Research Article

When Collective Knowledge Meets Crowd Knowledge in a Smart City: A Prediction Method Combining Open Data Keyword Analysis and Case-Based Reasoning

Table 5

Survey questionnaires.

CategoryItemsScales

ContextWhat is your context currently?
The current temperature is pleasant.7 scales (1: strongly disagree, 7: strongly agree)
The current humidity is pleasant.7 scales (1: strongly disagree, 7: strongly agree)
It is very quiet now.7 scales (1: strongly disagree, 7: strongly agree)
I had a lot of physical activity today.7 scales (1: strongly disagree, 7: strongly agree)
The current brightness is adequate.7 scales (1: strongly disagree, 7: strongly agree)
There is a lot of yellow dust around me.7 scales (1: strongly disagree, 7: strongly agree)

Emotional statusHow about your current emotional status?
I am very angry now.7 scales (1: strongly disagree, 7: strongly agree)
I am very stressed now.7 scales (1: strongly disagree, 7: strongly agree)
I am very depressed now.7 scales (1: strongly disagree, 7: strongly agree)
I am very tired now.7 scales (1: strongly disagree, 7: strongly agree)
I am happy now.7 scales (1: strongly disagree, 7: strongly agree)

DiseasesDo you currently have any of the following symptoms or illnesses?
If so, how serious is it?
Diabetes7 scales (1: not at all, 7: very serious)
Fat7 scales (1: not at all, 7: very serious)
Heart disease7 scales (1: not at all, 7: very serious)
Hyperlipidemia7 scales (1: not at all, 7: very serious)
Cancer7 scales (1: not at all, 7: very serious)
Smoking addiction7 scales (1: not at all, 7: very serious)
Alcohol addiction7 scales (1: not at all, 7: very serious)
Indigestion7 scales (1: not at all, 7: very serious)
Insomnia7 scales (1: not at all, 7: very serious)
Cold7 scales (1: not at all, 7: very serious)
Allergy7 scales (1: not at all, 7: very serious)
Neurosis7 scales (1: not at all, 7: very serious)
Blood pressure7 scales (1: not at all, 7: very serious)
Blood sugar7 scales (1: not at all, 7: very serious)

ProfileGeneral demographic questions for the survey
GenderNominal (1: male, 2: female)
AgeNumeric
WeightNumeric
SolitudeNominal (1: alone, 2: with family, 3: with friend, 4: others)
HobbyNominal (1: have regular hobbies, 2: have irregular hobbies, 3: no hobbies, 4: others)
LocationNominal (1: urban area, 2: rural area)