quality assessment

质量评价
  • 文章类型: Editorial
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  • 文章类型: Journal Article
    目的:评估加拿大三级中心羟氯喹(HCQ)诱导的视网膜病变筛查的质量,我们专注于电子健康记录中的风险因素文档,根据2016年AAO指南。
    方法:我们根据2016年至2019年在蒙特利尔大学中心医院(CHUM)接受HCQ诱发视网膜病变筛查的患者的图表回顾,进行了一项回顾性质量评估研究。我们评估了HCQ诱导的视网膜病变的四个关键风险因素:日剂量,使用期限,肾脏疾病,和他莫昔芬的使用,使用三层分级系统(理想,adequate,不足)用于文件评估。进行了帕累托和根本原因分析,以确定潜在的改进解决方案。
    结果:文档质量在我们的研究中有所不同:每日剂量为33%理想,31%合适,36%不合适。使用文档的持续时间是理想的75%,2%足够,24%不够。肾脏疾病记录只有6%是理想的,62%的人足够,32%的图表没有任何既往病史。在女性排行榜中,他莫昔芬的使用根本没有记录在案,65%的人充分记录药物清单。帕累托分析表明,改善肾脏疾病和他莫昔芬记录可以减少64%的非理想记录,和提高每日剂量文件可以减少高达90%。
    结论:关键危险因素的准确记录对于HCQ诱导的视网膜病变筛查至关重要,影响考试开始和频率。我们的研究发现了医院筛查过程中的潜在改进,转诊医生,和眼科医生的水平。实施整合途径可以增强患者体验和筛查效果。
    OBJECTIVE: To assess the quality of hydroxychloroquine (HCQ)-induced retinopathy screening at a Canadian tertiary center, we concentrate on risk factor documentation within the electronic health record, in accordance with the 2016 AAO guidelines.
    METHODS: We performed a retrospective quality assessment study based on chart review of patients who underwent screening for HCQ-induced retinopathy at the Centre Hospitalier de l\'Université de Montréal (CHUM) from 2016 to 2019. We evaluated four key risk factors for HCQ-induced retinopathy: daily dose, duration of use, renal disease, and tamoxifen use, using a three-tier grading system (ideal, adequate, inadequate) for documentation assessment. Pareto and root cause analyses were conducted to identify potential improvement solutions.
    RESULTS: Documentation quality varied in our study: daily dosage was 33% ideal, 31% appropriate, and 36% inappropriate. Duration of use documentation was 75% ideal, 2% adequate, and 24% inadequate. Renal disease documentation was only 6% ideal, with 62% adequate and 32% of charts lacking any past medical history. Among women\'s charts, tamoxifen use wasn\'t documented at all, with 65% adequately documenting medication lists. Pareto analysis indicated that improving renal disease and tamoxifen documentation could reduce 64% of non-ideal records, and enhancing daily dose documentation could decrease this by up to 90%.
    CONCLUSIONS: Accurate documentation of key risk factors is critical for HCQ-induced retinopathy screening, impacting both exam initiation and frequency. Our study identifies potential improvements in the screening process at the hospital, referring physician, and ophthalmologist levels. Implementing integrated pathways could enhance patient experience and screening effectiveness.
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  • 文章类型: Journal Article
    远程测序赋予了对其他遗传信息的深入了解,除了可以通过短读和现代长读技术访问的遗传信息之外。一些新的测序技术可用于远程数据集,如“Hi-C”和“关联读取”,具有高通量和高分辨率的基因组分析,并迅速推进基因组组装领域,基因组支架,和更全面的变体识别。在这篇文章中,我们专注于五种主要的远程测序技术:高通量染色体构象捕获(Hi-C),10x基因组学关联阅读,单列标签,转座酶酶连接长读测序(TELL-seq),和单管长片段读数(stLFR)。我们详细介绍了五大平台的机制和数据产品,介绍了几个最重要的应用,评估了来自不同平台的测序数据的质量,并讨论了目前可用的生物信息学工具。我们希望这项工作将有助于为特定的生物学研究选择合适的远程技术。
    Long-range sequencing grants insight into additional genetic information beyond that which can be accessed by both short reads and modern long-read technology. Several new sequencing technologies are available for long-range datasets such as \"Hi-C\" and \"Linked Reads\" with high-throughput and high-resolution genome analysis, and are rapidly advancing the field of genome assembly, genome scaffolding, and more comprehensive variant identification. In this article, we focused on five major long-range sequencing technologies: high-throughput chromosome conformation capture (Hi-C), 10x Genomics Linked Reads, haplotagging, transposase enzyme linked long-read sequencing (TELL-seq), and single tube long fragment read (stLFR). We detailed the mechanisms and data products of the five platforms, introduced several of the most important applications, evaluated the quality of sequencing data from different platforms, and discussed the currently available bioinformatics tools. We hope this work will benefit the selection of appropriate long-range technology for specific biological studies.
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  • 文章类型: Journal Article
    医疗保健设施中基于自然的综合干预措施作为有前途的健康和生物多样性促进策略越来越重要。这种类型的干预措施将医疗机构附近生物多样性的恢复与在自然环境中指导患者获得健康结果相结合。然而,对这些干预措施的质量评估仍然不完善。根据最近的范围审查,作者开发了一个初步的质量框架,以支持医疗设施设计,实施和评估基于自然的综合干预措施。本研究旨在微调新兴实践中质量框架的实际相关性。
    在比利时的七个医疗机构进行了定性访谈研究。使用滚雪球和目的性采样的组合,22名专业人士,参与他们设施中基于自然的综合干预,参与研究。半结构化访谈被转录并导入NVivo。使用演绎和归纳主题分析来探索质量框架的实践相关性。利益相关者的大会审查和成员对调查结果的检查也是研究的一部分。
    与自然管理协调员的22次访谈,医疗保健专业人员,和医疗保健管理人员由3名主要研究者在7个医疗机构实施基于自然的综合干预措施.参与的医疗机构中基于自然的综合干预措施的情境化和复杂性表明,需要基于证据的质量框架来描述基于自然的干预措施。这项研究得出了九项质量标准,确认从先前的范围审查得出的八项质量标准,并确定新的质量标准“能力建设”,杠杆作用和连续性。这些质量标准已经完善。最后,制定了质量框架提案,并在清单中实施。质量框架的部署应嵌入在一个连续的周期中,在基于自然的综合干预的每个阶段,基于评估的自适应监测和调整过程。
    在医疗机构中基于自然的综合干预措施的背景下,桥接医疗保健和自然管理领域需要跨学科方法。科学框架,如“复杂的干预措施,“行星健康和一个健康可以支持共同设计,在周期性范围内实施和评估基于自然的综合干预措施,适应过程。此外,与自然相互作用的质量的重要性可以从更复杂的关注中获得。最后,对医疗机构的影响,政策制定者和教育进行了讨论,以及研究的优点和局限性。
    UNASSIGNED: Integrated nature-based interventions in healthcare facilities are gaining importance as promising health and biodiversity promotion strategies. This type of interventions combines the restoration of biodiversity in the vicinity of the healthcare facility with guiding patients in that natural environment for health outcomes. However, quality appraisal of these interventions is still poorly developed. Based on a recent scoping review, the authors developed a preliminary quality framework in support of healthcare facilities designing, implementing and evaluating integrated nature-based interventions. This present study aims to fine-tune the practical relevance of the quality framework within the emerging practice.
    UNASSIGNED: A qualitative interview study was conducted in seven healthcare facilities in Belgium. Using a combination of snowball and purposive sampling, 22 professionals, involved in the integrated nature-based intervention in their facility, participated in the study. The semi-structured interviews were transcribed and imported into NVivo. A deductive and inductive thematic analysis was used to explore the practical relevance of the quality framework. A stakeholders\' assembly review and a member checking of the findings were also part of the study.
    UNASSIGNED: Twenty-two interviews with nature management coordinators, healthcare professionals, and healthcare managers were conducted by three principal investigators in seven healthcare facilities implementing integrated nature-based interventions. The contextualization and complexity of integrated nature-based interventions in the participating healthcare facilities demonstrated the need for an evidence-based quality framework describing nature-based interventions. The study led to nine quality criteria, confirming the eight quality criteria derived from a previous scoping review, and the identification of a new quality criterion \'Capacity building, leverage and continuity\'. These quality criteria have been refined. Finally, a proposal for a quality framework was developed and operationalized in a checklist. Deployment of the quality framework should be embedded in a continuous cyclical, adaptive process of monitoring and adjusting based on evaluations at each phase of an integrated nature-based intervention.
    UNASSIGNED: Bridging the domains of healthcare and nature management in the context of an integrated nature-based intervention in a healthcare facility requires a transdisciplinary approach. Scientific frameworks such as \"complex interventions,\" Planetary Health and One Health can support the co-design, implementation and evaluation of integrated nature-based interventions within a cyclical, adaptive process. In addition, the importance of the quality of the interactions with nature could gain from more sophisticated attention. Finally, the implications for healthcare facilities, policymakers and education are discussed, as well as the strengths and limitations of the study.
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  • 文章类型: Journal Article
    从2019年到2024年,在日本全国范围内对自来水中的无机成分进行了调查。在这次调查中,收集了1564个自来水样本,并从其他33个国家收集了另外194个自来水样本。水样分析了27种溶解的无机成分,主要关注主要成分和微量成分的分布,包括Ca,Mg,K,Na,Cl-,NO3-,SO42-,总硬度,Al,Fe,Cu,Mn,和Zn。日本自来水硬度为50.5±30.2(±1σSD)mg/L,根据世界卫生组织(WHO)的分类被归类为软水。日本自来水中各主要成分的平均含量往往低于其他国家。此外,Piper三线性图用于对日本自来水类型进行分类。主要的水类型是Ca-HCO3和混合类型,在全国范围内发行。日本自来水一般符合日本和世卫组织的饮用水标准,只有1%(17/1564个地点)的样本超过水质标准。对三个家用水龙头的水质变化进行了2年的观察,结果表明主要成分和痕量金属(Al,Fe,Cu,Mn,和Zn)以不同的模式变化。这表明痕量金属元素的行为受到当地基础设施的影响,如供应管道,与水源水质的变异性不同。
    A nationwide survey of inorganic components of tap water all over Japan was conducted from 2019 to 2024. In this survey, 1564 tap water samples were collected, and an additional 194 tap water samples were collected from 33 other countries. The water samples were analyzed for 27 dissolved inorganic components, with a primary focus on the distribution of major and trace components, including Ca, Mg, K, Na, Cl-, NO3-, SO42-, total-hardness, Al, Fe, Cu, Mn, and Zn. The Japanese tap water hardness was 50.5 ± 30.2 (± 1σ SD) mg/L, classified as soft water according to the World Health Organization (WHO) classification. The average content of each major component in Japanese tap water tended to be lower than those in other countries. Furthermore, Piper trilinear diagrams were used to categorize Japanese tap water types. The dominating water types were the Ca-HCO3 and mixed types, which had a nationwide distribution. Japanese tap water generally complied with Japanese and WHO drinking water criteria, with only 1% (17/1564 sites) of the samples exceeding water quality standards. Observations of water quality changes for 2 years at three household faucets revealed that fluctuations in major components and trace metals (Al, Fe, Cu, Mn, and Zn) varied in different patterns. This suggests that the behavior of trace metal elements is influenced by local infrastructure, such as supply pipes, distinct from the variability in source water quality.
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  • 文章类型: Journal Article
    2020年4月,启动了原住民和托雷斯海峡岛民COVID-19护理点(POC)检测计划,以改善原住民社区中基于分子的SARS-CoV-2快速检测的机会。在容量上,该计划覆盖了澳大利亚的105个医疗服务。一项外部审查估计,该计划有助于在偏远社区首次感染后的40天内避免23,000至122,000例COVID-19感染,相当于节省3.37亿至18亿澳元的成本。对于本计划的质量管理至关重要,与澳大利亚皇家病理学家学院质量保证计划(RCPAQAP)一起开发了定制的外部质量评估(EQA)计划。从2020年7月到2022年5月,SARS-CoV-2EQA参与率为93%至100%。有效EQA结果的总体一致性很高(98%),在第一次调查后,性能有所提高。这些结果与12个澳大利亚和4个新西兰实验室在2020年3月进行的3项SARS-CoV-2RNAEQA调查的结果一致,表明初级保健环境中的SARS-CoV-2RNAPOC测试可以按照等效的实验室分析标准进行。更广泛地说,本研究强调了质量管理实践在现实测试环境中的价值,以及持续参与EQA计划的益处.
    In April 2020, the Aboriginal and Torres Strait Islander COVID-19 Point-of-Care (POC) Testing Program was initiated to improve access to rapid molecular-based SARS-CoV-2 detection in First Nations communities. At capacity, the program reached 105 health services across Australia. An external review estimated the program contributed to averting between 23,000 and 122,000 COVID-19 infections within 40 days of the first infection in a remote community, equating to cost savings of between AU$337 million and AU$1.8 billion. Essential to the quality management of this program, a customised External Quality Assessment (EQA) program was developed with the Royal College of Pathologists of Australasia Quality Assurance Programs (RCPAQAP). From July 2020 to May 2022, SARS-CoV-2 EQA participation ranged from 93 to 100%. Overall concordance of valid EQA results was high (98%), with improved performance following the first survey. These results are consistent with those reported by 12 Australian and 4 New Zealand laboratories for three SARS-CoV-2 RNA EQA surveys in March 2020, demonstrating that SARS-CoV-2 RNA POC testing in primary care settings can be performed to an equivalent laboratory analytical standard. More broadly, this study highlights the value of quality management practices in real-world testing environments and the benefits of ongoing EQA program participation.
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  • 文章类型: Journal Article
    UNASSIGNED: Telephone counseling is an important form of support for informal carers of persons with dementia. The quality and benefit of this kind of service have rarely been evaluated in Germany.
    UNASSIGNED: We developed a survey to assess the quality of telephone counseling. We conducted an online survey among 201 users of the telephone hotline \"Alzheimer-Telefon\" (Alzheimer\'s telephone service) provided by the German Alzheimer\'s Association after the consultation. The aim of the study was to determine whether this form of telephone support meets certain quality criteria and the callers\' needs.
    UNASSIGNED: Of the 201 participants, 80% were female. The mean age of the callers was 51 years. 74% of cases were one-off consultations; 26% of the callers sought advice twice or more often. The most common reasons for calling included behavioral changes (45%) and finding a nursing home (41%). Other family members were significantly (p=0.036) more likely to seek local respite options. Based on the 201 online questionnaires evaluated, most callers were highly satisfied with the counseling services provided by the Alzheimer\'s telephone service. Those seeking advice were particularly satisfied with the appreciative and empathetic communication style of the advisors and their professional competence. This also applies to the accessibility of the telephone. More than three quarters were fully satisfied with the information they received. Almost half of the callers were sure that the advice would help to solve their issue. 14% of people seeking advice were uncertain about how to implement the suggested solutions.A further survey would be worthwhile to determine to what extent the topics of the consultation can be implemented. The feedback from relatives who use the Alzheimer\'s telephone repeatedly could be used for this purpose - the repetition rate is currently 25% and the trend is rising. Results could be interesting for successful counseling and for the development of further support services.
    UNASSIGNED: The telephone hotline is a useful component of dementia care in Germany and an important contribution to the National Dementia Strategy.
    UNASSIGNED: Zu den Unterstützungsmöglichkeiten für Angehörige von Menschen mit Demenz zählt die telefonische Beratung. Seit 2002 bietet die Deutsche Alzheimer Gesellschaft Selbsthilfe Demenz e.V. mit ihrem Alzheimer-Telefon telefonische Beratung rund um Demenz kostenlos und bundesweit an. Qualität und Nutzen solcher Dienste wurden hierzulande bisher selten untersucht.
    UNASSIGNED: Die vorliegende Studie zur kostenlosen Beratung am Alzheimer-Telefon der Deutschen Alzheimer Gesellschaft untersuchte, inwieweit die Beratungsleistung Qualitätskriterien telefonischer Beratungsangebote sowie den Erwartungen und Bedürfnissen der Ratsuchenden entspricht. Hierzu wurde ein Online-Fragenkatalog konzipiert, auf den die Anrufenden im Nachgang an das Beratungsgespräch Zugriff hatten.
    UNASSIGNED: Von den 201 Teilnehmer:innen waren 80% weiblich; das Durchschnittsalter der Anrufer lag bei 51 Jahren. Bei 74% der Fälle handelte es sich um einmalige Beratungen, 26% der Anrufer suchten zweimal oder öfter Rat. Zu den häufigsten Gründen für den Anruf gehörten Verhaltensänderungen (45%) und die Suche nach einem Pflegeheim (41%). Andere Familienmitglieder waren signifikant (p=0.036) häufiger auf der Suche nach örtlichen Betreuungsmöglichkeiten. Auf Basis der 201 ausgewerteten Online-Fragebögen ergab sich eine hohe allgemeine Zufriedenheit der überwiegenden Mehrheit der Anrufenden mit den Beratungsgesprächen. Insbesondere mit dem wertschätzenden und empathischen Kommunikationsstil der Berater:innen sowie deren fachlicher Kompetenz waren die Ratsuchenden besonders zufrieden. Dies galt ebenso für die Erreichbarkeit des Telefons. Die Erwartungen der Anrufer:innen an den Anruf waren breit gestreut und reflektierten die vielfältigen Lebensbereiche, die im Rahmen einer Demenz betroffen sein können. Mehr als 75% der Anrufenden waren mit der Qualität der erhaltenen Informationen voll zufrieden. Knapp die Hälfte der Anrufenden waren sich sicher, dass die Beratung zur Lösung ihres Anliegens beitragen würde. 14% der Ratsuchenden war sich jedoch unsicher, inwieweit es ihnen gelingen würde, die besprochenen Lösungswege umzusetzen. Was es zusätzlich braucht, um die in der Beratung besprochenen Entlastungs- und Lösungsvorschläge umzusetzen, wäre eine weitere Erhebung wert. Untersucht werden könnten dafür die Rückmeldungen von Angehörigen, die das Alzheimer-Telefon wiederholt nutzen – die Wiederholungsrate liegt derzeit bei 25%, Tendenz steigend. Dies könnte interessant sein sowohl für die Beratung als auch für die Weiterentwicklung entsprechender Unterstützungsangebote. Verbesserungsmöglichkeiten des Alzheimer-Telefons könnten in dem verstärkten Angebot von Folgegesprächen, einem Fokus auf Angehörige mit besonderem Unterstützungsbedarf (bspw. frühe Diagnose oder nicht verwandte Personen, Personen mit Migrationshintergrund) und der Intensivierung der Zusammenarbeit mit nachgeschalteten Beratungsformen am Wohnort der Anrufenden bestehen.
    UNASSIGNED: Die telefonische Beratung ist ein nützlicher Baustein der Demenzversorgung in Deutschland und ein wichtiger Beitrag im Rahmen der Nationalen Demenzstrategie – insbesondere im Hinblick auf den besonderen Bedarf an Information und Beratung von Angehörigen mit einer Demenzerkrankung.
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  • 文章类型: Journal Article
    掌握和认识自己和人类情感的能力,使用认知意识来控制行动和行为,和改变情绪以应对困难的情况被称为情绪智力(EI)。感知到的压力与医疗保健学生的抑郁水平更高有关。这项研究旨在评估EI,感知压力(PS),和牙科本科生的生活质量评估(LQA),并确定这些因素是如何相互联系的。
    在牙科学生的临床前和临床年中组织了自我报告的横断面研究,以检查他们的情绪智力和压力应对能力。大约146名学生参加了这项研究,年龄从19岁到25岁,不分性别。科恩为学生提供了舒特情绪智力和感知压力量表工具(PSS10),并使用世界卫生组织生活质量(WHOQOL-BREF)工具检查了有助于学生生活质量的特征。
    该研究包括146名个体,男性38人(26.02%),女性108人(73.97%),无反应率为2.66%。情绪智力和感知压力之间的相关性具有统计学意义(P=0.000),感知压力和生活质量(P=0.02),情绪智力和生活质量(P=0.008)。对EI影响的统计分析,PS,按学年分析的LQA无显著性差异(P>0.05)。
    由于他们工作的时间限制,牙科培训可能会非常紧张,然而,定期评估学生的表现和相关因素将有助于我们了解学生在充满挑战的环境中的表现。
    UNASSIGNED: The capacity to grasp and recognize one\'s own and human feelings, use cognitive awareness to control actions and behavior, and modify moods in response to difficult situations is known as emotional intelligence (EI). Perceived stress has been linked to higher levels of depression among healthcare students. This study set out to assess EI, perceived stress (PS), and life quality assessment (LQA) among dental undergraduates and to ascertain how these factors are linked to one another.
    UNASSIGNED: The self-reported cross-sectional research was organized among preclinical and clinical years of dental students to examine their emotional intelligence and stress-coping capacity. About 146 students participated in the study, with ages ranging from 19 to 25, irrespective of gender. The students were given the Schutte Emotional Intelligence and Perceived Stress Scale tools (PSS10) by Cohen, and with World Health Organization Quality of Life (WHOQOL-BREF) tool examined the characteristics that contribute to life quality among students.
    UNASSIGNED: The study included 146 individuals, 38 males (26.02%) and 108 females (73.97%), with an unresponsiveness rate of 2.66%. The correlation revealed statistically high significance among emotional intelligence and perceived stress (P = 0.000), perceived stress and life quality (P = 0.02), and emotional intelligence and life quality (P = 0.008). The statistical analysis of the influence of EI, PS, and LQA on academic year-wise analysis determined non-significant (P > 0.05).
    UNASSIGNED: Due to the time constraints of their job, dentistry training may be highly stressful, yet regular evaluations of student performance and the accompanying factors would help us to understand how students behave in challenging circumstances.
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  • 文章类型: Journal Article
    虽然大型语言模型(LLM)在技术进步和能力方面得到了积极的考虑,人们相当反对机器做出道德决定。但是,尚未对LLM更有可能发生算法厌恶或算法欣赏的情况进行充分的研究。因此,这项研究的目的是调查具有道德或技术主题的文本,据称是由人类作者或ChatGPT撰写的,被感知。
    在一项随机对照实验中,n=164名参与者阅读了六篇课文,其中三个有道德主题,三个有技术主题(预测文本主题)。每个文本的所谓作者被随机标记为“ChatGPT”或“人类作者”(预测作者身份)。我们捕获了三个因变量:作者能力评估,内容质量评估,和参与者打算在假设的大学课程中提交文本(共享意图)。我们假设相互作用效应,也就是说,我们预计ChatGPT在道德主题上的得分低于所谓的人类作者,在技术主题上的得分高于所谓的人类作者,反之亦然。
    我们只发现对感知的作者能力有很小的交互作用,p=0.004,d=0.40,但对于其他因变量则不是。然而,在所有因变量中,与所谓的人类作者相比,ChatGPT始终贬值:作者身份对评估作者能力有主要影响,p<0.001,d=0.95;对于内容质量评估,p<0.001,d=0.39;对于共享意图,p<0.001,d=0.57。文本主题对文本质量的评估也有很小的主要影响,p=0.002,d=0.35。
    这些结果更符合先前关于算法厌恶的发现,而不是算法欣赏。我们讨论了这些发现对接受使用LLM进行文本撰写的影响。
    UNASSIGNED: While Large Language Models (LLMs) are considered positively with respect to technological progress and abilities, people are rather opposed to machines making moral decisions. But the circumstances under which algorithm aversion or algorithm appreciation are more likely to occur with respect to LLMs have not yet been sufficiently investigated. Therefore, the aim of this study was to investigate how texts with moral or technological topics, allegedly written either by a human author or by ChatGPT, are perceived.
    UNASSIGNED: In a randomized controlled experiment, n = 164 participants read six texts, three of which had a moral and three a technological topic (predictor text topic). The alleged author of each text was randomly either labeled \"ChatGPT\" or \"human author\" (predictor authorship). We captured three dependent variables: assessment of author competence, assessment of content quality, and participants\' intention to submit the text in a hypothetical university course (sharing intention). We hypothesized interaction effects, that is, we expected ChatGPT to score lower than alleged human authors for moral topics and higher than alleged human authors for technological topics and vice versa.
    UNASSIGNED: We only found a small interaction effect for perceived author competence, p = 0.004, d = 0.40, but not for the other dependent variables. However, ChatGPT was consistently devalued compared to alleged human authors across all dependent variables: there were main effects of authorship for assessment of the author competence, p < 0.001, d = 0.95; for assessment of content quality, p < 0.001, d = 0.39; as well as for sharing intention, p < 0.001, d = 0.57. There was also a small main effect of text topic on the assessment of text quality, p = 0.002, d = 0.35.
    UNASSIGNED: These results are more in line with previous findings on algorithm aversion than with algorithm appreciation. We discuss the implications of these findings for the acceptance of the use of LLMs for text composition.
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  • 文章类型: Journal Article
    最近对点云作为成像模态的兴趣的增加已经促使诸如JPEG和MPEG的标准化团体发起旨在开发点云的压缩标准的活动。有损压缩通常会引入视觉伪影,从而对媒体的感知质量产生负面影响,只有通过主观视觉质量评估实验才能可靠地测量。虽然MPEG标准在以前的研究中已经在多个场合进行了主观评估,还没有工作评估最近的JPEGPleno标准的性能相比,他们。在这项研究中,对JPEG和MPEG点云压缩标准进行了综合性能评价。首先借助客观的质量度量来分析不同配置参数对编解码器性能的影响。此分析的结果用于为每个编解码器定义三种速率分配策略,用于以四个目标速率压缩一组点云。然后根据两个主观质量评估方案对该组失真点云进行主观评估。最后,获得的结果用于比较这些压缩标准的性能,并得出有关最佳编码实践的见解。
    The recent rise in interest in point clouds as an imaging modality has motivated standardization groups such as JPEG and MPEG to launch activities aiming at developing compression standards for point clouds. Lossy compression usually introduces visual artifacts that negatively impact the perceived quality of media, which can only be reliably measured through subjective visual quality assessment experiments. While MPEG standards have been subjectively evaluated in previous studies on multiple occasions, no work has yet assessed the performance of the recent JPEG Pleno standard in comparison to them. In this study, a comprehensive performance evaluation of JPEG and MPEG standards for point cloud compression is conducted. The impact of different configuration parameters on the performance of the codecs is first analyzed with the help of objective quality metrics. The results from this analysis are used to define three rate allocation strategies for each codec, which are employed to compress a set of point clouds at four target rates. The set of distorted point clouds is then subjectively evaluated following two subjective quality assessment protocols. Finally, the obtained results are used to compare the performance of these compression standards and draw insights about best coding practices.
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