧图书馆的应用提供有益的指导和建议。

AIGC驱动下图书馆智慧服务生态模式构建与实现路径研究

AIGC的出现和发展深度影响人机交互的情感体验,催生图书馆智慧服务的新方向,打造全新的图书馆服务业态。文章结合图书馆智慧服务特征提出AIGC驱动下图书馆智慧服务的价值机遇,并以信息生态理论为基础,从信息人、信息技术、信息实践、信息价值和信息环境五个关键要素出发,构建AIGC驱动下的图书馆智慧服务生态模式,同时提出AIGC驱动下图书馆智慧服务生态模式的实现路径。

区域图书馆联盟视域下的地方文献工作模式探索与创新——以陕西地方文献资源建设体系“三秦模式”为例

区域图书馆联盟对省域图书馆地方文献工作具有重要的意义。依托陕西公共图书馆服务联盟十多年的实践探索,陕西省图书馆创新性地提出陕西地方文献资源建设体系“三秦模式”,并从中探索省域联盟引领下地方文献创新工作的有效策略,包括:建立联盟工作制度、组织地方文献联合征集、指导地方特色资源项目建设、培训辅导业务人员、运用新媒体促进信息交流等。此模式具有可操作性,可供图书馆地方文献工作区域性创新发展参考借鉴。

基于Kano模型的高校图书馆服务能力提升研究

[目的/意义]旨在通过研究用户对高校图书馆服务内容的需求强度与优先次序,提出高校图书馆服务能力建设的优化策略。[方法/过程]结合高校图书馆服务能力现有相关文献调研与用户访谈等方式提炼出13项需求项目,运用Kano模型对需求指标进行定性分类和服务优化优先序分析。[结果/结论]根据Better-Worse系数分析的结果提出高校图书馆各类型需求下服务项目的服务策略及其相应能力建设路径,为高校图书馆服务能力建设优化提供方向。

我国公共图书馆服务区域均等化测度及空间效应研究

公共图书馆服务区域均等化是保障公民基本文化权利、推行文化善治、构建社会主义和谐社会的确切要求。在我国公共图书馆服务区域均等化测度及空间特征分析的基础上,对其空间交互作用及空间效应进行研究。研究表明:我国公共图书馆服务区域均等化呈显著空间相关性,存在显著空间溢出效应。影响因素中直接贡献强度为:人口集聚度>市场发育程度>文化产业发展>区域补偿政策>居民生活质量,对其他地区溢出效应影响为:文化重视度>居民生活质量>区域补偿政策>文化产业发展>教育投入>人口集聚度。文章结合我国公共图书馆服务区域均等化测度及空间格局演变态势分析,溢出效应推动我国公共图书馆服务向高质量的均等化方向演进。