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Raoul-Gabriel Urma

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Advanced Software Testing for Data ScientistsPyData New York City 20192019-11-04
Uses a Kickstarter dataset and a scikit-learn pipeline of transformers (category extraction, currency normalization to USD) and shows concrete bugs found by…
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Adv. Software Testing for Data ScientistsPyData London 20192019-07-12
Workshop demonstrates concrete practices: use pytest for low-boilerplate unit tests, numpy/pandas-specific assertions like pandas.assert_frame_equal…
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Introduction to Big Data Processing using Spark and PythonPyData NYC 20182018-10-11
Hands-on workshop that walks from Hadoop concepts to running PySpark code: it explains batch vs streaming, shows RDD and DataFrame patterns (map, flatMap…
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Polishing the Diamond: Core Library Improvements in Java 9Devoxx Belgium 20172017-11-06
Live-coded demos show the JShell REPL evaluating expressions and running examples interactively and successfully, not slides. Java 9 adds concise factory…
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Interactively Analyse 100GB of DataPyData London 20172017-05-05
Live demo that interactively analyses a 100GB Open Library dump using Apache Spark on Amazon EMR with an Apache Zeppelin notebook, running the same…
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Pragmatic Functional Refactoring with Java 8Lambda World 20162016-09-30
Shows concrete refactorings from legacy Java to Java 8: replace ad‑hoc find loops with method references and Predicate objects, swap manual null checks for…
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