data collection and analysis

... B Workgroup We have established an international workgroup for the collection and analysis of RT and protease sequences and data from persons infected with non-B HIV-1 subtypes Currently, the ... drugs and certain combinations, there are insufficient data, even in subtype B HIV-1 Worldwide collaboration, using common data collection instruments and uniform protocols, is essential to the analysis ... subtypes.[15] The collected data are intended to be publicly available, and can serve as a reference dataset and as a watch list for resistance surveillance programs and epidemiologic studies (see...

Ngày tải lên: 20/06/2014, 08:20

... ADMINISTRATIVE DATA Matching and Cleaning Administrative Data Robert M Goerge and Bong Joo Lee ix 197 x CONTENTS Access and Confidentiality Issues with Administrative Data Henry E Brady, Susan A Grand, ... matching and cleaning of administrative data; (2) issues of access and confidentiality; (3) problems in measuring employment and income with administrative data compared to survey data; and (4) ... reform evaluation and hence assume special importance in data collection They find that there often are differences in administrative and survey data reports of employment and income and that the...

Ngày tải lên: 06/03/2014, 15:20

Ngày tải lên: 29/06/2014, 11:20

... Summary of variables, data collection methods and instruments, types and timings of data collected Variables Instrument Data collected Level and data source Time period Structural and functional characteristics ... Helsinki, Finland Authors’ contributions The study was conceived by MPE, JJF, MJ, NS, JMG, ME, GH, and MH The study was run by SH and MPE with data handling and analyses by SH, ES, JP, and NS, and ongoing ... and standard deviations of scores for team function and organisational behaviour measures, for general and diabetes specific measures and illness sickness absence and intention to leave GPs and...

Ngày tải lên: 10/08/2014, 10:23

... pathogens and hosts, we have now developed a web-based PHI data integration and analysis system (PHIDIAS) that permits integration and analysis of genome sequences, curated literature data for ... relational databases, XML databases not efficiently support query functions and scalability These deficiencies prompted us to design a web-based relational database system to store and query PIML data ... that search and analyze annotated genome sequences, curated PHI data, and PHIrelated gene expression data (Figure 1a) Pathogen genomes are displayed and analyzed by PGBrowser, Pacodom, and BLAST...

Ngày tải lên: 14/08/2014, 08:20

... number of applications and GIS databases provide and acquire 3D building models towards and from users, such as Google Earth and ArcGIS These 3D models are increasingly necessary and beneficial for ... the current state of work related to the spatial sensor data processing and analysis, and the problems and issues that we have modeled and solved in this area The remainder of this thesis is ... noisy and sparsely sampled locations [117] They collected a wardriving database for low accuracy WiFi localization data, and discuss the accuracy-energy tradeoff between using WiFi location data and...

Ngày tải lên: 22/09/2015, 15:18

... the analysis of data collected by their applications and services to improve their products With the rise of large online services, massive amounts of data are being produced Known as Big Data, ... Companies depend on the data produced by their applications and services to understand how their products can be improved By analyzing this data, they can identify important trends and properties about ... response to the problem of managing and analyzing Big Data, much work has been done in the area of stream processing Instead of storing datasets in a database and running timeconsuming queries...

Ngày tải lên: 03/10/2015, 21:58

... possible candidate itemsets Frequent Itemset Generation Brute-force approach: – Each itemset in the lattice is a candidate frequent itemset – Count the support of each candidate by scanning the database ... Used by DHP and vertical-based mining algorithms Reduce the number of comparisons (NM) – Use efficient data structures to store the candidates or transactions – No need to match every candidate ... Eliminate candidates that are infrequent, leaving only those that are frequent © Tan,Steinbach, Kumar Introduction to Data Mining 15 Reducing Number of Comparisons Candidate counting: – Scan the database...

Ngày tải lên: 15/03/2014, 09:20

... minimized © Tan,Steinbach, Kumar Introduction to Data Mining Applications of Cluster Analysis Understanding – Group related documents for browsing, group genes and proteins that have similar functionality, ... Summarization – Reduce the size of large data sets Clustering precipitation in Australia © Tan,Steinbach, Kumar Introduction to Data Mining What is not Cluster Analysis? Supervised classification ... Introduction to Data Mining Types of Clusterings A clustering is a set of clusters Important distinction between hierarchical and partitional sets of clusters Partitional Clustering – A division data objects...

Ngày tải lên: 15/03/2014, 09:20

... Introduction to Data Mining CURE Shrinking representative points toward the center helps avoid problems with noise and outliers CURE is better able to handle clusters of arbitrary shapes and sizes ... Introduction to Data Mining 34 SNN Clustering Can Handle Other Difficult Situations © Tan,Steinbach, Kumar Introduction to Data Mining 35 Finding Clusters of Time Series In Spatio-Temporal Data SNN ... – Chameleon and Hypergraph-based Clustering © Tan,Steinbach, Kumar Introduction to Data Mining 10 Sparsification in the Clustering Process © Tan,Steinbach, Kumar Introduction to Data Mining 11...

Ngày tải lên: 15/03/2014, 09:20

... I Preliminaries 1 Data Structures and Algorithms 1.1 A Philosophy of Data Structures 1.1.1 The Need for Data Structures 1.1.2 Costs and Benefits 1.2 Abstract Data Types and Data Structures 1.3 ... relationship between data items, abstract data types, and data structures The ADT defines the logical form of the data type The data structure implements the physical form of the data type given data structure ... inserting a data item into the data structure, deleting a data item from the data structure, and finding a specified data item Quantify the resource constraints for each operation Select the data structure...

Ngày tải lên: 23/03/2014, 22:20

Ngày tải lên: 17/04/2014, 09:16

... I Preliminaries 1 Data Structures and Algorithms 1.1 A Philosophy of Data Structures 1.1.1 The Need for Data Structures 1.1.2 Costs and Benefits 1.2 Abstract Data Types and Data Structures 1.3 ... relationship between data items, abstract data types, and data structures The ADT defines the logical form of the data type The data structure implements the physical form of the data type given data structure ... inserting a data item into the data structure, deleting a data item from the data structure, and finding a specified data item Quantify the resource constraints for each operation Select the data structure...

Ngày tải lên: 22/04/2014, 13:03

... obtained from the WHO/UNAIDS database [9] The data from the various data sources were merged into one file at the country level for analysis The variables in the data set included the following ... purpose were Botswana, Swaziland, Thailand, and Zimbabwe These four countries were selected on the basis of 1) high levels of HIV/AIDS prevalence rates and 2) the presence of data for the potential ... the merged data set OLC performed the data mining EAM performed the multiple regression analysis The generation of the idea and writing of the paper was a three way effort in drafting and revising...

Ngày tải lên: 18/06/2014, 17:20

... intensive and standardized data collection approaches within a larger clinic observational database presented us with a unique opportunity to assess the quality of data collection in the clinic database ... use and interpretation of data derived from routine HIV observational databases for research and audit, and they highlight the need for ongoing regular validation of key data items in these databases ... research cohort and clinic databases was 24.1 (20.5-28.2) and 13.2 (10.8-16.2), respectively, and 10.4 (9.1-11.9) for the 1233 patients in the clinic database This represents a 1.8- and 2.3-fold...

Ngày tải lên: 20/06/2014, 08:20

... tree height = axis persists to top of tree Data collection Indexing information on the field data sheets Data sheets should be prepared with layout and treatment information included: replicate ... on the data sheet should be used for each experimental unit (usually a tree) Measurements such as height and diameter are put in columns across the data sheet after the indexing columns Data sheet ... 1 * * 1 4 * * 1 1.1 Check the data !!!!!!!!!!!!!!! There will always be mistakes in the data! Mistakes arise at different stages of the operation Read back the data from the computer screen,...

Ngày tải lên: 22/06/2014, 12:20

... time (linear and quadratic regression on time), and the interactions between bacteria and these time effects A linear random regression model was considered (using a random cow effect and an interaction ... infected gland, including S100 calcium binding proteins A8, A9 and A12, colony stimulating factor and several chemoattractants for neutrophils, e.g interleukin and chemokine (C-X-C motif) ligand and ... provided the data were RIBFA and the Roslin Institute Detection of differentially expressed genes 635 In this paper three main steps of microarray data analysis will be discussed: data quality...

Ngày tải lên: 14/08/2014, 13:22

... LOESS normalised data, and (C) LOESS followed by scale normalised data column and found not needed) and INRA_J (correction by block) applied any further spatial normalisation SLN1 and SLN2 applied ... as false negatives in the 12 analysis methods Table contains the gene id (gene), mean and standard deviation of the unnormalised log ratio (M and SD), mean and standard deviation of the LOESS ... as false positives in the 12 analysis methods The table contains the gene id (gene), mean and standard deviation of the unnormalised log ratio (M and SD), mean and standard deviation of the LOESS...

Ngày tải lên: 14/08/2014, 13:22

... within an OME database (b) The DataManager, DatasetBrowser and 5DViewer The DataManager shows the relationships between Projects, Datasets and Images within an OME database The DatasetBrowser ... not only to store and maintain data and metadata, but also to define permitted workflows and potential data relationships Goldberg et al R47.11 comment returned to the database, and are linked to ... image data and all information regarding the image acquisition and processing, and any results generated during analysis In this way, all aspects of the data acquisition, processing, and analysis...

Ngày tải lên: 14/08/2014, 14:21

... and their implementations Chapter provides a detailed analysis of the Microsphere Projection algorithm In Chapter we present an analysis and comparison of various 1D, 2D and 3D case studies and ... to address non-uniform data, this paper will restrict its discussion to the set of algorithms which are designed to handle non-uniform data This will exclude both Bilinear and Trilinear interpolations ... trend of the data, and is not guaranteed to pass through any of the data points exactly See Figure 1.1 However, if the primary loss of information (the primary difficulty) with the data is not...

Ngày tải lên: 30/10/2014, 20:12