713 research outputs found

    A model to integrate Data Mining and On-line Analytical Processing: with application to Real Time Process Control

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    Since the widespread use of computers in business and industry, a lot of research has been done on the design of computer systems to support the decision making task. Decision support systems support decision makers in solving unstructured decision problems by providing tools to help understand and analyze decision problems to help make better decisions. Artificial intelligence is concerned with creating computer systems that perform tasks that would require intelligence if performed by humans. Much research has focused on using artificial intelligence to develop decision support systems to provide intelligent decision support. Knowledge discovery from databases, centers around data mining algorithms to discover novel and potentially useful information contained in the large volumes of data that is ubiquitous in contemporary business organizations. Data mining deals with large volumes of data and tries to develop multiple views that the decision maker can use to study this multi-dimensional data. On-line analytical processing (OLAP) provides a mechanism that supports multiple views of multi-dimensional data to facilitate efficient analysis. These two techniques together can provide a powerful mechanism for the analysis of large quantities of data to aid the task of making decisions. This research develops a model for the real time process control of a large manufacturing process using an integrated approach of data mining and on-line analytical processing. Data mining is used to develop models of the process based on the large volumes of the process data. The purpose is to provide prediction and explanatory capability based on the models of the data and to allow for efficient generation of multiple views of the data so as to support analysis on multiple levels. Artificial neural networks provide a mechanism for predicting the behavior of nonlinear systems, while decision trees provide a mechanism for the explanation of states of systems given a set of inputs and outputs. OLAP is used to generate multidimensional views of the data and support analysis based on models developed by data mining. The architecture and implementation of the model for real-time process control based on the integration of data mining and OLAP is presented in detail. The model is validated by comparing results obtained from the integrated system, OLAP-only and expert opinion. The system is validated using actual process data and the results of this verification are presented. A discussion of the results of the validation of the integrated system and some limitations of this research with discussion on possible future research directions is provided

    The application of OLAP technology in the automated risk assessment system for oil and gas fields

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    The article shows the advantages of using OLAP technology in the engineering of fields' development and its application in the automated risk assessment system

    The application of OLAP technology in the automated risk assessment system for oil and gas fields

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    The article shows the advantages of using OLAP technology in the engineering of fields' development and its application in the automated risk assessment system

    Четверта міжнародна наукова-практична конференція «Комп’ютерне моделювання в хімії і технологіях та системах сталого розвитку»

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    Розглянуто задачу використання багатовимірних структур для аналізу даних інвентаризації відходів промислового підприємства. Визначені основні вимоги та запропоновано модель даних, що враховує ієрархії і забезпечує побудову інформаційних відносин вимірювань і гиперкуба даних, і може бути використана як основа високопродуктивних рішень в промислових системах класу BI.The problem of the use of multidimensional data structures for analyzing waste inventory data of industrial enterprise is considered. A data model that takes the hierarchies and provides relationships between dimensions and data hypercube is defined. Proposed model can be used as a basis for high-performance solutions in industrial BI systems.Рассмотрена задача использования многомерных структур для анализа данных инвентаризации отходов промышленного предприятия. Предложена учитывающая множественные иерархии модель данных, которая обеспечивает построение информационных отношений измерений и гиперкуба данных и является основой высокопроизводительных решений в промышленных системах класса BI

    Visualizing Complex Energy Planning Objects With Inherent Flexibilities

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    A Decision Technology System To Advance the Diagnosis and Treatment of Breast Cancer

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    Geographical variations in cancer rates have been observed for decades. Described spatial patterns and trends have provided clues for generating hypotheses about the etiology of cancer. For breast cancer, investigators have demonstrated that some variation can be explained by differences in the population distribution of known breast cancer risk factors such as menstrual and reproductive variables (Laden, Spiegelman, and Neas, 1997; Robbins, Bescianini, and Kelsey, 1997; Sturgeon, Schairer, and Gail, 1995). However, regional patterns also may reflect the effects of Workshop on Hormones, Hormone Metabolism, Environment, and Breast Cancer (1995): (a) environmental hazards (such as air and water pollution), (b) demographics and the lifestyle of a mobile population, (c) subgroup susceptibility, (d) changes and advances in medical practice and healthcare management, and (e) other factors. To accurately measure breast cancer risk in individuals and population groups, it is necessary to singly and jointly assess the association between such risk and the hypothesized factors. Various statistical models will be needed to determine the potential relationships between breast cancer development and estimated exposures to environmental contamination. To apply the models, data must be assembled from a variety of sources, converted into the statistical models’ parameters, and delivered effectively to researchers and policy makers. A Web-enabled decision technology system can be developed to provide the needed functionality. This chapter will present a conceptual architecture for such a decision technology system. First, there will be a brief overview of a typical geographical analysis. Next, the chapter will present the conceptual Web-based decision technology system and illustrate how the system can assist users in diagnosing and treating breast cancer. The chapter will conclude with an examination of the potential benefits from system use and the implications for breast cancer research and practice

    Context-aware OLAP for textual data warehouses

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    Decision Support Systems (DSS) that leverage business intelligence are based on numerical data and On-line Analytical Processing (OLAP) is often used to implement it. However, business decisions are increasingly dependent on textual data as well. Existing research work on textual data warehouses has the limitation of capturing contextual relationships when comparing only strongly related documents. This paper proposes an Information System (IS) based context-aware model that uses word embedding in conjunction with agglomerative hierarchical clustering algorithms to dynamically categorize documents in order to form the concept hierarchy. The results of the experimental evaluation provide evidence of the effectiveness of integrating textual data into a data warehouse and improving decision making through various OLAP operations

    Многомерный подход к анализу эксперементальных данных исследований

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    The work is considered of aspects in using the multivariate analysis data. It means the ability to identify new relationships and prediction of the trial’s course. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/2859
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