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Understanding test coverage and its limits.
  • Dr. Ingrid Falk-Weller
  • May 4, 2026
  • (0)
  • Software Engineering

Coverage Measures Execution, Not Verification

I remember sitting in a windowless war room three years ago, staring at a dashboard that proudly displayed 98% code coverage while our distributed consensus module was actively melting down in production. We had hit every line, every branch, and…

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Expert professional managing research data provenance.
  • Dr. Ingrid Falk-Weller
  • May 4, 2026
  • (0)
  • Research Practice

Provenance Matters More Than Volume

I remember sitting in a windowless basement lab five years ago, staring at a directory named `final_results_v3_USE_THIS_ONE.zip` and feeling a profound sense of dread. I had spent months on a distributed consensus experiment, only to realize that my metadata was…

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Automated property based testing for counterexamples.
  • Dr. Ingrid Falk-Weller
  • May 1, 2026
  • (0)
  • Software Engineering

Describe the Rule and Let the Machine Find the Counterexample

I remember sitting in a windowless server room three years ago, watching a distributed consensus module fail for the fourteenth time that hour. I had written hundreds of unit tests, each one passing with a satisfying green checkmark, yet the…

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XGBoost and LightGBM compared implementation diagram.
  • Dr. Ingrid Falk-Weller
  • May 1, 2026
  • (0)
  • Machine Learning

Two Implementations of the Same Idea With Different Priorities

I spent three months in a graduate lab once, chasing a 0.2% accuracy bump by blindly swapping libraries, only to realize I hadn’t actually understood why the loss curves were behaving so erratically. It’s a frustrating cycle: you see a…

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Documenting experimental setup with version numbers.
  • Dr. Ingrid Falk-Weller
  • April 30, 2026
  • (0)
  • Research Practice

Record the Version Numbers or Repeat the Work

I remember sitting in a dimly lit lab three years ago, staring at a cluster of GPUs that were producing results so suspiciously perfect they felt like a hallucination. I spent six hours trying to reconstruct the exact environment state—the…

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Kernel reordering block devices and io scheduling.
  • Dr. Ingrid Falk-Weller
  • April 27, 2026
  • (0)
  • Systems

The Kernel Reorders Your Writes for the Disk’s Benefit

I remember sitting in a windowless server room during my first industry residency, staring at a dashboard where latency spikes were climbing like a fever chart. My supervisor insisted we just “throw more NVMe drives at the problem,” a classic…

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Comparing algorithms for minimum spanning trees.
  • Dr. Ingrid Falk-Weller
  • April 27, 2026
  • (0)
  • Algorithms

Two Algorithms, One Answer, Different Data Structures

I remember sitting in a windowless lab during my second year of grad school, staring at a massive, inefficiently routed network topology that was eating up our cluster’s bandwidth like it was free. My advisor kept pointing to a textbook…

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Topological sorting explained with task dependencies.
  • Dr. Ingrid Falk-Weller
  • April 26, 2026
  • (0)
  • Algorithms

Ordering Tasks That Only Partly Depend on Each Other

I remember sitting in a windowless lab during my PhD, staring at a build system that had just deadlocked itself, surrounded by the smell of ozone and stale coffee. I was trying to debug a complex dependency chain, and every…

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Developers sharing code and data for verification.
  • Dr. Ingrid Falk-Weller
  • April 25, 2026
  • (0)
  • Research Practice

Published Code Gets Checked, Which Is the Point

I remember sitting in a dimly lit lab three years ago, staring at a “reproducible” repository that was little more than a graveyard of broken dependencies and a single, cryptic Python script. The authors had checked the box for sharing…

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Using test doubles and mocks correctly.
  • Dr. Ingrid Falk-Weller
  • April 24, 2026
  • (0)
  • Software Engineering

Mocking Your Own Logic Tests Nothing but the Mock

I remember sitting in a windowless lab during my postdoc, staring at a test suite that took forty minutes to run because every single unit test was trying to establish a real connection to a distributed database. I was chasing…

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