Discurso informal matemático: enfoques, métodos, técnicas y tendencias. - Raúl Ernesto Gutiérrez de Piñerez Reyes; Juan Francisco Díaz-Frías (Rev. Avances en Sistemas Informática, 2011)

Preprocessing of informal mathematical discourse in context ofcontrolled natural language. - Raúl Ernesto Gutiérrez de Piñerez Reyes; Juan Francisco Díaz-Frías (CIKM, 2012)

Building a Discourse Parser for Informal Mathematical Discourse in the Context of a Controlled Natural Language. - Raúl Ernesto Gutiérrez de Piñerez Reyes; Juan Francisco Díaz-Frías (CICLing (1), 2013)

Informal Mathematical Discourse Parsing with Conditional Random Fields. - Raúl Ernesto Gutiérrez de Piñerez Reyes; Juan Francisco Díaz-Frías (SLSP, 2014)

Using Probabilistic Parsers to Support Salsa Music Composition. - Brayan Rodríguez; Raúl Gutiérrez de Piñerez; Gerardo M. Sarria M. (MCM, 2017)

A Deep Learning Approach for Negation Detection from Product Reviews written in Spanish. - Orlando Montenegro; Oswaldo Solarte Pabón; Raúl Ernesto Gutiérrez de Piñerez Reyes (CLEI, 2021)

CNER: A tool Classifier of Named-Entity Relationships. - Jefferson A. Peña Torres; Raúl Ernesto Gutiérrez de Piñerez (CoRR, 2024)