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Exploiting natural language services:a polarity based black-box attack

Frontiers of Computer Science 2022年第5期16卷 213-215页

作者： fatma gumus M.Fatih AMASYALI Department of Computer Engineering Yildiz Technical UniversityIstanbul 34220Turkey Department of Computer Engineering Air Force AcademyNational Defence UniversityIstanbul 34149Turkey

1 Introduction Production input of Natural Language Processing(NLP)services can be be manipulated with malicious intent in order to lower the performance to a level that compromises the integrity of the service without any information on the underlying *** adversaries that perform word-level input perturbations in black-box settings first detect the“important”words,then perform noisy operations,such as replacement or *** et al.[1]assigned word importance scores(temporal scores)calculated via querying the partial input for each individual *** this procedure,they queried the victim model on both the word score calculation and the perturbation stage,which potentially caused a big requestresponse *** comparison,we only calculate the word importance scores(polarity score)once using an external dataset,and without querying the victim model.

关键词： services service individual

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Frequency and safety of COVID-19 vaccination in children with multisystem inflammatory syndrome:a telephonic interview-based analysis

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World Journal of Pediatrics 2022年第10期18卷 700-705页

作者： Kubra Aykac Kubra Ozturk Osman Oguz Demir Dilan Demir gumus Sevgi Aslan Ela Cem Miray Yilmaz Celebi Mustafa Dogan Karabacak Gulsum Alkan fatma Dilsad Aksoy Burcu Ceylan Cura Yayla Eda Kepenekli Solmaz Celebi Melike Emiroglu Ilker Devrim Ali Bulent Cengiz Mehmet Ceyhan Yasemin Ozsurekci Faculty of Medicine Department of Pediatric Infectious DiseasesHacettepe UniversityAnkaraTurkey Goztepe Prof.Dr.Suleyman Department of Pediatric RheumatologyYalcın City HospitalIstanbulTurkey Faculty of Medicine Department of Pediatric DiseasesHacettepe UniversityAnkaraTurkey Department of Pediatric Infectious Diseases Marmara University School of MedicineIstanbulTurkey Department of Pediatric Infectious Diseases Dr.Behçet Uz Children’s HospitalízmirTurkey Faculty of Medicine Department of Pediatric Infectious DiseasesSelcuk UniversityKonyaTurkey Faculty of Medicine Department of Pediatric Infectious DiseasesUludag UniversityBursaTurkey Department of Pediatric Infectious Diseases University of Health Science Ankara Training and Research HospitalAnkaraTurkey

Coronavirus disease 2019(COVID-19)vaccines are currently approved or authorized to prevent serious outcomes,such as severe disease,hospitalization,and *** Pfizer-BioNTech vaccine is recommended for everyone aged five and older in the United States(US)to prevent severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection[1,2].However,it is unclear whether children with a history of multisystem,inflammatory syndrome in children(MIS-C)may be at risk for a MIS-like response following COVID-19 vaccination or SARS-CoV-2 reinfection[2].Therefore,physicians remain uncertain about vaccinating children with a history of *** study investigates the occurrence of severe,systemic side effects of COVID-19 vaccines and the recurrence of the MIS-C symptoms in children with a history of MIS-C to overcome vaccine hesitancy.

关键词： vaccination vaccine Pfizer

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