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Online controlled experiments at large scale

Ron Kohavi, Alex Deng, Brian Frasca, Toby Walker, Ya Xu, Nils Pohlmann
2013 Proceedings of the 19th ACM SIGKDD international conference on Knowledge discovery and data mining - KDD '13  
Running experiments at large scale requires addressing multiple challenges in three areas: cultural/organizational, engineering, and trustworthiness.  ...  At Microsoft's Bing, the use of controlled experiments has grown exponentially over time, with over 200 concurrent experiments now running on any given day.  ...  We have been fortunate to have been part of Bing during the massive growth in experimentation, and wish to thank many people for encouraging data-driven decision making, especially Qi Lu and Harry Shum  ... 
doi:10.1145/2487575.2488217 dblp:conf/kdd/KohaviDFWXP13 fatcat:z4lqv2qcnnhjjofbpnarrbkks4

Online performance observation of large-scale parallel applications [chapter]

A.D. Malony, S. Shende, R. Bell
2004 Advances in Parallel Computing  
Recent work on the TAU performance system to enable large-scale performance observation and analysis is discussed. The paper concludes with plans for future work.  ...  In this paper, we discuss the problem of scaling and perfomance observation, and the ramifications of adding online support. A general online performance system architecture is presented.  ...  their effective use.  ... 
doi:10.1016/s0927-5452(04)80093-5 fatcat:yoj6pjiojbhonb462ssl2w5jam

Online crystallography: fully automated remote-controlled protein-to-structure pipelines

Jose Marquez
2020 Acta Crystallographica Section A: Foundations and Advances  
These pipelines effectively provide online access to crystallization and synchrotron diffraction and data analysis facilities and remove key bottlenecks in modern crystallography.  ...  and an automated pipeline for large scale compound and fragment screening to support structure guided drug discovery programs.  ...  These pipelines effectively provide online access to crystallization and synchrotron diffraction and data analysis facilities and remove key bottlenecks in modern crystallography.  ... 
doi:10.1107/s0108767320097883 fatcat:cgldq4lp4ngbxe7ffsb4tpcbkm

Online randomized controlled experiments at scale: lessons and extensions to medicine

Ron Kohavi, Diane Tang, Ya Xu, Lars G. Hemkens, John P. A. Ioannidis
2020 Trials  
Technological advances, online interactions, and the availability of large-scale data allowed technology companies to take the science of RCTs and use them as online randomized controlled experiments at  ...  /Oath, run online randomized controlled experiments at scale, namely hundreds of concurrent controlled experiments on millions of users each, commonly referred to as A/B tests.  ...  Acknowledgements We wish to thank members of Microsoft's Analysis & Experimentation team and LinkedIn's experimentation team for their involvement in many of the experiments discussed here.  ... 
doi:10.1186/s13063-020-4084-y pmid:32033614 fatcat:eiefj6vyufcc7kevdswaebo42y

Towards Continuous Compounding Effects and Agile Practices in Educational Experimentation [article]

Luis M. Vaquero, Niall Twomey, Miguel Patricio Dias, Massimo Camplani, Robert Hardman
2021 arXiv   pre-print
of processes that are at hand: from rapid ideation and prototyping produced in small scale experiments on the one hand, to influencing recommendations of best teaching practices with large-scale and technology-enabled  ...  This offers low-risk opportunities to explore and drive value though well-planned lasting campaigns that iterate quickly at a large scale.  ...  The combination of the rapid experimentation of teacher-led small scale experiments with the rigour of large scale RCTs has been enabled by the availability of new technologies at scale (see "large scale  ... 
arXiv:2112.01243v1 fatcat:zfbtcwi6yngsdjgi7trmsomuxy

Effects of cognitive behavioural therapy for insomnia on the mental health of university students: study protocol for a randomized controlled trial

Daniel Freeman, Bryony Sheaves, Guy M. Goodwin, Ly-Mee Yu, Paul J. Harrison, Richard Emsley, Sophie Bostock, Russell G. Foster, Vanashree Wadekar, Christopher Hinds, Colin A. Espie
2015 Trials  
Discussion: This study will be the first large-scale causal test of the relationship between sleep disturbance and psychotic experiences.  ...  Our aim is to reduce insomnia in a large general population group, and examine the effect on paranoia and hallucinations at the age when mental health problems typically emerge.  ...  The scale comprises 16 items, each rated on a one (not at all) to five (totally) scale.  ... 
doi:10.1186/s13063-015-0756-4 pmid:26016697 pmcid:PMC4448545 fatcat:6j4r2lzmsnafxmj3xhdvtkowze

Ad Attributes and Attribution: Large-Scale Field Experiments Measure Online Customer Acquisition

David H. Reiley, Randall Aaron Lewis, Taylor A. Schreiner
2012 Social Science Research Network  
Using a large-scale experiment involving 3.7 million treated subjects on Yahoo!, we measure the ability of online display advertising to cause new account signups at an online business.  ...  JEL Classification C93 -Field Experiments, M37 -Advertising, L81 -E-Commerce Keywords Online advertising, advertising effectiveness, field experiment, click attribution * Lewis and Reiley: Yahoo!  ...  We address this issue by running a large-scale, randomized controlled experiment tracking ad exposures and outcomes at the individual level. The experiment randomly assigned each Yahoo!  ... 
doi:10.2139/ssrn.2049457 fatcat:egjb5zuapnfglli67hsnixkdi4

How effective and acceptable is Web 2.0 Balint group participation for general practitioners and general practitioner registrars in regional Australia? A pilot study

Hilton Koppe, Thea F. van de Mortel, Christine M. Ahern
2015 The Australian journal of rural health  
The study aim was to evaluate online Balint groups for rural doctors and determine effect size for a full-scale trial.  ...  Design: A mixed-methods approach, including a prepost controlled trial and thematic analysis of qualitative data. Setting: Rural primary care.  ...  Scores on these scales administered at time 1 (pre-intervention) were used as a covariate to control for individual differences.  ... 
doi:10.1111/ajr.12212 pmid:26114400 pmcid:PMC4755195 fatcat:eo3fhmpi5vajlmx5zjm3mnzwry

Impact of Online Flow Experience on Personality Variables, Subjective Happiness and Satisfaction with Life

Soma Parija
2012 IOSR Journal of Humanities and Social Science  
This empirical study aims to investigate the mediating effect of online flow experience on the relationship between personality variables (extraversion/introversion and locus of control) and positive psychology  ...  Then in the second phase of data collection, online flow experience (mediator) and DVs were obtained from the same subjects. Data were analysed using regression analysis techniques.  ...  , OFE = Online Flow Experience The regression analysis is used for testing the mediating effects of online flow experiences on the personality variables and subjective happiness.  ... 
doi:10.9790/0837-0513743 fatcat:p2eqgsfwt5f65bbt2euyd36iuy

Longitudinal impacts of an online safety and health intervention for women experiencing intimate partner violence: randomized controlled trial

Marilyn Ford-Gilboe, Colleen Varcoe, Kelly Scott-Storey, Nancy Perrin, Judith Wuest, C. Nadine Wathen, James Case, Nancy Glass
2020 BMC Public Health  
processes and effects useful for future refinement and scale up.  ...  Importantly, the tailored intervention had greater positive effects for 4 groups of women, those: with children under 18 living at home; reporting more severe violence; living in medium-sized and large  ...  Experiences of Coercive Control were measured on the 10-item Women's Experiences with Battering (WEB) Scale [54] .  ... 
doi:10.1186/s12889-020-8152-8 pmid:32098633 fatcat:3ir5krczjrbx3c2ssn2p54fxua

Direct and Conceptual Replications of Burgmer & Englich (2012): Power May Have Little to No Effect on Motor Performance

Margaret Cusack, Nadya Vezenkova, Christopher Gottschalk, Robert J. Calin-Jageman, Jeffrey M Haddad
2015 PLoS ONE  
We conducted two high-powered direct replications of the effects of power on golf, two online conceptual replications using mirror-tracing as a performance measure, and an additional conceptual replication  ...  None of these secondary analyses revealed a strong effect of power on performance.  ...  Fig 1 . 1 Meta-analysis of the effects of power on performance. At top are shown results the two experiments in Burgmer & Englich 4 on a 1-5 scale, n = 20).  ... 
doi:10.1371/journal.pone.0140806 pmid:26536592 pmcid:PMC4633206 fatcat:6gnfkvqtlbfftpfx6sui7h5ym4

The Rise of the Super Experiment

John C. Stamper, Derek Lomas, Dixie Ching, Steven Ritter, Kenneth R. Koedinger, Jonathan Steinhart
2012 Educational Data Mining  
Now, with the advent of large student populations using internetbased learning software, online experiments can serve as a third setting for experimental data collection.  ...  Traditional experimental paradigms have focused on executing experiments in a lab setting and eventually moving successful findings to larger experiments in the field.  ...  Recently, free-to-play online game companies, such as Zynga, have made use of large-scale optimization experiments with their large number of online players.  ... 
dblp:conf/edm/StamperLCRKS12 fatcat:xmm336jacrcnxbnfnmu4pwtsvm

The effects of improving sleep on mental health (OASIS): a randomised controlled trial with mediation analysis

Daniel Freeman, Bryony Sheaves, Guy M Goodwin, Ly-Mee Yu, Alecia Nickless, Paul J Harrison, Richard Emsley, Annemarie I Luik, Russell G Foster, Vanashree Wadekar, Christopher Hinds, Andrew Gumley (+30 others)
2017 Lancet psychiatry  
The sleep treatment programme was provided to all the trial participants at no cost by Sleepio/Big Health Ltd.  ...  A large effect size reduction was found with the digital CBT intervention in a large student population. But we designed the trial to establish the consequent effects on psychotic experiences.  ...  We therefore searched for randomised controlled studies that set out to reduce insomnia and examine the effects on psychotic experiences.  ... 
doi:10.1016/s2215-0366(17)30328-0 pmid:28888927 pmcid:PMC5614772 fatcat:2flrf474ifee5nhwinzuqu7cwm

A Peer-Led, Social Media-Delivered, Safer Sex Intervention for Chinese College Students: Randomized Controlled Trial

Wai Han Sun, Carlos King Ho Wong, William Chi Wai Wong
2017 Journal of Medical Internet Research  
Outcome evaluations included safer sex attitudes, behavioral skills, and behaviors, while process evaluation focused on online experience, online-visiting frequency, and online engagement.  ...  The effect of online-visiting frequency and online engagement on outcome variables was investigated.  ...  Acknowledgments This study is supported by funding for the Common Core Course, Sexuality and Culture (UH9039), at the University of Hong Kong.  ... 
doi:10.2196/jmir.7403 pmid:28793980 pmcid:PMC5569248 fatcat:xlp6tnnwzvghnap5ja43vaytaa

Online Evaluation for Effective Web Service Development [article]

Roman Budylin, Alexey Drutsa, Gleb Gusev, Pavel Serdyukov, Igor Yashkov
2018 arXiv   pre-print
Large internet companies use online evaluation on a day-to-day basis and at a large scale. The number of smaller companies using A/B testing in their development cycle is also growing.  ...  Web development across the board strongly depends on quality of experimentation platforms.  ...  Finally, we discuss how large-scale experimental infrastructure [43, 63, 66] can be used to collect experiments for metric evaluation [20] .  ... 
arXiv:1809.00661v1 fatcat:lvlrodkqr5hgrncvve5u7m64ba
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