Analysis of requirements for SN monitoring applications in disasters — a case study

After analyzing several practical aspects of relevant data gathering under disaster circumstances, realistic requirements for the search for data under disaster conditions are determined and an optimized algorithm is proposed for the search and collection of data on SNs satisfying the requirements. A system built for performing the search is presented and search results are illustrated and discussed. The key feature of the system is the processing of the collected posts in parallel with the collection process, for speeding up the discovery of relevant information.