use a report to design the dimensional model

... The Data Warehouse Toolkit The Data Warehouse Toolkit The Definitive Guide to Dimensional Modeling Third Edition Ralph Kimball Margy Ross The Data Warehouse Toolkit: The Defi nitive Guide to Dimensional ... chance of success Simplicity is the fundamental key that allows users to easily understand databases and software to efficiently navigate databases In many ways, dimensional modeling amounts to ... complex schemas in the presentation area NOTE A dimensional model contains the same information as a normalized model, but packages the data in a format that delivers user understandability, query...

Ngày tải lên: 24/04/2014, 16:10

... et al, 1996) In such models, the estimated rate for a given area is based on the data for the target area plus that for nearby areas Depending on the variability in the data for the target area ... codes, age groups, and so on) So in addition to making data available to decision makers and the public, they also facilitate work already done by state and local public health officials and analysts ... systems in which all possible tables and analyses are prepared in advance At the other, all calculations are done using individual-level data In between, a system can maintain a database with counts...

Ngày tải lên: 18/02/2014, 21:20

... meaning At the point where a unique node is determined, the mapping is made to a data item name via the CAN table This data item name is used in the generatlon of the query to the data management ... each application that the user may access Associated with an applicatlon name is a set of file names of the tables for the application If access is to be restricted, a copy of the CAN and mapping ... analyze the question, map it to data items, and then express the query in a standard language (IL) A translator is written for each data management system in order to rephrase the IL query into the...

Ngày tải lên: 08/03/2014, 18:20

... important measure The questionnaire method can and has been used (in the case of MT and USL), but as yet there is too little experience to measure user satisfaction Users seem very good at adapting ... selfexplanatory, as i s the absence of dsfiniclons from ¥-F and T-T (although some abbreviations used there fall in this category) and the absence o f some other c a t e g o r i e s from T-T and ... "List the ships that have water." Sentences with relative clause (or related construction) and cemparator, e.g., "List the ships with a beam less than lO00." Sentences with quantifier and relative...

Ngày tải lên: 17/03/2014, 19:20

... Lastly, they can be used to model aggregation, generalization and most other environments addressed by semantic data models The advantage of data base procedures is that a user does not need to ... in a main memory data structure Then, if the same or another user materializes an object with the same description, the one already materialized can be used instead An example of this situation ... only marginally more expensive to maintain than conventional ones CONCLUSIONS This paper has suggested that data base procedures are a natural way to model complex objects and to allow data base...

Ngày tải lên: 28/04/2014, 13:31

... of subband error The two mechanisms facilitate the significant normalization of subband data and a quantization scheme design with linear distortion characteristics EURASIP Journal on Advances ... performance Several experiments are also taken by using the MIT-BIH arrhythmia database [13] The rest of this paper is organized as follows The nonlinear quantization scheme with the approximate ... (4), QF can be an available variable for desired PRD and CR control In order to explore the linear control performance of QF, all 48 ECG signals recorded in the MIT-BIH arrhythmia database were...

Ngày tải lên: 21/06/2014, 05:20

... CompactDAQ to design a portable “Sound Camera” to analyze unwanted noise in automobile testing NI Products LabVIEW, CompactDAQ “We need a quote here to highlight how great LabVIEW, cDAQ and S&V are ... fundamentals • Ease of Data Acqusition (DAQ) with NI • Application Areas • Web-based Remote Monitoring • Next Steps National Instruments at A Glance • Leaders in computer-based measurement and automation ... Engineers and Scientists APIs and Drivers Analysis Libraries Custom User Interfaces Deployment Targets Technology Abstractions Programming Approaches 21 LabVIEW is a Programming Language • Graphical...

Ngày tải lên: 27/06/2014, 10:20

Ngày tải lên: 04/07/2014, 07:05

... default data types can be used as an array type What's more, when you have an array type, all of the available programming APIs available allow you to interface your application to Postgres to ... means that if a web application’s security was ever breached, then the only database the attacker has access to is the database used by that host The attacker would need to gain access to other ... all databases in the server sameuser: Allow access only to databases owned by the connecting user @: Allow access only to named database files Samegroup: Allow access only to databases...

Ngày tải lên: 12/07/2014, 17:21

... new data ;acquisition system allows a quantitative analysis of root architecture with all dynamic aspects because the location of all branches and root tips are recorded in space and in each time ... records are completed with automatically computed information about the segment position in the branching system hierarchy Coordinates and ’structural’ information are stored in the data storage ... particular points (e.g., picture enlarging, cursor, etc.) are also provided Data storage structure The data storage structure is made up of data sets: a dictionary describing the experiment, the...

Ngày tải lên: 09/08/2014, 02:21

... to be of a certain educational level, clear about what they are being asked to record, and comfortable with what the researcher plans to with the data [1] SMS - a novel method to collect data ... alternative data set for the one-year period where missing data were substituted by the mean value of the existing data This was done to be able to use the BlandAltman calculations for the average difference ... are automatically transferred to an electronic data file that can be accessed directly for analysis Such a system, the SMS-T-Q [9], was used in a research project that formed the basis to the...

Ngày tải lên: 13/08/2014, 14:20

... analysis, and backs the data up to a database In this framework, the data management systems database is the primary backup while the gateways database is a secondary backup in case the management ... receiving data from the sink, doing any preliminary processing necessary, storing the data to a local database, and forwarding the data to the data management system or application via the Internet ... the Stargate hardware and takes into account that the gateway may be resource limited whereas our assumption is that the gateway machine has access to wall power While many of the systems reported...

Ngày tải lên: 24/08/2014, 12:25

... supports the use of a data model A data model is a language with which one can define a database structure and manipulate the data stored in it The most prominent data model is the relational data model ... of a good database query language pays off 3.3.3 The relational data model A data model is a language that allows the definition of • the structures that will be used to store the base data, • the ... availability at all times As potentially many users rely on the availability of the data, the data must be safeguarded against possible calamities Regular back-ups of the data set, and automatic...

Ngày tải lên: 21/10/2014, 10:09

... • A capacitor is an element capable of storing charge – The amount of charge is proportional to the voltage across the capacitor Q = CV, C is known as the capacitance (measured in Farads) – Taking ... distance – Contact wear as a result of frictions Ch3 - DAS 41 Capacitive displacement sensors • The capacitance of a parallel plate capacitor is d is the separation between the plates, A is the area ... – Parameters • C: thermal capacitance of the mercury • R: thermal resistance of the glass to heat transfer • θF: temperature of the fluid • θ(t): temperature of the thermometer – The equivalent...

Ngày tải lên: 24/10/2014, 12:20

... granting access to the data on the basis of users’ clearance level and the sensitivity level of the data Users and data are considered as subjects and objects, individually, in the mandatory model ... information from the data, and make use of the extracted information Therefore, DMSs include database systems, data warehouses, and data mining systems Data could be structured data such as that ... fundamental database technologies; layer consists of interconnection and interoperability of databases as well as migration of legacy databases; and layer is about information extraction and sharing...

Ngày tải lên: 13/08/2015, 10:01

... data In these heads, a voltage was induced to the coil when the read/write gap was passed by the magnetic transitions recorded on the medium The heads currently available use a separate read ... for all other DLC films, is their poor durability and adhesion to the Al2O3/TiC (AlTiC) ceramic substrate of the head, which may cause delamination of the coating off the substrate and abrupt failure ... capacity, performance and reliability are necessary One of the most important factors for sustaining the present cost advantage of tape against hard disk storage is to advance its technology to...

Ngày tải lên: 09/09/2015, 10:17

... the RTOLAP queries in such a hybrid architecture by materializing the historical data into a data cube and dynamically combining the data cube with the real-time data 2.3.3 Data Cube Maintenance ... key/value store, R-Store, for the OLTP and real-time aggregation query processing A real-time data cube is maintained as the historical data, and the newly updated data are merged with the data ... propose ART (AQUA, R-Store and TI), a large scale microblogging data management system that is able to handle various user queries (such as updates and real-time search) and the data analysis...

Ngày tải lên: 09/09/2015, 11:16

... a unified view of these data [56] The major differences between data integration and data fusion is that data integration is used to combine the data and return the combination of the data to the ... scientific data are continuous data and cannot be processed as categorical data in data analytics such as aggregation functions Usually we can only observe the value of these continuous data, but cannot ... source: the conservative approach and the pragmatic approach Each approach can lead to a different source-ordering strategy Our experiments show that the pragmatic approach always outperforms the...

Ngày tải lên: 10/09/2015, 09:09

... because each node maintains a local database and data are inserted/deleted without notification to the other nodes In that case, we can only get a rough estimation Due to the updates made to each ... for local data, a read-only copy and a writable copy The read-only copy is used to process queries and shared with others, while the writable copy accepts the updates to the local database The two ... support range queries and at the same time keep the load balance among nodes As hash function is not used in the key generation and data dissemination, skewed data distribution may lead to unbalanced...

Ngày tải lên: 10/09/2015, 15:49

... belonging to calibration/training set cutof f statistical cutoff value for the parameter model indicator for value/parameter obtained from training/modeling sample indicator for value/parameter obtained ... reference to positive data matrix Special notations used in specific chapters are explained in-situ ix ABBREVIATIONS ANN Artificial Neural Network ARA Amino-acid Residue Association CART Classification And ... motivated the development of alternate data treatment approaches in order to facilitate statistically feasible, graphically visualizable, computationally a ordable analysis of complex process and...

Ngày tải lên: 11/09/2015, 16:05