Industrial Technology Research Institute

Tsinghua University

National Chengchi University

Arbee L P Chen

Lun-Chia Kuo

Guan-Rong Lin

Yao-Chung Fan

En-Tzu Wang

Jin-Hsiung Shen

A wireless sensing system and a method thereof are provided. The wireless sensing system includes: a data processing center; and a first sensor module for processing a first source data into a first dynamic counting sketch data structure. The first dynamic counting sketch data structure has a bit length determined based on the first source data. The data processing center estimates the first source data based on the first dynamic counting sketch data.

Wireless sensing system and method thereof

A wireless sensor network and data sensing method thereof are provided. A prediction model is established according to sensed data. When statistical value of the sensed data is within a user allowable range, the average value of the sensed data is returned to a user based on the prediction model. Alternatively, when the statistical value of the sensed data is beyond the user allowable range, actually sensed data is returned to the user based on the prediction model. In addition, the prediction model may further be dynamically updated according to subsequently received sensed data.

Wireless sensor network and data sensing method thereof

A method for processing multiple continuous Top-K queries, which is performed between a master server and multiple of slave servers, including steps of: a first step, for arbitrarily selecting the multiple of slave servers and querying and counting up K of accumulated values of which are recorded at most; a second step, for calculating every two adjacent values which have been sent from the same servers to obtain an average value as a threshold; and a third step, for measuring variations of an upper bound and a lower bound for each of the values by using the threshold, and reporting to the master server at a time of the value being in excess of the upper bound or lower than the lower bound for each of the values.

Method for processing multiple continuous Top-K queries

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Taipei, Taiwan

Arbee L P Chen