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Metadata Discovery
In metadata, metadata discovery (also metadata harvesting) is the process of using automated tools to discover the semantics of a data element in data sets. This process usually ends with a set of mappings between the data source elements and a centralized metadata registry. Metadata discovery is also known as metadata scanning. Data source formats for metadata discovery Data sets may be in a variety of different forms including: # Relational databases # NoSQL databases # Spreadsheets # XML files # Web services # Software source code such as Fortran, Jovial, COBOL, Assembler, RPG, PL/1, EasyTrieve, Java, C# or C++ classes, and thousands of other software languages # Unstructured text documents such as Microsoft Word or PDF files A taxonomy of metadata matching algorithms There are distinct categories of automated metadata discovery: Lexical matching # Exact match - where data element linkages are made based on the exact name of a column in a database, the name of an XML element o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metadata
Metadata is "data that provides information about other data", but not the content of the data, such as the text of a message or the image itself. There are many distinct types of metadata, including: * Descriptive metadata – the descriptive information about a resource. It is used for discovery and identification. It includes elements such as title, abstract, author, and keywords. * Structural metadata – metadata about containers of data and indicates how compound objects are put together, for example, how pages are ordered to form chapters. It describes the types, versions, relationships, and other characteristics of digital materials. * Administrative metadata – the information to help manage a resource, like resource type, permissions, and when and how it was created. * Reference metadata – the information about the contents and quality of statistical data. * Statistical metadata – also called process data, may describe processes that collect, process, or produce st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Data Warehouse
In computing, a data warehouse (DW or DWH), also known as an enterprise data warehouse (EDW), is a system used for Business reporting, reporting and data analysis and is considered a core component of business intelligence. DWs are central Repository (version control), repositories of integrated data from one or more disparate sources. They store current and historical data in one single place that are used for creating analytical reports for workers throughout the enterprise. The data stored in the warehouse is uploaded from the operational systems (such as marketing or sales). The data may pass through an operational data store and may require data cleansing for additional operations to ensure data quality before it is used in the DW for reporting. Extract, transform, load (ETL) and extract, load, transform (ELT) are the two main approaches used to build a data warehouse system. ETL-based data warehousing The typical extract, transform, load (ETL)-based data warehouse uses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Data Mapping
In computing and data management, data mapping is the process of creating data element mappings between two distinct data models. Data mapping is used as a first step for a wide variety of data integration tasks, including: * Data transformation or data mediation between a data source and a destination * Identification of data relationships as part of data lineage analysis * Discovery of hidden sensitive data such as the last four digits of a social security number hidden in another user id as part of a data masking or de-identification project * Consolidation of multiple databases into a single database and identifying redundant columns of data for consolidation or elimination For example, a company that would like to transmit and receive purchases and invoices with other companies might use data mapping to create data maps from a company's data to standardized ANSI ASC X12 messages for items such as purchase orders and invoices. Standards X12 standards are generic Electro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metadata
Metadata is "data that provides information about other data", but not the content of the data, such as the text of a message or the image itself. There are many distinct types of metadata, including: * Descriptive metadata – the descriptive information about a resource. It is used for discovery and identification. It includes elements such as title, abstract, author, and keywords. * Structural metadata – metadata about containers of data and indicates how compound objects are put together, for example, how pages are ordered to form chapters. It describes the types, versions, relationships, and other characteristics of digital materials. * Administrative metadata – the information to help manage a resource, like resource type, permissions, and when and how it was created. * Reference metadata – the information about the contents and quality of statistical data. * Statistical metadata – also called process data, may describe processes that collect, process, or produce st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oak Ridge National Laboratory DAAC
The ORNL DAAC (Oak Ridge National Laboratory Distributed Active Archive Center) for Biogeochemical Dynamics is a National Aeronautics and Space Administration (NASA) Earth Observing System Data and Information System (EOSDIS) data center managed by the Earth Science Data and Information System (ESDIS) Project. Established in 1993, the ORNL DAAC is operated by Oak Ridge National Laboratory in Oak Ridge, Tennessee, under an interagency agreement between NASA and the Department of Energy (DOE). Within the ORNL, the ORNL DAAC is part of the Remote Sensing and Environmental Informatics Group of the Environmental Sciences Division (ESD) and a contributor to the Climate Change Science Institute (CCSI). EOSDIS data centers process, archive, and distribute data collected during Earth Observing System (EOS) satellite and field missions. They also develop tools for accessing data, provide user services, promote data usage, and collect metrics on the use of data and user satisfaction. The O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iowa State University
Iowa State University of Science and Technology (Iowa State University, Iowa State, or ISU) is a public land-grant research university in Ames, Iowa. Founded in 1858 as the Iowa Agricultural College and Model Farm, Iowa State became one of the nation's first designated land-grant institution when the Iowa Legislature accepted the provisions of the 1862 Morrill Act on September 11, 1862, making Iowa the first state in the nation to do so. On July 4, 1959, the college was officially renamed Iowa State University of Science and Technology. Iowa State is classified among "R1: Doctoral Universities – Very high research activity". The university is home to the Ames Laboratory, one of ten national U.S. Department of Energy Office of Science research laboratories, the Biorenewables Research Laboratory, the Plant Sciences Institute, and various other research institutes. Iowa State is the second-largest university in the State of Iowa by undergraduate enrollment. The university's ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unicorn Systems
The unicorn is a legendary creature that has been described since Classical antiquity, antiquity as a beast with a single large, pointed, spiraling horn (anatomy), horn projecting from its forehead. In European literature and art, the unicorn has for the last thousand years or so been depicted as a white horse-like or goat-like animal with a long straight horn with spiralling grooves, cloven hooves, and sometimes a goat's beard. In the Middle Ages and Renaissance, it was commonly described as an extremely wild forest, woodland creature, a symbol of purity and grace, which could be captured only by a virgin. In encyclopedias, its horn was described as having the power to render poisoned water potable and to heal sickness. In medieval and Renaissance times, the tusk of the narwhal was sometimes sold as a unicorn horn. A bovine type of unicorn is thought by some scholars to have been depicted in Indus seal, seals of the Bronze Age Indus Valley Civilisation, Indus Valley civiliza ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvester
Harvester may refer to: Agriculture and forestry * Combine harvester, a machine commonly used to harvest grain crops * Forage harvester, a machine used to harvest forage * Harvester (forestry), a type of heavy vehicle employed in cut-to-length logging of trees * International Harvester, a former agricultural machinery company Information technology * Harvester (web), a tool to download websites * Harvester (HCI), an open-source hyper-converged infrastructure started in 2020 by SUSE * Bioinformatic Harvester, a bioinformatic meta search engine Music * Harvester (band) or Träd, Gräs, och Stenar, a Swedish progressive band * Harvester (American band), an American indie rock band * The Harvesters (band), a Swedish alternative country band Places * Burr Ridge, Illinois or Harvester * Harvester, Missouri, an unincorporated community in St. Charles County Zoology * ''Feniseca tarquinius'' or harvesters, a species of butterflies * ''Miletinae'' or harvesters, a subfamily of butter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratio (company)
Stration (also known as Stratio and Warezov) is a family of computer worms that can affect computers running Microsoft Windows, disabling security features and propagating itself to other computers via e-mail attachments. This family of worms is unusual in that new variants are being produced at an unprecedented rate, estimated to be up to one every 30 minutes at its peak, and downloaded from remote servers by infected machines to speed propagation. This makes detection and removal a particular challenge for anti-virus software vendors, because new signature files for each variant need to be issued to allow their software to detect them. Details The first variant of the Stration family was reported in late September 2006. It was quickly discovered that the worm program, as well as propagating itself by sending out copies via e-mail, was downloading new variants from one of a number of remote servers. These variants were generated by a program on those servers under control of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
