Research Article
Activity Feature Solving Based on TF-IDF for Activity Recognition in Smart Homes
Input: , a set of activity instances | , set of SEF features | | Output: | 1. ; | 2. Assign 0 to , where >=1 and k<=n, j>=1 and j<=m | 3. ; | 4. while(j<=m) | 5. Extract the first activated sensor ; | 6. Extract the last activated sensor ; | 7. ; ; | 8. while(k<=n) | 9. if is same to then | 10. ++; | 11. end if | 12. if is same to then | 13. ++; | 14. end if | 15. ++; | 16. end while | 17. end while | 18. return |
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