The outbreak of COVID-19, a little more than 2 years ago, drastically affected all segments of society throughout the world. While at one end, the microbiologists, virologists, and medical practitioners were trying to find the cure for the infection; the Governments were laying emphasis on precautionary measures like lockdowns to lower the spread of the virus. This pandemic is perhaps also the first one of its kind in history that has research articles in all possible areas as like: medicine, sociology, psychology, supply chain management, mathematical modeling, etc. A lot of work is still continuing in this area, which is very important also for better preparedness if such a situation arises in future. The objective of the present study is to build a research support tool that will help the researchers swiftly identify the relevant literature on a specific field or topic regarding COVID-19 through a hierarchical classification system. The three main tasks done during this study are data preparation, data annotation and text data classification through bi-directional long short-term memory (bi-LSTM).

CHRIST Delhi NCR Ghaziabad India

Department of Applied Mathematics and Scientific Computing Indian Institute of Technology Roorkee Roorkee Uttarakhand India

Department of Computer Science VŠB Technical University of Ostrava Ostrava Czechia

Machine Intelligence in Medicine and Imaging Lab Mayo Clinic Phoenix AZ United States

Mehta Family School for Data Science and Artificial Intelligence Indian Institute of Technology Roorkee Roorkee Uttarakhand India

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