Math Formula Retrieval

This repo contains front-end and backend of math formula retrieval system including text and formula index building and searching.

Project Structure

• Math-search-front includes front-end of our system using Angular JS.
• Lucene was used for building index and ranking documents(TF-IDF Model).
• Math formula(Latex format) was parsed as XML and the tree sub-structure was built on it, detailed information can be found in formula-server.

Motivation

• Mathematical formulae are important means for dissemination and communication of scientific information.
• Non-alphabetical symbols that are not understood by current search systems.
• Terms are either meaningless or improperly read and processed by current systems; e.g.
• Current search systems are not equipped to recognize those structure when searching.

Method

• We treat every formula inside documents as single indexed file.
• The ranking algorithms is . . It indicated the matched level between the indexed formula and searched formula.

Demo

Searched Formula

Matched Top3 Formula

Rank1

Rank2

Rank3

Contributor

Deng Pan

Yuchen Deng

Sichao Xue

Reference

Gao, Liangcai, et al. "The Math Retrieval System of ICST for NTCIR-12 MathIR Task." NTCIR. 2016.