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added random option for userKeywordWeights

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pythagoraswitch 2018-12-01 10:11:16 +01:00
parent b749d66bac
commit 6899cc5d37
1 changed files with 15 additions and 6 deletions
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21
recommendation_engine.py
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@ -54,14 +54,15 @@ class Engine:
}
if 'gridChange' not in self.state:
self.state['gridChange'] = {
'nextClip': {'locked': True, 'value': 4},
'nextPlaylist': {'locked': False, 'value': 4},
'staySame': {'locked': False, 'value': 8}
'nextClip': {'locked': False, 'value': 5},
'nextPlaylist': {'locked': False, 'value': 8},
'staySame': {'locked': True, 'value': 3}
}
if 'userKeywordsWeights' not in self.state:
self.state['userKeywordsWeights'] = {
'themeTags': {'locked': False, 'value': 0.3},
'characterTags': {'locked': False, 'value': 0.7}
'characterTags': {'locked': False, 'value': 0.7},
'random' : {'locked': False, 'value': True}
}
self.update_keywords()
@ -253,6 +254,14 @@ class Engine:
if playlist["name"] in vids_exclude:
playlists.remove(playlist)
# Generate random weights if random option is chosen in the dashboard:
if userKeywordsWeights['random']:
themeWeights = random.random()
charWeights = 1-themeWeights
else:
themeWeights = userKeywordsWeights['themeTags']
charWeights = userKeywordsWeights['characterTags']
# For each playlist, compute user keyword score by theme and character tags
user_keywords = copy.deepcopy(user.get('keywords', {}))
theme_tags = {k.lower():v for k,v in user_keywords.items() if not k.isupper()}
@ -269,9 +278,9 @@ class Engine:
score[playlist['name']] = random.random() * 0.001
for tag in playlist['tags']:
if tag in theme_tags:
score[playlist['name']] += theme_tags[tag] * userKeywordsWeights["themeTags"]
score[playlist['name']] += theme_tags[tag] * themeWeights
elif tag in character_tags:
score[playlist['name']] += character_tags[tag] * userKeywordsWeights["characterTags"]
score[playlist['name']] += character_tags[tag] * charWeights
# Select highest scoring playlists
playlists = sorted(
playlists,