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Jason Lau

Founder of SophiArch, teaching applied ML and LLM engineering to working professionals. lms.sophiarch.com

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Your RAG Pipeline Doesn't Have an Accuracy Problem - It Has an Evaluation Problem
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Your RAG Pipeline Doesn't Have an Accuracy Problem - It Has an Evaluation Problem

#llm #rag #evaluation #machinelearning
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6 min read
Clustering Isn't Discovery - It's a Hypothesis You Still Have to Test
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Clustering Isn't Discovery - It's a Hypothesis You Still Have to Test

#machinelearning #unsupervisedlearning #clustering #datascience
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5 min read
You Don't Need a Math PhD for Data Science — You Need to Stop Skipping the Boring Step
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You Don't Need a Math PhD for Data Science — You Need to Stop Skipping the Boring Step

#datascience #careerchange #statistics #datacleaning
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4 min read
The Most Dangerous Phrase in Analytics Is "The Data Speaks for Itself"
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The Most Dangerous Phrase in Analytics Is "The Data Speaks for Itself"

#datascience #statistics #datavisualization #analytics
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6 min read
The 3 Kinds of Data Leakage That Make Your Model Lie to You
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The 3 Kinds of Data Leakage That Make Your Model Lie to You

#machinelearning #python #scikitlearn #datascience
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5 min read
Your AI's EDA Looks Right. Here's How to Tell When It Isn't.
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Your AI's EDA Looks Right. Here's How to Tell When It Isn't.

#datascience #python #pandas #ai
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4 min read
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