A Personalized QoS Prediction Method for Web Services via Blockchain-Based Matrix Factorization.

Weihong Cai Xin Du Jianlong Xu

Published in: Sensors (2019)

Keyphrases

matrix factorization
web services
pairwise
objective function
high order
negative matrix factorization
recommender systems
collaborative filtering
em algorithm
linear combination
prediction accuracy
missing data
user behavior
factor analysis
stochastic gradient descent