Evidence & preparation

Evidence & preparation

Engineering note · Part 3

Feature Engineering for Email Evidence: Threads, Participants, Dates and Requests

How useful email features combine semantic text with explicit context, and why missing context should remain visible.

Evidence & preparation

Engineering note · Part 4

Cleaning Email Text Without Changing the Original Evidence

Use derived text for retrieval while preserving original messages, source hashes and a route back to the evidence.

Evidence & preparation

Experiment design · Part 26

Can a Small Classifier Separate Signature Assets from Useful Evidence?

Combine attachment signals without excluding a useful file solely because it is small.

Evidence & preparation

Engineering note · Part 33

From PDF to Searchable Evidence: Text Extraction, OCR and Multimodal Processing

Distinguish a stored file from searchable text, and expose unsupported media processing honestly.

Data Science

Feature Engineering for Longitudinal Behavioural Data

Practical ways to turn event-level histories into trends, volatility, rolling windows and cohort-comparable features.