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Estimation of the linear fractional stable motion

Stepan Mazur, Dmitry Otryakhin, Mark Podolskij.

Source: Bernoulli, Volume 26, Number 1, 226--252.

Abstract:
In this paper, we investigate the parametric inference for the linear fractional stable motion in high and low frequency setting. The symmetric linear fractional stable motion is a three-parameter family, which constitutes a natural non-Gaussian analogue of the scaled fractional Brownian motion. It is fully characterised by the scaling parameter $sigma>0$, the self-similarity parameter $Hin(0,1)$ and the stability index $alphain(0,2)$ of the driving stable motion. The parametric estimation of the model is inspired by the limit theory for stationary increments Lévy moving average processes that has been recently studied in ( Ann. Probab. 45 (2017) 4477–4528). More specifically, we combine (negative) power variation statistics and empirical characteristic functions to obtain consistent estimates of $(sigma,alpha,H)$. We present the law of large numbers and some fully feasible weak limit theorems.




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Needles and straw in a haystack: Robust confidence for possibly sparse sequences

Eduard Belitser, Nurzhan Nurushev.

Source: Bernoulli, Volume 26, Number 1, 191--225.

Abstract:
In the general signal$+$noise (allowing non-normal, non-independent observations) model, we construct an empirical Bayes posterior which we then use for uncertainty quantification for the unknown, possibly sparse, signal. We introduce a novel excessive bias restriction (EBR) condition, which gives rise to a new slicing of the entire space that is suitable for uncertainty quantification. Under EBR and some mild exchangeable exponential moment condition on the noise, we establish the local (oracle) optimality of the proposed confidence ball. Without EBR, we propose another confidence ball of full coverage, but its radius contains an additional $sigma n^{1/4}$-term. In passing, we also get the local optimal results for estimation , posterior contraction problems, and the problem of weak recovery of sparsity structure . Adaptive minimax results (also for the estimation and posterior contraction problems) over various sparsity classes follow from our local results.




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A new method for obtaining sharp compound Poisson approximation error estimates for sums of locally dependent random variables

Michael V. Boutsikas, Eutichia Vaggelatou

Source: Bernoulli, Volume 16, Number 2, 301--330.

Abstract:
Let X 1 , X 2 , …, X n be a sequence of independent or locally dependent random variables taking values in ℤ + . In this paper, we derive sharp bounds, via a new probabilistic method, for the total variation distance between the distribution of the sum ∑ i =1 n X i and an appropriate Poisson or compound Poisson distribution. These bounds include a factor which depends on the smoothness of the approximating Poisson or compound Poisson distribution. This “smoothness factor” is of order O( σ −2 ), according to a heuristic argument, where σ 2 denotes the variance of the approximating distribution. In this way, we offer sharp error estimates for a large range of values of the parameters. Finally, specific examples concerning appearances of rare runs in sequences of Bernoulli trials are presented by way of illustration.




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English given names : popularity, spelling variants, diminutives and abbreviations / by Carol Baxter.

Names, Personal -- England.




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Fuhlbohm family history : a collection of memorabilia of our ancestors and families in Germany, USA, and Australia / by Oscar Fuhlbohm.

Fuhlbohm (Family)




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My dear sir / Gwen Waters.

Braddock, William, 1798-1869 -- Correspondence.




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High on the hill : the people of St Philip & St James Church, Old Noarlunga / City of Onkaparinga.

St. Philip and St. James Church (Noarlunga, S.A.)




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The Barnes story / by Amy Moore ; with Ray Moore.

Moore, Amy, 1908-2005 -- Family.




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With a bottle of whisky in my hand : the family of James Grant and Isabella Masson / by Carolyn Cowgill.

Grant (Family)




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The Yangya Hicks : tales from the Hicks family of Yangya near Gladstone, South Australia, written from the 12th of May 1998 / by Joyce Coralie Hale (nee Hicks) (28.12.1923-17.12.2003).

Hicks (Family)




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High on the hill : the people of St Philip & St James Church, Old Noarlunga%cCity of Onkaparinga.

St. Philip and St. James Church (Noarlunga, S.A.)




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The Klemm family : descendants of Johann Gottfried Klemm and Anna Louise Klemm : these forebears are honoured and remembered at a reunion at Gruenberg, Moculta 11th-12th March 1995.

Klemm (Family)




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The story of Thomas & Ann Stone family : including Helping Hobart's Orphans, the King's Orphan School for Boys 1831-1836 / Alexander E.H. Stone.

King's Orphan Schools (New Town, Tas.)




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Welsh given names : popularity, spelling variants, diminutives and abbreviations / by Carol Baxter.

Names, Personal -- Welsh.




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Scottish given names : popularity, spelling variants, diminutives and abbreviations / by Carol Baxter.

Names, Personal -- Scottish.




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GEDmatch : tools for DNA & genealogy research / by Kerry Farmer.

Genetic genealogy -- Handbooks, manuals, etc.




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Descendants of John & Barbara Cheesman, 1839-1999 / Gary Cheesman.

Cheesman, John -- Family.




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Fuhlbohm family history : a collection of memorabilia of our ancestors and families in Germany, USA, and Australia / by Oscar Fuhlbohm.

Fuhlbohm (Family)




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Living through English history : stories of the Urlwin, Brittridge, Vasper, Partridge and Ellerby families / Janet McLeod.

Urlwin (Family).




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Slow tain to Auschwitz : memoirs of a life in war and peace / Peter Kraus.

Kraus, Peter -- Biography.




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From Wends we came : the story of Johann and Maria Huppatz & their descendants / compiled by Frank Huppatz and Rone McDonnell.

Huppatz (Family).




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Economists Expect Huge Future Earnings Loss for Students Missing School Due to COVID-19

Members of the future American workforce could see losses of earnings that add up to trillions of dollars, depending on how long coronavirus-related school closures persist.

The post Economists Expect Huge Future Earnings Loss for Students Missing School Due to COVID-19 appeared first on Market Brief.




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Austin-Area District Looks for Digital/Blended Learning Program; Baltimore Seeks High School Literacy Program

The Round Rock Independent School District in Texas is looking for a digital curriculum and blended learning program. Baltimore is looking for a comprehensive high school literacy program.

The post Austin-Area District Looks for Digital/Blended Learning Program; Baltimore Seeks High School Literacy Program appeared first on Market Brief.



  • Purchasing Alert
  • Curriculum / Digital Curriculum
  • Educational Technology/Ed-Tech
  • Learning Management / Student Information Systems
  • Procurement / Purchasing / RFPs

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ACT and Teachers’ Union Partner to Provide Remote Learning Resources Amid Pandemic

ACT and the American Federation of Teachers are partnering to provide free resources as educators increasingly switch to distance learning amid the COVID-19 pandemic.

The post ACT and Teachers’ Union Partner to Provide Remote Learning Resources Amid Pandemic appeared first on Market Brief.




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Pearson K12 Spinoff Rebranded as ‘Savvas Learning Company’

Savvas Learning Company will continue to provide its K-12 products and services, and is working to support districts with their remote learning needs during school closures.

The post Pearson K12 Spinoff Rebranded as ‘Savvas Learning Company’ appeared first on Market Brief.




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Item 02: William Hilton Saunders WWI diary, 1 January 1917 - 24 October 1917




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Item 04: William Hilton Saunders WWI diary, 18 February 1919 - 8 July 1919




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Item 03: William Hilton Saunders WWI diary, 1 January 1918 - 31 December 1918




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Item 01: William Hilton Saunders WWI diary, February 1916 - 2 January 1917




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Arthur Leeman Fulton WWI diary, 1 January - 6 August 1916




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Item 1: George Hugh Morrison diary, 15 January 1916- 1 January 1917




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Item 2: George Hugh Morrison diary, 1 January 1917-9 October 1917




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Item 04: Notebook of Colonel Alfred Hobart Sturdee, 8 August 1914 to 25 February 1918




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Item 01: Captain Vernon Sturdee diary, 25 April, 1915 to 2 July, 1915




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Item 02: Captain Vernon Sturdee diary, 3 September, 1915- 31 December, 1915




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Item 03: Captain Vernon Sturdee diary, 22 September, 1915- 23 January, 1916




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Glass stereoscopic slides of Gallipoli, May 1915 / photographed by Charles Snodgrass Ryan




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Item 07: A Journal of ye [the] Proceedings of his Majesty's Sloop Swallow, Captain Phillip [Philip] Carteret Commander, Commencing ye [the] 23 of July 1766 and ended [4 July 1767]




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Item 08: A Logg [Log] Book of the proceedings on Board His Majesty's Ship Swallow, Captain Philip Carteret Commander Commencing from the 20th August 1766 and Ending [21st May 1768]




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Item 10: Log book of the Swallow from 22 August 1767 to 4 June 1768 / by Philip Carteret




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Item 13: Swallow 1767, A journal of the proceedings on Board His Majesty's Sloop Swallow, commencing the 1st of March 1767 and Ended the 7th of July 1767




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Box 3: Children's book illustrations by various artists, Peg Maltby and Dorothy Wall, , ca. 1932-1975




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Box 4: Children's book illustrations by various artists, Dorothy Wall, ca. 1932




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Box 6: Children's book illustrations by various artists, Dorothy Wall and Noela Young, ca. 1932-1964




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Item 01: Notebooks (2) containing hand written copies of 123 letters from Major William Alan Audsley to his parents, ca. 1916-ca. 1919, transcribed by his father. Also includes original letters (2) written by Major Audsley.




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Item 01: Scorebook of the Aboriginal Cricket Tour of England being a copy in Charles Lawrence's hand, 1868




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Item 01: Ellis Ashmead-Bartlett diary, 1915-1917




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Item 01: Ellis Ashmead-Bartlett diary, 1915-1917




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Art Around the Library - Drawing Perspective

Investigate perspective in some fabulous photographs and discover tips and tricks.




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Smart research for HSC students: Better searching with online resources

In this online session, we simplify searching for you so that the skills you need in one resource will work wherever you are.