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. 2022 Feb 25;15:100417. doi: 10.1016/j.abrep.2022.100417

Table 1.

Description of (i) Facebook user-related features; (ii) Facebook photo-related features; (iii) and psychological variables.

Type Name Brief Description
Facebook user-related features #gender Male or Female
#Friends Number of Facebook friends
%FriendsFemale Proportion of female Facebook friends in user’s network
#Friendshiprequest Number of friendship request by user
#comments Total number of comments (number of comments by user and friends)
#Photos Total number of photos uploaded
#comm/Photos_3months Ratio between number of comments received and number of photos posted in the last 3 months
#UpdatesUserImage Number of profile photos
#Post Number of post by user
#age Date of birth
#RelationshipsStatus Single/ Engaged / No Info
#WallActivities status update, likes to other friends’ post, shared contents, links, posts, new photos, total posts, participating to events
Facebook photo-related features Image context (aesthetic features)
Image content (object features)
  • -

    global image size index (width × height);

  • -

    background: square; portrait, landscape, indoor, outdoor, season (image posted during spring, summer, autumn, winter);

  • -

    channel indices: blurriness, lightness, saturation, intensity;

  • -

    569 content/objects extracted via vgg neural network estimated class probability (e.g., dome, chocolate sauce, dough, pizza, cliff, geyser, lakeside, valley, violin, volleyball, television, scale, radio, pajama, necklace, website etc.;

  • -

    18 objects (yolo neural network outputs, # of elements identified): i.e., train, sheep, bicycle, motorbike, horse, sofa, cat, tvmonitor, bird, pottedplant, boat, dog, bottle, chair, car, person, people n. 1, people n. 3, group of people;

  • -

    185 scenes (from Place165 neural network): e.g., nursing, swimming, home, church, ice, beach, stage, door, art, museum, shop, hospital, elevator, park, office, dressing, veterinarians, beer.

[the complete list of objects is available upon request])
Psychological variables Problematic Facebook Use Total score of problematic Facebook use
Personality traits Big 5: agreeableness, conscientiousness, emotional stability, extraversion, and openness
Self-esteem Total score of self-esteem
Positive Mental Health An overall score of perceived subjective well-being