Table 2.
The amount of Likes one needs to remove (effort) to cloak different users' traits predicted by the LRSVD models
 |
 |
|||||
|---|---|---|---|---|---|---|
| Task | All | TP | FP | All, % | TP, % | FP, % |
Age  37 |
10.3 | 13.0 | 5.8 | 7.7 | 9.7 | 4.4 |
Agreeableness  5 |
5.0 | 6.5 | 5.0 | 2.3 | 3.3 | 2.3 |
Conscientiousness  5 |
4.7 | 6.7 | 4.7 | 3.9 | 4.7 | 3.9 |
Extraversion  5 |
4.4 | 5.9 | 4.3 | 1.9 | 2.4 | 1.8 |
IQ  90 |
6.9 | 16.3 | 4.6 | 4.5 | 9.0 | 3.5 |
IQ  130 |
6.6 | 3.4 | 7.3 | 2.8 | 3.5 | 2.6 |
| Is democrat | 8.5 | 8.5 | 2.0 | 1.7 | 1.7 | 0.3 |
| Is drinking | 6.8 | 7.5 | 3.9 | 2.0 | 2.2 | 1.2 |
| Is female | 10.0 | 10.0 | 5.5 | 1.9 | 1.9 | 1.3 |
| Is gay | 5.7 | 10.9 | 3.2 | 3.8 | 7.4 | 2.2 |
| Is homosexual | 3.5 | 6.6 | 2.9 | 2.4 | 4.7 | 1.9 |
| Is lesbian | 3.1 | 5.4 | 2.8 | 1.9 | 3.5 | 1.7 |
| Is Muslim | 11.7 | 27.8 | 2.9 | 9.6 | 20.2 | 3.9 |
| Is single | 13.7 | 15.5 | 7.9 | 3.4 | 3.8 | 2.1 |
| Is smoking | 8.4 | 9.8 | 5.6 | 2.8 | 3.2 | 1.9 |
Life satisfaction  6 |
5.1 | 7.2 | 4.6 | 2.2 | 3.2 | 2.0 |
Network density  65 |
10.5 | 15.3 | 10.4 | 2.1 | 2.6 | 2.1 |
Neuroticism  5 |
9.1 | 5.7 | 9.2 | 2.2 | 1.6 | 2.2 |
Num friends  585 |
5.0 | 6.6 | 4.2 | 2.1 | 2.5 | 1.9 |
Openness  5 |
6.7 | 7.7 | 6.6 | 2.3 | 2.8 | 2.3 |
| ss belief = 1 | 5.7 | 6.9 | 4.9 | 2.9 | 3.6 | 2.4 |
| ss belief = 5 | 8.3 | 11.1 | 7.8 | 2.1 | 2.5 | 2.1 |
| Uses drugs | 12.2 | 12.1 | 12.2 | 2.7 | 3.3 | 2.2 |
| Mean | 7.5 | 9.9 | 5.6 | 3.1 | 4.5 | 2.3 |
| Median | 6.8 | 7.7 | 4.9 | 2.3 | 3.3 | 2.1 |
Absolute efforts (numbers of Likes removed) are presented in the left panel, and relative efforts (percentages of Likes removed) are in the right panel. For each panel, we show in the first column, the full set of users with data for the trait, in the second column only the TP users, and in the third column only the FP users.
FP, false positive; LRSVD, logistic regression singular-value decomposition; TP, true positive.