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Ontotext
Ontotext is a software company with offices in Europe and USA. It is the semantic technology branch of Sirma Group. Its main domain of activity is the development of software based on the Semantic Web languages and standards, in particular RDF, OWL and SPARQL. Ontotext is best known for the Ontotext GraphDB semantic graph database engine. Another major business line is the development of enterprise knowledge management and analytics systems that involve big knowledge graphs. Those systems are developed on top of the Ontotext Platform that builds on top of GraphDB capabilities for text mining using big knowledge graphs. Together with BBC, Ontotext developed one of the early large-scale industrial semantic applications, Dynamic Semantic Publishing, starting in 2010. Ontotext content management systems deliver semantic tagging, classification, recommendation, search and discovery services. Typically they involve semantic data integration that results in a big knowledge graph, whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ontotext GraphDB
Ontotext GraphDB (previously known as BigOWLIM) is a graph database and knowledge discovery tool compliant with RDF and SPARQL and available as a high-availability cluster. Ontotext GraphDB is used in various European research projects. As of April 2021, Graph DB is ranked as the 4th most -popular RDF store and 6th most-popular Graph DBMS system. Some categorize it as a NoSQL database. In 2014 Ontotext acquired the trademark "GraphDB" from Sones. As for a typical graph DB, ontologies are an important input for the databases. The underlying idea is a semantic repository. Architecture GraphDB is used to store and manage semantic Knowledge Graph data. It is built on top of the RDF4J architecture implemented through RDF4J's Storage and Inference Layer (SAIL). The architecture is made of three main components: * The Workbench is a web-based administration tool. The user interface is based on RDF4J Workbench Web Application * The Engine consists of a query optimizer, reasoner, st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RDF4J
Eclipse RDF4J (formerly OpenRDF Sesame) is an open-source framework for storing, querying, and analysing RDF data. It was created by the Dutch software company Aduna as part of "On-To-Knowledge", a semantic web project that ran from 1999 to 2002. It contains implementations of an in-memory triplestore and an on-disk triplestore, along with two separate Servlet packages that can be used to manage and provide access to these triplestores, on a permanent server. The RDF4J Rio (RDF Input/Output) package contains a simple API for Java-based RDF parsers and writers. Parsers and writers for popular RDF serialisations are distributed along with RDF4J, and users can easily extend the list by putting their parsers and writers on the Java classpath when running their application. RDF4J supports two query languages: SPARQL and SeRQL. RDF4J's RDF database API differs from comparable solutions in that it offers a stackable interface through which functionality can be added, and the storage e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linked Data
In computing, linked data (often capitalized as Linked Data) is structured data which is interlinked with other data so it becomes more useful through semantic queries. It builds upon standard Web technologies such as HTTP, RDF and URIs, but rather than using them to serve web pages only for human readers, it extends them to share information in a way that can be read automatically by computers. Part of the vision of linked data is for the Internet to become a global database. Tim Berners-Lee, director of the World Wide Web Consortium (W3C), coined the term in a 2006 design note about the Semantic Web project. Linked data may also be open data, in which case it is usually described as Linked Open Data. Principles In his 2006 "Linked Data" note, Tim Berners-Lee outlined four principles of linked data, paraphrased along the following lines: #Uniform Resource Identifiers (URIs) should be used to name and identify individual things. #HTTP URIs should be used to allow these thing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linked Data
In computing, linked data (often capitalized as Linked Data) is structured data which is interlinked with other data so it becomes more useful through semantic queries. It builds upon standard Web technologies such as HTTP, RDF and URIs, but rather than using them to serve web pages only for human readers, it extends them to share information in a way that can be read automatically by computers. Part of the vision of linked data is for the Internet to become a global database. Tim Berners-Lee, director of the World Wide Web Consortium (W3C), coined the term in a 2006 design note about the Semantic Web project. Linked data may also be open data, in which case it is usually described as Linked Open Data. Principles In his 2006 "Linked Data" note, Tim Berners-Lee outlined four principles of linked data, paraphrased along the following lines: #Uniform Resource Identifiers (URIs) should be used to name and identify individual things. #HTTP URIs should be used to allow these thing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graph Database
A graph database (GDB) is a database that uses graph structures for semantic queries with nodes, edges, and properties to represent and store data. A key concept of the system is the ''graph'' (or ''edge'' or ''relationship''). The graph relates the data items in the store to a collection of nodes and edges, the edges representing the relationships between the nodes. The relationships allow data in the store to be linked together directly and, in many cases, retrieved with one operation. Graph databases hold the relationships between data as a priority. Querying relationships is fast because they are perpetually stored in the database. Relationships can be intuitively visualized using graph databases, making them useful for heavily inter-connected data. Graph databases are commonly referred to as a NoSQL. Graph databases are similar to 1970s network model databases in that both represent general graphs, but network-model databases operate at a lower level of abstraction and lac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Private Corporation
A privately held company (or simply a private company) is a company whose shares and related rights or obligations are not offered for public subscription or publicly negotiated in the respective listed markets, but rather the company's stock is offered, owned, traded, exchanged privately, or over-the-counter. In the case of a closed corporation, there are a relatively small number of shareholders or company members. Related terms are closely-held corporation, unquoted company, and unlisted company. Though less visible than their publicly traded counterparts, private companies have major importance in the world's economy. In 2008, the 441 largest private companies in the United States accounted for ($1.8 trillion) in revenues and employed 6.2 million people, according to ''Forbes''. In 2005, using a substantially smaller pool size (22.7%) for comparison, the 339 companies on ''Forbes'' survey of closely held U.S. businesses sold a trillion dollars' worth of goods and services (4 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panama Papers
The Panama Papers ( es, Papeles de Panamá) are 11.5 million leaked documents (or 2.6 terabytes of data) that were published beginning on April 3, 2016. The papers detail financial and attorney–client information for more than 214,488 offshore entities. The documents, some dating back to the 1970s, were created by, and taken from, former Panamanian offshore law firm and corporate service provider Mossack Fonseca. The documents contain personal financial information about wealthy individuals and public officials that had previously been kept private. The publication of these documents made it possible to establish the prosecution of Jan Marsalek, who is still a person of interest to a number of European governments due to his revealed links with Russian intelligence, and international financial fraudsters David and Josh Baazov. While offshore business entities are legal (see Offshore Magic Circle), reporters found that some of the Mossack Fonseca shell corporations we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elections In Bulgaria
Bulgaria elects on the national level a head of state—the president—and a legislature. The president is elected for a five-year term directly by the people. The National Assembly (''Narodno Sabranie'') has 240 members elected for a four-year term by proportional representation in multi-seat constituencies with a 4% threshold. Bulgaria has a multi-party system in which often no one party has a chance of gaining power alone and parties must work with each to form governments. Parliamentary elections Parliamentary elections have been held in Bulgaria since 1879. There was a period when partisan politics was banned from 1934 to 1944; in the wake of the Bulgarian coup d'état of 1934 and the sequential personal rule of Tsar Boris III. There was also period of single party system between 1945 and 1989, during the People's Republic of Bulgaria, during which only candidates sanctioned by authorities could run. This, in practice, gave the Bulgarian Communist Party and its collaborato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electoral Fraud
Electoral fraud, sometimes referred to as election manipulation, voter fraud or vote rigging, involves illegal interference with the process of an election, either by increasing the vote share of a favored candidate, depressing the vote share of rival candidates, or both. It differs from but often goes hand-in-hand with voter suppression. What exactly constitutes electoral fraud varies from country to country. Electoral legislation outlaws many kinds of election fraud, * also at but other practices violate general laws, such as those banning assault, harassment or libel. Although technically the term "electoral fraud" covers only those acts which are illegal, the term is sometimes used to describe acts which are legal, but considered morally unacceptable, outside the spirit of an election or in violation of the principles of democracy. Show elections, featuring only one candidate, are sometimes classified as electoral fraud, although they may comply with the law and are presente ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Language Processing
Natural language processing (NLP) is an interdisciplinary subfield of linguistics, computer science, and artificial intelligence concerned with the interactions between computers and human language, in particular how to program computers to process and analyze large amounts of natural language data. The goal is a computer capable of "understanding" the contents of documents, including the contextual nuances of the language within them. The technology can then accurately extract information and insights contained in the documents as well as categorize and organize the documents themselves. Challenges in natural language processing frequently involve speech recognition, natural-language understanding, and natural-language generation. History Natural language processing has its roots in the 1950s. Already in 1950, Alan Turing published an article titled "Computing Machinery and Intelligence" which proposed what is now called the Turing test as a criterion of intelligence, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Architecture For Text Engineering
General Architecture for Text Engineering or GATE is a Java suite of tools originally developed at the University of Sheffield beginning in 1995 and now used worldwide by a wide community of scientists, companies, teachers and students for many natural language processing tasks, including information extraction in many languages. As of May 28, 2011, 881 people are on the gate-users mailing list at SourceForge.net, and 111,932 downloads from SourceForge are recorded since the project moved to SourceForge in 2005. The paper "GATE: A framework and graphical development environment for robust NLP tools and applications" has received over 2000 citations since publication (according to Google Scholar). Books covering the use of GATE, in addition to the GATE User Guide, include "Building Search Applications: Lucene, LingPipe, and Gate", by Manu Konchady, and "Introduction to Linguistic Annotation and Text Analytics", by Graham Wilcock. GATE community and research has been involved in seve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OpenRefine
OpenRefine is an open-source desktop application for data cleanup and transformation to other formats, an activity commonly known as data wrangling. It is similar to spreadsheet applications, and can handle spreadsheet file formats such as CSV, but it behaves more like a database. It operates on ''rows'' of data which have cells under ''columns,'' similar to the manner in which relational database tables operate. OpenRefine projects consist of one table, whose rows can be filtered using ''facets'' that define criteria (for example, showing rows where a given column is not empty). Unlike spreadsheets, most operations in OpenRefine are done on all visible rows, for example, the transformation of all cells in all rows under one column, or the creation of a new column based on existing data. Actions performed on a dataset are stored the project and can be 'replayed' on other datasets. Formulas are not stored in cells, but are used to transform the data. Transformation is done only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
