ASAR 2021 Online Arabic Writer Identification Competition

This paper describes the online Arabic writer identification competition held at ICDAR 2021 Workshop on Arabic and derived Script Analysis and Recognition (ASAR 2021, 4th edition). This first competition of online writer identification uses the ADAB database with online Arabic handwritten words which represent the Tunisian town names. Four systems are participating in the competition. The systems are evaluated on test data that are unknown to the participants. The systems are compared based on the writer identification rate. A detailed description of the systems and the results achieved are presented.