Alina Ostrowski

Currently working as a Research Assistant at the German Aerospace Center (DLR) and having a master's degree in Computational Linguistics with strong knowledge in classical machine learning and Large Language Model approaches. Hands-on experience in using Cloud architectures like Azure for implementing complex tasks.

Semi-Supervised Word Sense Disambiguation: 

Comparison of  supervised methods with unsupervised methods for the disambiguation of French verbs from the FSE (FrenchSemEval) corpus. Implementation of a basic and a constraint K-means clustering algorithm. Evaluation of the usage of unlabeled data in constraint K-means clustering.

Prediction of gender of derived instrument nouns in French: 

Evaluation of the possibility of using word embeddings in order to predict the gender of instrument nouns based on the verb. 

Conversational Chatbot for Second Language Learning: 

Implementation of a conversational chatbot for different level German Second Language Learners. 

Transition Parsing:

Modification of an automatic parser by transition from a  probability-based model to a reward-based model using reinforcement learning.