Scalability and sparsity issues in recommender datasets: a survey

M Singh - Knowledge and Information Systems, 2020 - Springer
Recommender systems have been widely used in various domains including movies, news,
music with an aim to provide the most relevant proposals to users from a variety of available …

Recommender system based on temporal models: a systematic review

I Rabiu, N Salim, A Da'u, A Osman - Applied Sciences, 2020 - mdpi.com
Over the years, the recommender systems (RS) have witnessed an increasing growth for its
enormous benefits in supporting users' needs through map** the available products to …

Alleviating the data sparsity problem of recommender systems by clustering nodes in bipartite networks

F Zhang, S Qi, Q Liu, M Mao, A Zeng - Expert Systems with Applications, 2020 - Elsevier
Recommender systems help users to find information that fits their preferences in an
overloaded search space. Collaborative filtering systems suffer from increasingly severe …

[HTML][HTML] Efficient clustering in collaborative filtering recommender system: Hybrid method based on genetic algorithm and gravitational emulation local search …

T Mohammadpour, AM Bidgoli, R Enayatifar… - Genomics, 2019 - Elsevier
The ultimate goal of the Recommender System (RS) is to offer a proposal that is very close
to the user's real opinion. Data clustering can be effective in increasing the accuracy of …

Ordinal consistency based matrix factorization model for exploiting side information in collaborative filtering

A Pujahari, DS Sisodia - Information Sciences, 2023 - Elsevier
In designing modern recommender systems, item feature information (or side information) is
often ignored as most models focus on exploiting rating information. However, the side …

Recommender systems clustering using Bayesian non negative matrix factorization

J Bobadilla, R Bojorque, AH Esteban, R Hurtado - IEEE access, 2017 - ieeexplore.ieee.org
Recommender Systems present a high-level of sparsity in their ratings matrices. The
collaborative filtering sparse data makes it difficult to: 1) compare elements using memory …

What makes a review a reliable rating in recommender systems?

D Margaris, C Vassilakis, D Spiliotopoulos - Information Processing & …, 2020 - Elsevier
The way that users provide feedback on items regarding their satisfaction varies among
systems: in some systems, only explicit ratings can be entered; in other systems textual …

Towards event prediction in temporal graphs

W Fan, R **, P Lu, C Tian, R Xu - Proceedings of the VLDB Endowment, 2022 - dl.acm.org
This paper proposes a class of temporal association rules, denoted by TACOs, for event
prediction. As opposed to previous graph rules, TACOs monitor updates to graphs, and can …

An effective distributed predictive model with Matrix factorization and random forest for Big Data recommendation systems

BA Hammou, AA Lahcen, S Mouline - Expert Systems with Applications, 2019 - Elsevier
Recommendation systems have been widely deployed to address the challenge of
overwhelming information. They are used to enable users to find interesting information from …

A hybrid model collaborative movie recommendation system using K-means clustering with ant colony optimisation

MS Kumar, J Prabhu - International Journal of Internet …, 2020 - inderscienceonline.com
Movie recommendation system offers a mechanism to allocate the user to attain the famous
film by getting an opinion from similar users or past rating by user. This produces …