Random Articles (Page 241)

Have a deep view into what people are curious about.

๐Ÿ”— Google was founded 25 years ago Today

๐Ÿ”— California ๐Ÿ”— Companies ๐Ÿ”— Technology ๐Ÿ”— California/San Francisco Bay Area ๐Ÿ”— Internet ๐Ÿ”— History ๐Ÿ”— Computing ๐Ÿ”— Internet culture ๐Ÿ”— Websites ๐Ÿ”— Websites/Computing ๐Ÿ”— Stanford University ๐Ÿ”— Google

Google was officially launched in 1998 by Larry Page and Sergey Brin to market Google Search, which has become the most used web-based search engine. Larry Page and Sergey Brin, students at Stanford University in California, developed a search algorithm at first known as "BackRub" in 1996, with the help of Scott Hassan and Alan Steremberg. The search engine soon proved successful and the expanding company moved several times, finally settling at Mountain View in 2003. This marked a phase of rapid growth, with the company making its initial public offering in 2004 and quickly becoming one of the world's largest media companies. The company launched Google News in 2002, Gmail in 2004, Google Maps in 2005, Google Chrome in 2008, and the social network known as Google+ in 2011 (which was shut down in April 2019), in addition to many other products. In 2015, Google became the main subsidiary of the holding company Alphabet Inc.

The search engine went through many updates in attempts to eradicate search engine optimization.

Google has engaged in partnerships with NASA, AOL, Sun Microsystems, News Corporation, Sky UK, and others. The company set up a charitable offshoot, Google.org, in 2005.

The name Google is a misspelling of Googol, the number 1 followed by 100 zeros, which was picked to signify that the search engine was intended to provide large quantities of information.

Discussed on

๐Ÿ”— Mรผnchhausen Trilemma

๐Ÿ”— Philosophy ๐Ÿ”— Philosophy/Logic ๐Ÿ”— Philosophy/Epistemology

In epistemology, the Mรผnchhausen trilemma is a thought experiment used to demonstrate the impossibility of proving any truth, even in the fields of logic and mathematics. If it is asked how any given proposition is known to be true, proof may be provided. Yet that same question can be asked of the proof, and any subsequent proof. The Mรผnchhausen trilemma is that there are only three options when providing further proof in response to further questioning:

  • The circular argument, in which the proof of some proposition is supported only by that proposition
  • The regressive argument, in which each proof requires a further proof, ad infinitum
  • The axiomatic argument, which rests on accepted precepts which are merely asserted rather than defended

The trilemma, then, is the decision among the three equally unsatisfying options.

The name Mรผnchhausen-Trilemma was coined by the German philosopher Hans Albert in 1968 in reference to a trilemma of "dogmatism versus infinite regress versus psychologism" used by Karl Popper. It is a reference to the problem of "bootstrapping", based on the story of Baron Munchausen (in German, "Mรผnchhausen") pulling himself and the horse on which he was sitting out of a mire by his own hair.

It is also known as Agrippa's trilemma or the Agrippan trilemma after a similar argument reported by Sextus Empiricus, which was attributed to Agrippa the Skeptic by Diogenes Laรซrtius, as well as Fries's trilemma after German philosopher Jakob Friedrich Fries. Sextus' argument, however, consists of five (not three) "modes". Popper in his original 1935 publication mentions neither Sextus nor Agrippa, but attributes his trilemma to Fries.

In contemporary epistemology, advocates of coherentism are supposed to accept the "circular" horn of the trilemma; foundationalists rely on the axiomatic argument. The view that accepts infinite regress is called infinitism.

Discussed on

๐Ÿ”— Teuvo Kohonen Has Died

๐Ÿ”— Biography

Teuvo Kalevi Kohonen (11 July 1934 โ€“ 15 December 2021) was a prominent Finnish academic (Dr. Eng.) and researcher. He was professor emeritus of the Academy of Finland.

Prof. Kohonen made many contributions to the field of artificial neural networks, including the Learning Vector Quantization algorithm, fundamental theories of distributed associative memory and optimal associative mappings, the learning subspace method and novel algorithms for symbol processing like redundant hash addressing. He has published several books and over 300 peer-reviewed papers.

Kohonenโ€™s most famous contribution is the Self-Organizing Map (also known as the Kohonen map or Kohonen artificial neural networks, although Kohonen himself prefers SOM). Due to the popularity of the SOM algorithm in many research and in practical applications, Kohonen is often considered to be the most cited Finnish scientist. The current version of the SOM bibliography contains close to 8000 entries.

During most of his career, Prof. Kohonen conducted research at Helsinki University of Technology (TKK). The Neural Networks Research Centre of TKK, a center of excellence appointed by Academy of Finland was founded to conduct research related to Teuvo Kohonen's innovations. After Kohonen's retirement, the center was led by Prof. Erkki Oja and later renamed to Adaptive Informatics Research Centre with widened foci of research.

Teuvo Kohonen was elected the First Vice President of the International Association for Pattern Recognition from 1982 to 1984, and acted as the first president of the European Neural Network Society from 1991 to 1992.

For his scientific achievements, Prof. Kohonen has received a number of prizes including the following:

  • IEEE Neural Networks Council Pioneer Award, 1991
  • Technical Achievement Award of the IEEE Signal Processing Society, 1995
  • IEEE Frank Rosenblatt Award, 2008

Discussed on

๐Ÿ”— GNS Theory

๐Ÿ”— Role-playing games

GNS theory is an informal field of study developed by Ron Edwards which attempts to create a unified theory of how role-playing games work. Focused on player behavior, in GNS theory participants in role-playing games organize their interactions around three categories of engagement: Gamism, Narrativism and Simulation.

The theory focuses on player interaction rather than statistics, encompassing game design beyond role-playing games. Analysis centers on how player behavior fits the above parameters of engagement and how these preferences shape the content and direction of a game. GNS theory is used by game designers to dissect the elements which attract players to certain types of games.

Discussed on

๐Ÿ”— Hydraulic Telegraph

A hydraulic telegraph (Greek: ฯ…ฮดฯฮฑฯ…ฮปฮนฮบฯŒฯ‚ ฯ„ฮทฮปฮญฮณฯฮฑฯ†ฮฟฯ‚) is either of two different hydraulic-telegraph telecommunication systems. The earliest one was developed in 4th-century BC Greece, while the other was developed in 19th-century AD Britain. The Greek system was deployed in combination with semaphoric fires, while the latter British system was operated purely by hydraulic fluid pressure.

Although both systems employed water in their sending and receiver devices, their transmission media were completely different. The ancient Greek system transmitted its semaphoric information to the receiver visually, which limited its use to line-of-sight distances in good visibility weather conditions only. The 19th-century British system used water-filled pipes to effect changes to the water level in the receiver unit (similar to a transparent water-filled flexible tube used as a level indicator), thus limiting its range to the hydraulic pressure that could be generated at the transmitter's device.

While the Greek device was extremely limited in the codes (and hence the information) it could convey, the British device was never deployed in operation other than for very short-distance demonstrations. Although the British device could be used in any visibility within its range of operation, it could not work in sub-zero temperatures without additional infrastructure to heat the pipes. This contributed to its impracticality.

Discussed on

๐Ÿ”— Fork Bomb

๐Ÿ”— Computing ๐Ÿ”— Computing/Computer Security

In computing, a fork bomb (also called rabbit virus or wabbit) is a denial-of-service attack wherein a process continually replicates itself to deplete available system resources, slowing down or crashing the system due to resource starvation.

Discussed on

๐Ÿ”— Up to date list of departures & closures at Sun

๐Ÿ”— California ๐Ÿ”— Companies ๐Ÿ”— Technology ๐Ÿ”— California/San Francisco Bay Area ๐Ÿ”— Computing ๐Ÿ”— Computing/Computer hardware ๐Ÿ”— Computing/Software ๐Ÿ”— Electronics

The acquisition of Sun Microsystems by Oracle Corporation was completed on January 27, 2010. Significantly, Oracle, previously only a software vendor, now owned both hardware and software product lines from Sun (e.g. SPARC Enterprise and Java, respectively).

A major issue of the purchase was that Sun was a major competitor to Oracle, raising many concerns among antitrust regulators, open source advocates, customers, and employees. The EU Commission delayed the acquisition for several months over concerns of Oracle's plans for MySQL, Sun's competitor to the Oracle Database. The commission finally approved the takeover, apparently pressured by the United States to do so, according to a WikiLeaks cable released in September 2011.

Discussed on

๐Ÿ”— Shrinkflation

๐Ÿ”— Economics ๐Ÿ”— United Kingdom ๐Ÿ”— Retailing

In economics, shrinkflation is the process of items shrinking in size or quantity, or even sometimes reformulating or reducing quality while their prices remain the same or increase. The word is a portmanteau of the words shrink and inflation. First usage of the term has been attributed to both Pippa Malmgren and Brian Domitrovic.

Discussed on

๐Ÿ”— 2018 Hawaii false missile alert

๐Ÿ”— Disaster management ๐Ÿ”— Hawaii

On the morning of Saturday, January 13, 2018, a ballistic missile alert was accidentally issued via the Emergency Alert System and Wireless Emergency Alert System over television, radio, and cellphones in the U.S. state of Hawaii. The alert stated that there was an incoming ballistic missile threat to Hawaii, advised residents to seek shelter, and concluded: "This is not a drill". The message was sent at 8:07ย a.m. local time. Civil defense outdoor warning sirens were not authorized by the state.

Thirty-eight minutes and 13 seconds later, state officials blamed a miscommunication during a drill at the Hawaii Emergency Management Agency for the first message. Governor David Ige publicly apologized for the erroneous alert. The Federal Communications Commission and the Hawaii House of Representatives launched investigations into the incident, leading to the resignation of the state's emergency management administrator.

Discussed on