**3. Methodology**

The contextual mining of sedentary behaviour consists of: (a) the smartphone environment to mine the sensory data streams; (b) cloud computing infrastructure to make it an acceptable and usable solution; and (c) sedentary behaviour analysis. The proposed model is illustrated in Figure 1, and the details of the sub-components are as follows.

**Figure 1.** The proposed architecture of context mining. MFCC, Mel-Frequency Cepstral Coefficient.
