Laura Halacheva
Data Science Developer

Laura Halacheva

Data science lead for Teva Pharmaceuticals.
Work with Laura Work with a Data Science Developer

About

Laura Halacheva is a data scientist with experience in data modeling, statistics, and machine learning, both theoretical and applied. She has wide experience with applications in various domains, including medical data analysis, natural language processing, conversational models, and e-commerce. At Ontotext, she led the data science of the R&D department. Her clients include MobiBiz, Canadian Heritage Information Network (CHIN), and more.

Employment

2 roles
Jun 2018 - Present 7 years 11 months
Data Science Specialist
Independent
  • Led projects in various industries, including conversational AI, document analysis, retail, and credit risk assessment. Also experienced with applications in various domains, including medical data analysis, natural language processing, conversational models, and e-commerce. 
  • Clients: MobiBiz, Canadian Heritage Information Network (CHIN), and more.
Apr 2012 - May 2018 6 years 1 month
Lead Data Scientist, Text Analysis
Ontotext

Ontotext is a technology company specializes in semantic platforms that identify meaning across unstructured data.

  • Worked as the lead data scientist of the R&D department.
  • Developed machine learning models in Edlin, an in-house library for NLP written in Java; methods for domain adaptation; methods for automated feature selection; methods for optimization of F-measure. Models were linear or SVM, for classification and sequence classification.
  • Built a machine learning model for classification of tweets as either Rumor/Not Rumor. Model implemented in R, integrated in a Kafka pipeline supported by Ontotext.
  • Worked with DBpedia as an RDF database, such as for the food and drink project; very familiar with its structure, including pages, categories, subcategories, lists, topics, parallel languages, and respective coverage.
  • Experienced with automated and semi-automated integration of various RDF resources, such as DBpedia and Geonames.

Education

Sep 1999 - Jun 2003 3 years 9 months
BSc, Computer Science
University of Bucharest

Portfolio

1 item