795 research outputs found
Understanding Risk Extrapolation (REx) and when it finds Invariant Relationships
No full textGeneralizing models for new unknown datasets is a common problem in machine learning. Algorithms that perform well for test instances with the same distribution as their training dataset often perform severely on new datasets with a different distribution. This problem is caused by distributional shifts between the training of the model and applying that model to a test domain. This paper addresses whether and in what situations Risk Extrapolation (REx) can tackle this problem of Out-Of-Distribution generalization by exploiting invariant relationships. These relationships are based on features that are invariant across all domains. By learning these relationships, REx aims to learn the concept of the problem we are trying to solve. We show in what situations REx can learn these invariant relationships and when it does not. We translate the definition of an invariant relationship into a homoscedastic synthetic dataset with either covariate, confounded, anti-causal, or hybrid shift. We expose REx to experiments in sample complexity, the number of training domains, and the training domain distance. We show that REx performs better for invariant prediction in situations with larger sample sizes and training domain distance and that if these criteria are met, REx performs equivalently in all four distributional shifts. We also compare REx to Invariant- and Empirical Risk Minimization and show that; REx is less sensitive and thus robust to the shifting of the average distributional variance in the training domains; REx asymptotically out-performs the methods in the more complex distributional shifts.https://gitlab.com/hofland.jeroen/rex-distributional-shift CodeCSE3000 Research ProjectComputer Science and Engineerin
Rex J. Rowley
No full textAudio recording of the 10/06/13 UNLV Libraries Author Series event featuring Rex. J. Rowley, author of Everyday Las Vegas: Local Life in a Tourist Town. Includes remarks by Libraries Dean Patricia Iannuzzi, CGR Director Dave Schwartz, and Rowley
Memo from Rex J. Stanton, Supt., Heart Mountain Relocation Projec,t to Mr. Shoji Nagumo, January 16, 1943
No full textMemorandum of understanding from Rex Stanton to Shoji Nagumo regarding a job opening for a plumber-fireman position at Heart Mountain incarceration camp.The Japanese American Archival Collection documents the people, places, and daily life of Japanese Americans, primarily those who lived in the once thriving community of pre-war Florin in the Sacramento region, as well as the conditions in American incarceration camps during World War II. The approximately 7,000 original items include personal and official letters, photographs, diaries, arts and crafts, newsletters, textiles, camps artifacts, yearbooks and other publications
Peter B. Maling, Christchurch, New Zealand [picture] /
No full textTitle devised from compactus card.; Inscriptions: "Peter B. Maling. Photograph for reference"--On compactus card, "Print U/1633 11535"--In pencil on verso; photographers stamp.; Rex Nan Kivell Collection NK11535.; Also available online http://nla.gov.au/nla.pic-vn6093270. Dr Peter B. Maling is a New Zealand author and historian. He was a friend and correspondent of Rex Nan Kivell
Innovation : an expert's insight on the issue in Arizona
Full text linkabstract: Innovation—introducing something new—in the 21st century mostly derives from technological advances. Innovation drives the modern economy, leading to gains in productivity and prosperity. In this edition of Indicator Insight, author Tom Rex discusses innovation in Arizona in terms of human capital, financial capital, and high-technology employment.Indicator insight ; volume 3, issue 3The Arizona Indicators Panel is a partnership of Arizona State University, The Arizona Republic, Arizona Community Foundation, Valley of the Sun United Way, and the Arizona Dept. of Commerce
William Cobbett, author of the Political Register [picture]
No full textFacsimile autograph: Wm. Cobbett.; Catalogue of engraved British portraits; engraved by D. Maclise.; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.pic-an9351838; Rex Nan Kivell Collection NK10965.; U6467
George Shaw M.D., F.R.S., author of General zoology /Russell pinxt.; Holl sculpt. Back view of the British Museum / [picture].
No full textCatalogue of engraved British portraits.; Rex Nan Kivell Collection NK11089, NK1952.; U7349; U7806
Eurasian images of Singapore in the fiction of Rex Shelley
No full textIn a series of four novels, amounting to a substantial personal literary output, the author Rex Shelley has fashioned a portrait of Singapore that differs significantly from the conventional ones, both official and literary. Shelley comes from the numerically small Eurasian community, and it is the distinctive historical experience of this minority, also known colloquially as mesticos, serani, or geragok, that richly frames his fiction. Yet Shelley’s achievement is often curiously overlooked in Singaporean literary criticism.
The Singapore of Rex Shelley’s fiction is not primarily the success story of the overseas Chinese who so quickly became a large and dominant majority of the Singaporean population, though their economic achievements do form a necessary context for Shelley’s works. Nor is it a nostalgic vision of Bangsa Melayu as dreamed by generations of once rural Malays. Nor is it the ravaged evocation of Indian diaspora so eloquently chronicled by K S Maniam. Rather, Shelley’s attention is upon the very human consequences of Western colonialism in Southeast Asia, namely the products of unions, legitimate or otherwise, between European males and local females. As Shelley told Ronald Klein in a recent interview “, I wanted to put down some record of the social history of this Eurasian minority community.” (1) The result is an impressive, if structurally flawed, portrait of vivid integrity amongst Singapore’s Eurasian community over time. As personified by the characters in the four novels, Shelley’s Eurasians are not marginal, post-colonial oddities, but an engaging, multi-dimensional community who laugh, cry, work, play, dream, struggle, gossip, and intrigue, just like any other. They may not be Malay, Chinese, Indian, European, or Arab, but they are involved, patriotic participants in the shaping of Singapore nonetheles
Rex Beach at the Animated Magazine
No full textRex Beach, a published author, attended five of Hamilton Holt's animated Animated Magazines. In 1927, Rex Beach read from "Mating Call" (also a movie); in 1928, he read from "Fit, Fat, and Fifty," in 1935, from "Thar She Blows," in 1940, "Autobiography, Chapter III," and in 1941, from "Personal Exposures." The Professor of Books, Edwin Grover, is in the background
On the Border: A Book and a Movie
Full text linkMark Hainds is the author of Border Walk. Rex Jones is the director of La Frontera
- …
