The proliferation of smart gadgets, appliances, mobile devices, PDAs and sensors has enabled the construction of ubiquitous computing environments, transforming regular physical s...
Jalal Al-Muhtadi, Anand Ranganathan, Roy H. Campbe...
This paper proposes a new application framework for group tour guiding services based on RFIDs and wireless sensor network. We consider a sensing field mixed with multiple indepe...
Po-Yu Chen, Wen Tseun Chen, Cheng Han Wu, Yu-Chee ...
Abstract. We present a semantic extension to X.509 certificates that allows incorporating new anonymity signature schemes into the X.509 framework. This fact entails advantages to...
Vicente Benjumea, Seung Geol Choi, Javier Lopez, M...
Abstract. The recent development of location-based services has originated a set of new security services that address their particular security problems. Spatial-temporal certific...
This paper aims to develop a new statistical measure to identify significant correlations among multiple events with spatial and temporal components. This new measure, ( , )K r t ,...