3 papers
cs.IR2025
Multimodal Search in Chemical Documents and Reactions
Ayush Kumar Shah, Abhisek Dey, Leo Luo +9
We present a multimodal search tool that facilitates retrieval of chemical reactions, molecular structures, and associated text from scientific literature. Queries may combine mole…
cs.IR2024
A Study of PHOC Spatial Region Configurations for Math Formula Retrieval
Matt Langsenkamp, Bryan Amador, Richard Zanibbi
A Pyramidal Histogram Of Characters (PHOC) represents the spatial location of symbols as binary vectors. The vectors are composed of levels that split a formula into equal-sized re…
cs.CV2023
ChemScraper: Leveraging PDF Graphics Instructions for Molecular Diagram Parsing
Ayush Kumar Shah, Bryan Manrique Amador, Abhisek Dey +4
Most molecular diagram parsers recover chemical structure from raster images (e.g., PNGs). However, many PDFs include commands giving explicit locations and shapes for characters,…