Autocorrelation is the cross-correlation of a signal with itself.

Autocorrelation of the errors, which themselves are unobserved, can generally be detected because it produces autocorrelation in the observable residuals.

Autocorrelation violates the ordinary least squares ( OLS ) assumption that the error terms are uncorrelated.

* Autocorrelation is used to analyze Dynamic light scattering data, which notably enables to determine the particle size distributions of nanometer-sized particles or micelles suspended in a fluid.

Autocorrelation of the signal can be analyzed in terms of the diffusion of the particles.

* Autocorrelation in space rather than time, via the Patterson function, is used by X-ray diffractionists to help recover the " Fourier phase information " on atom positions not available through diffraction alone.

Autocorrelation is defined as the cross-correlation of the signal with itself over varying intervals of time or space.

Autocorrelation can be visualized on a data plot when a given observation is more likely to lie above a fitted line if adjacent observations also lie above the fitted regression line.

Autocorrelation is common in time series data where a data series may experience " inertia.

Autocorrelation may be the result of misspecification such as choosing the wrong functional form.

* Autocorrelation detects signal waveforms.

Autocorrelation methods need at least two pitch periods to detect pitch.

* Sieves for Low Autocorrelation Binary Sequences, IEEE Trans.

Autocorrelation analysis helps to identify the correct phase of the fitted model while the successive differencing transforms the stochastic drift component into white noise.

Responses to nonzero autocorrelation include generalized least squares and the Newey – West HAC estimator ( Heteroskedasticity and Autocorrelation Consistent ).

The company grew out of efforts by two completely inexperienced men in their late twenties, neither having a formal education applicable to, or experience in, manufacturing or selling our type of articles.

It does not appear that we will be delivered from our situation by articles on The National Purpose.

I still have the dress, and I hope to give it to the Smithsonian Institution as a memento, or, as I more fondly hope, to present it to a museum containing articles showing the daily lives of the Presidents -- if I can get it organized.

He simply found more work for him to do, and the articles and reviews continued without an evident break.

Over the months he became a political gadfly with an incessant barrage of satirical poems ridiculing Woodruff, the `` Casca '' letters belittling Woodruff, and long analytical articles vilifying Woodruff.

Later, rising ninety, he was beset by publishers for the story of his life and miracles, as he put it, but, calling himself the Needy Knife-grinder, he had spent his time writing short articles and long letters and could not get even a small popular book done.

However, at eighty-five, he had still been busy writing articles, reviewing and speaking, and I had never before known an Englishman who had visited and lectured in three quarters of the United States.

Please do put more pictures and articles in about Liberace, as he is truly one of our greatest entertainers and a really wonderful person.

We feel that The Detroit News is to be complimented upon arranging for articles on these subjects and we hope that it will continue to provide material along wholesome lines.

Each Journal contained articles of professional and clinical interest, and departments devoted to military medical news, reviews of new books, and other features of interest to officers of the medical services.

In May 1960, the Armed Forces Institute of Pathology began a series of articles on the `` Medical Museum '', and in June, the Institute started contributing a regular monthly `` Case For Diagnosis ''.

The Institute also planned to furnish a regular series of articles, beginning in the fall of 1960, on its more significant Scientific Exhibits.

The exercise I shall discuss in this -- the first of a new series of articles on muscle definition-specialization of a particular body part -- is the One Leg Lunge.

This is best demonstrated by practical washing tests in which cloth articles are repeatedly washed with the same detergent formulation.

These students, although they might read various articles in popular magazines, more often chose to report on articles found in the journals.

In addition to the noticeable difference in outside articles, there was a considerable difference in the outside books they read.

`` Disaffiliation '', by the way, is the term used by the critic and poet, Lawrence Lipton, who has written several articles on this subject, the first of which, in The Nation, quoted as Epigraph: `` We disaffiliate.

Marriage manuals and women's magazine articles began to stress the importance of the female climax.

Alexander McDonnell, governor of Red River, and James Bird, a chief factor of the Hudson's Bay Company, ordered such `` sundry articles '' to a value of Ab4,500.

These deerskins were the raw material for the manufacture of leather, and were the only articles which the tribes of this district had to exchange for European goods.

The general tone of articles appearing in such important newspapers as the Manchester Guardian and the Sunday Observer implies a kindly recognition that the Catholic Church is now at least of equal stature in England with the Protestant churches.

On successive Sundays during October, 1960, Paul Ferris ( a non-Catholic ) wrote articles in the Observer depicting clergymen of the Church of England, the Church of Rome and the Nonconformist Church.

Such a series of articles was certainly never printed in the public press of mid-Victorian England.

Mr. Sansom is English, bearded, formidably cultivated, the versatile author of numerous volumes of short stories, of novels and of pieces that are neither short stories nor travel articles but something midway between.

266, No. 5191 ), Duesberg's methods and claims were evaluated in a group of articles.

There are many distinct FFT algorithms involving a wide range of mathematics, from simple complex-number arithmetic to group theory and number theory ; this article gives an overview of the available techniques and some of their general properties, while the specific algorithms are described in subsidiary articles linked below.

Various articles group lists by title, function or topic: e. g. abdication, assassinated persons, cabinet ( government ), chancellor, ex-monarchs ( 20th century ), head of government, head of state, lieutenant governor, mayor, military commanders, minister ( and ministers by portfolio below ), order of precedence, peerage, president, prime minister, Reichstag participants ( 1792 ), Secretary of State.

However, news servers communicate with one another as peers to propagate Usenet news articles over the entire group of network servers.

The Qt for Symbian development group has many quality-controlled articles available.

* Maemo, MeeGo – Qt for Maemo, merged with Moblin to MeeGo ; many applications are already written for Maemo based on the prior Internet tablets ; the Nokia N900 also supports Qt ; the Forum Nokia Wiki has quality-controlled articles supporting Qt development ; mhe Maemo has a development group on Forum Nokia Wiki at Forum Nokia Wiki Maemo.

The KILL file was a file ( called, obviously enough, < tt > KILL </ tt >) containing regular expressions matched against the subjects of news articles in each group ; if an article matched, it would be marked as having already been read.

* Space Science & Technology, ( Persian ) an Iranian nongovernmental group who writes scientific articles about Space Science & Technology

Still, in 1933, a series of articles on the discovery of elements quoted the name masurium for element 43 .< ref group = note > In 1998 John T. Armstrong of the National Institute of Standards and Technology ran " computer simulations " of the 1925 experiments and obtained results quite close to those reported by the Noddack team.

A long treaty may further group articles under chapter headings.

Rolling Stone lavished praise on the Band in this era, giving them more attention than perhaps any other group in the magazine's history ; Greil Marcus's articles in particular contributed greatly to the Band's mystique.

It mandated that key articles, including those on limitation of seabed production and mandatory technology transfer, would not be applied, that the United States, if it became a member, would be guaranteed a seat on the Council of the International Seabed Authority, and finally, that voting would be done in groups, with each group able to block decisions on substantive matters.

* Lion Research Center website of the research group at the University of Minnesota that has conducted field research on lions and published peer-reviewed scientific articles

First owned and published by Alexander Macmillan, Nature was similar to its predecessors in its attempt to “ provide cultivated readers with an accessible forum for reading about advances in scientific knowledge .” Janet Browne has proposed that “ far more than any other science journal of the period, Nature was conceived, born, and raised to serve polemic purpose .” Many of the early editions of Nature consisted of articles written by members of a group that called itself the X Club, a group of scientists known for having liberal, progressive, and somewhat controversial scientific beliefs relative to the time period.

Borrowing from concepts available in logic ( and as illustrated in graphical notations such as conceptual graphs and topic maps ), some RDF model implementations acknowledge that it is sometimes useful to group statements according to different criteria, called situations, contexts, or scopes, as discussed in articles by RDF specification co-editor Graham Klyne.

Within the first month of the crackdown, 300 – 400 articles attacking Falun Gong appeared in each of the main state-run papers, while primetime television replayed alleged exposés on the group, with no divergent views aired in the media.

One formulation is that if journals in a field are sorted by number of articles into three groups, each with about one-third of all articles, then the number of journals in each group will be proportional to 1: n: n².

Upon his departure, Dr. GUI became the composite identity of the original group ( most notably Paul Johns ) of Developer Technology Engineers that provided in-depth technical articles to the Library.

A second group of articles consists of those pertaining to the national security.

The third group consists of articles pertaining to financial issues.

A fourth and last group of articles pertains to judicial issues.

The publication of Jean Cocteau's manifesto Le coq et l ' Arlequin resulted in Henri Collet's media articles that led to instant fame for the group, of which Tailleferre was the only female member.