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On the Difficulty of Evaluating Baselines: A Study on Recommender Systems [article]

Steffen Rendle, Li Zhang, Yehuda Koren
2019 arXiv   pre-print
Numerical evaluations with comparisons to baselines play a central role when judging research in recommender systems. In this paper, we show that running baselines properly is difficult.  ...  With a careful setup of a vanilla matrix factorization baseline, we are not only able to improve upon the reported results for this baseline but even outperform the reported results of any newly proposed  ...  Introduction In the field of recommendation systems, numerical evaluations play a central role for judging research.  ... 
arXiv:1905.01395v1 fatcat:4qka2twxuzgzfpu6wqae2ka6ay

A Study on Collaborative Filtering for Hybrid Recommender System for Service Discovery

S. Baskaran, K. Murugan
2019 International Journal of Scientific Research in Computer Science Engineering and Information Technology  
Powerful deployments must start with careful evaluation of potential customers and their goals. supported this evaluation, system makers have numerous possibilities for the choice of algorithmic principle  ...  to produce sensible recommendations in a number of things.  ...  in their profiles. the difficulty of trust arises towards evaluations of a precise client. the matter may well be resolved by distribution of priorities to the users.  ... 
doi:10.32628/cseit195364 fatcat:btfzyrgwkvfslo7yb2ozy2epwy

Metalearning and Recommender Systems: A literature review and empirical study on the algorithm selection problem for Collaborative Filtering

Tiago Cunha, Carlos Soares, André C.P.L.F. de Carvalho
2018 Information Sciences  
From the several open problems in this area, the decision of which is the best recommendation algorithm for a specific problem is one of the most important and less studied.  ...  The current trend to solve this problem is the experimental evaluation of several recommendation algorithms in a handful of datasets.  ...  The authors also wish to acknowledge the Portuguese funding institution FCT -Fundação para a Ci ěncia e a Tecnologia for supporting their research through grant SFRH/BD/117531/2016 and the Brazilian funding  ... 
doi:10.1016/j.ins.2017.09.050 fatcat:tu6w7bvyhfdpdacw2uy5rrobye

Personality or Value: A Comparative Study of Psychographic Segmentation Based on an Online Review Enhanced Recommender System

Hui Liu, Yinghui Huang, Zichao Wang, Kai Liu, Xiangen Hu, Weijun Wang
2019 Applied Sciences  
We then incorporate the lexicons in a deep neural network (DNN)-based recommender system to predict users' online purchasing preferences considering the new progress in segmentation-based user preference  ...  on behavior measurements of users' word use.  ...  Based on a web-usage lifestyle scale developed by AIO, Pan et al. (2014) applied a tagging method to identify online lifestyles and to make recommendations according to the similarity of a user lifestyle  ... 
doi:10.3390/app9101992 fatcat:ichoe7q6cfef5gce4wecx5rjfu

EULAR recommendations for conducting clinical studies and/or clinical trials in systemic vasculitis: focus on anti-neutrophil cytoplasm antibody-associated vasculitis

B. Hellmich, O. Flossmann, W. L Gross, P. Bacon, J. Willem Cohen-Tervaert, L. Guillevin, D. Jayne, A. Mahr, P. A Merkel, H. Raspe, D. G I Scott, J. Witter (+2 others)
2007 Annals of the Rheumatic Diseases  
On the basis of research questions posed by the group, recommendations were derived for conducting clinical studies and/or clinical trials in systemic vasculitis.  ...  A number of aspects of trial methodology were deemed important for future research. Conclusions: On the basis of expert opinion, recommendations for conducting clinical trials in AAV were formulated.  ...  The contribution of Dr Llinares was on a personal basis and does not reflect the views of either the EMEA or its committees.  ... 
doi:10.1136/ard.2006.062711 pmid:17170053 pmcid:PMC2703775 fatcat:abhv5foyknb7lkrqdjboliarpy

Defining a Meaningful Baseline for News Recommender Systems

Benjamin Kille, Andreas Lommatzsch
2019 ACM Conference on Recommender Systems  
Evaluation protocols for news recommender systems typically involve comparing the performance of methods to a baseline.  ...  This work explores what baselines have been used, what criteria baselines must fulfil, and evaluates a variety of baselines in a news recommender evaluation setting with multiple publishers.  ...  recommender systems than in the case of movies.  ... 
dblp:conf/recsys/KilleL19 fatcat:fq5sb3bm7vaglag5jr5trkcvxa

Critical Making Baseline

Regina Sipos, Maria Åkerman, Victoria Wenzelmann
2022 Zenodo  
Whether makers and maker communities follow the principles of RRI in other aspects, has also not been studied so far. These are thus the main goals of this project.  ...  However, a framework that allows researchers to examine RRI principles in GIM has not yet been developed, and transdisciplinary scientific insights are necessary to better understand the processes of maker  ...  We would also like to thank the Technical University of Berlin and the University of Siegen, where the second author of this paper was a research associate at the time of conducting the workshop, for supporting  ... 
doi:10.5281/zenodo.6907490 fatcat:hzoybb52f5aopdmouldtx45fje

Reproducibility and Baseline Reporting for Dynamic Multi-objective Benchmark Problems [article]

Daniel Herring, Michael Kirley, Xin Yao
2022 arXiv   pre-print
A baseline schema for dynamic algorithm evaluation is introduced, which provides a mechanism to interrogate performance and optimization behaviours of well-known evolutionary algorithms that were not designed  ...  Evaluation of purpose-built algorithms for DMOPs is often performed on narrow selections of dynamic instances with differing change magnitude and frequency or a limited selection of problems.  ...  In order to determine a baseline difficulty for existing dynamic multi-objective benchmarks there are some key parameters, on which we can determine the baseline performance of state of the art static  ... 
arXiv:2204.04140v1 fatcat:vyqdtcadirav3dqem2d6sfully

Control Groups: Not Truly Baseline

Tsee Leng Choy, John F. Connolly
2014 World Journal of Neuroscience  
Drawing from aspects in our normative study on musical emotion perception, we show how a group of participants who would normally be considered a control group in most studies, display clear event-related  ...  This preliminary finding demonstrates the importance of careful screening of control group membership. Failure in this process can produce misleading observations, undermining the validity of results.  ...  More significantly, their findings have highlighted the re-evaluation of control conditions alongside the experimental question; a recommendation having clear implications beyond intervention and pharmacological  ... 
doi:10.4236/wjns.2014.44036 fatcat:dtmegkjb5jdj3fqqbpyontv234

Baseline Specimens of Erosion and Abrasion Studies

Hayati Ishak, James Field, Matthew German
2020 European Journal of Dentistry  
The bovine teeth for erosion or abrasion studies usually undergo specimen preparation to produce a "flat surface" baseline specimen.  ...  The incorporation of Ra and BAP values in baseline specimens has the potential in predicting the wear or lubricating potential of these specimens.  ...  For the measurement of roughness of polished bovine enamel specimens undergoing profilometric analysis, the selection of sampling length and evaluation length should be based on the recommendation of the  ... 
doi:10.1055/s-0040-1721235 pmid:33368070 fatcat:mwlts2bz4bgrxb6grddte4xkxi

Baseline management of asthma control

O. Cavkaytar, B.E. Sekerel
2014 Allergologia et Immunopathologia  
Unfortunately, the desired level of asthma control has not been achieved in a considerable number of regions throughout the world, and the level of control is overestimated by both patients and their parents  ...  Asthma is a complex, chronic inflammatory disease of the lower airways affecting people of all ages. Approximately 300 million individuals are currently suffering from asthma worldwide.  ...  children and from 2% to 12% among adults. 2 The International Study of Asthma and Allergies (ISAAC) Phase 1 and Phase 3 provided a huge amount of data on the prevalence of asthma and the changes in  ... 
doi:10.1016/j.aller.2012.10.004 pmid:23265257 fatcat:jc7b6pqqqndfrn75zjxhip5vge

Baseline Sleep Dysfunction Among Matriculating Interns

Samantha J. Pulliam, Debra F. Weinstein, Atul Malhotra, Eric A. Macklin, Lori R. Berkowitz
2012 Journal of Graduate Medical Education  
Little information about sleep habits and the prevalence of sleep disorders among residents is available to inform policy in this area.  ...  Work hour limitations for graduate medical trainees, motivated by concerns about patient safety, quality of care, and trainee well-being, continue to generate controversy.  ...  Discussion In this study, the mean sleep duration reported by physicians embarking on their residency training (7 hours and 34 minutes) was nearly 1 hour less than the 8.5 hours recommended for young adults  ... 
doi:10.4300/jgme-d-11-00153.1 pmid:23730442 pmcid:PMC3399613 fatcat:mx3l6ibl6bbbfifagqc22rlnbq

A baseline for multiple-choice testing in the university classroom [article]

Aaron. D. Slepkov, Melissa L. Van Bussel, Kara. M. Fitze, Wesley S. Burr
2021 arXiv   pre-print
of education establishes a much-needed baseline for actual as-deployed classroom tests.  ...  Our report aims to establish three related things: First, reporting on the functional and psychometric operation of 182 multiple-choice tests deployed in a variety of courses at all undergraduate levels  ...  Item Analysis Item difficulty. Individual units of evaluation on MCTs are referred to as items. The most common measure of a test item's functionality is that of the item's difficulty.  ... 
arXiv:2103.10565v1 fatcat:4befas6hqnbkdo4f7fh7eemazq

Baseline Models for Bridge Performance Monitoring

Maria Q. Feng, Doo Kie Kim, Jin-Hak Yi, Yangbo Chen
2004 Journal of engineering mechanics  
This study represents the first effort in applying a neural network-based system identification technique to establish and update a baseline finite element model of an instrumented highway bridge based  ...  A baseline model is essential for long-term structural performance monitoring and evaluation.  ...  Acknowledgments This research was supported by the California Department of Transportation ͑Caltrans͒ and the Korea Science and Engineering Foundation ͑KOSEF͒.  ... 
doi:10.1061/(asce)0733-9399(2004)130:5(562) fatcat:a3syhr7n6bgqvhxkvjdxf4ajou

EAHP European Statements baseline survey 2015: methodology

Jonathan Underhill, Nicholas Gibbons
2016 European journal of hospital pharmacy. Science and practice  
Contributors The survey group, NG and JU were involved in planning of the study, design of the questionnaire and conducting of survey. CMcK was involved in the initial planning of the survey.  ...  NG set up the online form, along with respective language mutations. NG, JU and PH were involved in data evaluation and statistics.  ...  What this study adds ▸ The baseline survey aims to identify the barriers and drivers of implementation of the Statements. ▸ The methods used for this survey results informs the methodology and scope of  ... 
doi:10.1136/ejhpharm-2016-000893 fatcat:inisx3rdwbaktnhjb7aulabtyq
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