Sumedha Kodithuwakku

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Content based Image Retrieval (CBIR) allows automatically extracting target images according to objective visual contents of the image itself. Representation of visual features and similarity match are important issues in CBIR. Colour and texture features are important properties in CBIR systems. In this paper, a combined feature descriptor for CBIR is(More)
A novel concept on risk identification of social media networks using Hidden Markov Models (HMMs) based on behavioural usage patterns is proposed. Unauthorized users are identified based on characteristic activity sequences. Here, a user behavioural model is built for the social media network clients using their detailed activity logs comprising of usage(More)
Management of a large scale distributed system presents several issues such as managing a network of thousands of nodes, keeping the system up to date when nodes are added, deleted, changed and detecting and recovering from failures. With all these challenges, required features of a distributed system vary from organization to organization. Here we present(More)
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