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Topic Review
Aphelion
The Aphelion Imaging Software Suite is a software suite that includes three base products - Aphelion Lab, Aphelion Dev, and Aphelion SDK for addressing image processing and image analysis applications. The suite also includes a set of extension programs to implement specific vertical applications that benefit from imaging techniques. The Aphelion software products can be used to prototype and deploy applications, or can be integrated, in whole or in part, into a user's system as processing and visualization libraries whose components are available as both DLLs or .Net components.
  • 522
  • 27 Oct 2022
Topic Review
Seifert–Van Kampen Theorem
In mathematics, the Seifert–van Kampen theorem of algebraic topology (named after Herbert Seifert and Egbert van Kampen), sometimes just called van Kampen's theorem, expresses the structure of the fundamental group of a topological space [math]\displaystyle{ X }[/math] in terms of the fundamental groups of two open, path-connected subspaces that cover [math]\displaystyle{ X }[/math]. It can therefore be used for computations of the fundamental group of spaces that are constructed out of simpler ones.
  • 595
  • 27 Oct 2022
Topic Review
Converse (Logic)
In logic and mathematics, the converse of a categorical or implicational statement is the result of reversing its two constituent statements. For the implication P → Q, the converse is Q → P. For the categorical proposition All S are P, the converse is All P are S. Either way, the truth of the converse is generally independent from that of the original statement.
  • 1.0K
  • 27 Oct 2022
Topic Review
Information and Communications Technology
Information and communications technology (ICT) is an extensional term for information technology (IT) that stresses the role of unified communications and the integration of telecommunications (telephone lines and wireless signals) and computers, as well as necessary enterprise software, middleware, storage and audiovisual, that enable users to access, store, transmit, understand and manipulate information. ICT is also used to refer to the convergence of audiovisuals and telephone networks with computer networks through a single cabling or link system. There are large economic incentives to merge the telephone networks with the computer network system using a single unified system of cabling, signal distribution, and management. ICT is an umbrella term that includes any communication device, encompassing radio, televiision, cell phones, computer and network hardware, satellite systems and so on, as well as the various services and appliances with them such as video conferencing and distance learning. ICT also includes analog technology, such as paper communication, and any mode that transmits communication. ICT is a broad subject and the concepts are evolving. It covers any product that will store, retrieve, manipulate, transmit, or receive information electronically in a digital form (e.g., personal computers including smartphones, digital television, email, or robots). Skills Framework for the Information Age is one of many models for describing and managing competencies for ICT professionals for the 21st century.
  • 6.7K
  • 27 Oct 2022
Topic Review
Well-Known Text
Well-known text (WKT) is a text markup language for representing vector geometry objects on a map, spatial reference systems of spatial objects and transformations between spatial reference systems. A binary equivalent, known as well-known binary (WKB), is used to transfer and store the same information on databases. The formats were originally defined by the Open Geospatial Consortium (OGC) and described in their Simple Feature Access and Coordinate Transformation Service specifications. The current standard definition is in the ISO/IEC 13249-3:2016 standard, "Information technology – Database languages – SQL multimedia and application packages – Part 3: Spatial" (SQL/MM) and ISO 19162:2015, "Geographic information – Well-known text representation of coordinate reference systems".
  • 2.1K
  • 27 Oct 2022
Topic Review
Regional Accreditation
Regional accreditation is the educational accreditation of schools, colleges, and universities in the United States by one of seven regional accrediting agencies. Accreditation is a voluntary process by which colleges demonstrate to each other, and sometimes to employers and licensing agencies, that their credits and degrees meet minimum standards. It is the self-regulation of the higher education industry. Each regional accreditor oversees the vast majority of public and private educational institutions, both not-for-profit and for-profit, in its region. Their primary function is accreditation of post-secondary institutions, though there is a limited amount of accreditation of primary and secondary schools. Regional accreditation is older than national accreditation and, with a few exceptions, more rigorous than national accreditation. Additionally, most non-profit institutions are regionally accredited while most for-profit colleges and universities are nationally accredited.
  • 514
  • 27 Oct 2022
Topic Review
Link Grammar
Link grammar (LG) is a theory of syntax by Davy Temperley and Daniel Sleator which builds relations between pairs of words, rather than constructing constituents in a phrase structure hierarchy. Link grammar is similar to dependency grammar, but dependency grammar includes a head-dependent relationship, whereas Link Grammar makes the head-dependent relationship optional (links need not indicate direction). Colored Multiplanar Link Grammar (CMLG) is an extension of LG allowing crossing relations between pairs of words. The relationship between words is indicated with link types, thus making the Link grammar closely related to certain categorial grammars. For example, in a subject–verb–object language like English, the verb would look left to form a subject link, and right to form an object link. Nouns would look right to complete the subject link, or left to complete the object link. In a subject–object–verb language like Persian, the verb would look left to form an object link, and a more distant left to form a subject link. Nouns would look to the right for both subject and object links.
  • 817
  • 27 Oct 2022
Topic Review
FreeNAS
FreeNAS is a free and open-source network-attached storage (NAS) operating system based on FreeBSD and the OpenZFS file system. It is licensed under the terms of the BSD License and runs on commodity x86-64 hardware. FreeNAS supports Windows, macOS and Unix clients and various virtualization hosts such as XenServer and VMware using the SMB, AFP, NFS, iSCSI, SSH, rsync and FTP/TFTP protocols. Advanced FreeNAS features include full-disk encryption and a plug-in architecture for third-party software.
  • 1.5K
  • 27 Oct 2022
Topic Review
Fedora (Operating System)
Fedora is a Linux distribution developed by the community-supported Fedora Project which is sponsored primarily by Red Hat, a subsidiary of IBM, with additional support from other companies. Fedora contains software distributed under various free and open-source licenses and aims to be on the leading edge of free technologies. Fedora is the upstream source of the commercial Red Hat Enterprise Linux distribution and for CentOS. Fedora is a fork of Red Hat Linux since RHL was discontinued in 2003. Since the release of Fedora 30, five different editions are currently available: Workstation, focused on the personal computer, Server for servers, CoreOS, focused on cloud computing, Silverblue, focused on an immutable desktop specialized to container-based workflows and IoT, focused on IoT devices. (As of February 2016), Fedora has an estimated 1.2 million users, including Linus Torvalds ((As of May 2020)), creator of the Linux kernel.
  • 4.1K
  • 27 Oct 2022
Topic Review
XBRL GL
The XBRL Global Ledger Taxonomy Framework (XBRL GL) is a holistic and generic XML and XBRL-based representation of the detailed data that can be found in accounting and operational systems, and is meant to be the bridge from transactional standards to reporting standards, integrating the Business Reporting Supply Chain. XBRL GL is developed by the XBRL GL Working Group of XBRL International. XBRL GL can be used by Computer programs for information interchange of accounting General ledger balances (summarized information) as well as complete accounting ledgers (payables, receivables, inventory, payroll, order entry, purchasing, banking) supporting object oriented accounting, quantity accounting and transparency support. The instance documents (XML files) can also be viewed in Web browsers using XSL or programmatically; it can also be carried in Inline XBRL. XBRL is designed to standardize the data, processes and rules of Business Reporting as a whole, although most implementations focus on financial reporting. XBRL GL can support the detail and integrate to all manners of reporting, financial, tax, sustainability, statistics and otherwise, and carry both quantitative and qualitative information.
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