Mapping Hindi-English Text Re-use Document Pairs

An approach to find the most probable English source document for the given Hindi suspicious document is presented. The approach does not involve any complex method of Machine Translation (MT) as a language normalization pre-processing step, rather it relies on standard cross-language resources available between Hindi-English and calculates the similarity using the Okapi BM25 model. We also present the further improvements in the system after the analysis and discuss the challenges involved. The system is developed as a part of CLiTR competition and uses the CLiTR-Dataset for the experimentation. The approach achieves the recall of 0.90 the highest and F-measure of 0.79 the 2 highest reported on the Dataset.