Spatial Information Technology: Past, Present, Future -- Location Extraction from Twitter Messages Using a Bidirectional Long Short-Term Memory Neural Network with Conditional Random Field Model -- Automatic Processing of Sentinel-2 Data for Monitoring Biodiversity in a User-Defined Area: An Example from Mount Kilimanjaro National Park -- 3D Urban Growth Simulation using Human Settlement Capacity SLEUTH Model (HSCS) -- Quality Assessment of Worldview-3 Stereo Imagery Derived Models over Millennial Olive Groves -- Integration of New Data Layers to Support the Land Cover and Use Information System of Spain (SIOSE): An Approach from Object-oriented Modelling -- Analysis of Public Transport Mobility Data: A System for Sharing and Reusing GIS Database Queries -- Geolocation Inference using Twitter Data: A Case Study of COVID-19 in the Contiguous United States -- Digital High-scale Food Security Analysis: Challenges, Considerations and Opportunities.