Data visualization and analysis within a Hydrologic Information System: Integrating with the R statistical computing environment

This paper presents a prototype software system for visualization and analysis of hydrologic data that provides interoperability between the Consortium of Universities for the Advancement of Hydrologic Science, Inc. (CUAHSI) Hydrologic Information System (HIS) and the R statistical computing environment. By linking these two systems within a single desktop software application, an integrated hydrologic data management and analysis environment has been created that simplifies the process used by scientists and engineers to find, access, organize, and analyze the hydrologic data needed in modeling and managing hydrologic and environmental systems. The implementation of this work is a software plug-in for the CUAHSI HIS HydroDesktop software system called HydroR. We describe the design, graphical user interface, and implementation of the HydroR plug-in. An example application of HydroR is presented in which total suspended solids concentrations are modeled for the Little Bear River using a regression developed from turbidity and total suspended solids observations downloaded from the CUAHSI HIS using HydroDesktop. Finally, we conclude with a summary of our experience in developing interoperability between HIS and R and suggest future developments that can extend the capabilities we have developed.     

An Integrated Hydrologic Modeling and Data Assimilation Framework

The Land Information System (LIS) is a multiscale hydrologic modeling and data assimilation framework that integrates the use of satellite and ground-based observational data products with advanced land-surface modeling tools to aid several application areas, including water resources management, numerical weather prediction, agricultural management, air quality, and military mobility assessment.     

Integrated process modeling: An ontological evaluation

Process modeling has gained prominence in the information systems modeling area due to its focus on business processes and its usefulness in such business improvement methodologies as Total Quality Management, Business Process Reengineering, and Workflow Management. However, process modeling techniques are not without their criticisms [13]. This paper proposes and uses the Bunge-Wand-Weber (BWW) representation model to analyze the five views — process, data, function, organization and output — provided in the Architecture of Integrated Information Systems (ARIS) popularized by Scheer [39, 40, 41]. The BWW representation model attempts to provide a theoretical base on which to evaluate and thus contribute to the improvement of information systems modeling techniques. The analysis conducted in this paper prompts some propositions. It confirms that the process view alone is not sufficient to model all the real-world constructs required. Some other symbols or views are needed to overcome these deficiencies. However, even when considering all five views in combination, problems may arise in representing all potentially required business rules, specifying the scope and boundaries of the system under consideration, and employing a “top-down” approach to analysis and design. Further work from this study will involve the operationalization of these propositions and their empirical testing in the field.     

集成化的异常入侵检测系统

提出了一种多方法集成的异常入侵检测系统,运用隐马尔可夫模型、统计方法和基于规则的方法,测量系统调用序列、资源使用率、文件访问权限的正常行为,并将其集成,实验表明此系统具有很好的性能。     

An agent based modeling approach for determining optimal price-rebate schemes

Delayed incentives in the form of cash mail-in rebates have become very popular. While some research has been conducted on consumer perception and behavior toward rebates, little research has been undertaken with respect to a seller’s optimal rebate strategy. We use an agent-based modeling approach for jointly determining optimal price and rebate value. This approach has been previously applied to pricing and can capture some aspects of the problem which are difficult to analyze using traditional mathematical modeling. The model indicates that rebates are much more profitable when their values are jointly determined with price. In addition, the profitability of rebates at a given time depends on past consumers’ experience with rebates and that consumers’ memory of their past rebate redemption behavior plays an important role in determining the profitability of rebates. Also, the analysis shows that agent-based modeling may provide an alternative method for analyzing problems in which interactions between participants in the systems, i.e. consumers, sellers, and regulating agencies, are important in determining the overall behavior of the system.     

An extractive text summarization approach using tagged-LDA based topic modeling

Multimedia Tools and Applications - Automatic text summarization is an exertion of contriving the abridged form of a text document covering salient knowledge. Numerous statistical, linguistic,...     

Hydrologic modeling and forecasting: role of thresholds

This communication discusses the potential role of ‘thresholds’ in hydrologic modeling and forecasting. Based on representative examples of studies employing data learning techniques in hydrology (e.g. artificial neural networks, chaos theory, optimization procedures), some of the problems in the existing data calibration and validation procedures are highlighted. Deriving an analogy between human behavior and catchment behavior, emphasizing their internal characteristics and their responses to external events, the concept of thresholds and its use in catchment hydrology are presented. In view of recent calls to focus on dominant processes in hydrology, a proposal is made for integration of concepts of Dominant Processes and Thresholds. The promises and limitations of this proposal are also explained in brief.     

基于混合模式的高速公路综合管理信息系统

根据现代高速公路综合管理的要求，从软件的需求分析着手，综合阐述了系统的总体结构，在分析C／S和B／S混合系统架构的基础上，提出了基于混合结构的系统模型。     

基于Web环境的EIRM信息系统研究

从Web角度研究了企业集成风险管理（EIRM）信息系统问题。在系统界定基础上,提出了EIRM信息系统的研究框架,建立了风险信息智能成熟模型,给出了运用该模型处理风险数据的五个关键步骤。     

Study of An Integrated Security Solution for Network Information System

The Internet-based network information system brings a series of security problems, such as the ability of fault tolerance, the ability of disaster tolerance, the ability of secret communication, secret data storage, clients＇ authentication and so on. In this paper, we study the integrated security of network information system from hardware architecture, data encryption, authentication, firewall and application.     

基于混合模式的高速公路综合管理信息系统

根据现代高速公路综合管理的要求,从软件的需求分析着手,综合阐述了系统的总体结构,在分析C/S和B/S混合系统架构的基础上,提出了基于混合结构的系统模型。     

Interactive user modeling: An integrative explicit-implicit approach

User modeling issues are examined in the context of a user-adapted guidance system. The system provides users with instructions about natural tasks without introducing a special time-consuming sub-dialog to learn the user's knowledge. A model for providing such guidance is developed on the basis of a phenomenological analysis of human guidance, and illustrated by a system that gives directions in geographical domains. The main features of the user model design include: (1) Bothimplicit andexplicit acquisition methods are employed in a flexible manner; (2) The guidance instructions and the user model are generated incrementally and interchangeably; (3) User's responses and no-responses are employed as a source of information for the user modeling. The model and the resulting system's performance are examined in light of recent development in the cognitive literature.E. Shifroni is a PhD candidate in Computer Science at the Technion. He received his B.A. in Mathematics and Computer Science from the Hebrew University of Jerusalem in 1982, and his M.S. degree in Computer Science from the same University in 1984. His primary interests lie in the areas of dialog systems and user modeling. This paper summarizes the current state of his thesis work on interactive user modeling.B. Shanon studied philosophy and linguistics in Tel-Aviv university, and linguistics and psychology at Stanford (PhD in psychology, 1974). After teaching at MIT joined the Department of Psychology of the Hebrew University, of which he is now chairperson. Also served as a visiting professor at Cornell University and Swarthmore College, as a visiting fellow at Princeton University, and as a visiting scholar at the center of interdisciplinary Research of the University of Bielefeld and at the Rockefeller Foundation Study center in Bellagio. Research interest focus on the conceptual foundation of cognitive science, the phenomenology of human conscious mentation, and on the psychology of creativity. A monograph presenting a comprehensive critique of the representational view of mind and a search for alternatives to it is forthcoming.     

智能化交管综合业务管理系统

交管信息的综合化和智能化是我国交通运输系统发展的趋势.在分析交通管理系统现状和存在问题的基础上,提出了一个基于商务智能体系的交管综合业务管理系统总体框架,并就其中的数据仓库设计、异构数据集成、联机分析处理和数据挖掘等关键问题给出了相应的设计方案.该设计方案已经在某省级交管系统中得到了应用.     

IVIS: An Integrated Volumetric Inspection System

A novel approach to automated visual inspection based on comparing a volumetric model of a reference object to a volumetric model of an actual object which is iteratively created from sensor data is presented. The use of volumetric models gives this approach a number of distinct advantages over more traditional surface-based methods. First, there is no need to identify "features," which is important when inspecting objects whose features are difficult to identify. Second, volumetric inspection lends itself naturally to multisensor applications. Finally, true 3-D comparisons of the reference and sensed objects can be easily carried out using volumetric models.     

基于小波和LS-SVM的软测量建模方法

针对工业过程中某些重要过程变量难以实现在线检测的问题,提出了一种基于小波和最小二乘支持向量机(LS-SVM)的软测量建模方法.首先通过小波变换把样本数据序列分解为不同频段的子序列,然后对这些子序列分别采用LS-SVM进行建模,最后通过小波重构得到主导变量的估计值.其中采用量子粒子群算法(PSO)来优化选取LS-SVM参数.通过仿真实验验证此方法,实验结果表明所提出的方法具有估计精度高、泛化能力强等优点.     

An environment for reusing ontologies within a knowledge engineering approach

Domain models can be constructed more easily and made more robust by reusing ontologies in a well-defined way. In this paper the KARO approach is introduced which provides various means of retrieving and adapting components of an ontology as part of a domain model construction process. KARO is based on the knowledge-processing component LILOG-KR provided by the LILOG text-understanding system. Above all, the notion of classification is applied for the retrieval of relevant categories. The upper structure of LILOG-KB serves as an exemplary ontology. By integrating KARO into the Model-based and Incremental Knowledge Engineering Environment (MIKE) the reuse of a predefined ontology can be integrated into the development process of expert systems in a systematic way.     

实时监控系统及在管理信息系统中的集成方案

本文结合某热电企业实例，讨论了893实时监控系统，热电企业管理信息系统，分析了在MIS系统中集成实时监控系统所遇到的问题和解决方法，由此提出了一套在MIS系统中集成实时监控系统的可行性方案。     

Dynamic process monitoring based on a time-serial multi-block modeling approach

A time-serial multi-block modeling (TSMBM) algorithm is proposed for dynamic process monitoring, which considers a unified framework of multi-block modeling and auto-correlation extraction. The proposed TSMBM-based method first constructs time-serial multi-blocks according to the sampling time nodes, the correlation between different blocks then serves as a good representation for the auto-correlated characteristic in the given data. With the utilization of multi-block projecting bases, three categories of auto-correlated variations can be captured in different block models. Furthermore, the Kalman filter is employed to generate dynamic noise and measurement noise inheriting little auto-correlation for online monitoring purposes. Finally, the effectiveness and superiority of the proposed method are validated through comparisons with other state-of-art dynamic process monitoring approaches.