9,871 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
Additional file 9: of Comprehensive kinome NGS targeted expression profiling by KING-REX
No full textKING-REX gene expression data. Normalized counts (Log2transformed) of KING-REX analysis in each sample, as calculated using the pipeline for gene expression analysis described in M&M. (TXT 375 kb
Additional file 11: of Comprehensive kinome NGS targeted expression profiling by KING-REX
No full textKING-REX ASSAY IN and ASSAY OUT expression data. KING-REX Normalized counts (Log2transformed) for each ASSAY IN and ASSAY OUT for the 319 kinases in each analyzed sample, obtained using the pipeline for kinase fusion event detection described in M&M. (TXT 460 kb
Additional file 1: of Comprehensive kinome NGS targeted expression profiling by KING-REX
No full textFigure S1. Kinase fusion detection by KING-REX vs. RT-qPCR. Relative quantification data as assessed by KING-REX (left) and RT-qPCR (right) analyses for Assay_OUT and Assay_IN regions of ALK in KARPAS299, NTRK1 in KM12, RET in LC2AD and ROS1 in U118MG. Assay_IN and ASSAY_OUT data are reported in blue and red, respectively. Data were normalized as described in M&M section vs. UHRR control sample. (PNG 184 kb
H.M.S. Pelorus, 16 juin, Sidney [i.e. Sydney] New South Wales, 1838 [picture] /
No full textInscription and signature bottom left: first name initial not clear in signature, M(?) or W(?) Reilly.; Rex Nan Kivell Collection NK7060.; Title from inscription l.l.; (ANL) T2119
Martienssen, Rex Distin. Martienssen House, Greenside. 25-03-1940. Sections and elevations
No full textDrawing no Q.2.M. 720x1020. Ink on canvas and ink on paper.Martienssen, Rex Distin. Martienssen House, Greenside. 25-03-1940. Sections and elevations. Ink on canvas & ink on paper. Drawing number Q.2.M. 720 x1020
Eden, Twofold Bay, Australia [picture] /
No full textAntipodes observed / Cedric flower, pl.no.120.; Exhibited: Beyond the Picket Fence, NLA 1995.; Rex Nan Kivell Collection NK503/3; S2108; U2108
Quantifying Shoebill (Balaeniceps rex) habitat suitability in the Bangweulu Wetlands, Zambia
No full textA quantitative analysis of suitable habitat for the Shoebill (Balaeniceps rex), a large waterbird confined to African swamps, was conducted by using a combination of aerial photographs and a previously determined habitat suitability model from the Bangweulu Wetlands, Zambia. The Shoebill is considered Vulnerable on the IUCN red list, but there are no pre-existing quantitative data on the composition of suitable habitat for this species. Both univariate and multivariate analyses revealed that non-wetland habitats as well as non-vegetated wetland habitats have low suitability compared to vegetated wetland habitats. Notably, reeds correlated significantly and positively with suitability (rs = 0.338, p < 0.001). We found little support for the hypothesis that floating vegetation is highly suitable for Shoebills, but the analysis for this habitat may have suffered as a result of confounding factors. The relationship between flooded grassland and suitability was highly variable and was not significant (rs = 0.009, p = 0.807). In contrast, dry grassland correlated positively with suitability (rs =0.289, p < 0.001), but its suitability scores were generally much lower than for flooded grassland. Quantitative data on Shoebill habitat suitability will be useful for future Shoebill population surveys, and will improve our ability to make informed decisions regarding its conservation
Den unvermuthet frühen Tod Der Hochgebohrnen Gräfin Johanna Mariana von Rex, Des Hochgebohrnen Grafen und Herrn, Herrn Johann Caspar Gottlob von Rex, auf Schönbrunn, Churfürstl. Sächßl. hochbestallten Kammerherrn und Reise-Marschalls, ältesten Gräfin Tochter, welche in Schönbrunn am 22. August 1779. im neunten Jahr Jhres Alters entschlief, und am 25. desselben gegen Abend allhier in die Gruft beygesetzt wurde, beklagte, und suchte den Hochgräfl. Aeltern Trost aus der Höhe zu erbitten ... M. Johann Gottfried Götze, Pfarrer daselbst
No full textTrauerschrift auf Johanna Mariana von Rex, Tochter des Grafen Johann Caspar Gottlob von Rex, +22. Aug. 1779Vorlageform des Erscheinungsvermerks: Görlitz, gedruckt bey Johann Friedrich Fickelscherer
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