Based on our research and data analysis, we have made an in-depth study of the elements that have had an impact on the archiving of those office records from the automated office management system. In addition, we als...Based on our research and data analysis, we have made an in-depth study of the elements that have had an impact on the archiving of those office records from the automated office management system. In addition, we also offered a few suggestions about archiving such electronic office records more efficiently and effectively from a holistic perspective. In this paper, these authors discussed at some length about the following issues which included but limited to the unique features and requirements about the offline record transmission, the online record archiving, the requirements of electronic archiving stemming from the automated office document generating system, how to make the electronic business management system more congenial to its task-specific requirements for business records management and how to protect the system users' interest during the process of the system's continuous evolutionary development.展开更多
The control system of Hefei Light Source II(HLS-Ⅱ) is a distributed system based on the experimental physics and industrial control system(EPICS). It is necessary to maintain the central configuration files for the e...The control system of Hefei Light Source II(HLS-Ⅱ) is a distributed system based on the experimental physics and industrial control system(EPICS). It is necessary to maintain the central configuration files for the existing archiving system. When the process variables in the control system are added, removed, or updated, the configuration files must be manually modified to maintain consistency with the control system. This paper presents a new method for data archiving, which realizes the automatic configuration of the archiving parameters. The system uses microservice architecture to integrate the EPICS Archiver Appliance and Rec Sync. In this way, the system can collect all the archived meta-configuration from the distributed input/output controllers and enter them into the EPICS Archiver Appliance automatically. Furthermore, we also developed a web-based GUI to provide automatic visualization of real-time and historical data. At present,this system is under commissioning at HLS-Ⅱ. The results indicate that the new archiving system is reliable and convenient to operate. The operation mode without maintenance is valuable for large-scale scientific facilities.展开更多
A fuzzy particle swarm optimization （PSO） on the basis of elite archiving is proposed for solving multi-objective optimization problems. First, a new perturbation operator is designed, and the concepts of fuzzy glob...A fuzzy particle swarm optimization （PSO） on the basis of elite archiving is proposed for solving multi-objective optimization problems. First, a new perturbation operator is designed, and the concepts of fuzzy global best and fuzzy personal best are given on basis of the new operator. After that, particle updating equations are revised on the basis of the two new concepts to discourage the premature convergence and enlarge the potential search space; second, the elite archiving technique is used during the process of evolution, namely, the elite particles are introduced into the swarm, whereas the inferior particles are deleted. Therefore, the quality of the swarm is ensured. Finally, the convergence of this swarm is proved. The experimental results show that the nondominated solutions found by the proposed algorithm are uniformly distributed and widely spread along the Pareto front.展开更多
Scientific data refers to the data or data sets generated from scientific research process through observations, experiments, calculations and analyses. These data are fundamental components for developing new knowled...Scientific data refers to the data or data sets generated from scientific research process through observations, experiments, calculations and analyses. These data are fundamental components for developing new knowledge, advancing technological progress, and creating wealth. In recent years, scientific data has been attracting more and more attention for its preserving, archiving and sharing.展开更多
In contemporary times, many Nigerians, and indeed Africans, go through huddles to behold some of their most cherished artifacts in foreign lands. Such artifacts were taken away by the colonial masters during their var...In contemporary times, many Nigerians, and indeed Africans, go through huddles to behold some of their most cherished artifacts in foreign lands. Such artifacts were taken away by the colonial masters during their various conquests of ancient African kingdoms. In the modern days as well, such trips are made to other countries by Nigerians and Africans to research into some popular arts and amusements lost as a result of neglect. One of such lost is the popular form of literature that once existed in the eastern part of Nigeria--the Onitsha Market Literature. Using evidences from secondary research materials, this paper discusses the re-occurrence of this silly history of neglecting the production and consumption of popular culture in Nigerian and indeed Africa. Using the Nigerian video film industry, Nollywood, as a case study, a case is here made for the proper archiving of these video films for future generations. It is observed that just few decades of video film production in Nigeria, virtually all the pioneer films cannot be found anywhere in the country. Such films must be needed in future for research purposes as the foundations upon which other great films of the future will base. The work therefore concludes with the obvious recommendation that genuine efforts, will, and finances be committed to proper archiving of legally approved Nollywood films. This will engender the sentiment central to film archiving and drastically reduce the problems that may confront the future generation as regards research in the Nigeria video film culture, Nollywood.展开更多
Lithuanian Central State Archive is the biggest one within the state archival service and the only state archive where audiovisual documents are stored. There are more than 800,000 units of audiovisual documents in th...Lithuanian Central State Archive is the biggest one within the state archival service and the only state archive where audiovisual documents are stored. There are more than 800,000 units of audiovisual documents in the archive. The main laws regulating the activity of Lithuanian Central State Archive and related to audiovisual archiving are the Law on Documents and Archives of Lithuanian Republic, the Law of Cinema of Lithuanian Republic, and the Law on Copyright and Related Rights of Lithuanian Republic. There are four big collections of audiovisual documents in the Lithuanian Central State Archive--films, photo documents, sound recordings, and video recordings. The Archive＇s specialists have a large experience in the field of physical treatment and preservation of analogue audiovisual documents. Lithuanian Central State Archive digitizes audiovisual documents seeking the balance between long time preservation and nowadays access. Since May, 2010 till April 2013, Lithuanian Central State Archive implemented the project--Lithuanian documentaries on the Internet. During the project the Archives digitized and transferred to the Internet 1,000 titles of Lithuanian documentaries, created in the period 1919-1961. Lithuanian Central State Archive wants to popularize its collections, so various international projects are participated in.展开更多
Objective: to explore the role of medical archiving and communication system in the training of target delineation ability of oncology graduate students and regular training students. Methods: this subject will take t...Objective: to explore the role of medical archiving and communication system in the training of target delineation ability of oncology graduate students and regular training students. Methods: this subject will take the newly admitted graduate students and planning students as the research objects, and senior doctors will use the medical archive and communication system to carry out training on sectional anatomy and target area delineation in the form of department lectures. The application of medical archiving and communication system in improving the ability of target area delineation was explored by self before and after comparison, and the ability of target area delineation was tested before training, after training and three months after graduation. To evaluate the theoretical knowledge and practical operation level of target area delineation in order to explore the superiority and feasibility of medical archiving and communication system in improving the target area delineation ability of oncology graduate students and planning students. Results: there was a statistical difference between the accuracy of target area delineation after relevant knowledge training and three months after graduation by using the medical archive and communication system and before training (P < 0.05). Conclusion: using the medical archive and communication system to train oncology graduate students and training students in relevant knowledge can significantly improve their ability to outline the target area, better adapt to the development of oncology, and lay a solid foundation for becoming a qualified oncologist in the future.展开更多
This paper investigates the security features of the distributed archive scheme named Uniformly Random Distributed Archive (URDA). It is a simple, fast and practically secure algorithm that meets the needs of confiden...This paper investigates the security features of the distributed archive scheme named Uniformly Random Distributed Archive (URDA). It is a simple, fast and practically secure algorithm that meets the needs of confidentiality and availability requirements of data. URDA cuts a file archived into fragments, and distributes each fragment into randomly selected n -k + 1 storages out of n storages. As the result, users only need to access at least k storages to recover original file, whereas stolen data from k -1 storages cannot cover original file. Thus, archived files are nothing but sequences of a large number of fixed length fragments. URDA is proved of disappearing both characters and biased bits of original data in archived files, indicating the probabilities of both a fragment and a bit appearing at particular position are uniformly constant respectively. Yet, through running experiments, we found out the risk of likelihood that URDA might be vulnerable to bit pattern attack due to the different ratios of characters appearing in real world files. However, we solved the problem by modifying URDA with variable fragment lengths, which results in that all the bits in revealed sequences are distributed uniformly and independently at random.展开更多
Objective To determine a network solution to meet the network requirements of the heavy data flow, load balance, and potential network storms from expansion of picture archiving and communication system (PACS) appli...Objective To determine a network solution to meet the network requirements of the heavy data flow, load balance, and potential network storms from expansion of picture archiving and communication system (PACS) application.Methods Intel Netstructure 480T Giga Switch was used as the main switch and connected to each building by fiber channel at 1 Giga speed to archive 100 MB/s to each port. At the same time, the in-dependence of the original network construction was physically kept. The layer 3 and 4 switchers were used as load balance to reduce the heavy load of the network, and all the cabling for PACS used the super CAT5 along with the Intel NetStructure 1520 to prepare for potential network storms.Results An advanced intranet was set up to fully meet the high standard requirement of the PACS. The foundation for upgrading the whole network system to 1 Giga application was built to achieve sharing and transmission of images, information, and patient data within the hospital. The base was established for the standardized management of the hospital.Conclusion Good planning is the first step in setting up PACS, and the equipment forms the necessary platform to run PACS and all kinds of hospital information system (HIS). The networking construction is the foundation of e-hospital.展开更多
Both computer science and archival science are concerned with archiving large-scale data,but they have different focuses.Large-scale data archiving in computer science focuses on technical aspects that can reduce the ...Both computer science and archival science are concerned with archiving large-scale data,but they have different focuses.Large-scale data archiving in computer science focuses on technical aspects that can reduce the cost of data storage and improve the reliability and efficiency of Big Data management.Its weaknesses lie in inadequate and non-standardized management.Archiving in archival science focuses on the management aspects and neglects the necessary technical considerations,resulting in high storage and retention costs and poor ability to manage Big Data.Therefore,the integration of large-scale data archiving and archival theory can balance the existing research limitations of the two fields and propose two research topics for related research-archival management of Big Data and large-scale management of archived Big Data.展开更多
The archiving of Internet traffic is an essential function for retrospective network event analysis and forensic computer communication. The state-of-the-art approach for network monitoring and analysis involves stora...The archiving of Internet traffic is an essential function for retrospective network event analysis and forensic computer communication. The state-of-the-art approach for network monitoring and analysis involves storage and analysis of network flow statistic. However, this approach loses much valuable information within the Internet traffic. With the advancement of commodity hardware, in particular the volume of storage devices and the speed of interconnect technologies used in network adapter cards and multi-core processors, it is now possible to capture 10 Gbps and beyond real-time network traffic using a commodity computer, such as n2disk. Also with the advancement of distributed file system （such as Hadoop, ZFS, etc.） and open cloud computing platform （such as OpenStack, CloudStack, and Eucalyptus, etc.）, it is practical to store such large volume of traffic data and fully in-depth analyse the inside communication within an acceptable latency. In this paper, based on well- known TimeMachine, we present TIFAflow, the design and implementation of a novel system for archiving and querying network flows. Firstly, we enhance the traffic archiving system named TImemachine＋FAstbit （TIFA） with flow granularity, i.e., supply the system with flow table and flow module. Secondly, based on real network traces, we conduct performance comparison experiments of TIFAflow with other implementations such as common database solution, TimeMachine and TIFA system. Finally, based on comparison results, we demonstrate that TIFAflow has a higher performance improvement in storing and querying performance than TimeMachine and TIFA, both in time and space metrics.展开更多
To address the current situation where many small enterprises lack efficient management of customer data, this paper proposes a design and implementation plan of a customer relationship management (CRM) system based o...To address the current situation where many small enterprises lack efficient management of customer data, this paper proposes a design and implementation plan of a customer relationship management (CRM) system based on email service. It aims to solve the problems of data dispersion, untimely update and information redundancy in customer management of small and medium-sized enterprises. The system includes four core functional modules: historical email analysis, lead pool management, customer management and email archiving. Through email mining and web crawler technology, the system can extract potential customer information from historical emails and enrich lead data;the lead pool management module supports lead information maintenance, status tracking and conversion of high-value leads;the customer management module realizes the maintenance and dynamic tracking of customer information;the email management module provides the archiving of emails and attachments and the structured storage of basic email information. The system provides automated and intelligent customer information management, improves the work efficiency of sales staff, and provides an efficient customer relationship management solution for enterprises.展开更多
Estimate of the Deterministic Neutron RBE for Radiation-induced Pseudo-Pelger Huët Cell Formation R.E.Goans1,2,C.J.Iddins1,R.E.Goans,Jr.3(1.Radiation Emergency Assistance Center/Training Site,Oak Ridge,TN;2.MJW C...Estimate of the Deterministic Neutron RBE for Radiation-induced Pseudo-Pelger Huët Cell Formation R.E.Goans1,2,C.J.Iddins1,R.E.Goans,Jr.3(1.Radiation Emergency Assistance Center/Training Site,Oak Ridge,TN;2.MJW Corporation,Amherst,NY;3.LMU Debusk School of Medicine,Harrogate,TN)Abstract:Using archival peripheral blood slides from radiation accident patients,we have recently described the pseudo-Pelger Huët anomaly(PPHA)in neutrophils as a new radiation-induced biomarker,useful for dosimetry not only immediately after a radiation incident but also potentially helpful as a tool in retrospective dosimetry.展开更多
The Sanggamryong Campaign Chief Planners:Chen Yuren,Hu Hong,and Zhang Yuan Length:Three Episodes Producers:SMG Documentary Center,BesTV,and bilibili Broadcasting Platform:bilibili The film series focuses on the famous...The Sanggamryong Campaign Chief Planners:Chen Yuren,Hu Hong,and Zhang Yuan Length:Three Episodes Producers:SMG Documentary Center,BesTV,and bilibili Broadcasting Platform:bilibili The film series focuses on the famous battle of Sanggamryong in 1952 during the War to Resist U.S.Aggression and Aid Korea,presenting the three stages of the campaign in three aspects of military strategies,weapons,and heroes.It showcases many textual and visual archives from the Republic of Korea.展开更多
This meta-analysis examines 45 peer-reviewed studies(1950-2023)analysing 320 piano score editions from the Royal Conservatory of Music(RCM)Archive,employing robust statistical methods to quantify pedagogical evolution...This meta-analysis examines 45 peer-reviewed studies(1950-2023)analysing 320 piano score editions from the Royal Conservatory of Music(RCM)Archive,employing robust statistical methods to quantify pedagogical evolution.The data reveal a 42%increase in fingering density within post-2000 editions(Hedges’g=0.41,p<0.001,CI[0.28,0.54]),with Romantic works showing the highest variability(g=0.59 vs.Baroque g=0.12).Strong correlations emerged between editorial changes and pedagogical trends(r=0.67,p=0.002),particularly adopting ergonomic techniques post-1980.Performance data indicate modern editions improve advanced student outcomes by 12%(OR=1.12[1.05,1.19])but may overwhelm beginners(error rate+18%).The study establishes empirical evidence for three pedagogical epochs:technical rigor(pre-1980),transitional(1980-2000),and expressive flexibility(post-2000).These findings withstand publication bias tests(Egger’s t=1.2,p=0.24)and significantly affect curriculum design and historical performance practice.展开更多
Cyclic-system-based optimization(CSBO)is an innovative metaheuristic algorithm(MHA)that draws inspiration from the workings of the human blood circulatory system.However,CSBO still faces challenges in solving complex ...Cyclic-system-based optimization(CSBO)is an innovative metaheuristic algorithm(MHA)that draws inspiration from the workings of the human blood circulatory system.However,CSBO still faces challenges in solving complex optimization problems,including limited convergence speed and a propensity to get trapped in local optima.To improve the performance of CSBO further,this paper proposes improved cyclic-system-based optimization(ICSBO).First,in venous blood circulation,an adaptive parameter that changes with evolution is introduced to improve the balance between convergence and diversity in this stage and enhance the exploration of search space.Second,the simplex method strategy is incorporated into the systemic and pulmonary circulations,which improves the update formulas.A learning strategy aimed at the optimal individual,combined with a straightforward opposition-based learning approach,is employed to enhance population convergence while preserving diversity.Finally,a novel external archive utilizing a diversity supplementation mechanism is introduced to enhance population diversity,maximize the use of superior genes,and lower the risk of the population being trapped in local optima.Testing on the CEC2017 benchmark set shows that compared with the original CSBO and eight other outstanding MHAs,ICSBO demonstrates remarkable advantages in convergence speed,convergence precision,and stability.展开更多
卫星海面高度异常产品再处理的研究多集中在欧洲和美国近海,中国近海尚未有过。在产生AVISO(Archiving Validation and Interpolation of Satellite Oceanographic Data)全球0.25°多颗卫星海面高度异常产品时,只用了1/3~1/2的部分...卫星海面高度异常产品再处理的研究多集中在欧洲和美国近海,中国近海尚未有过。在产生AVISO(Archiving Validation and Interpolation of Satellite Oceanographic Data)全球0.25°多颗卫星海面高度异常产品时,只用了1/3~1/2的部分沿轨资料,给区域海洋动力学研究造成了一定的限制。本研究尝试利用多颗卫星的所有沿轨资料及25个测潮站的观测资料,通过最优插值方法产生一份新的中国近海海面高度异常资料。新资料的空间分辨率仍为0.25°,但使用了来自3颗卫星(Jason-1、Jason-2、Cryo Sat-2)的所有沿轨资料及25个测潮站的观测资料。新资料的范围为10°S^50°N、90°~160°E。新资料与AVISO资料的对比分析表明新资料更接近沿轨海面高度异常观测,同时也更接近测潮站资料。与AVISO资料相比,新资料与沿轨海面高度异常观测的均方根误差降低了10.03%,与测潮站资料的均方根误差降低了9.6%。展开更多
基金supported by the National Natural Science Foundation of China(Grant No.70773088)
文摘Based on our research and data analysis, we have made an in-depth study of the elements that have had an impact on the archiving of those office records from the automated office management system. In addition, we also offered a few suggestions about archiving such electronic office records more efficiently and effectively from a holistic perspective. In this paper, these authors discussed at some length about the following issues which included but limited to the unique features and requirements about the offline record transmission, the online record archiving, the requirements of electronic archiving stemming from the automated office document generating system, how to make the electronic business management system more congenial to its task-specific requirements for business records management and how to protect the system users' interest during the process of the system's continuous evolutionary development.
基金supported by the National Natural Science Foundation of China(No.11375186)
文摘The control system of Hefei Light Source II(HLS-Ⅱ) is a distributed system based on the experimental physics and industrial control system(EPICS). It is necessary to maintain the central configuration files for the existing archiving system. When the process variables in the control system are added, removed, or updated, the configuration files must be manually modified to maintain consistency with the control system. This paper presents a new method for data archiving, which realizes the automatic configuration of the archiving parameters. The system uses microservice architecture to integrate the EPICS Archiver Appliance and Rec Sync. In this way, the system can collect all the archived meta-configuration from the distributed input/output controllers and enter them into the EPICS Archiver Appliance automatically. Furthermore, we also developed a web-based GUI to provide automatic visualization of real-time and historical data. At present,this system is under commissioning at HLS-Ⅱ. The results indicate that the new archiving system is reliable and convenient to operate. The operation mode without maintenance is valuable for large-scale scientific facilities.
基金the National Natural Science Foundations of China (60873099 )
文摘A fuzzy particle swarm optimization （PSO） on the basis of elite archiving is proposed for solving multi-objective optimization problems. First, a new perturbation operator is designed, and the concepts of fuzzy global best and fuzzy personal best are given on basis of the new operator. After that, particle updating equations are revised on the basis of the two new concepts to discourage the premature convergence and enlarge the potential search space; second, the elite archiving technique is used during the process of evolution, namely, the elite particles are introduced into the swarm, whereas the inferior particles are deleted. Therefore, the quality of the swarm is ensured. Finally, the convergence of this swarm is proved. The experimental results show that the nondominated solutions found by the proposed algorithm are uniformly distributed and widely spread along the Pareto front.
基金Ministry of Science and Technology "National Science and Technology Platform Program"(2005DKA31800)
文摘Scientific data refers to the data or data sets generated from scientific research process through observations, experiments, calculations and analyses. These data are fundamental components for developing new knowledge, advancing technological progress, and creating wealth. In recent years, scientific data has been attracting more and more attention for its preserving, archiving and sharing.
文摘In contemporary times, many Nigerians, and indeed Africans, go through huddles to behold some of their most cherished artifacts in foreign lands. Such artifacts were taken away by the colonial masters during their various conquests of ancient African kingdoms. In the modern days as well, such trips are made to other countries by Nigerians and Africans to research into some popular arts and amusements lost as a result of neglect. One of such lost is the popular form of literature that once existed in the eastern part of Nigeria--the Onitsha Market Literature. Using evidences from secondary research materials, this paper discusses the re-occurrence of this silly history of neglecting the production and consumption of popular culture in Nigerian and indeed Africa. Using the Nigerian video film industry, Nollywood, as a case study, a case is here made for the proper archiving of these video films for future generations. It is observed that just few decades of video film production in Nigeria, virtually all the pioneer films cannot be found anywhere in the country. Such films must be needed in future for research purposes as the foundations upon which other great films of the future will base. The work therefore concludes with the obvious recommendation that genuine efforts, will, and finances be committed to proper archiving of legally approved Nollywood films. This will engender the sentiment central to film archiving and drastically reduce the problems that may confront the future generation as regards research in the Nigeria video film culture, Nollywood.
文摘Lithuanian Central State Archive is the biggest one within the state archival service and the only state archive where audiovisual documents are stored. There are more than 800,000 units of audiovisual documents in the archive. The main laws regulating the activity of Lithuanian Central State Archive and related to audiovisual archiving are the Law on Documents and Archives of Lithuanian Republic, the Law of Cinema of Lithuanian Republic, and the Law on Copyright and Related Rights of Lithuanian Republic. There are four big collections of audiovisual documents in the Lithuanian Central State Archive--films, photo documents, sound recordings, and video recordings. The Archive＇s specialists have a large experience in the field of physical treatment and preservation of analogue audiovisual documents. Lithuanian Central State Archive digitizes audiovisual documents seeking the balance between long time preservation and nowadays access. Since May, 2010 till April 2013, Lithuanian Central State Archive implemented the project--Lithuanian documentaries on the Internet. During the project the Archives digitized and transferred to the Internet 1,000 titles of Lithuanian documentaries, created in the period 1919-1961. Lithuanian Central State Archive wants to popularize its collections, so various international projects are participated in.
文摘Objective: to explore the role of medical archiving and communication system in the training of target delineation ability of oncology graduate students and regular training students. Methods: this subject will take the newly admitted graduate students and planning students as the research objects, and senior doctors will use the medical archive and communication system to carry out training on sectional anatomy and target area delineation in the form of department lectures. The application of medical archiving and communication system in improving the ability of target area delineation was explored by self before and after comparison, and the ability of target area delineation was tested before training, after training and three months after graduation. To evaluate the theoretical knowledge and practical operation level of target area delineation in order to explore the superiority and feasibility of medical archiving and communication system in improving the target area delineation ability of oncology graduate students and planning students. Results: there was a statistical difference between the accuracy of target area delineation after relevant knowledge training and three months after graduation by using the medical archive and communication system and before training (P < 0.05). Conclusion: using the medical archive and communication system to train oncology graduate students and training students in relevant knowledge can significantly improve their ability to outline the target area, better adapt to the development of oncology, and lay a solid foundation for becoming a qualified oncologist in the future.
文摘This paper investigates the security features of the distributed archive scheme named Uniformly Random Distributed Archive (URDA). It is a simple, fast and practically secure algorithm that meets the needs of confidentiality and availability requirements of data. URDA cuts a file archived into fragments, and distributes each fragment into randomly selected n -k + 1 storages out of n storages. As the result, users only need to access at least k storages to recover original file, whereas stolen data from k -1 storages cannot cover original file. Thus, archived files are nothing but sequences of a large number of fixed length fragments. URDA is proved of disappearing both characters and biased bits of original data in archived files, indicating the probabilities of both a fragment and a bit appearing at particular position are uniformly constant respectively. Yet, through running experiments, we found out the risk of likelihood that URDA might be vulnerable to bit pattern attack due to the different ratios of characters appearing in real world files. However, we solved the problem by modifying URDA with variable fragment lengths, which results in that all the bits in revealed sequences are distributed uniformly and independently at random.
文摘Objective To determine a network solution to meet the network requirements of the heavy data flow, load balance, and potential network storms from expansion of picture archiving and communication system (PACS) application.Methods Intel Netstructure 480T Giga Switch was used as the main switch and connected to each building by fiber channel at 1 Giga speed to archive 100 MB/s to each port. At the same time, the in-dependence of the original network construction was physically kept. The layer 3 and 4 switchers were used as load balance to reduce the heavy load of the network, and all the cabling for PACS used the super CAT5 along with the Intel NetStructure 1520 to prepare for potential network storms.Results An advanced intranet was set up to fully meet the high standard requirement of the PACS. The foundation for upgrading the whole network system to 1 Giga application was built to achieve sharing and transmission of images, information, and patient data within the hospital. The base was established for the standardized management of the hospital.Conclusion Good planning is the first step in setting up PACS, and the equipment forms the necessary platform to run PACS and all kinds of hospital information system (HIS). The networking construction is the foundation of e-hospital.
基金supported by the National Natural Science Foundation of China(grant number 72074214).
文摘Both computer science and archival science are concerned with archiving large-scale data,but they have different focuses.Large-scale data archiving in computer science focuses on technical aspects that can reduce the cost of data storage and improve the reliability and efficiency of Big Data management.Its weaknesses lie in inadequate and non-standardized management.Archiving in archival science focuses on the management aspects and neglects the necessary technical considerations,resulting in high storage and retention costs and poor ability to manage Big Data.Therefore,the integration of large-scale data archiving and archival theory can balance the existing research limitations of the two fields and propose two research topics for related research-archival management of Big Data and large-scale management of archived Big Data.
基金the National Key Basic Research and Development (973) Program of China (Nos. 2012CB315801 and 2011CB302805)the National Natural Science Foundation of China A3 Program (No. 61161140320) and the National Natural Science Foundation of China (No. 61233016)Intel Research Councils UPO program with title of security Vulnerability Analysis based on Cloud Platform with Intel IA Architecture
文摘The archiving of Internet traffic is an essential function for retrospective network event analysis and forensic computer communication. The state-of-the-art approach for network monitoring and analysis involves storage and analysis of network flow statistic. However, this approach loses much valuable information within the Internet traffic. With the advancement of commodity hardware, in particular the volume of storage devices and the speed of interconnect technologies used in network adapter cards and multi-core processors, it is now possible to capture 10 Gbps and beyond real-time network traffic using a commodity computer, such as n2disk. Also with the advancement of distributed file system （such as Hadoop, ZFS, etc.） and open cloud computing platform （such as OpenStack, CloudStack, and Eucalyptus, etc.）, it is practical to store such large volume of traffic data and fully in-depth analyse the inside communication within an acceptable latency. In this paper, based on well- known TimeMachine, we present TIFAflow, the design and implementation of a novel system for archiving and querying network flows. Firstly, we enhance the traffic archiving system named TImemachine＋FAstbit （TIFA） with flow granularity, i.e., supply the system with flow table and flow module. Secondly, based on real network traces, we conduct performance comparison experiments of TIFAflow with other implementations such as common database solution, TimeMachine and TIFA system. Finally, based on comparison results, we demonstrate that TIFAflow has a higher performance improvement in storing and querying performance than TimeMachine and TIFA, both in time and space metrics.
文摘To address the current situation where many small enterprises lack efficient management of customer data, this paper proposes a design and implementation plan of a customer relationship management (CRM) system based on email service. It aims to solve the problems of data dispersion, untimely update and information redundancy in customer management of small and medium-sized enterprises. The system includes four core functional modules: historical email analysis, lead pool management, customer management and email archiving. Through email mining and web crawler technology, the system can extract potential customer information from historical emails and enrich lead data;the lead pool management module supports lead information maintenance, status tracking and conversion of high-value leads;the customer management module realizes the maintenance and dynamic tracking of customer information;the email management module provides the archiving of emails and attachments and the structured storage of basic email information. The system provides automated and intelligent customer information management, improves the work efficiency of sales staff, and provides an efficient customer relationship management solution for enterprises.
文摘Estimate of the Deterministic Neutron RBE for Radiation-induced Pseudo-Pelger Huët Cell Formation R.E.Goans1,2,C.J.Iddins1,R.E.Goans,Jr.3(1.Radiation Emergency Assistance Center/Training Site,Oak Ridge,TN;2.MJW Corporation,Amherst,NY;3.LMU Debusk School of Medicine,Harrogate,TN)Abstract:Using archival peripheral blood slides from radiation accident patients,we have recently described the pseudo-Pelger Huët anomaly(PPHA)in neutrophils as a new radiation-induced biomarker,useful for dosimetry not only immediately after a radiation incident but also potentially helpful as a tool in retrospective dosimetry.
文摘The Sanggamryong Campaign Chief Planners:Chen Yuren,Hu Hong,and Zhang Yuan Length:Three Episodes Producers:SMG Documentary Center,BesTV,and bilibili Broadcasting Platform:bilibili The film series focuses on the famous battle of Sanggamryong in 1952 during the War to Resist U.S.Aggression and Aid Korea,presenting the three stages of the campaign in three aspects of military strategies,weapons,and heroes.It showcases many textual and visual archives from the Republic of Korea.
文摘This meta-analysis examines 45 peer-reviewed studies(1950-2023)analysing 320 piano score editions from the Royal Conservatory of Music(RCM)Archive,employing robust statistical methods to quantify pedagogical evolution.The data reveal a 42%increase in fingering density within post-2000 editions(Hedges’g=0.41,p<0.001,CI[0.28,0.54]),with Romantic works showing the highest variability(g=0.59 vs.Baroque g=0.12).Strong correlations emerged between editorial changes and pedagogical trends(r=0.67,p=0.002),particularly adopting ergonomic techniques post-1980.Performance data indicate modern editions improve advanced student outcomes by 12%(OR=1.12[1.05,1.19])but may overwhelm beginners(error rate+18%).The study establishes empirical evidence for three pedagogical epochs:technical rigor(pre-1980),transitional(1980-2000),and expressive flexibility(post-2000).These findings withstand publication bias tests(Egger’s t=1.2,p=0.24)and significantly affect curriculum design and historical performance practice.
基金supported by the Project of Scientific and Technological Innovation Development of Jilin in China under Grant 20210103090.
文摘Cyclic-system-based optimization(CSBO)is an innovative metaheuristic algorithm(MHA)that draws inspiration from the workings of the human blood circulatory system.However,CSBO still faces challenges in solving complex optimization problems,including limited convergence speed and a propensity to get trapped in local optima.To improve the performance of CSBO further,this paper proposes improved cyclic-system-based optimization(ICSBO).First,in venous blood circulation,an adaptive parameter that changes with evolution is introduced to improve the balance between convergence and diversity in this stage and enhance the exploration of search space.Second,the simplex method strategy is incorporated into the systemic and pulmonary circulations,which improves the update formulas.A learning strategy aimed at the optimal individual,combined with a straightforward opposition-based learning approach,is employed to enhance population convergence while preserving diversity.Finally,a novel external archive utilizing a diversity supplementation mechanism is introduced to enhance population diversity,maximize the use of superior genes,and lower the risk of the population being trapped in local optima.Testing on the CEC2017 benchmark set shows that compared with the original CSBO and eight other outstanding MHAs,ICSBO demonstrates remarkable advantages in convergence speed,convergence precision,and stability.
文摘卫星海面高度异常产品再处理的研究多集中在欧洲和美国近海,中国近海尚未有过。在产生AVISO(Archiving Validation and Interpolation of Satellite Oceanographic Data)全球0.25°多颗卫星海面高度异常产品时,只用了1/3~1/2的部分沿轨资料,给区域海洋动力学研究造成了一定的限制。本研究尝试利用多颗卫星的所有沿轨资料及25个测潮站的观测资料,通过最优插值方法产生一份新的中国近海海面高度异常资料。新资料的空间分辨率仍为0.25°,但使用了来自3颗卫星(Jason-1、Jason-2、Cryo Sat-2)的所有沿轨资料及25个测潮站的观测资料。新资料的范围为10°S^50°N、90°~160°E。新资料与AVISO资料的对比分析表明新资料更接近沿轨海面高度异常观测,同时也更接近测潮站资料。与AVISO资料相比,新资料与沿轨海面高度异常观测的均方根误差降低了10.03%,与测潮站资料的均方根误差降低了9.6%。
