activity
20162022
most citedGraph-based Collaborative Ranking

52 citations · 109 across the 11 of their papers we have counts for

collaborators

13 papers

q-fin.ST2022

NETpred: Network-based modeling and prediction of multiple connected market indices

Alireza Jafari, Saman Haratizadeh

Market prediction plays a major role in supporting financial decisions. An emerging approach in this domain is to use graphical modeling and analysis to for prediction of next mark…

cs.IR2022★ 15 cited

STAR: A Session-Based Time-Aware Recommender System

Reza Yeganegi, Saman Haratizadeh

Session-Based Recommenders (SBRs) aim to predict users' next preferences regard to their previous interactions in sessions while there is no historical information about them. Mode…

q-fin.TR2022★ 2 cited

GCNET: graph-based prediction of stock price movement using graph convolutional network

Alireza Jafari, Saman Haratizadeh

The importance of considering related stocks data for the prediction of stock price movement has been shown in many studies, however, advanced graphical techniques for modeling, em…

cs.IR2022★ 3 cited

Attention-Based Recommendation On Graphs

Taher Hekmatfar, Saman Haratizadeh, Parsa Razban +1

Graph Neural Networks (GNN) have shown remarkable performance in different tasks. However, there are a few studies about GNN on recommender systems. GCN as a type of GNNs can extra…

cs.IR2020

Representation Extraction and Deep Neural Recommendation for Collaborative Filtering

Arash Khoeini, Saman Haratizadeh, Ehsan Hoseinzade

Many Deep Learning approaches solve complicated classification and regression problems by hierarchically constructing complex features from the raw input data. Although a few works…

cs.IR2020

Embedding Ranking-Oriented Recommender System Graphs

Taher Hekmatfar, Saman Haratizadeh, Sama Goliaei

Graph-based recommender systems (GRSs) analyze the structural information in the graphical representation of data to make better recommendations, especially when the direct user-it…

cs.LG2019★ 6 cited

U-CNNpred: A Universal CNN-based Predictor for Stock Markets

Ehsan Hoseinzade, Saman Haratizadeh, Arash Khoeini

The performance of financial market prediction systems depends heavily on the quality of features it is using. While researchers have used various techniques for enhancing the stoc…

cs.IR2018

GEMRank: Global Entity Embedding For Collaborative Filtering

Arash Khoeini, Bita Shams, Saman Haratizadeh

Recently, word embedding algorithms have been applied to map the entities of recommender systems, such as users and items, to new feature spaces using textual element-context relat…

cs.IR2018

IteRank: An iterative network-oriented approach to neighbor-based collaborative ranking

Bita Shams, Saman Haratizadeh

Neighbor-based collaborative ranking (NCR) techniques follow three consecutive steps to recommend items to each target user: first they calculate the similarities among users, then…

cs.SI2018

Reliable graph-based collaborative ranking

Bita Shams, Saman Haratizadeh

GRank is a recent graph-based recommendation approach the uses a novel heterogeneous information network to model users' priorities and analyze it to directly infer a recommendatio…

cs.LG2018★ 10 cited

CNNPred: CNN-based stock market prediction using several data sources

Ehsan Hoseinzade, Saman Haratizadeh

Feature extraction from financial data is one of the most important problems in market prediction domain for which many approaches have been suggested. Among other modern tools, co…

cs.SI2016★ 52 cited

Graph-based Collaborative Ranking

Bita Shams, Saman Haratizadeh

Data sparsity, that is a common problem in neighbor-based collaborative filtering domain, usually complicates the process of item recommendation. This problem is more serious in co…

cs.SI2016★ 21 cited

SibRank: Signed Bipartite Network Analysis for Neighbor-based Collaborative Ranking

Bita Shams, Saman Haratizadeh

Collaborative ranking is an emerging field of recommender systems that utilizes users' preference data rather than rating values. Unfortunately, neighbor-based collaborative rankin…