Determining Geographic Location of a Mobile Device Using Sensor Data

In certain embodiments, a mobile device includes a sensor, one or more processors, and a memory. The memory stores computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform operations including determining a first geographic location based on wireless signals received as part of a wireless-based mobile device positioning system. The operations include accessing a geographic database that includes data representing a number of geographic locations and properties associated with the geographic locations, and a mapping between measureable values of a type and particular geographic locations. The operations include determining, using the geographic database, candidate geographic locations for adjusting the first geographic location. The operations include accessing a particular value of the type determined according to a measurement of the sensor and determining a second geographic location based on the candidate geographic locations and on the particular value and the mapping.