@inproceedings{pronobis2012icra, author = {Pronobis, Andrzej and Jensfelt, Patric}, title = {Large-scale Semantic Mapping and Reasoning with Heterogeneous Modalities}, booktitle = {Proceedings of the 2012 IEEE International Conference on Robotics and Automation (ICRA)}, year = 2012, address = {Saint Paul, MN, USA}, month = may, doi = {10.1109/ICRA.2012.6224637}, url = {http://www.pronobis.pro/publications/pronobis2012icra}, abstract = {This paper presents a probabilistic framework combining heterogeneous, uncertain, information such as object observations, shape, size, appearance of rooms and human input for semantic mapping. It abstracts multi-modal sensory information and integrates it with conceptual common-sense knowledge in a fully probabilistic fashion. It relies on the concept of spatial properties which make the semantic map more descriptive, and the system more scalable and better adapted for human interaction. A probabilistic graphical model, a chain-graph, is used to represent the conceptual information and perform spatial reasoning. Experimental results from online system tests in a large unstructured office environment highlight the system's ability to infer semantic room categories, predict existence of objects and values of other spatial properties as well as reason about unexplored space.} }