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The Degree of Randomness in a Live Recommender Systems Evaluation

Gebrekirstos G. Gebremeskel, Arjen P. de Vries
2015 Conference and Labs of the Evaluation Forum  
in a Living Lab [5] .  ...  The experiments have the following goals. The first goal is to investigate the effect of system and/or user behavior randomness on recommender systems evaluations.  ...  some degree of randomness in recommender systems evaluation that involve users in a live setting, in addition to statistical significance tests.  ... 
dblp:conf/clef/GebremeskelV15 fatcat:5ejnb4zkprbohpzc6e5y5kpbdq

The essential role of time in network-based recommendation

Alexandre Vidmer, Matúš Medo
2016 Europhysics letters  
The performance improvements are particularly striking in systems with fast aging.  ...  While aging has been identified as a key component in the growth of information networks, most research has focused on the networks' structural properties and neglected the often available time information  ...  This work was supported by the Swiss National Science Foundation Grant No. 200020-143272 and by the EU FET-Open Grant No. 611272 (project Growthcom).  ... 
doi:10.1209/0295-5075/116/30007 fatcat:3mblkdtzlnajrjiwhydvda62le

Random Performance Differences Between Online Recommender System Algorithms [chapter]

Gebrekirstos G. Gebremeskel, Arjen P. de Vries
2016 Lecture Notes in Computer Science  
In the evaluation of recommender systems, the quality of recommendations made by a newly proposed algorithm is compared to the state-of-the-art, using a given quality measure and dataset.  ...  The experiments aim to quantify the expected degree of variation in performance that cannot be attributed to differences between systems.  ...  The difference in performance seems to indicate that care must be taken to take into account some degree of randomness in recommender systems evaluation that involve users in a live setting, in addition  ... 
doi:10.1007/978-3-319-44564-9_15 fatcat:g5eicd5idrgilmwkkzmp2232xa

Proposal and Evaluation of Serendipitous Recommendation Method Using General Unexpectedness

Takayuki Akiyama, Kiyohiro Obara, Masaaki Tanizaki
2010 ACM Conference on Recommender Systems  
The evaluation results show that one of these recommendation methods, the one using general unexpectedness independent of user profiles, can recommend the serendipitous items accurately.  ...  Although recommender systems have been improved in terms of accuracy, such systems are still insufficient in terms of novelty and serendipity, giving unsatisfactory results to users.  ...  Next, the system recommends ten high-score programs by using the proposed methods, random recommendation, and a method using only unexpectedness for each user from the remaining evaluated programs by using  ... 
dblp:conf/recsys/AkiyamaOT10 fatcat:map4tzug5jgtxpy43ckc5iebfi

Effectiveness of preventive home visits in reducing the risk of falls in old age: a randomized controlled trial

Tobias Luck, Tom Motzek, Luppa, Matschinger, Fleischer, Sesselmann, Roling, Beutner, König, Behrens, Riedel-Heller
2013 Clinical Interventions in Aging  
Random-effects Poisson regression evaluated the effect of preventive home visits on the number of falls controlling for covariates.  ...  in the intervention group (incidence rate ratio 0.63) controlling for age, sex, family status, level of care, and impairment in activities of daily living.  ...  Disclosure The authors report no conflicts of interest in this work.  ... 
doi:10.2147/cia.s43284 pmid:23788832 pmcid:PMC3684143 fatcat:47tutwctkrghbiymbmcffts2ry

International and multidisciplinary expert recommendations for the use of biologics in systemic lupus erythematosus

Jean-François Kleinmann, Florence Tubach, Véronique Le Guern, Alexis Mathian, Christophe Richez, David Saadoun, Karim Sacre, Jérémie Sellam, Raphaèle Seror, Zahir Amoura, Emmanuel Andres, Sylvain Audia (+51 others)
2017 Autoimmunity Reviews  
Conclusion: Overall, 17 recommendations for the good use of biologics in SLE were formulated by a large panel of SLE experts to provide guidance for clinicians in daily practice.  ...  Given the lack of evidence-based data in some clinical situations encountered in real life, we developed expert recommendations for the use of biologics for SLE.  ...  This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. 7.  ... 
doi:10.1016/j.autrev.2017.04.011 pmid:28434948 fatcat:fdlf6xvgsjfrbgb4qih3uemxae

Guidelines of the Brazilian Society of Rheumatology for the treatment of systemic autoimmune myopathies

Fernando Henrique Carlos de Souza, Daniel Brito de Araújo, Verônica Silva Vilela, Mailze Campos Bezerra, Ricardo Santos Simões, Wanderley Marques Bernardo, Renata Miossi, Bernardo Matos da Cunha, Samuel Katsuyuki Shinjo
2019 Advances in Rheumatology  
Recommendations of the Myopathy Committee of the Brazilian Society of Rheumatology for the management and therapy of systemic autoimmune myopathies (SAM).  ...  Funding Brazilian Society of Rheumatology. Souza et al. Advances in Rheumatology (2019) 59:6  ...  and azathioprine) (degree of recommendation A) 8 .  ... 
doi:10.1186/s42358-019-0048-x pmid:30670084 fatcat:kj656737xnhkrdugm4u7tbsdyu

Video suggestion and discovery for youtube

Shumeet Baluja, Rohan Seth, D. Sivakumar, Yushi Jing, Jay Yagnik, Shankar Kumar, Deepak Ravichandran, Mohamed Aly
2008 Proceeding of the 17th international conference on World Wide Web - WWW '08  
We extensively test the results of the recommendations on a three month snapshot of live data from YouTube.  ...  In this paper, we present a novel method based upon the analysis of the entire user-video graph to provide personalized video suggestions for users.  ...  run the system in live service and measure the number of recommendations that are viewed by users, or to have human raters manually evaluate the suggestions.  ... 
doi:10.1145/1367497.1367618 dblp:conf/www/BalujaSSJYKRA08 fatcat:fzk4bo7zkbafhlooeqllendknm

Research on the Establishment of a System for Monitoring Service Quality of the Aged Caring Institutions

2020 DEStech Transactions on Social Science Education and Human Science  
builds a monitoring index system on the basis of "public basis plus professional norms", so as to provide suggestions for policy making related to the establishment of a standard system of monitoring  ...  In the establishment of the aged caring service system, monitoring the service of the aged caring institutions is an important means to improve the service quality and protect the basic rights and interests  ...  Acknowledgement This work is supported by Major projects of Natural Science Foundation of Zhejiang Province  ... 
doi:10.12783/dtssehs/icpcs2020/33876 fatcat:ww7kntuc5je2pewzfcaqqnshse

Heterogeneity, quality, and reputation in an adaptive recommendation model

G. Cimini, M. Medo, T. Zhou, D. Wei, Y.-C. Zhang
2011 European Physical Journal B : Condensed Matter Physics  
Recommender systems help people cope with the problem of information overload.  ...  A recently proposed adaptive news recommender model [Medo et al., 2009] is based on epidemic-like spreading of news in a social network.  ...  Users may differ, for example, by how often they use the recommender system, how broad are their interests, and how accurate they are in evaluation of recommended news.  ... 
doi:10.1140/epjb/e2010-10716-5 fatcat:7o37d4hdbff7nnx5qjrzqhhssm

P158 Performance of laser-derived imaging for assessing digital perfusion in clinical trials of systemic-related digital vasculopathy: a systematic literature review

Natalia Hackett, Andrea Guida, John D Pauling, Peter A Merkel
2021 Rheumatology  
We undertook a systematic literature review to evaluate the performance of laser-derived imaging as outcome measures in clinical trials of SSc-related digital vasculopathy.  ...  Fifteen randomized and fourteen non-randomized trials (total of 689 patients with SSc with mean 23.8/study) have evaluated a broad range of oral, intravenous and topical interventions for SSc-RP (n = 11  ...  We conducted a study to understand the impact of SLE on working lives of South Asian patients. The aim was to identify and develop support mechanisms that could assist them with remaining at work.  ... 
doi:10.1093/rheumatology/keab247.154 fatcat:yy2s53hyubh4jefwvs2dehymy4

A Systematic Review on Complex Networks and its Performance Evaluation Metrics

Selasie A. Brown, Patrick Kudjo, Francis Amavi
2020 International Journal of Computer Applications  
The rapid advancement in computer systems has generated an increasing interest in the study and analysis of complex networks and its applications in the real world.  ...  Additionally, an in-depth analysis of the theoretical models, tools, techniques, and evaluation metrics applied in previous studies are presented.  ...  PERFORMANCE EVALUATION OF COMPLEX NETWORKS There is a need for thorough testing before the live execution of a complex Network application technique.  ... 
doi:10.5120/ijca2020920614 fatcat:hmycw5qfvfatdlarklxdc4jppq

The effect of heterogeneous dynamics of online users on information filtering

Bo-Lun Chen, An Zeng, Ling Chen
2015 Physics Letters A  
In this paper, we develop a framework to study the effect of heterogeneous dynamics of users on the recommendation performance.  ...  Many recommendation algorithms have been proposed to predict the future items that a given user might be interested in.  ...  Acknowledgements This research was supported in part by the National Nat-  ... 
doi:10.1016/j.physleta.2015.09.019 fatcat:pbe6uun2prbetdcxfan7vp5v2y

Expert Recommendation Via Semantic Social Networks

Daning Hu, J. Leon Zhao
2008 International Conference on Information Systems  
The use of social network analysis (SNA) in the design of expert recommendation systems is becoming increasingly popular.  ...  In this study, we used conditional logistic analysis to quantitatively examine the semantics of two social networks in a large open source community called Ohloh.  ...  SNA Measure of Ohloh Networks and a Random Network 3 Evaluation Network Collaboration Network Random Network Average Degree 4.44 27.60 N/A Average Path Length 5.643 4.187 5.110 Clustering Coefficient 0.455  ... 
dblp:conf/icis/HuZ08 fatcat:nux32kkfszhxflwonfiean6yue

Evaluation and drives of international student mobility across European Union countries

Simona Biveinytė, Raimundas Dužinskas
2018 Socialinis ugdymas  
The aim of the study -to evaluate the main factors driving international students' decision to study in Lithuanian universities. Objectives: 1.  ...  The problem of the study -what are the most significant factors determining international students' decision to study in Lithuania and how are they evaluated?  ...  tuition fee Alumni recommendations Data limitation Eligibility to work during the studies The number of working hours allowed in a week Living cost Price index Recommendation of family Data limitation  ... 
doi:10.15823/su.2018.13 fatcat:gpfztozuajgdpi7pywdtmplr4q
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