1,085 research outputs found
Design of an RFID-based inventory control and management system : a case study
Author name used in this publication: Jacky S. L. Ting2011-2012 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
Using social network analysis to combat counterfeiting
2013-2014 > Academic research: refereed > Publication in refereed journalAccepted ManuscriptPublishe
Separating Stimulus-Induced and Background Components of Dynamic Functional Connectivity in Naturalistic fMRI
We consider the challenges in extracting stimulus-related neural dynamics from other intrinsic processes and noise in naturalistic functional magnetic resonance imaging (fMRI). Most studies rely on inter-subject correlations (ISC) of low-level regional activity and neglect varying responses in individuals. We propose a novel, data-driven approach based on low-rank plus sparse (L+S) decomposition to isolate stimulus-driven dynamic changes in brain functional connectivity (FC) from the background noise, by exploiting shared network structure among subjects receiving the same naturalistic stimuli. The time-resolved multi-subject FC matrices are modeled as a sum of a low-rank component of correlated FC patterns across subjects, and a sparse component of subject-specific, idiosyncratic background activities. To recover the shared low-rank subspace, we introduce a fused version of principal component pursuit (PCP) by adding a fusion-type penalty on the differences between the columns of the low-rank matrix. The method improves the detection of stimulus-induced group-level homogeneity in the FC profile while capturing inter-subject variability. We develop an efficient algorithm via a linearized alternating direction method of multipliers to solve the fused-PCP. Simulations show accurate recovery by the fused-PCP even when a large fraction of FC edges are severely corrupted. When applied to natural fMRI data, our method reveals FC changes that were time-locked to auditory processing during movie watching, with dynamic engagement of sensorimotor systems for speech-in-noise. It also provides a better mapping to auditory content in the movie than ISC
A financial data mining model for extracting customer behavior
Author name used in this publication: George T. S. Ho2011-2012 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
Hybrid risk management methodology : a case study
Author name used in this publication: Jacky Siu-Lun TingAuthor name used in this publication: Albert Hing-Choi Tsang2008-2009 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
Critical elements and lessons learnt from the implementation of an RFID-enabled healthcare management system in a medical organization
Author name used in this manuscript: S. K. KwokAuthor name used in this manuscript: Albert H. C. Tsang2009-2010 > Academic research: refereed > Publication in refereed journalAccepted ManuscriptPublishe
A hybrid knowledge-based approach to supporting the medical prescription for general practitioners : real case in a Hong Kong medical center
Author name used in this manuscript: S.K. KwokAuthor name used in this manuscript: Albert H.C. Tsang2010-2011 > Academic research: refereed > Publication in refereed journalAccepted ManuscriptPublishe
Enhancing the information transmission for pharmaceutical supply chain based on radio frequency identification (RFID) and internet of things
Author name used in this publication: S.K. Kwok,Author name used in this publication: Albert H.C. TsangRefereed conference paper2010-2011 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe
CASESIAN : a knowledge-based system using statistical and experiential perspectives for improving the knowledge sharing in the medical prescription process
Author name used in this manuscript: S.K. KwokAuthor name used in this manuscript: A.H.C. TsangAccepted ManuscriptPublishe
The study on using passive RFID tags for indoor positioning
Author name used in this publication: S. K. KwokAuthor name used in this publication: George T. S. Ho2010-2011 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
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