XML data can be represented by a tree or graph and the query processing for XML data requires the structural information among nodes. Designing an efficient labeling scheme for the nodes of Order-Sensitive XML trees i...XML data can be represented by a tree or graph and the query processing for XML data requires the structural information among nodes. Designing an efficient labeling scheme for the nodes of Order-Sensitive XML trees is one of the important methods to obtain the excellent management of XML data. Previous labeling schemes such as region and prefix often sacrifice updating performance and suffer increasing labeling space when inserting new nodes. To overcome these limitations, in this paper we propose a new labeling idea of separating structure from order. According to the proposed idea, a novel Prime-based Middle Fraction Labeling Scheme(PMFLS) is designed accordingly, in which a series of algorithms are proposed to obtain the structural relationships among nodes and to support updates. PMFLS combines the advantages of both prefix and region schemes in which the structural information and sequential information are separately expressed. PMFLS also supports Order-Sensitive updates without relabeling or recalculation, and its labeling space is stable. Experiments and analysis on several benchmarks are conducted and the results show that PMFLS is efficient in handling updates and also significantly improves the performance of the query processing with good scalability.展开更多
介绍了信息化发展对制造业带来的影响和要求,提出了信息管理服务于制造过程的重要性;结合企业产品订单化生产管理系统的开发实例,比较分析了C/S和B/S两种架构,介绍了基于C/S架构的生产管理系统的开发设计思路与方法;介绍该架构管理系统...介绍了信息化发展对制造业带来的影响和要求,提出了信息管理服务于制造过程的重要性;结合企业产品订单化生产管理系统的开发实例,比较分析了C/S和B/S两种架构,介绍了基于C/S架构的生产管理系统的开发设计思路与方法;介绍该架构管理系统给传统生产管理带来的优势;比较和分析了VC++、SQL Server 2000等系统开发技术;在此基础上研究了系统的主要功能、体系结构以及实现方法。展开更多
Textual informativity is one of the seven standards of textuality. This paper focuses on the shift among three orders of textual informativity. And also probe into some strategies to compensate for the different level...Textual informativity is one of the seven standards of textuality. This paper focuses on the shift among three orders of textual informativity. And also probe into some strategies to compensate for the different level of informativity.展开更多
Background:Perceptual profiles,or the performance on visual-perceptual tasks that reflect early visual information processing,have been used to suggest condition-specific visuo-perceptual abilities across neurodevelop...Background:Perceptual profiles,or the performance on visual-perceptual tasks that reflect early visual information processing,have been used to suggest condition-specific visuo-perceptual abilities across neurodevelopmental conditions(NDCs).The complexity-specific hypothesis(Bertone et al.,2010)was based on perceptual profiles defined by a selective decrease in sensitivity to more complex,texture-defined information in adults with autism and fragile-x syndrome,suggesting the atypical development of neural networks underlying early perception in NDCs.The aim of this study was to evaluate whether the complexity-specific hypothesis is applicable to children and adolescents with different NDCs by defining and comparing their perceptual profiles.Methods:A single interval,two alternative forced-choice identification paradigm was used to measure the perceptual profiles of 64 participants with a NDC(MIQ=78)and 43 typically developing(TD)participants(MIQ=103),aged 5 to 17 years.Participants with a NDC were diagnosed with either:autism spectrum disorder(ASD,n=32),attention deficit/hyperactivity disorder(ADHD,n=9),or intellectual disability(ID,n=12).Perceptual profiles were defined by measuring participants’sensitivity to static(orientation identification task)and dynamic(direction identification task)gratings(1 cpd)defined by either luminance(simple)or texture(complex)information.The Weschler Abbreviated Scale of Intelligence 2(WASI-2)was used as a measure of cognitive ability.Results:When performance was averaged across NDC and TD participants,no between-group difference in sensitivity was found for any of the conditions assessed.However,when assessed as a function of diagnosis,we found that the ID group was less sensitive to both the luminance(P=0.04)and texture-defined(P=0.01)dynamic information when compared to the TD group.Notably,although the perceptual profile of the ASD group was similar of that of the TD group,a significant positive relationship between mental age and sensitivity to both texture-defined static(r=−0.5)and dynamic(r=−0.4)information was found.Conclusions:The findings demonstrate that different conditions-specific perceptual profiles exist across children and adolescents with different types of NDCs,exemplified by differences found in this study for the ID group.In addition,the positive relationship between perceptual performance and mental age within the ASD group suggests that these perceptual abilities may still be undergoing maturation during the age-range assessed,and provides support for the complexity-specific hypothesis specific to the ASD profile during development.These results exemplify the importance of defining perceptual profiles at different periods of development across NDCs,since the tenets of most perceptually-relevant cognitive theories are based primarily on adult data.展开更多
目的:依托信息化技术,实现处方(医嘱)点评、审核与药历的自动化,提高药师在临床药学工作方面的效率,促进合理用药。方法:基于处方(医嘱)、临床检查指标记录、病历的电子化,在医院局域网络上,应用Microsoft SQL Server 2008、Power Desig...目的:依托信息化技术,实现处方(医嘱)点评、审核与药历的自动化,提高药师在临床药学工作方面的效率,促进合理用药。方法:基于处方(医嘱)、临床检查指标记录、病历的电子化,在医院局域网络上,应用Microsoft SQL Server 2008、Power Designer 12.5建立数据库,采用动态网页技术,开发处方(医嘱)评价与药物利用研究系统。结果与结论:该系统的开发包括后台子系统和前台子系统的建立,其中后台子系统包括药品信息数据库、动态网页、药品配对系统、处方(医嘱)与患者信息读取工具、未配对药品查询工具、数据备份工具、导出工具等,前台子系统包括门诊处方点评、审核模块,医嘱点评模块,处方(医嘱)数据报表图形模块,药历模块等;该系统的应用可为药师的临床药学工作提供处方(医嘱)动态监测及超常预警的平台、资源共享的强大平台、前瞻性研究工作平台、回顾性研究工作平台,符合当今药师快节奏工作的需求,值得进一步开发与推广。展开更多
基金supported by the National Science Foundation of China(Grant No.61272067,61370229)the National Key Technology R&D Program of China(Grant No.2012BAH27F05,2013BAH72B01)+1 种基金the National High Technology R&D Program of China(Grant No.2013AA01A212)the S&T Projects of Guangdong Province(Grant No.2016B010109008,2014B010117007,2015A030401087,2015B010109003,2015B010110002)
文摘XML data can be represented by a tree or graph and the query processing for XML data requires the structural information among nodes. Designing an efficient labeling scheme for the nodes of Order-Sensitive XML trees is one of the important methods to obtain the excellent management of XML data. Previous labeling schemes such as region and prefix often sacrifice updating performance and suffer increasing labeling space when inserting new nodes. To overcome these limitations, in this paper we propose a new labeling idea of separating structure from order. According to the proposed idea, a novel Prime-based Middle Fraction Labeling Scheme(PMFLS) is designed accordingly, in which a series of algorithms are proposed to obtain the structural relationships among nodes and to support updates. PMFLS combines the advantages of both prefix and region schemes in which the structural information and sequential information are separately expressed. PMFLS also supports Order-Sensitive updates without relabeling or recalculation, and its labeling space is stable. Experiments and analysis on several benchmarks are conducted and the results show that PMFLS is efficient in handling updates and also significantly improves the performance of the query processing with good scalability.
文摘介绍了信息化发展对制造业带来的影响和要求,提出了信息管理服务于制造过程的重要性;结合企业产品订单化生产管理系统的开发实例,比较分析了C/S和B/S两种架构,介绍了基于C/S架构的生产管理系统的开发设计思路与方法;介绍该架构管理系统给传统生产管理带来的优势;比较和分析了VC++、SQL Server 2000等系统开发技术;在此基础上研究了系统的主要功能、体系结构以及实现方法。
文摘Textual informativity is one of the seven standards of textuality. This paper focuses on the shift among three orders of textual informativity. And also probe into some strategies to compensate for the different level of informativity.
文摘Background:Perceptual profiles,or the performance on visual-perceptual tasks that reflect early visual information processing,have been used to suggest condition-specific visuo-perceptual abilities across neurodevelopmental conditions(NDCs).The complexity-specific hypothesis(Bertone et al.,2010)was based on perceptual profiles defined by a selective decrease in sensitivity to more complex,texture-defined information in adults with autism and fragile-x syndrome,suggesting the atypical development of neural networks underlying early perception in NDCs.The aim of this study was to evaluate whether the complexity-specific hypothesis is applicable to children and adolescents with different NDCs by defining and comparing their perceptual profiles.Methods:A single interval,two alternative forced-choice identification paradigm was used to measure the perceptual profiles of 64 participants with a NDC(MIQ=78)and 43 typically developing(TD)participants(MIQ=103),aged 5 to 17 years.Participants with a NDC were diagnosed with either:autism spectrum disorder(ASD,n=32),attention deficit/hyperactivity disorder(ADHD,n=9),or intellectual disability(ID,n=12).Perceptual profiles were defined by measuring participants’sensitivity to static(orientation identification task)and dynamic(direction identification task)gratings(1 cpd)defined by either luminance(simple)or texture(complex)information.The Weschler Abbreviated Scale of Intelligence 2(WASI-2)was used as a measure of cognitive ability.Results:When performance was averaged across NDC and TD participants,no between-group difference in sensitivity was found for any of the conditions assessed.However,when assessed as a function of diagnosis,we found that the ID group was less sensitive to both the luminance(P=0.04)and texture-defined(P=0.01)dynamic information when compared to the TD group.Notably,although the perceptual profile of the ASD group was similar of that of the TD group,a significant positive relationship between mental age and sensitivity to both texture-defined static(r=−0.5)and dynamic(r=−0.4)information was found.Conclusions:The findings demonstrate that different conditions-specific perceptual profiles exist across children and adolescents with different types of NDCs,exemplified by differences found in this study for the ID group.In addition,the positive relationship between perceptual performance and mental age within the ASD group suggests that these perceptual abilities may still be undergoing maturation during the age-range assessed,and provides support for the complexity-specific hypothesis specific to the ASD profile during development.These results exemplify the importance of defining perceptual profiles at different periods of development across NDCs,since the tenets of most perceptually-relevant cognitive theories are based primarily on adult data.
