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Comment on “Causal inference using invariant prediction” Qingyuan…
www.statslab.cam.ac.uk/~qz280/publication/invariant-prediction-comment/comment.pdf22 Jul 2024: We would welcomethe authors’ comments on this summary. To test the empirical performance of ICP, we use the authors’ software ona protein signaling network dataset. ... c) without enough interventions, the set of causal parentsis unidentifiable, and -
Statistical modellingLecturer: Alberto J. Coca…
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/notes_3Dec19.pdf22 Jul 2024: Often we want to test whether a given group of variables is significant. ... One sensible way of proceeding is to construct a generalised likelihood ratio test. -
How infectious was COVID-19 when it first circulated in Wuhan?
www.statslab.cam.ac.uk/~qz280/talk/corpus-masterclass-2022/slides.pdf22 Jul 2024: What happened? PCR tests were being developed and distributed. Evidence elsewhere1 COVID-19’s pathogen—SARS-CoV-2—is far from the first human coronavirus. -
Mendelian Randomization: Old and New Insights Qingyuan Zhao…
www.statslab.cam.ac.uk/~qz280/talk/penn-biostat-2021/slides.pdf22 Jul 2024: Randomization tests to find causal variants (Spielman, McGinnis, &Ewens, 1993; Bates et al., 2020). ... I Randomization test for the sharp null H0 : Y (1) Y (0) = β.I Key idea: Under H0, Y (0) = Y βX. -
SISCER Module 12 Lecture 3: Sensitivity analysis
www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/L3.pdf22 Jul 2024: I By further assuming no unmeasured confounders Ai Yi (a) | Xi for all a,randomization tests can be constructed as in randomized experiments. -
Multiple conditional randomization tests
www.statslab.cam.ac.uk/~qz280/talk/mcp-2022/slides.pdf22 Jul 2024: This is a permutation test, although resampling is not needed. Qingyuan Zhao (University of Cambridge) Multiple conditional randomization tests August 31, 2022 @ MCP Conference 14 / 26. ... Permutation tests for treatment effect in randomized experiments. -
www.statslab.cam.ac.uk/~qz280/post/index.xml
www.statslab.cam.ac.uk/~qz280/post/index.xml22 Jul 2024: or I would call them “tests of unusualness” or “tests of aberrance” or “test of fishiness”) as tests where the treatment (or any variable, for ... randomization tests creates a “control group of numbers” to -
A fun model to explain the surging popularity of Mendelian…
https://www.statslab.cam.ac.uk/~qz280/post/mr-vs-gwas-2021/22 Jul 2024: Let’s see how well this model stands the test of time. -
PathGPS 1 PathGPS: Discover shared genetic architecture using GWAS ...
www.statslab.cam.ac.uk/~qz280/publication/pathgps/paper.pdf22 Jul 2024: regard the SNPs with at least one significant marginal association test as signal SNPs (1200. ... in total). We regard the SNPs with no significant marginal association tests as noise SNPs. -
Lecture Notes on Statistical Modelling Qingyuan Zhao December 2, ...
www.statslab.cam.ac.uk/~qz280/teaching/modelling-2022/notes.pdf22 Jul 2024: 112.3.3 Confidence sets. 112.3.4 Hypothesis tests and analysis of variance. 12. ... The level-α likelihood ratio test rejects H0 : β1 = 0 when F > Fpp0,np(α). -
CAUSAL INFERENCE - Example Sheet 2 Solutions J. Hera ...
www.statslab.cam.ac.uk/~qz280/teaching/causal-2023/S2.pdf22 Jul 2024: The author agrees and sets this coecientto 0.9. This issue is discussed in the last paragraph of the section “Tests of initial a priorimodels” and in section “Sensitivity analysis”. -
On Sensitivity Value of Pair-Matched Observational Studies
www.statslab.cam.ac.uk/~qz280/publication/sensitivity-value/slides.pdf22 Jul 2024: Can test the sharpnull hypothesis by e.g. Wilcoxon’s signed rank test. ... I When Γ > 1: Rosenbaum obtained lower and upper bounds ofthe p-value of any signed score test. -
1-dgk.dvi
www.statslab.cam.ac.uk/~grg/books/hammfest/1-dgk.pdf22 Mar 2024: Thiswas his skill in concocting the all but insoluble scholarship questions thatwere then in vogue (and which passed the test of acceptance only if theybaffled one’s fellow examiners). -
Machine Learning meets Biostatistics IIA crash course on Causal ...
www.statslab.cam.ac.uk/~qz280/talk/ccaim-summer-school-2022/slides.pdf22 Jul 2024: How do we test XJ XK | XL in DAG models? -
MATHEMATICS OF MACHINE LEARNING Part IIExample Sheet 2 (of ...
www.statslab.cam.ac.uk/~rds37/teaching/machine_learning/Qu2.pdf20 Feb 2024: To decide the winner, the classifiers are applied to n new i.i.d.datapoints (the so-called test data). -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=826 Jul 2024: Series B, Statistical methodology. (2021). 84,. 382. (doi: 10.1111/rssb.12483). USP: an independence test that improves on Pearson's chi-squared and the $G$-test. -
Small Data, Big Time—A retrospect of the first weeks of COVID-19
www.statslab.cam.ac.uk/~qz280/publication/covid-19-retrospect/paper.pdf22 Jul 2024: This means that evidence from theprevious commercial tests, which had already identified a SARS-like coronavirus a week earlier, could notbe relied on in the official investigations. ... No new cases were announced before January 17, because the local -
Probability J.R. Norris January 22, 2024 1 Contents 1 ...
www.statslab.cam.ac.uk/~james/Lectures/p.pdf22 Jan 2024: A test is performed on arandomly chosen person, which is known empirically to give a positive result for 98% ofpeople affected by the condition and 1% of those unaffected. ... Suppose the test is positive.What is the probability that the chosen person -
Practical: Randomization inference
www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/S1.pdf22 Jul 2024: Why?• How can you "invert" the randomization tests to obtain an interval estimator of the treatment. ... On the other hand, the randomization test is based on the randomization introduced by theexperimenter. -
SISCER Module 12 Lecture 1: Randomization inference
www.statslab.cam.ac.uk/~qz280/teaching/siscer-2023/L1.pdf22 Jul 2024: It turns out that Fisher’s exact test is also valid for this problem. ... Example: Fisher's exact test. Example: Stepped-wedge design. Example: Matched observational studies. -
www.statslab.cam.ac.uk/~qz280/tag/freedman/index.xml
www.statslab.cam.ac.uk/~qz280/tag/freedman/index.xml22 Jul 2024: or I would call them “tests of unusualness” or “tests of aberrance” or “test of fishiness”) as tests where the treatment (or any variable, for ... randomization tests creates a “control group of numbers” to -
BETS: The dangers of selection bias in early analyses ...
www.statslab.cam.ac.uk/~qz280/talk/ghent-2021/slides.pdf22 Jul 2024: False negative test: Her first test was negative. A few days later she wastested again and the result came back positive. ... The principle is to only include cases as Wuhan-exported that pass a “beyond areasonable doubt” test. -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=2726 Jul 2024: 127,. 2482. (doi: 10.1016/j.spa.2016.11.004). Tests for separability in nonparametric covariance operators of random surfaces. ... 2017). 62,. 4831. (doi: 10.1088/1361-6560/aa6914). Goodness-of-Fit Tests for High Dimensional Linear Models. -
Bayesian Non-linear Statistical Inverse Problems
www.statslab.cam.ac.uk/~nickl/Site/__files/FINALBOOKPDF.pdf16 Jan 2024: The statistical intuition behind this algorithm is simple: We compute the new(conditionally Gaussian) proposal sm and perform a likelihood ratio test against theprevious position #m of the Markov chain. ... D m0ıN and log N."/ D cNı2N , c > 0; constant -
www.statslab.cam.ac.uk/~qz280/tag/randomization-inference/index.xml
www.statslab.cam.ac.uk/~qz280/tag/randomization-inference/index.xml22 Jul 2024: 00 0000 https://www.statslab.cam.ac.uk/qz280/talk/imperial-2022/ Multiple conditional randomization tests https://www.statslab.cam.ac.uk/qz280/talk/mcp-2022/ Wed, 31 Aug 2022 ... 27 Jun 2022 17:10:00 0000 https://www.statslab.cam.ac.uk/qz280/talk/ims-2022 -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=7926 Jul 2024: INTERNET ECONOMICS. (1997). 253. (link to publication). Fast, accurate and inelegant valuation of American options. -
www.statslab.cam.ac.uk/~qz280/tag/multiple-testing/index.xml
www.statslab.cam.ac.uk/~qz280/tag/multiple-testing/index.xml22 Jul 2024: Mar 2023 14:36:34 -0400 https://www.statslab.cam.ac.uk/qz280/publication/ranc/ Multiple conditional randomization tests https://www.statslab.cam.ac.uk/qz280/publication/multiple-crts/ Thu, 22 ... conservative/ Cross-screening in observational studies -
BETS: The dangers of selection bias in early analyses ...
www.statslab.cam.ac.uk/~qz280/talk/yale-biostats-2020/slides.pdf22 Jul 2024: The principle is to only include cases as Wuhan-exported that pass a “beyond areasonable doubt” test. ... Variations of Assumption 3 (exponential growth) and Assumption 5 (stabletravel) are implemented to test sensitivity. -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=6126 Jul 2024: 2006). 12. (doi: 10.1109/bod.2006.320814). Health economics and the search for shunt-responsive symptomatic hydrocephalus in the elderly. -
www.statslab.cam.ac.uk/~qz280/author/dylan-small/index.xml
www.statslab.cam.ac.uk/~qz280/author/dylan-small/index.xml22 Jul 2024: tests for instrumental variable designs with an application to tendency to operate https://www.statslab.cam.ac.uk/qz280/publication/iv-falsification/ Wed, 01 Aug 2018 00:00:00 0000 ... qz280/publication/uniformly-conservative/ Cross-screening in -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=7426 Jul 2024: LCG Rogers, W Stummer. – Insurance: Mathematics and Economics. (2000). 27,. -
www.statslab.cam.ac.uk/~qz280/tag/randomization/index.xml
www.statslab.cam.ac.uk/~qz280/tag/randomization/index.xml22 Jul 2024: or I would call them “tests of unusualness” or “tests of aberrance” or “test of fishiness”) as tests where the treatment (or any variable, for ... randomization tests creates a “control group of numbers” to -
www.statslab.cam.ac.uk/~qz280/author/yao-zhang/index.xml
www.statslab.cam.ac.uk/~qz280/author/yao-zhang/index.xml22 Jul 2024: 00:00 0000 https://www.statslab.cam.ac.uk/qz280/publication/marginal-sensitivity-semiparametric/ What is a randomization test? ... tests https://www.statslab.cam.ac.uk/qz280/publication/multiple-crts/ Thu, 22 Apr 2021 09:27:32 0000 -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=6226 Jul 2024: MJ Sculpher, MJ Buxton, BA Ferguson, DJ Spiegelhalter, AJ Kirby. – Health Economics. -
www.statslab.cam.ac.uk/~qz280/tag/fisher/index.xml
www.statslab.cam.ac.uk/~qz280/tag/fisher/index.xml22 Jul 2024: or I would call them “tests of unusualness” or “tests of aberrance” or “test of fishiness”) as tests where the treatment (or any variable, for ... randomization tests creates a “control group of numbers” to -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=10226 Jul 2024: JP Miller. – Proceedings of the International Congress of Mathematicians. Discussion of Adaptive confidence intervals for the test error in classification by Laber and Murphy. -
www.statslab.cam.ac.uk/~qz280/author/luke-keele/index.xml
www.statslab.cam.ac.uk/~qz280/author/luke-keele/index.xml22 Jul 2024: tests for instrumental variable designs with an application to tendency to operate https://www.statslab.cam.ac.uk/qz280/publication/iv-falsification/ Wed, 01 Aug 2018 00:00:00 0000 -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=2026 Jul 2024: Q Zhao, T Hastie. – Journal of Business and Economic Statistics. -
www.statslab.cam.ac.uk/~qz280/author/rachel-kelz/index.xml
www.statslab.cam.ac.uk/~qz280/author/rachel-kelz/index.xml22 Jul 2024: kelz/ Falsification tests for instrumental variable designs with an application to tendency to operate https://www.statslab.cam.ac.uk/qz280/publication/iv-falsification/ Wed, 01 Aug 2018 00:00:00 -
Testimonials from Our Clients | The Statistics Clinic
www.statslab.cam.ac.uk/clinic/testimonials.html26 Jul 2024: Heather, Department of Economics). Thank you, what a great free service for us "lost" biologists to be able to more accurately understand our data and hopefully avoid wrong interpretations. -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=326 Jul 2024: doi: 10.1093/mnras/stad1590). What is a Randomization Test? Y Zhang, Q Zhao. – ... J Am Stat Assoc. (2023). ahead-of-print,. 1. (doi: 10.1080/01621459.2023.2199962). Temporally Causal Discovery Tests for Discrete Time Series and Neural Spike Trains. -
Dr Qingyuan Zhao | Statistical Laboratory
www.statslab.cam.ac.uk/person/qz28026 Jul 2024: 2023). (link to publication). What is a Randomization Test? Y Zhang, Q Zhao. – -
www.statslab.cam.ac.uk/~qz280/tag/fun-posts/index.xml
www.statslab.cam.ac.uk/~qz280/tag/fun-posts/index.xml22 Jul 2024: well this model stands the test of time.</p>. -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=1926 Jul 2024: Causal Interpretations of Black-Box Models. Q Zhao, T Hastie. – Journal of Business and Economic Statistics. -
www.statslab.cam.ac.uk/~qz280/tag/philosophy/index.xml
www.statslab.cam.ac.uk/~qz280/tag/philosophy/index.xml22 Jul 2024: or I would call them “tests of unusualness” or “tests of aberrance” or “test of fishiness”) as tests where the treatment (or any variable, for ... randomization tests creates a “control group of numbers” to -
Publications | Statistical Laboratory
www.statslab.cam.ac.uk/publications?page=2226 Jul 2024: LCG Rogers. – Decisions in Economics and Finance. (2018). 41,. 447. -
IV & MR (project page) | Qingyuan Zhao
https://www.statslab.cam.ac.uk/~qz280/project/iv-mr/22 Jul 2024: July 2019 eLifeWe propose a falsification test for the IV assumptions using sub-populations of the data with overwhelming proportion of treated or …. Luke Keele, Qingyuan Zhao, Rachel Kelz, Dylan Small. -
How the Clinic Works | The Statistics Clinic
www.statslab.cam.ac.uk/clinic/service.html26 Jul 2024: Research. Show our clients novel, cutting edge methods that may be used to understand data better, make more precise predictions and test hypotheses more reliably. -
Group Members
www.statslab.cam.ac.uk/~rjs57/Group.html18 Jul 2024: Yining Chen (Assistant Professor then Associate Professor, Department of Statistics, London School of Economics and Political Science). ... Tengyao Wang (Lecturer, Department of Statistical Science, University College London; Associate Professor, London -
www.statslab.cam.ac.uk/~qz280/author/qingyuan-zhao/index.xml
www.statslab.cam.ac.uk/~qz280/author/qingyuan-zhao/index.xml22 Jul 2024: tests https://www.statslab.cam.ac.uk/qz280/talk/mcp-2022/ Wed, 31 Aug 2022 13:45:00 0000 https://www.statslab.cam.ac.uk/qz280/talk/mcp-2022/ Confounder selection: ... 09:00:00 0000 https://www.statslab.cam.ac.uk/qz280/talk/fisher-2022/ What is a
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