data quality problems and roles

... oil and natural gas (hereafter oil and gas) from federal lands and waters In fiscal year 2007, Interior’s Minerals Management Service (MMS) collected over $9 billion in oil and gas royalties and ... and gas production facilities in Wyoming, Colorado, and the Gulf of Mexico; sent questionnaires addressing production and royalty data issues to the 11 state and tribal members of the State and ... oil and gas production, which raises questions about the accuracy of oil and gas measurement Further, MMS’s systems and processes for collecting and verifying royalty data are inadequate and...

Ngày tải lên: 08/03/2014, 14:20

... urgent visits Highquality timeliness was associated with 18 percent fewer nonurgent and urgent visits, and high -quality access was associated with 27 percent fewer nonurgent visits and 33 percent ... programs and priorities in child health services research are available from: Denise M Dougherty, Ph.D Senior Advisor, Child Health and Quality Improvement Agency for Healthcare Research and Quality ... clinical guidelines and many treatments These variations in care can result in differences in health care costs, quality, and outcomes, according to these researchers They reviewed data on drugs given...

Ngày tải lên: 14/03/2014, 11:20

... matter and whether relevant aspects of health and quality of life are adequately covered The clinician focus groups included two GPs and three physiotherapists (Cardiff) and a GP, physiotherapist and ... acquired ethical approval, collected data, and commented on the manuscript CA collected data, contributed to analysis of data from patient interviews and focus groups, and commented on the manuscript ... large number can confuse clinicians and researchers wishing to select an instrument for application in randomised trials and clinical practice The lack of standardisation in the choice of instruments...

Ngày tải lên: 18/06/2014, 19:20

... of Thailand is limited as this study was conducted on a convenience sample of STOU students and would not be representative of the general population in Thailand Second, data quality and acceptability ... satisfied was the lack of equality in the item-scale correlations of RE3 and the other RE items and of MH3 and the other MH items Other studies Table 4: Inter-scale correlations and internal consistency ... negative affect (MH1, MH2 and MH4) Tests of scaling assumptions Standard deviations of items within a scale were similar and close to 1.0 for BP, GH, VT, SF and MH (scales with 5and 6-choice responses)...

Ngày tải lên: 18/06/2014, 19:20

... the qualityadjusted life-year (QALY), which serves as a composite indicator allowing quality and quantity of life to be combined in a single index [7] The possibility of combining quantity and quality ... constituent factors: utility and time But that is like comparing apples with oranges: quality (utility) and quantity (time) of life are of essentially different "data- types" and cannot be combined ... Health and Quality of Life Outcomes 2003, also led to changes in the way health is measured and the type and quantity of information gathered This transformation...

Ngày tải lên: 20/06/2014, 15:20

... problems, and finally • communication problems Data distribution Spatial data are collected and kept in a variety of formats by the producers themselves What data exists, and where and in what format and ... are required Metadata standards For metadata to be easily read and understood, standards create a common language for users and producers Metadata standards provide appropriate and adequate information ... the data set, and • Logical consistency of the data set Quality information is an important component of metadata, that is data about data Metadata is increasingly important as digital data...

Ngày tải lên: 21/10/2014, 10:09

... between an enterprise-wide data warehouse and localized data marts Recognize the difference between independent and dependent data marts Identify the data that is stored in a data warehouse Explain ... Examine data needed  Ascertain data availability  Determine data frequency  Decide the refresh cycle Types of Warehouse Data    Fact data - Measures Dimension data - Query drivers Summary data ... of data by examining where and why it is used List the data models that may already exist in a company and describe where they may be useful to the warehouse model Explain the two common data...

Ngày tải lên: 25/04/2013, 20:33

... field of Power Industry and Energy Development in Vietnam - International quality product and brand - Pioneering research and development of qualified electric equipment • Quality objectives: Võ ... provide products and services that satisfy all committed agreements - Improving quality of products and services to satisfy customers’ higher and higher demand - Being a reliable partner and a loyal ... establishment and development Our society is progress rapidly in accompany with the development of science and technology, sophisticated and highly susceptible microprocessor based on electronics and data...

Ngày tải lên: 24/07/2013, 09:11

Ngày tải lên: 14/08/2013, 12:10

... Chapter Collecting Data — The Class and the Array In This Chapter ᮣ Introducing the C# class ᮣ Storing data in an object ᮣ Assigning and using object references ᮣ Creating and building arrays ... Collecting Data — The Class and the Array The code for the VehicleDataOnly program is as follows: // VehicleDataOnly - create a Vehicle object, populate its // members from the keyboard and then ... dTopSpeed, nWeight, and bClunker I address the stop and go parts in Chapters and Because the class is so central to C# programming, the chapters in Part IV of this book spelunk the ins and outs of classes...

Ngày tải lên: 04/10/2013, 21:20

... communicate with a data source • Command: Needed to perform actions such as selecting, updating, and deleting data from a data source • DataReader: Needed to read data from a data source, one record ... PM Page 60 CHAPTER s DATA MODELS, DATASETS, AND THE ADO.NET INTERFACE Figure 3-10 Steps to add a data table to dataset Click the header of the newly created data table, and name it dtCreditLimit ... the job of gathering the data from a data source and temporarily holding it inside the dataset to be used by the report rendering engine Although we’ll create datasets and data tables manually,...

Ngày tải lên: 05/10/2013, 08:48

... Broker-controlled databases Primary database Instances 3-6 Standby database Standby database Standby database Standby database Standby database Standby database Standby database Standby database Standby database ... the standby databases to replace the primary database and take over production processing • Helps you logically define and create a Data Guard configuration consisting of a primary database and ... and managing standby databases • Command-line interface (CLI): – Started by entering DGMGRL at the command prompt where the Oracle server is installed – Enables you to control and monitor a Data...

Ngày tải lên: 26/10/2013, 20:15

... the redo data is applied to the standby database A standby database can be one of two types: a physical standby database or a logical standby database If needed, either type of standby database ... maintains each standby database by transmitting redo data from the primary database and then applying the redo to the standby database Similar to a primary database, a standby database can be ... single-instance Oracle database or an Oracle Real Application Clusters database A standby database can be either a physical standby database or a logical standby database: s Physical standby database Provides...

Ngày tải lên: 26/10/2013, 22:15

... 15x 60 ᎏ ᎏ = ᎏᎏ 15 15 x=4 Therefore, there are 7x = (7)(4) = 28 green candies and 8x = (8)(4) = 32 red candies Mean, Median, and Mode Examples Max is three years older than Ricky Unknown = Ricky’s ... remaining event by adding the known probabilities together and subtracting their total from – DATA ANALYSIS, STATISTICS, AND PROBABILITY – Graphs and Tables Inc rea se se rea Inc se a re Circle graphs ... green candies has a total of 60 candies in it The ratio of the number of green to red candies is 7:8 How many of each color are there in the bag? The sum of a number x and four is at least nine x+4≥9...

Ngày tải lên: 02/11/2013, 17:20

... STREAMS: MODELS AND ALGORITHMS with the high-level data mining process, and discovers data evolution regularities as well Our analysis and experiments demonstrate two important data mining problems, ... students and researchers It is hoped that this book will provide a reference to students, researchers and practitioners in both introducing the topic of data streams and understanding the practical and ... in the data stream case because of the huge volume of the underlying data Chapter 11 explores the problem of indexing and querying data streams Dimensionality Reduction and Forecasting in Data...

Ngày tải lên: 08/11/2013, 02:15

... both hardware and software technologies, automated data generation and storagehas become faster than ever Such data is referred to as data streams Streaming data is ubiquitous today and it is often ... of data streams We can categorize these solutions as data- based and task-based ones In data- based solutions, the idea is to examine only a subset of the whole data set or to transform the data ... wide variety of problems which require information about the summary distribution of the data In general, since many new data mining problems require summary information about the data, it is conceivablethat...

Ngày tải lên: 08/11/2013, 02:15

... Demand Classification of Data Streams, Proc 2004 Int Con$ on Knowledge Discovery and Data Mining (KDD '04), Seattle, WA [4] Babcock B., Babu S., Datar M., Motwani R., and Widom J (2002) Models and ... Wang H and Yu P S (2003) Online mining of changesfrom data streams: Research problems and preliminary results, In Proceedings of the 2003 ACM SIGMOD Workshop on Management and Processing of Data ... different types of datasets, includingunstructured ones, such as transaction and text datasets, semi-structured ones, such as XML datasets, and structured ones, such as graph datasets The patterns...

Ngày tải lên: 08/11/2013, 02:15

... watermark 94 DATA STREAMS: MODELS AND ALGORITHMS spatial locations in the data at which the data is being reduced, those at which the data is increasing, and those from where the data is shifting ... Kawasoe, and Setsuo Arikawa Online algorithms for mining semi-structured data stream In ICDM, pages 27-34,2002 [4] B Babcock, S Babu, M Datar, R Motwani, and J Widom Models and f Issues in Data Stream ... rooted trees and free trees using canonical forms In The 16th International Conference on ScientiJic and Statistical Database Management (SSDBM'04), 2004 [13] G Cormode, M Datar, P Indyk, and S Muthukrishnan...

Ngày tải lên: 15/12/2013, 13:15

... management and querying of stream data ([8, 17, 18, 16]), and data mining (classification and clustering) on stream data ([22, 19, 25, 29, 2, 15, 3, 41) Although such studies lead to deep insight and ... the form of stream data and studies OLAP and mining over partially materialized stream data cubes Our data structure, to certain extent, extend the previous work on H-tree and Hcubing ([20]) ... statistics, trends and outliers as well as other data characteristics of online stream data and will play an essential role in stream data analysis This study sets a framework and outlines an interesting...

Ngày tải lên: 15/12/2013, 13:15

... over data streams Data elements arrive on multiple data streams, and the system examines each data item as it arrives and attempts to assign it to one of a finite set of classes using a data ... assumption that, in certain data- stream processing applications, recent data is more useful and pertinent than older data In such cases, we would like to answer questions about the data only over the ... elements and maintaining approximate quantiles, are important problems that have been studied in database research as maintaining end-biased histograms and maintaining equidepth histograms These problems...

Ngày tải lên: 15/12/2013, 13:15