Cross Domain Lexicon Transfer -A Case Specific to Application in Banking Domain
B. V. Nagendra, Kumar Chandar S, Jay Bharateesh Simha, K S Manu, K V Kirubanand, Yash Kaushal · 2025
This study demonstrates the development of the financial domain lexicon and the implementation of the same in the banking sector. The study compared the working of Financial Naïve Bayes Lexicon (FNB Lex) developed with 533 quarterly Earnings Call Transcript (ECT) of 16 software companies, with standard available dictionaries like VADER and Loughran-McDonald. The study showed VADER's poor discriminatory power and Loughran-McDonald with satisfactory performance. FNB Lex lexicon performed better and provided better lift over VADER and Loughran-McDonald with improved precision, recall and F1-score.