A computer-implemented method comprising: determining a respective location of each of one or more client devices at a given time, comprising, for each of the one or more client devices: estimating a location of the client device at the given time, comprising: receiving an indication that one or more detectors of a plurality of detectors received one or more wireless signals from the client device at the given time; and estimating the location of the client device based on respective locations of each of the one or more detectors; obtaining an indication of a scheduled allocation of one or more resources at or within a predetermined range of the given time; determining that the estimated location of the client device is proximate to a usage location of the one or more resources; and determining the location of the client device at the given time based on the usage location.