short-paper

Elliot: A Comprehensive and Rigorous Framework for Reproducible Recommender Systems Evaluation

Authors:

Vito Walter Anelli,

Alejandro Bellogin,

Antonio Ferrara,

Daniele Malitesta,

Felice Antonio Merra,

Francesco Maria Donini,

Tommaso Di NoiaAuthors Info & Claims

SIGIR '21: Proceedings of the 44th International ACM SIGIR Conference on Research and Development in Information Retrieval

Pages 2405 - 2414

https://doi.org/10.1145/3404835.3463245

Published: 11 July 2021 Publication History

Abstract

Recommender Systems have shown to be an effective way to alleviate the over-choice problem and provide accurate and tailored recommendations. However, the impressive number of proposed recommendation algorithms, splitting strategies, evaluation protocols, metrics, and tasks, has made rigorous experimental evaluation particularly challenging. Puzzled and frustrated by the continuous recreation of appropriate evaluation benchmarks, experimental pipelines, hyperparameter optimization, and evaluation procedures, we have developed an exhaustive framework to address such needs. Elliot is a comprehensive recommendation framework that aims to run and reproduce an entire experimental pipeline by processing a simple configuration file. The framework loads, filters, and splits the data considering a vast set of strategies (13 splitting methods and 8 filtering approaches, from temporal training-test splitting to nested K-folds Cross-Validation). Elliot(https://github.com/sisinflab/elliot) optimizes hyperparameters (51 strategies) for several recommendation algorithms (50), selects the best models, compares them with the baselines providing intra-model statistics, computes metrics (36) spanning from accuracy to beyond-accuracy, bias, and fairness, and conducts statistical analysis (Wilcoxon and Paired t-test).

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Cited By

Fan YJi YZhang JSun A(2024)Our Model Achieves Excellent Performance on MovieLens: What Does It Mean?ACM Transactions on Information Systems10.1145/367516342:6(1-25)Online publication date: 18-Oct-2024
https://dl.acm.org/doi/10.1145/3675163
Al Jurdi WAbdo JDemerjian JMakhoul A(2024)Group Validation in Recommender Systems: Framework for Multi-layer Performance EvaluationACM Transactions on Recommender Systems10.1145/36408202:1(1-25)Online publication date: 7-Mar-2024
https://dl.acm.org/doi/10.1145/3640820
Vasilev AVolodkevich AKulandin DBysheva TKlenitskiy A(2024)RePlay: a Recommendation Framework for Experimentation and Production UseProceedings of the 18th ACM Conference on Recommender Systems10.1145/3640457.3691701(1191-1194)Online publication date: 8-Oct-2024
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Index Terms

Elliot: A Comprehensive and Rigorous Framework for Reproducible Recommender Systems Evaluation
1. Computing methodologies
  1. Machine learning
    1. Learning settings
      1. Learning from implicit feedback
    2. Machine learning approaches
      1. Factorization methods
      2. Neural networks
2. Information systems
  1. Information retrieval
    1. Retrieval tasks and goals
      1. Recommender systems
  2. Information systems applications
    1. Data mining
      1. Collaborative filtering

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SIGIR '21: Proceedings of the 44th International ACM SIGIR Conference on Research and Development in Information Retrieval

July 2021

2998 pages

ISBN:9781450380379

DOI:10.1145/3404835

General Chairs:
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University of Washington
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New York University
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Universidad Autónoma de Madrid, Amazon
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Rosie Jones
Spotify
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Tetsuya Sakai
Waseda University

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https://dl.acm.org/doi/10.1145/3675163
Al Jurdi WAbdo JDemerjian JMakhoul A(2024)Group Validation in Recommender Systems: Framework for Multi-layer Performance EvaluationACM Transactions on Recommender Systems10.1145/36408202:1(1-25)Online publication date: 7-Mar-2024
https://dl.acm.org/doi/10.1145/3640820
Vasilev AVolodkevich AKulandin DBysheva TKlenitskiy A(2024)RePlay: a Recommendation Framework for Experimentation and Production UseProceedings of the 18th ACM Conference on Recommender Systems10.1145/3640457.3691701(1191-1194)Online publication date: 8-Oct-2024
https://dl.acm.org/doi/10.1145/3640457.3691701
Li JLi HHe ZMa WSun PZhang MMa S(2024)ReChorus2.0: A Modular and Task-Flexible Recommendation LibraryProceedings of the 18th ACM Conference on Recommender Systems10.1145/3640457.3688076(454-464)Online publication date: 8-Oct-2024
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Vente TWegmeth LSaid ABeel J(2024)From Clicks to Carbon: The Environmental Toll of Recommender SystemsProceedings of the 18th ACM Conference on Recommender Systems10.1145/3640457.3688074(580-590)Online publication date: 8-Oct-2024
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Milogradskii ALashinin OP AAnanyeva MKolesnikov S(2024)Revisiting BPR: A Replicability Study of a Common Recommender System BaselineProceedings of the 18th ACM Conference on Recommender Systems10.1145/3640457.3688073(267-277)Online publication date: 8-Oct-2024
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Heitz LCroci JSachdeva MBernstein A(2024)Informfully - Research Platform for Reproducible User StudiesProceedings of the 18th ACM Conference on Recommender Systems10.1145/3640457.3688066(660-669)Online publication date: 8-Oct-2024
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Bauer CZangerle ESaid A(2024)Exploring the Landscape of Recommender Systems Evaluation: Practices and PerspectivesACM Transactions on Recommender Systems10.1145/36291702:1(1-31)Online publication date: 7-Mar-2024
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Michiels LVerachtert RFerraro AFalk KGoethals B(2024)A Framework and Toolkit for Testing the Correctness of Recommendation AlgorithmsACM Transactions on Recommender Systems10.1145/35911092:1(1-45)Online publication date: 7-Mar-2024
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Wang YTian CHu BYu YLiu ZZhang ZZhou JPang LWang XChua TNgo CKa-Wei Lee RKumar RLauw H(2024)Can Small Language Models be Good Reasoners for Sequential Recommendation?Proceedings of the ACM Web Conference 202410.1145/3589334.3645671(3876-3887)Online publication date: 13-May-2024
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