FRODO

(backronymed as Frequency Registry Of Dictionary Objects)

FRODO is a frequency database for corpus metadata and word forms, exposed as an HTTP JSON API service.

Key Features

• Imports NoSkE and SketchEngine vertical corpus files
• Uses MariaDB (MySQL) as the data backend
• Provides absolute, IPM, and ARF frequency information for each word form
• Supports two-level lemmatization (see CNC Wiki)
• Enables fast exploration of corpus structure (e.g., "Show all media types and authors when only fiction is selected")
• Searches for all (sub)lemmas containing a given word form, plus all their other forms
• Supports general n-grams, not limited to words

Use Cases

At the CNC, FRODO is integrated with several applications:

• KonText
  • Query suggestions
  • Interactive subcorpus text type selection
• Word at a Glance
  • Fast word overview
  • Finding words with similar frequency (ARF)
  • Retrieving a lemma's word forms

For more information, see API.md.

API

See API.md 🚧

Building the Project

1. Clone the repository: git clone --depth 1 https://github.com/czcorpus/frodo.git
2. Install dependencies: go mod tidy
3. Build: make