违反食品召回义务侵权损害赔偿责任研究

《食品安全法》的出台明确规定了食品召回制度,确立了食品召回的法定义务,违反该项义务将引起侵权损害赔偿责任,这与产品侵权责任有联系,但又有区别,应从食品召回和侵权责任相结合的路径对之进行认真地思考。     

美国FDA食品召回分析及提示——以2019年为证

目的 研究美国FDA食品召回现状,为我国开展相应工作提供可借鉴的经验.方法 从FDA官方网站收集2019年食品召回信息,对数据进行筛选、整理,用EXCEL 2013进行数据分析.结果 从2019年FDA发布的每周执法报告中收集到的有效数据,共涉及461起召回事件和1734种次召回食品.约60％的召回属于Ⅱ级,Ⅰ级大约占...     

文本相似性度量中参数相关性与优化配置研究

针对文本相似性度量中的相似度阈值、准确率、召回率、shingle滑动窗口大小、shingle权重系数和文本属性等参数相互影响、关系复杂的问题,研究了这些参数之间的相关性,并结合实际应用需求,提出各参数可优化配置的建议,分析与设计了相似度阈值可适应文本篇幅属性的相似性度量算法.通过某基金2009年的7378个项目申请书的比对分析,结果表明:提出的算法不但适用于大规模的文本集合,而且在短小的文本集合中进行相似性度量也具有很高的应用价值,其准确率和召回率均可高达95%以上.     

一种基于分组的语义对等网络

以语义网络理论为基础,结合GCNET拓扑结构,提出一种基于分组的语义对等网络——Semantic GCNET,充分利用GCNET网络具有小世界特征的优点,确保其搜索限制在与查询主题相关的局部节点子集中,解决其他一些语义对等网络对主题群搜索低效的问题,克服一些语义对等网络仅支持精确匹配查找的缺点。实验结果表明,Semantic GCNET具有高效的语义查询性能和查全率。     

面向完美回忆的时态认知逻辑

传统时态认知逻辑对完美回忆的刻画是狭隘的,并不能完整表达主体记得自己先前的认知状态.新系统S5tCt将认知与时态融合进同一个算子中,个体知识、普遍知识和公共知识都被时间点所标注.S5tCt系统从技术上实现了每个个体（群体）都可以完美回忆自己在之前所有时刻上的认知状态.利用典范模型技术可以证明,S5tCt系统在等价且单调递减的框架类上是完全的.     

Context retrieval and context change in free recall: Recalling from long-term memory drives list isolation.

Three experiments used the "list-before-the-last" free recall paradigm (Shiffrin, 1970) to investigate retrieval for context and the manner in which context changes. This paradigm manipulates target and intervening list lengths to measure the interference from each list, providing a measure of list isolation. Correct target list recall was only affected by the target list length when participants engaged in recall between the lists, whereas there were effects of both list lengths with other activities. This suggests that the act of recalling drives context change, thus isolating the target list from interference. Correspondingly, incorrect recall of intervening list items was affected only by the length of the intervening list when recall occurred between the lists, but was otherwise affected by both list lengths. Concurrent with these changes in context similarity, there were apparent changes in context retrieval, as indicated by the overall levels of target retrieval versus intervening recall. A multinomial model of sampling and recovery was implemented to assess the adequacy of this account and to quantify context similarity and context retrieval. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

基于Dense-YOLOv3的车型检测模型

针对传统YOLOv3的网络结构存在曝光过度或光线较暗等异常图片在提取特征时鲁棒性较差,导致车型识别率低下的问题,提出了一种用于交通车辆检测的Dense-YOLOv3模型.该模型集成了密集卷积神经网络DenseNet和YOLOv3网络的特点,加强了卷积层之间的车型特征传播和重复利用,提高了网络的抗过拟合性能;同时,对目标车辆进行了不同尺度的检测,构建了交叉损失函数,实现了车型的多目标检测.经过在BIT-Vehicle标准数据集上对模型进行训练和测试,实验结果表明,基于Dense-YOLOv3车型检测模型平均精度达到了96.57%,召回率为93.30%,表明了该模型对车辆检测的有效性和实用性.     

The Effects of Age and Dementia of the Alzheimer's Type on Phonological False Memories.

The authors conducted 3 experiments that examined the effects of age and dementia of the Alzheimer's type (DAT) on phonological false memories. In addition, the study was designed to investigate the role of inhibitory control in mediating phonological false memories. In Experiment 1, both young-old and old-old participants exhibited increased susceptibility to false remembering, compared with young adults. In Experiment 2, auditory Stroop interference was used as an index of inhibitory abilities and was found to account for a significant percentage of the variance in false recollection. Experiment 3 provided converging evidence for the importance of inhibitory control in phonological false memories by demonstrating that DAT patients are more susceptible to false recall and recognition than healthy older adults. The results are discussed within the inhibitory deficit framework of cognitive aging. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Storage and retrieval of associative clusters: A stages-of-learning analysis of associative memory traces.

In this research, the assumptions underlying the unitary trace theory of item representation and acquisition were tested in two cued-recall experiments in which the degree of preexperimental knowledge (typicality) was manipulated. Subjects learned lists of word triads (each of which consisted of a single cue and two targets) to a stringent acquisition criterion. In Experiment 1, typicality was manipulated in the absence of semantic relationships between members of the associative clusters. In Experiment 2, semantic relationships were present among cluster members, and preexperimental knowledge was manipulated by varying the degree of intracluster category membership as measured by whether cue and target items were typical or atypical category exemplars. In both experiments a mathematical model that embodies stages-of-learning distinctions was used to analyze the acquisition data. The results indicated that (1) cues and targets were represented in a single holistic memory trace, and (2) the manipulation of the degree of preexperimental knowledge affected both trace storage and retrieval learning, but had only a minimal impact on retrieval performance between the time a trace was stored and the time retrieval learning was complete. It was argued that these findings are consistent with a single unitary trace interpretation, namely, the modified storage-retrieval model. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effects of alcohol on person perception: A social cognitive neuroscience approach.

The acute effects of alcohol on cognitive processing of expectancy violations were investigated using event-related brain potentials and a cued recall task to index attentional and working memory processes associated with inconsistency resolution. As predicted, expectancy-violating behaviors elicited larger late positive potentials (LPP) and were recalled better than expectancy-consistent behaviors. These effects were moderated by alcohol and the valence of initial expectancies. For placebo group participants, positive targets performing negative behaviors elicited the largest LPP responses and were recalled best. For those in the alcohol groups, negative targets behaving positively elicited the largest LPP and recall responses. These findings suggest that alcohol does not globally impair working memory processes in person perception but instead changes the nature of valenced information processing. Findings are discussed in the context of alcohol's effects on working memory processes, reward sensitivity, and the prefrontal cortical structures thought to mediate them. (PsycINFO Database Record (c) 2010 APA, all rights reserved)