Search Results for author: Sergey Ivanov

Found 8 papers, 5 papers with code

Probabilistic Rank and Reward: A Scalable Model for Slate Recommendation

no code implementations10 Aug 2022 Imad Aouali, Achraf Ait Sidi Hammou, Sergey Ivanov, Otmane Sakhi, David Rohde, Flavian vasile

We introduce Probabilistic Rank and Reward (PRR), a scalable probabilistic model for personalized slate recommendation.

Recommendation Systems

Simplifying Node Classification on Heterophilous Graphs with Compatible Label Propagation

1 code implementation19 May 2022 Zhiqiang Zhong, Sergey Ivanov, Jun Pang

Graph Neural Networks (GNNs) have been predominant for graph learning tasks; however, recent studies showed that a well-known graph algorithm, Label Propagation (LP), combined with a shallow neural network can achieve comparable performance to GNNs in semi-supervised node classification on graphs with high homophily.

Graph Learning Node Classification

Reinforcement Learning Textbook

1 code implementation19 Jan 2022 Sergey Ivanov

This textbook covers principles behind main modern deep reinforcement learning algorithms that achieved breakthrough results in many domains from game AI to robotics.

reinforcement-learning Reinforcement Learning (RL)

Combining Reward and Rank Signals for Slate Recommendation

no code implementations26 Jul 2021 Imad Aouali, Sergey Ivanov, Mike Gartrell, David Rohde, Flavian vasile, Victor Zaytsev, Diego Legrand

In this paper, we formulate several Bayesian models that incorporate the reward signal (Reward model), the rank signal (Rank model), or both (Full model), for non-personalized slate recommendation.

Recommendation Systems

Are Hyperbolic Representations in Graphs Created Equal?

no code implementations15 Jul 2020 Max Kochurov, Sergey Ivanov, Eugeny Burnaev

Recently there was an increasing interest in applications of graph neural networks in non-Euclidean geometry; however, are non-Euclidean representations always useful for graph learning tasks?

Graph Learning Graph Representation Learning +2

Modern Deep Reinforcement Learning Algorithms

2 code implementations24 Jun 2019 Sergey Ivanov, Alexander D'yakonov

Recent advances in Reinforcement Learning, grounded on combining classical theoretical results with Deep Learning paradigm, led to breakthroughs in many artificial intelligence tasks and gave birth to Deep Reinforcement Learning (DRL) as a field of research.

reinforcement-learning Reinforcement Learning (RL)

Unsupervised Community Detection with Modularity-Based Attention Model

1 code implementation20 May 2019 Ivan Lobov, Sergey Ivanov

In this paper we take a problem of unsupervised nodes clustering on graphs and show how recent advances in attention models can be applied successfully in a "hard" regime of the problem.

Clustering Community Detection

Anonymous Walk Embeddings

2 code implementations ICML 2018 Sergey Ivanov, Evgeny Burnaev

The task of representing entire graphs has seen a surge of prominent results, mainly due to learning convolutional neural networks (CNNs) on graph-structured data.

General Classification Graph Classification

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