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Zhen Tu

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Who Will Survive and Revive Undergoing the Epidemic: Analyses about POI Visit Behavior inWuhan ...UbiComp 20212021-09-21
Uses a >140,000-POI check-in dataset with two parallel timelines to compare 2019 and 2020 and extracts trends by phase. Visits fall more than 60% on average…
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Personalized Context-aware Collaborative Online Activity PredictionUbiComp / ISWC 20202020-09-12
Builds a user-location-time-activity 4D-tensor and a location-time-POI 3D-tensor, uses Telecom app logs (7 days, ~2000 apps) and Check-in data (3 months, 16…
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