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thesisintroduction.org

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+:ID: c4a0d60f-49d3-4185-8c5b-f8a5a10a2ccc
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+#+title: thesis/introduction
+#+filetags: :project: :knowledge: :introduction:
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+:PROPERTIES:
+:ID: thesis-introduction
+:END:
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+#+title: thesis/introduction
+#+filetags: :project: :knowledge: :introduction:
+
+Chapter 1 of the BGU MSc thesis on ROLL. Written last, after Ch. 2–4 are stable.
+Parent: [[id:6294e2be-6189-4473-b363-a1dd9a75fb9b][thesis]]
+
+** Guidelines
+
+- Target length: 4–6 pages
+- Write last — contributions list and roadmap must match what the thesis actually delivers
+- Structure: Hook → Problem statement → Contributions → Roadmap
+- Do NOT explain the method — introduction is a promise, not a delivery
+
+** Structure
+
+1. *Hook* (~1–2 paragraphs) — concrete application where a wrong operating point is costly.
+   Candidates from existing prose: medical screening, fraud detection, astronomy/microscopy pipelines.
+   Make the reader feel the problem before naming it.
+2. *Problem statement* (~1 paragraph) — class imbalance + why accuracy is the wrong metric +
+   the TPR@FPR objective in one crisp sentence.
+3. *Contributions* (bulleted list, ~5 items) — what ROLL does that prior work does not:
+   - Differentiable TPR@FPR loss (and FPR@TPR by label/score symmetry)
+   - Gaussian, Beta, KDE instantiations with closed-form gradients
+   - Gradient-balance property (updates independent of class-size ratio)
+   - Gradient-locality property (threshold-focused gradient mass)
+   - Empirical evaluation on KEEL benchmark + larger datasets
+4. *Roadmap* (~1 paragraph) — one sentence per chapter, matching final chapter titles exactly.
+
+** Gotchas
+
+- Roadmap must exactly match final chapter titles — write it last
+- Don't use the inseparability / cascade-classifier tangent from the old draft; it dilutes the argument