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- Christine Parent, Stefano Spaccapietra, +9 authors Zhixian Yan
- ACM Comput. Surv.
- 2013
Focus on movement data has increased as a consequence of the larger availability of such data due to current GPS, GSM, RFID, and sensors techniques. In parallel, interest in movement has shifted from… (More)
- Zhixian Yan, Dipanjan Chakraborty, Christine Parent, Stefano Spaccapietra, Karl Aberer
- ACM TIST
- 2013
With the large-scale adoption of GPS equipped mobile sensing devices, positional data generated by moving objects (e.g., vehicles, people, animals) are being easily collected. Such data are typically… (More)
Spatio-temporal data management has progressed significantly towards efficient storage and indexing of mobility data. Typically such mobility data analytics is assumed to follow the model of a stream… (More)
- Zhixian Yan, Vigneshwaran Subbaraju, Dipanjan Chakraborty, Archan Misra, Karl Aberer
- 2012 16th International Symposium on Wearable…
- 2012
Power consumption on mobile phones is a painful obstacle towards adoption of continuous sensing driven applications, e.g., continuously inferring individual's locomotive activities (such as 'sit',… (More)
GPS devices allow recording the movement track of the moving object they are attached to. This data typically consists of a stream of spatio-temporal (x,y,t) points. For application purposes the… (More)
- Tao Feng, Jun Yang, Zhixian Yan, Emmanuel Munguia Tapia, Weidong Shi
- HotMobile
- 2014
Due to the dramatical increase in popularity of mobile devices in the last decade, more sensitive user information is stored and accessed on these devices everyday. However, most existing… (More)
- Jiajun Liu, Zi Xuan Huang, Lei Chen, Heng Tao Shen, Zhixian Yan
- ACM Multimedia
- 2012
Geo-tagged image is an ideal source for the discovery of popular travel places. However, the aspects of popular venues for daily-life purposes like dining and shopping are often missing in the mined… (More)
- Angshu Rai, Zhixian Yan, Dipanjan Chakraborty, Tri Kurniawan Wijaya, Karl Aberer
- SensorKDD '12
- 2012
Complex activities are activities that are a combination of many simple ones. Typically, activities of daily living (ADLs) fall in this category. Complex activity recognition is an active area of… (More)
Sensor network deployments have become a primary source of big data about the real world that surrounds us, measuring a wide range of physical properties in real time. With such large amounts of… (More)
- Zhixian Yan, Emilia Cimpian, Michal Zaremba, Manuel Mazzara
- IEEE International Conference on Web Services…
- 2007
To actually bridge the gap between business perspective and technical perspective, the prerequisite is to provide a comprehensive process modeling framework for business processes. Different from the… (More)