Olga Kellert

Dr. Olga Kellert serves as a Lecturer in the Department of Romance Philology within the Faculty of Humanities at the University of Göttingen, where she conducts interdisciplinary research at the intersection of sociolinguistics, computational linguistics, and historical Romance linguistics. Her work bridges traditional linguistic analysis with cutting-edge digital methodologies, particularly focusing on language variation in social media contexts and diachronic syntactic change.

Her research encompasses three primary domains: (1) Sociolinguistic analysis of code-switching and language variation using geolocated social media data, particularly examining Spanish-French interactions in Quebec and Spanish-Italian dynamics in South America; (2) Computational approaches to sentiment analysis and linguistic modeling, with emphasis on syntax-aware NLP systems; (3) Historical evolution of quantificational structures in Romance languages, especially indefinites and free choice items across Old and Modern Italian, Spanish, and Catalan. Current projects include the sociocomputational assessment of belief states among vulnerable indigenous groups in Latin American crises (funded through international collaboration with Mexico, Ecuador, Peru, and Austria) and geospatial analysis of urban linguistic variation using Twitter data.

Her publication trajectory reveals a strategic evolution from foundational work in Romance syntax and prosody toward increasingly computational methodologies, with recent publications heavily featuring NLP applications, geotagged linguistic analysis, and interdisciplinary crisis communication research. This shift reflects broader trends in digital humanities while maintaining deep roots in Romance linguistic theory.

• Habilitation Completion Grant from the Faculty of Humanities, University of Göttingen

Dr. Kellert actively supervises student project work on language mixing in social media contexts and collaborates extensively through the University of Göttingen's CRC 'Textstrukturen' research center. Her grant portfolio demonstrates significant international collaboration, particularly with Latin American institutions on crisis communication projects and European partners on historical linguistics initiatives. Current funding includes DFG support for 'Quantification in Old Italian' and international partnerships for sociolinguistic crisis response research.

Her research operates within the Collaborative Research Center 'Textstrukturen' at the University of Göttingen, where she contributes to interdisciplinary teams combining linguistic theory, computational methods, and sociocultural analysis. Recent projects involve cross-institutional teams spanning Mexico, Ecuador, Peru, Austria, France, and Italy, with particular emphasis on community-engaged research with indigenous populations in Latin America.