Journal International Journal of Multimedia Information Retrieval Issue 4/2020 Table of Contents ( 5 Articles ) 10-11-2020 | Editorial | Issue 4/2020 State of the journal Michael S. Lew 31-10-2020 | Trends and Surveys | Issue 4/2020 Recent advances in local feature detector and descriptor: a literature survey Khushbu Joshi, Manish I. Patel 28-10-2020 | Trends and Surveys | Issue 4/2020 Recent trends in image watermarking techniques for copyright protection: a survey Arkadip Ray, Somaditya Roy 12-11-2020 | Trends and Surveys | Issue 4/2020 A study of classification and feature extraction techniques for brain tumor detection Vatika Jalali, Dapinder Kaur 26-10-2020 | Regular Paper | Issue 4/2020 MRECN: mixed representation enhanced (de)compositional network for caption generation from visual features, modeling as pseudo tensor product representation Chiranjib Sur