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Implementing class imbalance strategies via resampling.
  • Dr. Ingrid Falk-Weller
  • July 27, 2026
  • (0)
  • Machine Learning

Resampling Fixes the Metric and Sometimes Nothing Else

I remember sitting in a windowless server room during my first industry role, staring at a training log that boasted 99.4% accuracy while the model failed to catch a single actual fraud case. It was a gut punch. We had…

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Measuring edit distance and alignment of strings.
  • Dr. Ingrid Falk-Weller
  • July 27, 2026
  • (0)
  • Algorithms

Measuring How Far Apart Two Strings Really Are

I spent three weeks of my PhD trying to implement a “state-of-the-art” sequence matching library, only to realize the authors had glossed over the most critical part: how their cost function actually behaved when the data got messy. Most textbooks…

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Designing readable figures for complex data.
  • Dr. Ingrid Falk-Weller
  • July 25, 2026
  • (0)
  • Research Practice

A Figure That Needs the Text to Explain It Has Failed

I spent three months of my PhD chasing a result that I thought was revolutionary, only to realize during my defense that the committee hadn’t actually seen my data—they had just seen a cluttered, over-engineered mess of a plot. I…

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Visualizing suffix arrays and trees.
  • Dr. Ingrid Falk-Weller
  • July 23, 2026
  • (0)
  • Algorithms

Every Substring of a Text, Indexed Once

I remember sitting in a windowless lab during my postdoc, staring at a profiler that showed my string-matching implementation eating through RAM like it was an all-you-can-eat buffet. I had followed the textbook implementation of a suffix tree to the…

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Visualizing backpressure in pipelines.
  • Dr. Ingrid Falk-Weller
  • July 22, 2026
  • (0)
  • Systems

A Queue Without a Limit Is a Crash With a Delay

I remember sitting in a windowless server room three years ago, watching a dashboard turn a violent shade of crimson while a distributed stream processing job tore itself apart. We had implemented every “state-of-the-art” buffering strategy the white papers suggested,…

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Calibration of probabilities in predictive modeling.
  • Dr. Ingrid Falk-Weller
  • July 20, 2026
  • (0)
  • Machine Learning

A Confident Model Is Not Necessarily a Correct One

I remember sitting in a windowless conference room three years ago, watching a lead researcher present a model that boasted a near-perfect accuracy score, only to watch our entire deployment strategy crumble because the system was fundamentally overconfident. We had…

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Effective rollback strategies for database migrations.
  • Dr. Ingrid Falk-Weller
  • July 20, 2026
  • (0)
  • Software Engineering

Rolling Back a Migration Is Harder Than Rolling Back Code

I remember sitting in a dimly lit server room three years ago, the hum of the cooling fans feeling unusually aggressive, as I watched a “perfectly tested” deployment slowly turn our production database into a graveyard. We had followed every…

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Graph showing roc curves and auc.
  • Dr. Ingrid Falk-Weller
  • July 19, 2026
  • (0)
  • Machine Learning

Auc Measures Ranking, Not Calibration

I remember sitting in a windowless lab during my postdoc, staring at a training log that claimed a near-perfect 0.99 AUC for a fraud detection model. My supervisor was ready to celebrate, but I couldn’t shake the feeling that something…

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Speaker preparing a conference talk.
  • Dr. Ingrid Falk-Weller
  • July 18, 2026
  • (0)
  • Research Practice

Twenty Minutes Holds One Idea, Not Five

I remember sitting in a windowless seminar room in Zurich, watching a researcher spend twenty minutes navigating a labyrinth of hyper-detailed, flickering animations, only to realize he hadn’t actually explained the underlying mechanism of his distributed consensus protocol. He had…

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Efficient string matching algorithms skipping characters.
  • Dr. Ingrid Falk-Weller
  • July 16, 2026
  • (0)
  • Algorithms

Skipping Ahead Instead of Comparing Every Character

I spent three months in a graduate lab trying to optimize a distributed search service, only to realize we were over-engineering a solution for a problem that a simple brute-force approach could have handled in milliseconds. There is this pervasive,…

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