METHOD, PROGRAM AND SERVICE FOR ANONYMOUSLY TESTING LOCATION BASED FOR PREFERENCE BASED PROXIMITY BETWEEN MOBILE SUBSCRIBERS BY SEPARATE TRANSFER AND EVALUATION OF PARAMETERS

摘要

Described is a way for computing proximity (location-based proximity or preference-basedproximity) between mobile wireless subscribers (who use different services)without either divulging their location/preference to the other (preservationof privacy). Privacy is kept by providing location/preference informationin steps, along with an evaluation function. The services receive partial resultsand then locally compute the final result, or proximity. The term proximity includesnot just physical proximity but also multi-dimensional data such as preferenceprofiles and vectors (e.g., an affinity for baseball, apple pie, and ballroomdancing.).