Fine-Grained Indoor Location-Based Social Network

摘要

A system for providing a fine-grained indoor location-based social network (LBSN), the invention leverages the crowd-sensed data collected from a plurality of users' mobile devices during the check-in operation and knowledge extracted from current LBSNs to associate a place with its name and semantic fingerprint. This semantic fingerprint is used to obtain a more accurate list of nearby places as well as automatically detect new places with similar signatures. A novel algorithm for handling incorrect check-ins and inferring a semantically-enriched floorplan is proposed as well as an algorithm for enhancing the system performance based on the user implicit feedback.

主权项

1. A system for providing a find-grained location-based service for a mobile computing platform comprising:
software, running on said mobile computing platform, said software performing the functions of:
determining if said mobile computing platform is stationary at a particular location;sampling data collected from one or more sensors located on said mobile computing platform, in accordance with a privacy policy;sending said sampled data to a server;receiving, from said server, a list of one or more likely venues;allowing a user to select a venue from said list of one or more venues and sending said selection to said server.