RT Research Data T1 Crime Hot Spot Forecasting with Data from the Pittsburgh (Pennsylvania) Bureau of Police, 1990-1998 A1 Gorr, Wilpen L. A2 Olligschlaeger, Andreas LA English PP Erscheinungsort nicht ermittelbar PB [Verlag nicht ermittelbar] YR 2015 UL https://krimdok.uni-tuebingen.de/Record/1840045590 AB This study used crime count data from the Pittsburgh, Pennsylvania, Bureau of Police offense reports and 911 computer-aided dispatch (CAD) calls to determine the best univariate forecast method for crime and to evaluate the value of leading indicator crime forecast models. The researchers used the rolling-horizon experimental design, a design that maximizes the number of forecasts for a given time series at different times and under different conditions. Under this design, several forecast models are used to make alternative forecasts in parallel. For each forecast model included in an experiment, the researchers estimated models on training data, forecasted one month ahead to new data not previously seen by the model, and calculated and saved the forecast error. Then they added the observed value of the previously forecasted data point to the next month's training data, dropped the oldest historical data point, and forecasted the following month's data point. This process continued over a number of months. A total of 15 statistical datasets and 3 geographic information systems (GIS) shapefiles resulted from this study. The statistical datasets consist of K1 Crime K1 Crime Mapping K1 crime patterns K1 forecasting models K1 geographic distribution K1 Geographic information systems K1 Mapping K1 Police Effectiveness K1 police records K1 Prediction K1 Trends K1 Forschungsdaten DO 10.3886/ICPSR03469.v1