14,546 research outputs found

    An Intelligent Data Mining System to Detect Health Care Fraud

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    The chapter begins with an overview of the types of healthcare fraud. Next, there is a brief discussion of issues with the current fraud detection approaches. The chapter then develops information technology based approaches and illustrates how these technologies can improve current practice. Finally, there is a summary of the major findings and the implications for healthcare practice

    Improvements to the Producer Price Index measure: The Final-Demand-Intermediate-Demand System

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    [Excerpt] The release of January 2014 Producer Price Index (PPI) data marks the transition from the Stage of Processing (SOP) aggregation system to the Final Demand–Intermediate Demand (FD–ID) aggregation system. The transition to the FD– ID system is the culmination of a longstanding PPI objective to improve upon the SOP aggregation system by incorporating price data for services, construction, government purchases, and exports. In comparison to the SOP system, the FD-ID system more than doubles PPI coverage of the U.S. economy to over 75 percent of in-scope domestic production. This issue of Beyond the Numbers presents 2013 PPI data based on the new FD–ID system. The PPI estimates shown with this system represent the beginning of wider coverage by the index, to be continued in subsequent issues

    Analysing B2B electronic procurement benefits – Information systems perspective

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    This paper presents electronic procurement benefits identified in four case companies. The benefits achieved in the case companies were classified according to taxonomies from the Information Systems discipline. Existing taxonomies were combined into a new taxonomy which allows evaluation of the complex e-procurement impact. Traditional financial-based methods failed to capture the nature of e-procurement benefits. In the new taxonomy, eprocurement benefits are classified using scorecard dimensions (strategic, tactical and operational), which allows the identification of areas of e-procurement impact, in addition the benefits characteristic is captured (tangible, intangible, financial and non-financial)

    Cancer Surveillance using Data Warehousing, Data Mining, and Decision Support Systems

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    This article discusses how data warehousing, data mining, and decision support systems can reduce the national cancer burden or the oral complications of cancer therapies, especially as related to oral and pharyngeal cancers. An information system is presented that will deliver the necessary information technology to clinical, administrative, and policy researchers and analysts in an effective and efficient manner. The system will deliver the technology and knowledge that users need to readily: (1) organize relevant claims data, (2) detect cancer patterns in general and special populations, (3) formulate models that explain the patterns, and (4) evaluate the efficacy of specified treatments and interventions with the formulations. Such a system can be developed through a proven adaptive design strategy, and the implemented system can be tested on State of Maryland Medicaid data (which includes women, minorities, and children)

    A unified view of data-intensive flows in business intelligence systems : a survey

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    Data-intensive flows are central processes in today’s business intelligence (BI) systems, deploying different technologies to deliver data, from a multitude of data sources, in user-preferred and analysis-ready formats. To meet complex requirements of next generation BI systems, we often need an effective combination of the traditionally batched extract-transform-load (ETL) processes that populate a data warehouse (DW) from integrated data sources, and more real-time and operational data flows that integrate source data at runtime. Both academia and industry thus must have a clear understanding of the foundations of data-intensive flows and the challenges of moving towards next generation BI environments. In this paper we present a survey of today’s research on data-intensive flows and the related fundamental fields of database theory. The study is based on a proposed set of dimensions describing the important challenges of data-intensive flows in the next generation BI setting. As a result of this survey, we envision an architecture of a system for managing the lifecycle of data-intensive flows. The results further provide a comprehensive understanding of data-intensive flows, recognizing challenges that still are to be addressed, and how the current solutions can be applied for addressing these challenges.Peer ReviewedPostprint (author's final draft

    Building XML data warehouse based on frequent patterns in user queries

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    [Abstract]: With the proliferation of XML-based data sources available across the Internet, it is increasingly important to provide users with a data warehouse of XML data sources to facilitate decision-making processes. Due to the extremely large amount of XML data available on web, unguided warehousing of XML data turns out to be highly costly and usually cannot well accommodate the users’ needs in XML data acquirement. In this paper, we propose an approach to materialize XML data warehouses based on frequent query patterns discovered from historical queries issued by users. The schemas of integrated XML documents in the warehouse are built using these frequent query patterns represented as Frequent Query Pattern Trees (FreqQPTs). Using hierarchical clustering technique, the integration approach in the data warehouse is flexible with respect to obtaining and maintaining XML documents. Experiments show that the overall processing of the same queries issued against the global schema become much efficient by using the XML data warehouse built than by directly searching the multiple data sources

    Producer Inflation in 2014: Energy Prices Drop but Prices for Services Advance

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    The Producer Price Index (PPI) measures the average change over time in the selling prices received by domestic producers for their output. The PPI provides measures of final demand (price changes for goods, services, and construction sold to consumers, capital investment buyers, government, and export) and intermediate demand (price changes for goods, services, and construction sold to businesses, excluding capital investment goods, as inputs to production). This issue of Beyond the Numbers describes price changes in PPIs throughout 2014. Falling energy prices and rising services prices were some of the top movers in 2014
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