基于智能Agent的企业知识管理系统模型研究

基于企业知识管理文献的回顾,从过程视角概括出一个通用的企业知识管理系统模型．根据智能Agent的技术特点,提出一个包含7种主要智能Agent的人性化知识管理系统的模型,并对主要智能Agent的功能进行了描述．     

强Agent社会智能系统及模态逻辑应用

基于系统对Agent的应用,将Agent分为强Agent和弱Agent两类．论述了有关强Agent的概念及其特性;提出了一个能处理社会智能的模态逻辑系统(MLMS)模型,MLMS采取模态逻辑处理系统中的强Agent精神状态;讨论了MLMS的模态逻辑语义和语法．     

强Agent社会智能系统及模态逻辑应用

基于系统对Agent的应用，将Agent分为强Agent和弱Agent两类．论述了有关强Agent的概念及其特性；提出了一个能处理社会智能的模态逻辑系统(MLMS)模型，MLMS采取模态逻辑处理系统中的强Agent精神状态；讨论了MLMS的模态逻辑语义和语法．     

一种基于影响图学习其他Agent模型方法

为了实现动态环境中Agents之间的有效协作,Agent必须能够识别其他Agent的模型。用影响图作为Agent模型表示工具,给定Agent的一个初始模型和它的历史行为．在能力、优先和信念学习的基础上来构建新的模型。学习的方法是用其他Agent的历史行为作为训练集．利用神经网络学习技术来修改效用函数。     

多Agent企业供需网协调管理机制研究

给出了一个多Agent供需网体系结构，并通过供需流过程管理模型及供需流与Agent的交互关系，研究了多Agent企业供需网协调机制，为企业供需关系的实现提供了一个柔性的解决方案．     

基于贝叶斯学习的Agent谈判策略构造研究

提出了一个在电子商务中辅助用户进行谈判的智能Agent谈判模型，并在模型中引入了贝叶斯学习方法，使得Agent在谈判过程中能更好地调整谈判策略，提高谈判效率．     

基于移动Agent的实时道路交通导航系统模型

介绍一个基于移动Agent的实时道路交通导航系统模型，在模型中，移动交通工具启动时间约束的导航需求，系统计算基于路网的最佳路径和实时的交通数据，并将结果返回给移动客户．为了最小化维护数据的开销，系统采用分布式移动Agent的协作方法，减少通信数量和提高系统的可测量性．设计了一个两级的交通图配置组织实时交通数据来支持导航的需求，以减少系统空间和通信的开销．在系统模型中，Agent使用APoP来维护实时的交通数据的一致性．该模型可以有效地提供及时的导航需求服务．     

一种基于Agent支持电子供应链和B2B电子商务的工作流模型

在WfMC基础上，给出一个跨企业间的工作流模型．在模型中引入Agent技术．并考虑到现代企业运用电子商务技术和采用电子供应链管理的新特点，提出一种基于Agent支持电子供应链和B2B电子商务的工作流模型．     

多Agent的层次合作模型及任务规划

在多Agent环境中，许多任务并不是一个Agent可以独立完成的，在出现能力不足或条件不足时，必须联合多个Agent成员来完成该任务．针对这种情况，文中提出了一个多Agent层次合作模型，将合作对象通过联合能力组成一个层次合作序列，以较大粒度的联合能力为规划单元，以层次合作目标为规划目标，使任务规划和任务管理变得简单和清晰．文中同时给出了确定合作对象和形成动态合作组的方法．并对合作任务的规划进行了讨论．     

一种基于Agent的混合供应链管理新模型

现代加工企业的供应链是一个世界范围的网络．敏捷性已经成为很多企业成败的关键．提出一个建立在软件Agent上的供应链管理模型HSCM．为了将企业的整个供应链协调起来，HSCM采用了两种Agent之间的协作方式：黑板和电子市场．企业内部Agent通过黑板自动共同解决企业在生产过程出现的各种问题；企业之间的Agent通过电子市场找到原料的供应商和接收订单，从而实现企业的敏捷制造．     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.