Search Results for author: Mehrdad Rostami

Found 5 papers, 0 papers with code

Presentation a Trust Walker for rating prediction in Recommender System with Biased Random Walk: Effects of H-index Centrality, Similarity in Items and Friends

no code implementations10 Sep 2020 Saman Forouzandeh, Mehrdad Rostami, Kamal Berahmand

Also, for this problem, researchers use different modes of the Random Walk algorithm to randomly visit some users, study their behavior, and gain the degree of trust between them.

Decision Making Recommendation Systems

A Novel Community Detection Based Genetic Algorithm for Feature Selection

no code implementations8 Aug 2020 Mehrdad Rostami, Kamal Berahmand, Saman Forouzandeh

The findings indicate that the new approach continuously yields improved classification accuracy.

Community Detection

Review of Swarm Intelligence-based Feature Selection Methods

no code implementations7 Aug 2020 Mehrdad Rostami, Kamal Berahmand, Saman Forouzandeh

In this paper, a comparative analysis of different feature selection methods is presented, and a general categorization of these methods is performed.

Dimensionality Reduction

Presentation of a Recommender System with Ensemble Learning and Graph Embedding: A Case on MovieLens

no code implementations15 Jul 2020 Saman Forouzandeh, Mehrdad Rostami, Kamal Berahmand

Graph embedding was also proposed for resolution of this issue, where all or part of user behavior can be simulated through the generation of several vectors, resolving the problem of user behavior analysis to a large extent while maintaining high efficiency.

Decision Making Ensemble Learning +3

Integration of graph clustering with ant colony optimization for feature selection

no code implementations4 Sep 2015 Parham Moradi, Mehrdad Rostami

In the second step, the features are divided into several clusters using a community detection algorithm and finally in the third step, a novel search strategy based on the ant colony optimization is developed to select the final subset of features.

Community Detection General Classification +1

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