def queryRanker(self):
#Extract the high frequency queries from the training_queries
HighFreqQueries = []
training_queries = queryClass.load_queries(self.path_train, self.feature_count)
test_queries = queryClass.load_queries(self.path_test, self.feature_count)
#loop through all queries in the training set
for index in training_queries.get_qids():
highQuery = training_queries.get_query(index)
#only keep the frequent queries
if(len(highQuery.__labels__) > self.minFreqCount):
HighFreqQueries.append(highQuery)
print "found "+ str(len(HighFreqQueries)) + " high frequency queries"
#build the query-ranker dictionary
BestRanker = queryRankers()
user_model = environment.CascadeUserModel(self.clickModel)
evaluation2 = evaluation.NdcgEval()
#test_queries = query.load_queries(sys.argv[2], feature_count)
print "Read in training and testing queries"
#for every query learn the best ranker and save it to the dictionary
iter=0
for highQuery in HighFreqQueries:
ran=random.random()
iter=iter+1
if ran<self.threshold:
print str(iter*100/len(HighFreqQueries))+"%"
for i in xrange(self.rankersPerQuery):
learner = retrieval_system.ListwiseLearningSystem(self.feature_count, '-w random -c comparison.ProbabilisticInterleave -r ranker.ProbabilisticRankingFunction -s 3 -d 0.1 -a 0.01')
BestRanker.addInitRank(highQuery.get_qid(),learner.get_solution().w)
q = highQuery
for t in range(self.iterationCount):
l = learner.get_ranked_list(q)
c = user_model.get_clicks(l, q.get_labels())
s = learner.update_solution(c)
e = evaluation2.evaluate_all(s, test_queries)
BestRanker.add(highQuery.get_qid(),learner.get_solution().w)
BestRanker.addList(highQuery.get_qid(),l)
BestRanker.addEval(highQuery.get_qid(),e)
#save the dictionary to a file ('bestRanker.p')
paths=self.path_train.split('/')
name=paths[1]
#pickle.dump(BestRanker, open( "QueryData/"+name+".data", "wb" ) )
pickle.dump(BestRanker, open( "QueryData/"+self.dataset+str(self.iterationCount)+".data", "wb" ) )
test = pickle.load( open( "QueryData/"+self.dataset+str(self.iterationCount)+".data", "rb" ) )
print test.query_ranker.values()
def groupRanker(self):
#Extract the high frequency queries from the training_queries
clusterData=pickle.load(open( self.clusterDataPath, "rb" ) )
queryData= self.queryData
HighFreqQueries = []
training_queries = queryClass.load_queries(self.path_train, self.feature_count)
test_queries = queryClass.load_queries(self.path_test, self.feature_count)
#loop through all queries in the training set
#build the query-ranker dictionary
BestRanker = queryRankers()
user_model = environment.CascadeUserModel(self.clickModel)
evaluation2 = evaluation.NdcgEval()
#test_queries = query.load_queries(sys.argv[2], feature_count)
print "Read in training and testing queries"
#for every query learn the best ranker and save it to the dictionary
iter=0
learner=[0]*len(clusterData.clusterToRanker.keys())
for cluster in clusterData.clusterToRanker:
learner[cluster] = retrieval_system.ListwiseLearningSystem(self.feature_count, '-w random -c comparison.ProbabilisticInterleave -r ranker.ProbabilisticRankingFunction -s 3 -d 0.1 -a 0.01')
for t in range(self.iterationCount):
q = training_queries[random.choice(training_queries.keys())]
temp=(float(np.sum(clusterData.queryToCluster[q.get_qid()])))/(float(len(clusterData.queryToCluster[q.get_qid()])))
temp=int(temp+0.5)
cluster=temp
#cluster=clusterData.queryToCluster[q.get_qid()][0]
iter=iter+1
if iter%200==0:
print str(iter*100/self.iterationCount)+"%"
l = learner[cluster].get_ranked_list(q)
c = user_model.get_clicks(l, q.get_labels())
s = learner[cluster].update_solution(c)
#e = evaluation2.evaluate_all(s, test_queries)
for cluster in clusterData.clusterToRanker:
clusterData.clusterToRanker[cluster]=[learner[cluster].get_solution().w.tolist()]
#save the dictionary to a file ('bestRanker.p')
paths=self.path_train.split('/')
name=paths[1]
#pickle.dump(BestRanker, open( "QueryData/"+name+".data", "wb" ) )
pickle.dump(clusterData, open( "ClusterData/"+self.dataset+".data", "wb" ) )
def __init__(self, queries, feature_count, log_fh, args):
"""Initialize an experiment using the provided arguments."""
self.log_fh = log_fh
self.queries = queries
self.feature_count = feature_count
self.ties = "first"
# construct experiment according to provided arguments
self.result_length = args["result_length"]
self.num_queries = args["num_queries"]
self.query_sampling_method = args["query_sampling_method"]
self.um_class = get_class(args["user_model"])
self.um_args = args["user_model_args"]
self.um = self.um_class(self.um_args)
# set up methods to compare
parser = argparse.ArgumentParser(description="parse arguments of an "
"evaluation method.", prog="evaluation method configuration")
parser.add_argument("-c", "--class_name")
parser.add_argument("-r", "--ranker")
parser.add_argument("-a", "--ranker_args")
parser.add_argument("-i", "--interleave_method")
self.rankers = {}
self.live_methods = {}
self.hist_methods = {}
self.ndcg = evaluation.NdcgEval()
# init live methods
if "live_evaluation_methods" in args:
for method_id, method in enumerate(
args["live_evaluation_methods"]):
self.live_methods[method] = {}
method_args_str = \
args["live_evaluation_methods_args"][method_id]
method_args = vars(parser.parse_known_args(
method_args_str.split())[0])
class_name = method_args["class_name"]
self.live_methods[method]["instance"] = \
get_class(class_name)(method_args_str)
ranker = method_args["ranker"]
ranker_args = method_args["ranker_args"]
self.live_methods[method]["ranker"] = ranker
self.live_methods[method]["ranker_args"] = ranker_args
if not ranker in self.rankers:
self.rankers[ranker] = {}
if not ranker_args in self.rankers[ranker]:
self.rankers[ranker][ranker_args] = {}
# init hist methods
if "hist_evaluation_methods" in args:
for method_id, method in enumerate(
args["hist_evaluation_methods"]):
self.hist_methods[method] = {}
method_args_str = \
args["hist_evaluation_methods_args"][method_id]
method_args = vars(parser.parse_known_args(
method_args_str.split())[0])
class_name = method_args["class_name"]
self.hist_methods[method]["instance"] = \
get_class(class_name)(method_args_str)
ranker = method_args["ranker"]
ranker_args = method_args["ranker_args"]
self.hist_methods[method]["ranker"] = method_args["ranker"]
self.hist_methods[method]["ranker_args"] = \
method_args["ranker_args"]
if not ranker in self.rankers:
self.rankers[ranker] = {}
if not ranker_args in self.rankers[ranker]:
self.rankers[ranker][ranker_args] = {}
self.hist_methods[method]["interleave_method"] = \
get_class(method_args["interleave_method"])()
# sample source and target ranker pair, create deterministic and
# probabilistic ranker pairs
self.source_pair = [0, 0]
self.source_pair[0] = self._sample_ranker_without_replacement(
self.feature_count, [])
self.source_pair[1] = self._sample_ranker_without_replacement(
self.feature_count, [self.source_pair[0]])
self.target_pair = [0, 0]
self.target_pair[0] = self._sample_ranker_without_replacement(
self.feature_count, self.source_pair)
self.target_pair[1] = self._sample_ranker_without_replacement(
self.feature_count, [self.target_pair[0], self.source_pair[0],
self.source_pair[1]])
# init rankers needed by live and/or hist methods
for ranker in self.rankers:
for ranker_args in self.rankers[ranker]:
self.rankers[ranker][ranker_args]["source"] = \
self._get_ranker_pair(ranker, ranker_args,
self.source_pair, self.feature_count, self.ties)
self.rankers[ranker][ranker_args]["target"] = \
self._get_ranker_pair(ranker, ranker_args,
self.target_pair, self.feature_count, self.ties)
import datetime
import numpy as np
# init data, query_samples, d's
train_queries = query.load_queries('../../DATA/NP2004/Fold1/train.txt', 64)
test_queries = query.load_queries('../../DATA/NP2004/Fold1/test.txt', 64)
query_samples = 5000 # how many queries we sample
d = 3
k = 10
number_of_evaluation = query_samples / k
# init user model, evaluation methods
user_model = environment.CascadeUserModel(
'--p_click 0:0.0,1:1 --p_stop 0:0.0,1:0.0')
evaluation = evaluation.NdcgEval()
rem_ndcg_evaluation_train = []
full_ndcg_evaluation_train = []
rem_ndcg_evaluation_test = []
full_ndcg_evaluation_test = []
for m in range(0, k):
# for each k, we have different A matrix
# as mentioned on the REMBO paper
rem_learner = retrieval_system.ListwiseLearningSystemREMBO(
64, d,
'-w random -c comparison.ProbabilisticInterleave -r ranker.ProbabilisticRankingFunctionREMBO -s 3 -d 0.1 -a 0.01'
)
full_learner = retrieval_system.ListwiseLearningSystem(
64,
alphas = [0.01, 0.05, 0.1, 0.5, 1.0]
deltas = [0.05, 0.1, 0.5, 1.0, 2.0]
reps = 5
nrqueries = 500
#alphas = [0.75, 1.0, 1.25, 1.5]
#deltas = [1.75, 2.0, 2.25]
#reps = 5
#nrqueries = 500
factor_k1 = 13.3
factor_k3 = .1
user_model = environment.CascadeUserModel(
'--p_click 0:0.0,1:1 --p_stop 0:0.0,1:0.0')
evaluator = evaluation.NdcgEval()
training_queries = query.load_queries(sys.argv[1], 64)
test_queries = query.load_queries(sys.argv[2], 64)
def run(alpha, delta):
results = []
for _ in range(reps):
#learner = retrieval_system.ListwiseLearningSystem(64, '-w random -c comparison.ProbabilisticInterleave -r ranker.ProbabilisticRankingFunction -s 3 ranker.model.BM25 -d %.2f -a %.2f' % (delta, alpha))
learner = retrieval_system.ListwiseLearningSystemWithCandidateSelection(
64,
'--num_repetitions 10 --num_candidates 6 --history_length 10 --select_candidate select_candidate_repeated -w random -c comparison.ProbabilisticInterleave --ranker ranker.ProbabilisticRankingFunction --ranker_args 3 ranker.model.BM25 -d %s -a %s --anneal 50'
% (delta, alpha))
for _ in range(nrqueries):
q = training_queries[random.choice(training_queries.keys())]
