NextWord

Fady Seleem
July 25, 2026

Predict the next word before the user has to type it.

Live application:
https://fadybseleem.shinyapps.io/next-word-predictor/

The Opportunity

Typing is repetitive. Prediction should feel effortless.

  • People repeatedly type familiar phrases across messages, searches, and forms.
  • A useful suggestion saves attention as well as keystrokes.
  • The product challenge is balancing accuracy, speed, and model size.

NextWord turns a multi-word phrase into an immediate, understandable suggestion.

The Product Experience

One input. One clear prediction.

  1. The user enters a phrase such as “thank you for your”.
  2. The app normalizes the text while preserving meaningful word order.
  3. The model returns “support” and displays the completed phrase.

Designed for trust

  • Explanation of how the prediction was selected
  • Guaranteed fallback when a phrase is unfamiliar
  • Instructions and limitations visible inside the app

The Prediction Engine

Specific when possible, resilient when necessary

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The model first uses the richest available context, then backs off gracefully.

Why It Is Ready

A practical foundation for a smarter writing product

  • Real language: trained on English blogs, news, and Twitter text
  • Lightweight: compact lookup tables fit hosted Shiny memory limits
  • Fast: prediction requires table matching, not expensive computation
  • Extensible: ranking can later incorporate personalization and recency

The ask

Approve a focused validation round measuring top-1/top-3 accuracy, response time, and user acceptance—then iterate toward personalized suggestions.

Try it: https://fadybseleem.shinyapps.io/next-word-predictor/