IberLEF 2021 chairs Julio Gonzalo 0 1 2 Universidad Nacional de Educacion a Distancia 0 1 2 Spain. Manuel Montes 0 1 2 Instituto Nacional de Astrof sica 0 1 2 Optica y Electronica 0 1 2 Mexico. Paolo Rosso 0 1 2 Universitat Politecnica de Valencia 0 1 2 Spain. 0 1 2 Emotions 0 1 2 Stance 0 1 2 Opinions 0 1 2 Miguel Angel Alvarez Carmona 0 1 2 Mexico. Angel Ramon Aranda Campos 0 1 2 Mexico. 0 1 2 Automatic Detection of Borrowings (ADoBo) Elena Alvarez-Mellado, USC Information Sciences Institute, USA. Luis Espinosa-Anke, Cardi University, UK. Julio Gonzalo Arroyo, Universidad Nacional de Educacion a Distancia, Spain. Constantine Lignos, Brandeis University , USA. Jordi Porta-Zamorano, Centro de Estudios de la RAE , Spain Emotion classi cation (EmoEvalEs) Arturo Montejo-Raez, Universidad de Jaen, Spain. Salud Mar a Jimenez-Zafra, Universidad de Jaen , Spain. Flor Miriam Plaza-de-Arco , Universidad de Jaen , Spain. M. Dolores Molina-Gonzalez , Universidad de Jaen , Spain Going Beyond Text in Cross-lingual Stance Detection (VaxxS- tance) Rodrigo Agerri, Universidad del Pa s Vasco , Spain. Roberto Centeno , Universidad Nacional de Educacion a Distancia, Spain. Mar a Espinosa, Universidad Nacional de Educacion a Distancia, Spain. Joseba Fernandez de Landa, Universidad del Pa s Vasco , Spain. Alvaro Rodrigo , Universidad Nacional de Educacion a Distancia , Spain 2021 Harmful Information

O ensive Language Detection in Spanish Variants (MeOffendEs) Health-related Information Extraction and Knowledge

MEDical DOcuments PROFessions recognition shared task (MEDDOPROF) Martin Krallinger, Barcelona Supercomputing Center, Spain.

Eulalia Farre-Maduell, Barcelona Supercomputing Center, Spain. Antonio Miranda Escalada, Barcelona Supercomputing Center, Spain. Salvador Lima Lopez, Barcelona Supercomputing Center, Spain. Vicent Briva-Iglesias, Dublin City University, Ireland.

 Humour and Irony

Humor Analysis based on Human Annotation (HAHA 2021) Luis Chiruzzo, Universidad de la Republica, Uruguay.

Santiago Castro, University of Michigan, USA.

Santiago Gongora, Universidad de la Republica, Uruguay.

Aiala Rosa. Universidad de la Republica, Uruguay.

Julie-Anne Meaney, University of Edinburgh, UK.

Rada Mihalcea, University of Michigan, USA.

 Lexical Acquisition IberLEF 2021 Steering Committee IberLEF Program Committee

Horacio Saggion (UPF Barcelona, Spain) Marc-Franco Salvador (Symanto Valencia, Spain) Eric San Juan (IUT STID Avignon, France) Grigori Sidorov (IPN Mexico City, Mexico) Thamar Solorio (UH Houston, U.S.A.) Mariona Taule (UB Barcelona, Spain) Javier Tejada (UCSP Arequipa, Peru) Jose Antonio Troyano (US Sevilla, Spain) Luis Alfonso Uren~a (UJA Jaen, Spain) Antonio Valderrabanos (Bitext Madrid, Spain) Rafael Valencia (UM Murcia, Spain) Juan Velasquez (UCHILE Santiago, Chile) Renata Vieira, PUCRS (Brazil) Jesus Vilares (UDC A Corun~a, Spain) Manuel Vilares (UVIGO Vigo, Spain) Julio Villena (MeaningCloud Madrid, Spain) Dina Wonsever (UDELAR Montevideo, Uruguay)