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Werner Vogels
Werner Hans Peter Vogels (born 3 October 1958) is the chief technology officer and vice president of Amazon in charge of driving technology innovation within the company. Vogels has broad internal and external responsibilities. Early life and education Vogels studied computer science at The Hague University of Applied Sciences finishing in June 1989. Vogels received a Ph.D. in computer science from the Vrije Universiteit Amsterdam, Netherlands, supervised by Henri Bal and Andy Tanenbaum. Career After his mandatory military service at the Royal Netherlands Navy, Vogels studied radiology, both diagnostics and therapy. He worked at the Antoni van Leeuwenhoekziekenhuis, part of the Netherlands Cancer Institute, from 1979 through 1985. In 1985 he returned to university to study computer science. After completing his studies, he pursued a career in computer science research. From 1991 through 1994, Vogels was a senior researcher at INESC in Lisboa, Portugal. He worked with P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ermelo, Netherlands
Ermelo (, Dutch Low Saxon: ''Armelo'' or ''Armel'') is a Municipalities of the Netherlands, municipality and town in the Netherlands; found within Gelderland province and the forest-rich Veluwe area. The population was . Etymology ''Ermelo'' comes from ''lo'', meaning "woods"Maurits Gysseling, M. Gysseling (1960), Toponymisch Woordenboek van België, Nederland, Luxemburg, Noord-Frankrijk en West-Duitsland (vóór 1226)', blz. 327, George Michiels N.V., Tongeren and ''irmin'' for which several explanations are given. Some of those are "great", "divine" or it refers to an old Germanic god called Irminism, Irmin. Population centres History The town has been known to exist since at least 855, when the name ''Irminlo'' first appeared in a legal document. Human presence in the area goes back further however, with many archaeological finds of the Beaker culture, Bell-Beaker culture having been made in the area. Two Roman Empire, Roman marching camps have been found on the push mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Netherlands Navy
The Royal Netherlands Navy (, ) is the Navy, maritime service branch of the Netherlands Armed Forces. It traces its history to 8 January 1488, making it the List of navies, third-oldest navy in the world. During the 17th and early 18th centuries, the Dutch States Navy was one of the most powerful navies in the world and played an active role in the Anglo-Dutch Wars, Franco-Dutch War, Nine Years' War and War of the Spanish Succession. However, by the late 18th century it had declined through neglect and was no longer a match for either the Royal Navy, British or French Navy, French navies. The Batavian Navy and navy of the Kingdom of Holland played an active role in the French Revolutionary and Napoleonic Wars, though both were repeatedly yoked to French interests. Officially formed in 1813 after the Sovereign Principality of the United Netherlands was established, the Royal Netherlands Navy played an important role in protecting the Dutch East Indies, and would play a minor role ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Software Architecture
Software architecture is the set of structures needed to reason about a software system and the discipline of creating such structures and systems. Each structure comprises software elements, relations among them, and properties of both elements and relations. The ''architecture'' of a software system is a metaphor, analogous to the architecture of a building. It functions as the blueprints for the system and the development project, which project management can later use to extrapolate the tasks necessary to be executed by the teams and people involved. Software architecture is about making fundamental structural choices that are costly to change once implemented. Software architecture choices include specific structural options from possibilities in Software design, the design of the software. There are two fundamental laws in software architecture: # Everything is a trade-off # "Why is more important than how" "Architectural Kata" is a teamwork which can be used to produce an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shopping Cart Software
Shopping cart software is a piece of electronic commerce, e-commerce software on a web server that allows visitors to have an Internet site to select items for eventual purchase.Farris, Paul W.; Neil T. Bendle; Phillip E. Pfeifer; David J. Reibstein (2010). ''Marketing Metrics: The Definitive Guide to Measuring Marketing Performance.'' Upper Saddle River, New Jersey: Pearson Education, Inc. . The Marketing Accountability Standards Board (MASB) endorses the definitions, purposes, and constructs of classes of measures that appear in ''Marketing Metrics'' as part of its ongoinCommon Language in Marketing Project The software allows online shopping customers to accumulate a list of items for purchase. At the point of sale, the software typically calculates a Summation, total for the order, including freight transport, Mail, postage as well as packaging and labeling. Associated taxes are calculated as applicable. This software also allows for a final review of the shortlisted purchas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamo (storage System)
Dynamo is a set of techniques that together can form a highly available key-value structured storage system or a distributed data store. It has properties of both databases and distributed hash tables (DHTs). It was created to help address some scalability issues that Amazon experienced during the holiday season of 2004. By 2007, it was used in Amazon Web Services, such as its Simple Storage Service (S3). Relationship to DynamoDB Amazon DynamoDB is "built on the principles of Dynamo" and is a hosted service within the AWS infrastructure. However, while Dynamo is based on leaderless replication, DynamoDB uses single-leader replication. Principles * Incremental scalability: Dynamo should be able to scale out one storage host (or “node”) at a time, with minimal impact on both operators of the system and the system itself. * Symmetry: Every node in Dynamo should have the same set of responsibilities as its peers; there should be no distinguished node or nodes that tak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multicast
In computer networking, multicast is a type of group communication where data transmission is addressed to a group of destination computers simultaneously. Multicast can be one-to-many or many-to-many distribution. Multicast differs from physical layer point-to-multipoint communication. Group communication may either be application layer multicast or network-assisted multicast, where the latter makes it possible for the source to efficiently send to the group in a single transmission. Copies are automatically created in other network elements, such as routers, switches and cellular network base stations, but only to network segments that currently contain members of the group. Network assisted multicast may be implemented at the data link layer using one-to-many addressing and switching such as Ethernet multicast addressing, Asynchronous Transfer Mode (ATM), point-to-multipoint virtual circuits (P2MP) or InfiniBand multicast. Network-assisted multicast may also be im ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kenneth Birman
Kenneth P. Birman (born November 18, 1955) is a professor in the Department of Computer Science at Cornell University. He currently holds the N. Rama Rao Chair in Computer Science. Education Birman received his B.S. from Columbia University and Ph.D. from University of California, Berkeley. Research and publications Birman's research is mainly concerned with scalability of distributed systems, security technologies, and system management tools employed in cloud computing. An ACM Fellow and IEEE Fellow, Birman was Editor in Chief of ''ACM Transactions on Computer Systems'' from 1993-1998. He is also the author of several books, most recently ''Reliable Distributed Computing: Technologies, Web Services, and Applications'', published by Springer-Verlag in May 2007. Virtual Synchrony, Derecho, and the Isis Toolkit He is best known for developing the Isis Toolkit, which introduced the virtual synchrony execution model for multicast communication. Birman founded Isis Distribut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distributed Systems
Distributed computing is a field of computer science that studies distributed systems, defined as computer systems whose inter-communicating components are located on different computer network, networked computers. The components of a distributed system communicate and coordinate their actions by message passing, passing messages to one another in order to achieve a common goal. Three significant challenges of distributed systems are: maintaining Concurrency (computer science), concurrency of components, overcoming the clock synchronization, lack of a global clock, and managing the independent failure of components. When a component of one system fails, the entire system does not fail. Examples of distributed systems vary from service-oriented architecture, SOA-based systems to microservices to massively multiplayer online games to peer-to-peer, peer-to-peer applications. Distributed systems cost significantly more than monolithic architectures, primarily due to increased needs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault-tolerant Computer System
Fault tolerance is the ability of a system to maintain proper operation despite failures or faults in one or more of its components. This capability is essential for high-availability, mission critical, mission-critical, or even life-critical systems. Fault tolerance specifically refers to a system's capability to handle faults without any degradation or downtime. In the event of an error, end-users remain unaware of any issues. Conversely, a system that experiences errors with some interruption in service or graceful degradation of performance is termed 'resilient'. In resilience, the system adapts to the error, maintaining service but acknowledging a certain impact on performance. Typically, fault tolerance describes computer systems, ensuring the overall system remains functional despite computer hardware, hardware or software issues. Non-computing examples include structures that retain their integrity despite damage from fatigue (material), fatigue, corrosion or impact. H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lisboa Region
Lisbon Region () is one of the seven NUTS II designated regions of Portugal, which coincides with the NUTS III subregion Lisbon metropolitan area, Lisbon Metropolitan Area. The region covers an area of 3001.95 km2 (the smallest region on mainland Portugal) and includes a population of 2,815,851 inhabitants according to the 2011 census (the second most populated region in Portugal after the Norte Region, Portugal, Norte region), a density of 1039 inhabitants/km2. Considered as representing the Lisbon metropolitan area, Lisbon Metropolitan Region. It is a region of significant importance in industry (light and heavy), services, and it is highly urbanized. The gross domestic product (GDP) of the region was 73.3 billion euros in 2018, accounting for 36% of Portugal's economic output. GDP per capita adjusted for purchasing power was 30,200 euros or 100% of the EU27 average in the same year. The GDP per employee was 92% of the EU average. History Prior to 2002, the area was inclu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
INESC
The Institute for Systems and Computer Engineering, Technology and Science (INESC TEC) is a research & development institute located on the campus of the Faculdade de Engenharia da Universidade do Porto, Faculty of Engineering of the University of Porto (Portugal). INESC TEC is a private non-profit association, recognised as a Public Interest Institution and has been an Associate Laboratory since 2002. The purpose of INESC TEC is to act as an interface between the academic world, the world of industry and services and the public administration in Information Technologies, Telecommunications and Electronics (ITT&E). INESC TEC invests in Scientific Research and Technological Development, as well as in Advanced Training and Consulting, Technology Transfer and supports the Establishment of new Technology-based Companies. Present in 6 sites in the cities of Porto, Braga and Vila Real, INESC TEC incorporates 13 R&D Centres and one Associate Unit with complementary competences, always l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Netherlands Cancer Institute
The Netherlands Cancer Institute (NKI) in Amsterdam was founded in 1913 by, among others, the surgeon Jacob Rotgans. The NKI, together with the Antoni van Leeuwenhoekziekenhuis, is formed into the NKI-AVL, which combines a scientific research institute with a specialized clinic focused on combating the disease cancer. Since 1973 the NKI is located next to the Slotervaartziekenhuis in Amsterdam. NKI is a member of EU-LIFE, an alliance of leading life sciences research centres in Europe. Core principles of the institute are new methods for diagnostics and treatment. The primary clusters of the NKI-AVL are: Research, Surgical Oncological Disciplines, Medical Oncological Disciplines, Radiotherapy and Diagnostic Oncological Disciplines. At the start of the 1990s, the NKI, together with the VU University Amsterdam created the Research School for Oncology Amsterdam (OOA) for postdoctoral research and schooling. This research school was Accreditation, accredited by the Royal Netherlands A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
