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Efficient and effective data cleansing for large database

Efficient and effective data cleansing for large database

Efficient and effective data cleansing for large database

... long time to execute when N is large Thus it is only suitable for small databases and is definitely impractical and infeasible for large databases Therefore, for large databases, approximate detection ... size of the database increases, the time in data cleansing grows linearly For very large databases, the data cleansing may take a very long time As the example shown in [HS95], a database with ... check and format standardization Data type check and format standardization can also be performed, such as, in the data field, Jan 2002 and 01/01/2002 can be standardized to one fixed format...
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Efficient and effective keyword search in XML database

Efficient and effective keyword search in XML database

... mandatory and single valued, unless the circle contains a “?” indicating it is optional and single valued, “+” indicating it is mandatory and multi-valued, and “*” indicating it is optional and ... graph in memory which is infeasible for large databases Blinks [25] address these problems by using a bi-level index for pruning and accelerating the search Its main idea is to maintain indexes ... schema languages in Chapter 1.2 Keyword search and motivation With increasing volumes of XML data transferred over the Internet, retrieving relevant XML fragments in XML documents and databases is...
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Báo cáo khoa học:

Báo cáo khoa học: "Leveraging Reusability: Cost-effective Lexical Acquisition for Large-scale Ontology Translation" potx

... not of great value for access to segments of video, may be important for organizing other concepts and for browsing the hierarchy These factors must be balanced in developing a cost-effective process ... translation accuracy for our system can be directly interpreted as quality measures for the lexical resources used and the process by which they were developed Evaluation We performed two different ... assumptions for lexical acquisition (Echizen-ya, et al., 2005; Kaji & Aizono, 1996; Rapp, 1999; Tanaka & Iwasaki, 1996) Most make use of either parallel corpora or a bilingual dictionary for the...
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Báo cáo hóa học:

Báo cáo hóa học: " Adaptive antenna selection and Tx/Rx beamforming for large-scale MIMO systems in 60 GHz channels" pptx

... nt Nt Antenna selection & Beamforming Nr Feedback nr RF Antenna selection & Beamforming Figure A 60 GHz MIMO system employing antenna selection and transmit/receive beamforming Once the antenna ... antenna selection and Tx/Rx beamforming for large-scale MIMO systems in 60 GHz channels EURASIP Journal on Wireless Communications and Networking 2011 2011:59 Note Note that in obtaining (20) ... have proposed a sequential antenna selection algorithm and an adaptive transmit/receive beamforming algorithm for large-scale MIMO systems in the 60 GHz band One constraint of the system under consideration...
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Báo cáo hóa học:

Báo cáo hóa học: " Research Article Distributed and Cooperative Link Scheduling for Large-Scale Multihop Wireless Networks" doc

... presented a distributed and cooperative link scheduling (DCLS) algorithm which is especially useful for large-scale multihop wireless networks This algorithm partitions a set of links into several ... Cruz, and L B Milstein, Distributed link scheduling, power control and routing for multihop wireless MIMO networks,” in Proceedings of the Fortieth Asilomar Conference on Signals, Systems and ... rate of link l averaged over all time slots To summarize, the distributed and cooperative link scheduling (DCLS) algorithm that we have developed is as follows Step Once all links are formed for...
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Chemical and pharmacological studies of ardisia elliptica antiplatelet, anticoagulant activities and multivariate data analysis for drug discovery

Chemical and pharmacological studies of ardisia elliptica antiplatelet, anticoagulant activities and multivariate data analysis for drug discovery

... and pharmacokinetic studies of A elliptica and its isolated bioactive component in rats 137 5.1 Ex vivo and in vivo antiplatelet and anticoagulant activities of A elliptica and β-amyrin in rats ... conventional process of repeated fractionation is a tedious process for the discovery of bioactive components, a platform method for drug discovery from plant extracts using multivariate data analysis (MVDA) ... Validation of GC-MS method for MVDA study 118 4.4.2.2 GC-MS analysis of all extracts and fractions 119 4.4.2.3 PCA and PLS-DA analysis of the extracts and fractions 122 4.4.2.4 Antiplatelet activities...
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Efficient and effective query processing of complex human motion sequences

Efficient and effective query processing of complex human motion sequences

... 20 Human Motion Sequences 20 2.1.1 Feature extraction of human motion sequences 21 2.1.2 Matching human motion sequences 21 Distance Measures of Time ... the problems of efficient and effective query processing of complex spatio-temporal sequences Our solutions on subsequence matching and subsequence join techniques over human motion sequences can ... sequences because data items in complex spatio-temporal sequences are high dimensional data A typical example of complex spatio-temporal sequences is human motion sequences The movements of human...
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Context data management for large scale context aware ubiquitous systems

Context data management for large scale context aware ubiquitous systems

... context- aware systems to make the transition from lab based deployments to a large scale real world setting 1.2 Data management in context- aware systems As the primary function of context- aware systems ... effective context data management system The essential functions of a context data management system are – acquiring context data, processing the acquired data to generate higher order context information, ... related work 13 2.1 Design requirements for context data management systems 14 2.2 Review of data management in context- aware systems 17 2.3 Summary 23...
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Query Languages and Data Models for Database Sequences and Data Streams doc

Query Languages and Data Models for Database Sequences and Data Streams doc

... Istream, Dstream and Rstream are not considered in this paper) Nonblocking Query Operators We can now formalize the notion of sequences as a bridge between database relations and streams Sequences consist ... formal analysis of how query languages and also data models are impacted by these changes, to propose practical solutions for the resulting problems We studied how traditional models, where data ... these two constructs Practical datastreams languages should support SQL, and additional constructs needed for data streams, such as logical and physical windows [4] (For instance, ESL also supports...
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ODP.NET Developer''''s Guide: Oracle Database 10g Development with Visual Studio 2005 and the Oracle Data Provider for .NET pot

ODP.NET Developer''''s Guide: Oracle Database 10g Development with Visual Studio 2005 and the Oracle Data Provider for .NET pot

... Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com ODP.NET Developer's Guide Oracle Database 10g Development with Visual Studio 2005 and the Oracle Data Provider for NET A practical ... Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com ODP.NET Developer's Guide Oracle Database 10g Development with Visual Studio 2005 and the Oracle Data Provider for NET Copyright ... integrates the Visual Studio environment with Oracle database You will be able to manipulate Oracle databases from within Visual Studio and without leaving Visual Studio [ 11 ] Simpo PDF Merge and Split...
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báo cáo khoa học:

báo cáo khoa học: " Lutein is needed for efficient chlorophyll triplet quenching in the major LHCII antenna complex of higher plants and effective photoprotection in vivo under strong light" pps

... affected in their Chl a/b ratio Photoprotection and carotenoid triplet formation in lutein vs violaxanthin-binding Lhc proteins Strong illumination of chlorophyll- proteins in the presence of oxygen ... than for violaxanthin, and the kinetics for triplet formation were faster for lutein This proves that lutein bound to LHCII proteins is more efficient as a 3Chl* quencher than violaxanthin The binding ... violaxanthin is less efficient than lutein in quenching 3Chl*, thus resulting in increased 1O2* formation and photobleaching The first excited triplet state of carotenoids lies below the energy level of...
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Báo cáo y học:

Báo cáo y học: "Network security and data integrity in academia: an assessment and a proposal for large-scale archiving" potx

... student at University of California, Berkeley had all her files and many emails erased by this hacker In another incident at UC Berkeley a bioinformatics lab was successfully hacked Key data on ... journals Digital data are more ephemeral and, because modern technology allows information to be generated at a much faster rate, the scale of digital information is vastly greater than physically ... central hosting; and provide central authentication, enabling distributed collaborations Finally, and most importantly, one can never fully prevent successful attacks and it must be assumed that in...
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A reliability data base for performance and predictive assessment of electric power systems

A reliability data base for performance and predictive assessment of electric power systems

... Statistics, Canadian Electrical Asso~iation, Instruction Manual for Reporting Generation Equipment Outage Data, Canadian Electrical Association, Montreal Billinton R and Allan R N 1984 Reliability ... Billinton, R., Debnath, K., Oprisan, M and Clark, I M., April 1990, "The Canadian National Data Base for Reliability Evaluation and Assessment" , Proceedings 11th Advances in Reliability Technology ... curtailment and the average duration of such a curtailment This information can be obtained from a frequency and duration analysis The additional parameters required for such an analysis are...
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