Search Results for author: Celine Vens

Found 9 papers, 3 papers with code

HypeRS: Building a Hypergraph-driven ensemble Recommender System

1 code implementation22 Jun 2023 Alireza Gharahighehi, Celine Vens, Konstantinos Pliakos

In this paper, we propose a novel ensemble recommender system that combines predictions made by different models into a unified hypergraph ranking framework.

Recommendation Systems

Predicting Survival Outcomes in the Presence of Unlabeled Data

no code implementations25 Oct 2022 Fateme Nateghi Haredasht, Celine Vens

In this article, we investigate whether we can benefit from the inclusion of such unlabeled data instances to predict accurate survival times.

Survival Analysis

Hierarchy exploitation to detect missing annotations on hierarchical multi-label classification

no code implementations13 Jul 2022 Miguel Romero, Felipe Kenji Nakano, Jorge Finke, Camilo Rocha, Celine Vens

The availability of genomic data has grown exponentially in the last decade, mainly due to the development of new sequencing technologies.

Hierarchical Multi-label Classification

BELLATREX: Building Explanations through a LocaLly AccuraTe Rule EXtractor

no code implementations29 Mar 2022 Klest Dedja, Felipe Kenji Nakano, Konstantinos Pliakos, Celine Vens

In this work we propose a novel method that is Building Explanations through a LocalLy AccuraTe Rule EXtractor (Bellatrex), and is able to explain the forest prediction for a given test instance with only a few diverse rules.

Binary Classification Multi-Label Classification

An Adaptive Hybrid Active Learning Strategy with Free Ratings in Collaborative Filtering

no code implementations11 Mar 2022 Alireza Gharahighehi, Felipe Kenji Nakano, Celine Vens

This rating elicitation procedure enriches the interaction matrix with informative ratings and therefore assists the recommender system to better model the preferences of the users.

Active Learning Collaborative Filtering +3

Diversification in Session-based News Recommender Systems

1 code implementation5 Feb 2021 Alireza Gharahighehi, Celine Vens

In news websites most of users are anonymous and the only available data is sequences of items in anonymous sessions.

Collaborative Filtering News Recommendation +1

Drug-Target Interaction Prediction via an Ensemble of Weighted Nearest Neighbors with Interaction Recovery

1 code implementation22 Dec 2020 Bin Liu, Konstantinos Pliakos, Celine Vens, Grigorios Tsoumakas

In addition, WkNNIR exploits local imbalance to promote the influence of more reliable similarities on the interaction recovery and prediction processes.

Drug Discovery

Deep tree-ensembles for multi-output prediction

no code implementations3 Nov 2020 Felipe Kenji Nakano, Konstantinos Pliakos, Celine Vens

In this paper, we specifically focus on two structured output prediction tasks, namely multi-label classification and multi-target regression.

Classification General Classification +4

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