Fawaz Ansari

Experience

• 

  阿里巴巴集团

  Jul 2021 - Oct 2022

  Data Scientist

  - Worked on Daraz's Knowledge Graph project from the ground up, utilizing advanced techniques like Phrase Mining and Named Entity Recognition (NER) to detect entities. I devised a strategy to establish hypernym/synonym relationships between these entities and integrated them into the query rewrite and relevance modules to enhance search performance.- Devised a novel Query Category Prediction algorithm with a fine-tuned BERT classifier across 3000+ categories achieving an F1-score of 0.83, also proven by human reviews with an 85% accuracy rate.- Leveraged Word2Vec and Edit-distance for misspelled word detection, training a classifier with lexical and positional attributes, and TF-IDF values for effective correction.- Conducted A/B testing on algorithms, enhancing query rewrite framework for optimal search performance.- Deployment pipelines, effectively troubleshooting and resolving production issues through root-cause analysis. Show less

• 

  Vetted

  Oct 2022 - now

  Data Scientist