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Alejandro Correa Bahnsen

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How Rappi Uses Graphs to Better Understand Its CustomersAWS Summit Bogotá 20222022-10-04
The talk explains how Rappi uses graph databases and machine learning on Amazon Neptune to better understand customers, tracing the evolution from…
Talk in Spanish on
DeepPhish: Simulating Malicious AIBlack Hat Europe 20182018-12-03
Builds practical models that actually work: a char-level LSTM URL classifier trained on millions of URLs hits ~99% accuracy and runs on mobile; a certificate…
Talk on
DeepPhish: Simulating Malicious AIBlack Hat Europe 20182018-12-03
A char-level RNN/LSTM model runs on URLs and reaches about 98–99% accuracy on ~2 million samples, implemented in Python/Keras and runnable on mobile; a second…
Talk on
CostCla a cost-sensitive classification libraryPyData Berlin 20152015-05-29
CostCla is a Python library (scikit‑learn pandas numpy) that implements example-dependent cost matrices and cost-aware learners and claims big profit gains…
Talk on
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