Score (statistics)

In statistics, the score, score function, efficient score or informant indicates how sensitively a likelihood function depends on its parameter . Explicitly, the score for is the gradient of the log-likelihood with respect to .

The score plays an important role in several aspects of inference. For example:

The score function also plays an important role in computational statistics, as it can play a part in the computation of maximum likelihood estimates.

Definition

The score or efficient score is the gradient (the vector of partial derivatives), with respect to some parameter , of the logarithm (commonly the natural logarithm) of the likelihood function (the log-likelihood). If the observation is and its likelihood is , then the score can be found through the chain rule:

Statistics

Statistics is the study of the collection, analysis, interpretation, presentation, and organization of data. In applying statistics to, e.g., a scientific, industrial, or societal problem, it is conventional to begin with a statistical population or a statistical model process to be studied. Populations can be diverse topics such as "all persons living in a country" or "every atom composing a crystal". Statistics deals with all aspects of data including the planning of data collection in terms of the design of surveys and experiments.

When census data cannot be collected, statisticians collect data by developing specific experiment designs and survey samples. Representative sampling assures that inferences and conclusions can safely extend from the sample to the population as a whole. An experimental study involves taking measurements of the system under study, manipulating the system, and then taking additional measurements using the same procedure to determine if the manipulation has modified the values of the measurements. In contrast, an observational study does not involve experimental manipulation.

Denver Dalley

Denver Collin Dalley is an American singer-songwriter based in Omaha, Nebraska. He is best known for his collaboration with Bright Eyes frontman Conor Oberst in Desaparecidos, and has been involved in various other musical projects, including Statistics, Intramural, and Two of Cups.

Career

Desaparecidos

Dalley collaborated with childhood friend Conor Oberst as main songwriter of the politically charged indie rock band Desaparecidos. The band released Read Music/Speak Spanish on Omaha-based Saddle Creek Records before going on hiatus in 2003. They reunited in 2010, performing at the Concert for Equality in Omaha on July 31, and again on July 31, 2012 at Omaha's Maha Music Festival.

Statistics

In 2003, following the temporary caesura of Desaparecidos, Dalley formed Statistics, an electronic-tinged solo project, and signed onto the Jade Tree Records label. After releasing a self-titled extended play in 2003 and two studio albums titled Leave Your Name and Often Lie in 2004 and 2005, respectively, Dalley chose to focus on other projects, effectively putting Statistics on hiatus. However, in 2013, eight years after Often Lie, Dalley released a new studio album titled Peninsula on Afternoon Records, featuring a collaboration with Minnesota-based singer-songwriter Sean Tillman (a.k.a. Har Mar Superstar). Dalley hopes to create visuals in the form of music videos for songs in Peninsula, something that he has never done in his prior musical ventures.

Statistics (disambiguation)

Statistics is a mathematical science pertaining to the collection, analysis, interpretation, and presentation of data.

Statistic may also refer to:

Score

Score or scorer may refer to:

Business

Mathematics

Media and arts

Score (film)

Score is an American adult film film directed by Radley Metzger that was one of the first films to explore bisexual relationships. It was part of the brief porn chic fad in the early 1970s that also included Behind the Green Door, The Devil in Miss Jones and Deep Throat. The film was based on an off-Broadway stage play that ran for 23 performances at the Martinique Theatre from October 28 through November 15, 1971 and that featured Sylvester Stallone in a brief role (as telephone repairman Mike). The theatrical version of Score was written by Jerry Douglas, who later became a mainstream screenwriter. It was set in a shabby Queens tenement, while the film was set in an elegant, mythical land and sported a relatively high budget for an independent film of that era.

It has been released in both soft-core and hard-core versions. One DVD release, a soft-core version, shows a renewed copyright date of 1976 (all prints featuring the 1976 copyright are the director's approved, edited version), but the film itself was actually released in the United States in December 1973. Hardcore prints, including full-frontal male nudity and fellatio, run 91 minutes, while the ubiquitous soft-core prints were released in an 84-minute format. First Run Pictures marketed the original hardcore version on videocassette, though it was a limited release available by special mail order only. These extremely rare prints occasionally surface on eBay. The hard-core version is now available on DVD and Blu-Ray.

Score (Dream Theater album)

Score is a live album and DVD by progressive metal band Dream Theater. It was recorded on April 1, 2006 at Radio City Music Hall in New York City. The concert was the last of their 20th Anniversary Tour, labeled "A Very Special Evening with Dream Theater". The entire second half of the concert features a complete symphonic orchestra, dubbed "The Octavarium Orchestra", conducted by Jamshied Sharifi.

The album was released on August 29, 2006 and contains the entire concert setlist, including the encore. A condensed version of the concert was aired on VH1 Classic on August 25, 2006, 4 days before the release of the album and DVD. It was released on September 2, 2006 in Australia.

The title of the album comes from the word "score", meaning the number twenty, in reference to the band's 20th anniversary. It can also refer to a conductor's musical score, which is seen on the album cover.

Two of the songs recorded on this album were previously unreleased: "Another Won," a song written by the band in their earlier years, when they were known as Majesty; and "Raise The Knife", a song recorded for but omitted from Falling Into Infinity.