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Not to be confused with: EPPO Global Database, or Eppo Experimentation Platform, or European Plant Protection Organization, or European Public Prosecutor’s Office

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  • Large scale experimentation
    September 28, 2023

    Large scale experimentation

    A core aspect of data science is that decisions are made based on data, not (a-priori) beliefs. We ship changes to products or algorithms because they outperform the status quo in experiments. This has made experimentation rather popular across data driven companies.

    The experiments most companies run today are based on classical statistical techniques, in particular null hypothesis statistical testing. There, the focus is on analyzing a single experiment that is sufficiently powered. However, these techniques ignore one crucial aspect that is prevalent in many contemporary settings: we have many experiments to run and this introduces an opportunity cost: every time we assign an observation to one experiment, we lose the opportunity to assign it to another.

    Read more: https://multithreaded.stitchfix.com/blog/2020/07/07/large-scale-experimentation/

  • September 18, 2023

    How To Drive a Culture of Experimentation For Effective AI/ML

    In large organizations, the sheer amount of workflows, applications, and data platforms can monopolize all of your development resources. Projects that are simple patch-stitch-release do not generate long term revenue. Building a data science pipeline on top of shaky consolidation efforts can wreak havoc on data governance. Latency, while moving data from one part of the pipeline to another, can impede even the best data science efforts.

    Read more: https://towardsdatascience.com/how-to-build-a-culture-of-experimentation-for-effective-ai-ml-de843752dae9

  • September 15, 2023

    Online experimentation: The new paradigm for building AI applications

    In the past, AI/ML research engineers led the development of AI features. Their efforts were largely focused on offline testing: building and refining training data, engineering specific features, and tuning hyperparameters to optimize metrics like precision and recall. This process took months and was often completed without direct user feedback.

    Today, we live in a world where new, pre-trained foundation models come out each week, and AI features can be built by any engineer. In this rapidly changing environment, speed is far more important than precision. The companies that will win this wave of AI development will embrace a new paradigm of testing—one focused on quickly launching features, rapidly testing new combinations of models, prompts, and parameters, and continuously leveraging user interactions to improve performance.

    Read more

  • September 7, 2023

    Experimentation Induces Learning: 5 Examples That Are Proof

    Conducting online experiments is like training your digital property. It not only enhances your conversion rate but also provides valuable opportunities to gain insights into various facets of the digital landscape, resulting in the overall growth and development of your company.

    Read more: https://vwo.com/blog/experimentation-induces-learning-5-examples-that-are-proof/

  • September 4, 2023

    Best A/B Testing Tools for 2023

    A/B testing is no longer a new field. Finding a proper A/B testing tool isn’t the problem anymore. Now, the problem is choosing the right one.

    Google has announced that it will shut down Google Optimize in September 2023, putting an end to one of the most used A/B testing tools ever.

    We’ve assembled a list of the top A/B testing tools, with corresponding reviews from A/B testing experts to help you in your decision making process.

    Read more: https://cxl.com/blog/ab-testing-tools/

  • Choosing a Sequential Testing Framework
    August 29, 2023

    Choosing a Sequential Testing Framework

    Sequential tests are the bread and butter for any company conducting online experiments. The literature on sequential testing has developed quickly over the last 10 years, and it’s not always easy to determine which test is most suitable for the setup of your company — many of these tests are “optimal” in some sense, and most leading A/B testing companies have their own favorite.

    Read more: https://engineering.atspotify.com/2023/03/choosing-sequential-testing-framework-comparisons-and-discussions/

  • August 17, 2023

    The Ultimate Guide to Experimentation for Product Teams

    Experimentation is simply applying the scientific principles to establish causation between changes to product and their outcomes. This topic has become more relevant in the past decade as products have become more complex and product managers have had to continually deliver incremental value. Running experiments adds a structured approach to discovering unbiased learnings and uncovering the real cause to changes in metrics, even when they are too small to be measured independently.

    Read more: https://productcoalition.com/the-ultimate-guide-to-experimentation-for-product-teams-13bae40db313

  • Building a Culture of Experimentation
    August 10, 2023

    Building a Culture of Experimentation

    Booking.com runs more than 1,000 rigorous tests simultaneously and, by my estimates, more than 25,000 tests a year. At any given time, quadrillions (millions of billions) of landing-page permutations are live, meaning two customers in the same location are unlikely to see the same version. All this experimentation has helped transform the company from a small Dutch start-up to the world’s largest online accommodation platform in less than two decades.

    Read more: https://hbr.org/2020/03/building-a-culture-of-experimentation

  • August 8, 2023

    Leaky Abstractions In Online Experimentation Platforms

    Online experimentation platforms abstract away many of the details of experimental design, and their users do not have to worry about sampling, randomisation, subject tracking, data collection, metric definition and interpretation of results. The rapid adoption of these platforms in the industry might in part be attributed to the ease-of-use these abstractions provide. However, there are common pitfalls to avoid when running controlled experiments on the web, and one needs experts familiar with the entire software stack to be involved in the process.

    Read more: https://booking.ai/leaky-abstractions-in-online-experimentation-platforms-ae4cf05013f9

  • Experimenting with generative AI Apps
    August 7, 2023

    Experimenting with generative AI Apps

    While generative AI has been useful for several years, the performance of the latest generation of large foundation models (like OpenAI’s ChatGPT) has dramatically expanded the number of people building with AI. There are seemingly endless opportunities to build amazing apps.

    Read more: https://www.statsig.com/blog/experimenting-with-generative-ai-apps

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