(7,301 - 7,320 of 10,083)
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Title
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Connectivity for 3 x 3 x K contingency tables
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Description
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We consider an exact sequential conditional test for three-way conditional test of no interaction. At each time τ, the test uses as the...
Show moreWe consider an exact sequential conditional test for three-way conditional test of no interaction. At each time τ, the test uses as the conditional inference frame the set F(Hτ) of all tables with the same three two-way marginal tables as the obtained table Hτ . For 3 × 3 × K tables, we propose a method to construct F(Hτ) from F(Hτ−1). This enables us to perform efficiently the sequential exact conditional test. The subset Sτ of F (Hτ ) consisting of s + Hτ − Hτ −1 for s ∈ F(Hτ−1) contains Hτ , where the operations + and − are defined elementwise. Our argument is based on the minimal Markov basis for 3 × 3 × K contingency tables and we give a minimal subset M of some Markov basis which has the property that F (Hτ ) = {s − m | s ∈ Sτ , m ∈ M}.
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Collection
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Journal of Algebraic Statistics
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Title
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Matrix Completion for the Independence Model
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Description
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We investigate the problem of completing partial matrices to rank-one matrices in the standard simplex ∆mn−1. The motivation for studying this...
Show moreWe investigate the problem of completing partial matrices to rank-one matrices in the standard simplex ∆mn−1. The motivation for studying this problem comes from statistics: A lack of eligible completion can provide a falsification test for partial observations to come from the independence model. For each pattern of specified entries, we give equations and inequalities which are satisfied if and only if an eligible completion exists. We also describe the set of valid completions, and we optimize over this set.
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Collection
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Journal of Algebraic Statistics
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Title
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One example of general unidentifiable tensors
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Description
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Abstract. Theidentifiabilityofparametersinaprobabilisticmodelisacrucialnotioninstatistical inference. We prove that a general tensor of rank 8...
Show moreAbstract. Theidentifiabilityofparametersinaprobabilisticmodelisacrucialnotioninstatistical inference. We prove that a general tensor of rank 8 in C3 ⊗ C6 ⊗ C6 has at least 6 decompositions as sum of simple tensors, so it is not 8-identifiable. This is the highest known example of balanced tensors of dimension 3, which are not k-identifiable, when k is smaller than the generic rank.
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Collection
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Journal of Algebraic Statistics
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Title
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Frank Gunsaulus, 1912
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Date
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1912
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Description
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Photograph of Frank Gunsaulus. Gunsaulus' "Million Dollar Sermon" inspired Philip D. Armour to fund the creation the Armour Institute of...
Show morePhotograph of Frank Gunsaulus. Gunsaulus' "Million Dollar Sermon" inspired Philip D. Armour to fund the creation the Armour Institute of Technology. Gunsaulus was the Armour Institute's first President, and served for almost 30 years.
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Collection
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Biographical files collection, 1900-2014
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Title
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Institute of Design faculty members, Illinois Institute of Technology, Chicago, Illinois, ca. 1976
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Date
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1976
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Description
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Photograph of Institute of Design faculty members (left to right) John Grimes, John Askwith, James Montague, Len Singer, Robert Graeff, David...
Show morePhotograph of Institute of Design faculty members (left to right) John Grimes, John Askwith, James Montague, Len Singer, Robert Graeff, David Rathbun, Arthur Siegel, and Ken Biasco. Photographer unknown. Date of photograph is unknown. Date range listed is approximate, based on this photograph's use in the 1976 edition of Integral, the Illinois Tech yearbook.
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Collection
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Office of Communications and Marketing photographs, 1905-1999
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Title
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Scale and Scope Economies Drive Asymmetric Competition in Tech Industries
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Creator
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Ryali, Balajirao
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Date
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2020
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Description
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This research is motivated by my industry experience of working with small manufacturers in the high technology industry market space and ...
Show moreThis research is motivated by my industry experience of working with small manufacturers in the high technology industry market space and large manufacturers in the telecom and healthcare industry market spaces. In these industries, small manufacturers thrive on specialization and focus on breakthrough innovation to maintain product differentiation and premium positioning and to sustain competition. In contrast, large manufacturers enjoy the benefits of economies of scale that provide cost efficiencies and use price as major differentiating factor. This research work endeavors to model asymmetric competition that emerges endogenously in industries where scale and scope economies interact to force firms to adopt specialized strategies and address the below research questions:1. How does the cost structure shaped by scope and scale economies in engineering, sales and service drive asymmetric product line choices?2. What channel coordination problems arise in this context?3. How can manufacturers redesign their operating mechanism and sales force to optimize the channel?
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Title
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Environmental Monitoring of University Archives and Special Collections
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Date
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2020
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Description
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This is the final report and analysis of activities conducted as part of Environmental Monitoring of University Archives and Special...
Show moreThis is the final report and analysis of activities conducted as part of Environmental Monitoring of University Archives and Special Collections, a project funded by a Preservation Assistance Grant from the National Endowment of the Humanities (PG-263471-19). This grant was awarded to support the first evercsystematic environmental monitoring of the UASC spaces. This report includes a summary of the collected data, analysis of the data, and potential future activities to be undertaken as a result of the grant activities and the data collected.
Sponsorship: National Endowment For The Humanities, Preservation Assistance Grants for Smaller Institutions
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Title
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Untitled
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Date
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1946
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Description
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Photograph taken by Mary Henry in 1946 as part of a photography course taught by László Moholy-Nagy at the Institute of Design. Inscription on...
Show morePhotograph taken by Mary Henry in 1946 as part of a photography course taught by László Moholy-Nagy at the Institute of Design. Inscription on verso: "Beginning photo lessons in Moholy-Nagy's class, learning to focus the camera, develop & print the negative. Chicago, 1946, Institute of Design."
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Collection
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Mary Dill Henry Papers, 1913-2021
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Title
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Mary Henry surrounded by her paintings, Mendocino, California, 1966
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Date
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1966
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Description
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Photograph of Mary Henry surrounded by her paintings, Mendocino, California, 1966.This photograph was apparently distributed by Estelle...
Show morePhotograph of Mary Henry surrounded by her paintings, Mendocino, California, 1966.This photograph was apparently distributed by Estelle Grunewald, founder of Art to Industry, a business that attempted to connect artists with corporate patrons. Inscription on verso: "Mary Henry 2222 East White Fir Place Freeland, WA 98249 206-331-3404 / Artist surrounded by her paintings, Mendocino, Calif. 1966." A small label is affixed to verso that reads "Please return: Estelle Grunewald Art-to-Industry 4621 Ruthelma Ave. P.A." Photographer unknown.
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Collection
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Mary Dill Henry Papers, 1913-2021
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Title
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Untitled
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Date
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1946
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Description
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Photograph taken by Mary Henry in 1946 as part of a photography course taught by László Moholy-Nagy at the Institute of Design. Inscription on...
Show morePhotograph taken by Mary Henry in 1946 as part of a photography course taught by László Moholy-Nagy at the Institute of Design. Inscription on verso: "Photographed for Moholy-Nagy's class at the Institute of Design, 1946. A lesson in lighting the subject."
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Collection
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Mary Dill Henry Papers, 1913-2021
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Title
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Mary Henry in her garden, Mendocino, California, ca. 1965-1969
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Date
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1965-1969
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Description
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Photograph of Mary Henry in her garden in Mendocino, California in the late 1960s. Inscription on verso: "Mary Henry looking at her 'Japanese'...
Show morePhotograph of Mary Henry in her garden in Mendocino, California in the late 1960s. Inscription on verso: "Mary Henry looking at her 'Japanese' pond in the garden at Mendocino, late sixties." Photographer unknown. Date of photograph unknown. Date indicated is an estimate.
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Collection
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Mary Dill Henry Papers, 1913-2021
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