// Simplified and altered page rank
func WeightTags(s *session.Session) {
s.IncrementState()
tags := s.GetHashtagCursor()
goodWeight := 1.0 / s.GetHashtagSize(true)
badWeight := -1.0 / s.GetHashtagSize(false)
for {
key, err := tags.Next(nil)
if err != nil {
log.Println(err)
break // No further entities match the query.
}
hashtag := s.Hashtag(key.StringID())
log.Println(hashtag.Name)
processTags(s, goodWeight, hashtag.Beneficiaries)
processTags(s, badWeight, hashtag.Victims)
}
s.SetTopTags()
// Move on
s.IncrementStep()
s.StopProcessing()
}
func processTags(s *session.Session, weight float64, tags []string) {
weight /= float64(len(tags))
for _, next := range tags {
h := s.Hashtag(next)
h.Value += weight
s.SaveHashtag(h)
}
}
func CrawlTags(s *session.Session, positive bool) {
keys := s.GetPeopleCursor(positive, utils.MAXREQUESTS*s.GetState())
s.IncrementState()
total := 0
size := 0
for {
key, err := keys.Next(nil)
total += 1
if err != nil {
if total < utils.MAXREQUESTS {
s.IncrementStep()
}
break // No further entities match the query.
}
media := http.GetMedia(s, key.StringID()).Data
captured := len(media) - 1
for i := 0; i < 3 && i < captured; i++ {
tagCount := len(media[i].Tags)
lim := 5
for j, tag := range media[i].Tags {
if tag == "" {
continue
}
if j >= lim {
break
}
h := s.Hashtag(tag)
for k := 0; k < lim && k < tagCount; k++ {
if j == k {
continue
}
if tag == media[i].Tags[k] {
lim += 1
media[i].Tags[k] = ""
continue
}
if positive {
h.Beneficiaries = append(h.Beneficiaries, media[i].Tags[k])
} else {
h.Victims = append(h.Beneficiaries, media[i].Tags[k])
}
}
s.SaveHashtag(h)
size += 1
}
}
}
s.IncrementSize(size, positive)
s.StopProcessing()
}