Dear Friends at UAI mailing center. Would it be possible to post the greeting below for the UAI list? Thanks in advance, Judea Pearl
--------------------------------------- Dear Friends in causality research, This mid-summer greeting of UCLA Causality blog contains: A. News items concerning causality research B. Interesting discussions and scientific results http://www.mii.ucla.edu/causality/ 1. The next issue of the Journal of Causal Inference is scheduled to appear this month, and the table of content can be viewed here: https://mail.cs.ucla.edu/service/home/~/JCI_3_2_toc.pdf?auth=co&loc=en_US&id=516592&part=2 2. A new journal "Observational Studies" is out http://obsstudies.org/journal.php?id=24 and its first issue is dedicated to the legacy of William Cochran (1909-1980). My contribution to this issue can be viewed here http://ftp.cs.ucla.edu/pub/stat_ser/r456.pdf 3. A video recording of my Cassel Lecture at the SER conference, Denver, June 2015 , can be viewed here: https://epiresearch.org/about-us/archives/video-archives-2/the-scientific-approach-to-causal-inference/ 4. A video of a conversation with Robert Gould on teaching causality can be viewed on Wiley's Statistics Views www.statisticsviews.com/view/index.html (2 parts, scroll down) 5. We are informed of the upcoming publication of a new book, Rex Kline "Principles and Practice of Structural Equation Modeling, Fourth Edition. http://psychology.concordia.ca/fac/kline/books/nta.pdf Judging by the chapters I read, this book promises to be unique; it treats structural equation models for what they are: carriers of causal assumptions and tools for drawing causal conclusions. Kudos Rex. 6. We are informed of another book on causal inference: Imbens, Guido W.; Rubin, Donald B. "Causal Inference in Statistics, Social, and Biomedical Sciences: An Introduction" Cambridge University Press (2015). Readers will quickly realize that the ideas, methods, and tools discussed on this blog were kept out of this book. Omissions include: Control of confounding, testable implications of causal assumptions, visualization of causal assumptions, generalized instrumental variables, mediation analysis, moderation, interaction, attribution, external validity, explanation, representation of scientific knowledge and, most importantly, the unification of potential outcomes and structural models, Given that the book is advertised as describing "the leading analysis methods" of causal inference, unsuspecting readers will get the impression that the field as a whole is stranded in basic limitations, and that we are still lacking the tools to cope with basic causal tasks such as confounding control or model testing. I do not believe mainstream methods of causal inference are in such state of helplessness. The authors' motivation and rationale for this exclusion were discussed at length on this blog. See "Are economists smarter than epidemiologists" http://www.mii.ucla.edu/causality/?p=1241 and "On the First Law of Causal Inference" http://www.mii.ucla.edu/causality/?m=201411 As most of you know, I have spent many hours trying to explain to leaders of the potential outcome school what insights and tools their students would be missing if not given exposure to a broader intellectual environment, one that embraces model-based inferences side by side with potential outcomes. This book confirms my concerns, and its insularity-based impediments are likely to evoke interesting public discussions on the subject. For example, educators will undoubtedly wish to ask: (1) Is there any guidance we can give students on how to select covariates for matching or adjustment?. (2) Are there any tools available to help students judge the plausibility of ignorability-type assumptions? (3) Aren't there any methods for deciding whether identifying assumptions have testable implications?. I believe that if such questions are asked often enough, they will eventually evoke non-ignorable answers. 7. The ASA has issued a press release yesterday , recognizing Tyler VanderWeele's new book "Explanation in Causal Inference," winner of the 2015 Causality in Statistics Education Award http://www.amstat.org/newsroom/pressreleases/JSM2015-CausalityinStatisticsEducationAward.pdf Congratulations! Tyler. Information on nominations for the 2016 Award will soon be announced. 8. Since our last Greetings (Spring, 2015) we have had a few lively discussions posted on this blog. I summarize them below: 8.1 Indirect Confounding and Causal Calculus (How getting too anxious to criticize do-calculus may cause you to miss an easy solution to a problem you thought was hard). July 23, 2015 http://www.mii.ucla.edu/causality/?p=1545 8.2 Does Obesity Shorten Life? Or is it the Soda? (On whether it was the earth that caused the apple to fall? or the gravitational field created by the earth?.) May 27, 2015 http://www.mii.ucla.edu/causality/?p=1534 8.3 No Causation without Manipulation (On whether anyone takes this mantra seriously nowadays, and whether we need manipulations to store scientific knowledge) May 14, 2015 http://www.mii.ucla.edu/causality/?p=1518 8.4 David Freedman, Statistics, and Structural Equation Models (On why Freedman invented "response schedule"?) May 6, 2015 http://www.mii.ucla.edu/causality/?p=1502 8.5 We also had a few breakthroughs posted on our technical report page http://bayes.cs.ucla.edu/csl_papers.html My two favorites are: http://ftp.cs.ucla.edu/pub/stat_ser/r450.pdf http://ftp.cs.ucla.edu/pub/stat_ser/r452.pdf because they deal with a long-standing problem: "How generalizable are empirical studies?" Enjoy the rest of the summer Judea Judea Pearl Professor UCLA Computer Science Department 4532 Boelter Hall Los Angeles, CA 90095-1596 310.825.3243 [email protected]
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