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Gwendydd Research Gwendydd Research
Books, a wand, and several bottles of colorful magical ingredients arranged on a shelf.

Practical magic for recommendations & relevance

Gwendydd Research is an independent research lab and consultancy founded by Karl Higley and Clara Bennett.

After years of crafting recommendation systems and personalization experiences, we've noticed that much of the community's practical wisdom lives tucked away in private archives and institutional spellbooks. Only a few select pages ever make it into the light.

We created Gwendydd to share the notes on the useful knowledge, hard-won lessons, and serendipitous discoveries we'd want scattered across our own workbench.

A Recommancer's Pocket Grimoire

Spellbook laid open with a cloud of starry moonlit night rising from its pages.

A publication for the craft of recommendation magic, written by practitioners who've conjured recommendation systems for millions of users and lived to tell the tale.

Within these pages you'll find:

  • Practical spells for untangling real-world recommendation problems
  • Thoughtful notes on research papers worthy of a place in your library
  • Experiments, case studies, and lessons gathered from our workshop
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