TY - CONF AU - Singer, P. AU - Helic, D. AU - Hotho, A. AU - Strohmaier, M. A2 - T1 - Hyptrails: A bayesian approach for comparing hypotheses about human trails T2 - 24th International World Wide Web Conference (WWW2015) PB - ACM C1 - Firenze, Italy PY - 2015/may 18 - may 22 CY - VL - IS - SP - EP - UR - http://www.www2015.it/documents/proceedings/proceedings/p1003.pdf DO - KW - 2015 KW - bibsonomy KW - compare KW - human KW - hypotheses KW - hyptrails KW - myown KW - trails KW - web L1 - SN - N1 - N1 - AB - ER - TY - JOUR AU - Panisson, André AU - Barrat, Alain AU - Cattuto, Ciro AU - den Broeck, Wouter Van AU - Ruffo, Giancarlo AU - Schifanella, Rossano T1 - On the Dynamics of Human Proximity for Data Diffusion in Ad-Hoc Networks JO - Ad Hoc Networks PY - 2011/ VL - In Press, Accepted Manuscript IS - SP - EP - UR - http://www.sciencedirect.com/science/article/pii/S1570870511001272 DO - 10.1016/j.adhoc.2011.06.003 KW - dynamics KW - human KW - model KW - networks KW - proximity KW - rfid KW - toread L1 - SN - N1 - ScienceDirect - Ad Hoc Networks : On the Dynamics of Human Proximity for Data Diffusion in Ad-Hoc Networks N1 - AB - We report on a data-driven investigation aimed at understanding the dynamics of message spreading in a real-world dynamical network of human proximity. We use data collected by means of a proximity-sensing network of wearable sensors that we deployed at three different social gatherings, simultaneously involving several hundred individuals. We simulate a message spreading process over the recorded proximity network, focusing on both the topological and the temporal properties. We show that by using an appropriate technique to deal with the temporal heterogeneity of proximity events, a universal statistical pattern emerges for the delivery times of messages, robust across all the data sets. Our results are useful to set constraints for generic processes of data dissemination, as well as to validate established models of human mobility and proximity that are frequently used to simulate realistic behaviors. ER - TY - JOUR AU - Kulkarni, S S AU - Reddy, N P AU - Hariharan, S I T1 - Facial expression (mood) recognition from facial images using committee neural networks JO - Biomed Eng Online PY - 2009/ VL - 8 IS - SP - 16 EP - 16 UR - http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2731770/ DO - 10.1186/1475-925X-8-16 KW - automatic KW - everyaware KW - facial KW - human KW - image KW - mood KW - person KW - recognition KW - subjective L1 - SN - N1 - Facial expression (mood) recognition from facial images using committee neural networks N1 - AB - Facial expressions are important in facilitating human communication and interactions. Also, they are used as an important tool in behavioural studies and in medical rehabilitation. Facial image based mood detection techniques may provide a fast and practical approach for non-invasive mood detection. The purpose of the present study was to develop an intelligent system for facial image based expression classification using committee neural networks.Several facial parameters were extracted from a facial image and were used to train several generalized and specialized neural networks. Based on initial testing, the best performing generalized and specialized neural networks were recruited into decision making committees which formed an integrated committee neural network system. The integrated committee neural network system was then evaluated using data obtained from subjects not used in training or in initial testing.The system correctly identified the correct facial expression in 255 of the 282 images (90.43% of the cases), from 62 subjects not used in training or in initial testing. Committee neural networks offer a potential tool for image based mood detection. ER -