def __init__(self, genres=Genre.__genres__):
self.db_manager = DBManager()
self.genres = genres
self.coef = [
0.144, 0.187, 0.037, 0.092, 0.095, 0.086, 0.104, 0.032, 0.078,
0.081, 0.063
]
class Recommender():
def __init__(self, genres=Genre.__genres__):
self.db_manager = DBManager()
self.genres = genres
self.coef = [0.144, 0.187, 0.037, 0.092, 0.095, 0.086, 0.104, 0.032,
0.078, 0.081, 0.063]
@property
def films(self):
return self.db_manager.query_films()
def get_ratings(self, titles):
return self.db_manager.query_films_ratings(titles)
def get_user_classes(self, people):
return self.db_manager.get_user_classes(people)
def get_people_films(self, people):
return self.db_manager.get_people_film(people)
def recommend(self, ratings, people):
genres_ratings = [sum(self.coef[i]*r[i] for r in ratings)
for i in range(0, len(self.genres))]
result = sortedlist([('null', -1)] * 100, key=lambda x: x[1])
lfilms, dfilms = self.get_people_films(people)
if len(people)==1:
banned = [f.id for f in lfilms] + [f.id for f in dfilms]
else:
banned = [f.id for f in dfilms]
session, films = self.films
for f in films:
if f.id not in banned:
frate = sum([float(j)*genres_ratings[i]
for i, j in enumerate(f.genres)])
nb_genres = sum([math.ceil(float(i)) for i in f.genres])
if nb_genres:
frate = frate / nb_genres if nb_genres < 3 else frate / 3
if frate > result[0][1]:
f.mark = 0
result.pop(0)
result.add((f, frate))
session.close()
user_classes = self.get_user_classes(people)
films = {f[0].title: f[0] for f in result}
if len(people) > 1:
for f in lfilms:
f.mark = 0
films[f.title] = f
session, rtgs = self.get_ratings(films.keys())
for rtg in rtgs:
films[rtg.title].mark += user_classes[rtg.class_id]*rtg.rate
result = [(f.title, f.poster, f.id, f.mark) for f in films.values()]
result = sorted(result, key=lambda x: x[3])[-10:]
session.close()
return list(result)
def launch(cls):
cls.sofa_manager = SofaManager()
cls.db_manager = DBManager()
with cls.sofa_manager:
factory = Factory()
factory.protocol = cls
reactor.listenTCP(80, factory)
print("Server started listening.")
reactor.run()
class Recommender():
def __init__(self, genres=Genre.__genres__):
self.db_manager = DBManager()
self.genres = genres
self.coef = [
0.144, 0.187, 0.037, 0.092, 0.095, 0.086, 0.104, 0.032, 0.078,
0.081, 0.063
]
@property
def films(self):
return self.db_manager.query_films()
def get_ratings(self, titles):
return self.db_manager.query_films_ratings(titles)
def get_user_classes(self, people):
return self.db_manager.get_user_classes(people)
def get_people_films(self, people):
return self.db_manager.get_people_film(people)
def recommend(self, ratings, people):
genres_ratings = [
sum(self.coef[i] * r[i] for r in ratings)
for i in range(0, len(self.genres))
]
result = sortedlist([('null', -1)] * 100, key=lambda x: x[1])
lfilms, dfilms = self.get_people_films(people)
if len(people) == 1:
banned = [f.id for f in lfilms] + [f.id for f in dfilms]
else:
banned = [f.id for f in dfilms]
session, films = self.films
for f in films:
if f.id not in banned:
frate = sum([
float(j) * genres_ratings[i]
for i, j in enumerate(f.genres)
])
nb_genres = sum([math.ceil(float(i)) for i in f.genres])
if nb_genres:
frate = frate / nb_genres if nb_genres < 3 else frate / 3
if frate > result[0][1]:
f.mark = 0
result.pop(0)
result.add((f, frate))
session.close()
user_classes = self.get_user_classes(people)
films = {f[0].title: f[0] for f in result}
if len(people) > 1:
for f in lfilms:
f.mark = 0
films[f.title] = f
session, rtgs = self.get_ratings(films.keys())
for rtg in rtgs:
films[rtg.title].mark += user_classes[rtg.class_id] * rtg.rate
result = [(f.title, f.poster, f.id, f.mark) for f in films.values()]
result = sorted(result, key=lambda x: x[3])[-10:]
session.close()
return list(result)
def __init__(self, genres=Genre.__genres__):
self.db_manager = DBManager()
self.genres = genres
self.coef = [0.144, 0.187, 0.037, 0.092, 0.095, 0.086, 0.104, 0.032,
0.078, 0.081, 0.063]
