Time Series notes

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I have done this course proposed by Kaggle, and I would like to take some notes. The trend component of a time series represents a persistent, long-term change in the mean of the series. We mainly have: Time dependent properties: trends and seasonality. Serial dependent properties: Cycles and lagged series 1. Trends The trend component of a time series … Read more

Class ‘WooCommerce\PayPalCommerce\Compat\PPEC\DeactivateNote’ not found

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I have this error on my WordPress environment while I’m configuring paypal payments on the Woocommerce environment. The problem When i do a check out of a product and click on payment. Once the paypal credentials this error is shown: [INVALID_REQUEST] Request is not well-formed, syntactically incorrect, or violates schema. https://developer.paypal.com/docs/api/orders/v2/#error-INVALID_STRING_LENGTH Logs The Woocommerce log … Read more

Blue Ocean Strategy: bec/bum

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BEC / BUM are concepts extracted from the Blue Ocean Strategy: When should I use it? When you are thinking from a demand-side perspective and want to understand what potentially can come next. Simplified steps: If you are analyzing a competitor, to fulfill this table from its perspective can be also interesting to gain understanding … Read more

Cynefin principles

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The principles are the basis for everything, and Cynefin is not an exception. This is a summary of them: Principle 1: Embrace messy coherence The principle of messy coherence enables us to accommodate much diversity of approaches, methods and tools within Cynefin. Language is an excellent example of messy coherence, or in other worlds coherent … Read more

Examples of Symbiosis

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This comes from a twit from John Cutler, Mutualism  —   both species benefit Commensalism  —   one species benefits, the other is unaffected Parasitism  —   one species benefits, the other is harmed Competition  —   neither species benefits Neutralism  —   both species are unaffected

Scrum + XP + SAFe

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I’m a big fun of Henrik Mårtensson , and this time he comes with a couple of pics that made me laugh. why do you wrap scrum over eXtreme Programming while XP has all you need? and this other one: Why eliminating the short, information rich feedback loops is considered a good thing?

Organised Services Operating Model (OSOM)

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The Organised Services Operating Model (OSOM) is a template operating model to help organisations adopt a service-based approach. More information here: https://osom.guide/ and here: https://stance.consulting/osom/ For questions related to that, you can be in touch with Steve Purkis: https://twitter.com/spurkis You can use it in any context, It uses Wardley Maps. It digs into the operational … Read more

Intermediate Machine Learning, by Kaggle

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Some notes of this course offered by Kaggle, for my poor memory. Cross validation Cross-validation gives a more accurate measure of model quality, which is especially important if you are making a lot of modeling decisions.  Use pipelines for doing cross-validation, you will save a lot of time. XGBoost = Gradient boosting We refer to … Read more