User Guide for arXiv Analytics

Search Engine

  • Powered by MongoDB
  • More than 1 million documents
  • As many as 50+ metadata fields
  • 17 single field indexes and 1 text index
  • Supports full-text search, but sometimes slow
  • Accepts JSON to construct complicated query expressions

Metadata Fields

Field Type Examples or Note
id String hep-th/0312171, 1212.5605
version String v2
published ISODate 2003-12-15T20:11:07Z
title String Use regular expressions for match
authors Array::String Edward Witten, E. Witten