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81.
As the commonest part of social networks, sharing images in social network not only provides more information, but also gives more intuitive view than text. However, images also can leak out information more easily than text, so the audit of image content is particularly essential. The disclosure of a tiny image, which involves sensitive information about individual, society even the state, may trigger a series of serious problems. In this paper, we design a kind of intelligent image firewall to detect and filter sensitive or privacy images. Two different approaches of the firewall are proposed. In the first approach, we propose an image firewall based on joint sparse representation, which can provide accurate and robust privacy prediction, and also can provide rich spatial relationship information. In the second approach, we propose a method based on the deep learning (Faster RCNN), which can predict the privacy relationships or actions (like kiss, hug and hand in hand) among the persons of an image. Experimental results show the effectiveness of the two kinds of approaches. 相似文献
82.
决策是指决策者对将产生不同结果的多个备择方案的评估与选择。无论决策结果涉及的是金钱、健康、环境或是其他事物,它们都同时具有多重属性,如发生的概率,发生的时间,发生的地点,发生在谁身上等,这些属性会和结果量一起影响人们对结果效用的评价和对备择方案的选择。以往有关风险决策、跨期决策和社会决策的理论分别探究结果的概率属性、时间属性和人际属性如何与结果量一起共同决定人们的效用评估与选择,并提出了各自不同的决策模型。然而,心理距离理论则认为,决策结果的概率、时间、空间、人际等属性本质上都可被表征为结果在决策者心中的心理距离。这意味着风险、跨期和社会决策模型有可能经由心理距离而得以统一。近几年来,众多研究围绕这一思想开展了一系列实验研究,分析了各种心理距离的同质性,探索了基于心理距离的心理折扣现象及其规律,探讨了时间、概率、人际、空间距离对个体决策的影响。在此基础上,未来研究还应更加重视对多特征决策的研究,探索心理距离之间的替换率和通币问题,探究心理距离的本质及其整合方式,以期形成统一的决策理论模型。 相似文献
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84.
AbstractAlthough open-mindedness is generally valued, people are not equally open-minded in all situations. Open-mindedness is viewed as socially desirable when individuals encounter viewpoints that are compatible with conventional social norms. However, open-mindedness is viewed in less desirable terms when individuals encounter viewpoints that undermine these norms. The perceived desirability of open-mindedness is also influenced by the individual’s personal attitudinal convictions. Individuals ‘inflate’ the normative appropriateness of open-mindedness when it serves to reinforce their convictions, but devalue the normative appropriateness of open-mindedness when it serves to contradict these convictions. Conversely, normative prohibition of closed-mindedness is exaggerated when a closed-minded orientation threatens the individual’s personal attitudinal convictions, but is minimized (or reversed) when a closed-minded orientation reinforces these convictions. Paradoxically, the perceived appropriateness of open-mindedness is engendered (at least in part) by the motivation to confirm one’s prior attitudinal convictions. Evidence of this attitude justification effect is obtained in two experiments. 相似文献
85.
A common ground in clinical discussion groups: Intersubjective resonance and implicit operational theories
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Ricardo Bernardi 《The International journal of psycho-analysis》2017,98(5):1291-1309
Clinical discussion groups based on the Three‐Level Model for Observing Patient Transformations (3‐LM) enable us to reflect on the clinical common ground shared by psychoanalysts who have different theoretical frameworks. The very existence of this common ground is controversial. While analysts such as Wallerstein support it, others, like Green, think it is just a myth. In their 2005 controversy Wallerstein and Green proposed an observation procedure that might clarify this matter. This procedure bears great similarity to the one used by clinical discussion groups that apply the 3‐LM. The study of numerous theoretically heterogeneous groups that use this model shows that communication is possible in crucial areas. We may thus conclude that a partial and dynamic common ground exists. At a phenomenological level, certain fragments of material produce a shared resonance that enriches clinical understanding for the whole group. Communication is also possible with regard to the conceptualization of patient changes, although some controversial issues persist at this level. Finally, at the level of theoretical explanations, divergences concerning abstract theories do not prevent a fertile interaction among ‘in vivo’ personal implicit theories. The latter give rise to the actual operational frameworks underlying participants' approach to clinical problems. 相似文献
86.
Based on theoretical and empirical similarities between Construal level theory of psychological distance and the Need for cognitive closure (NFC) theory, it could be hypothesized that psychological distance and NFC represent constructs that overlap to some degree. Since both theories describe judgmental behavior in terms of schematic processing, we hypothesized that primacy effect, a schema-driven phenomenon, is strengthened under the heightened NFC and psychological distance. We tested this hypothesis in an impression formation experiment while manipulating psychological distance and measuring NFC. Low NFC and psychological closeness reflect preference for situationally specific, contextually rich information, and therefore their joint effect resulted in reliance on all available information regardless of their position in a sequence. High NFC and psychological distance produced a preference for clear, schematic, stable knowledge, and therefore weighed first information more, which resulted in the primacy effect. 相似文献
87.
Unilateral Fatigue Affects the Unipedal Postural Balance in Individuals With Intellectual Disability
Rihab Borji Haithem Rebai Rym Baccouch Rabeb Laatar Sonia Sahli 《Journal of motor behavior》2017,49(4):407-413
This study aimed to explore the effect of local muscle fatigue on the unipedal stance in men with intellectual disability (ID). The Centre of pressure (CoP) excursions and the isometric maximal voluntary contraction (MVC) were measured before and after a fatiguing exercise. Higher baseline values of CoP excursions and lower MVC values were recorded in the ID group. After the fatiguing exercise, this group showed higher MVC decrease and higher percentage of increase of the mean CoP velocity. In conclusion, men with ID are more vulnerable to the disturbing effects of fatigue during the unipedal stance compared to men without ID. 相似文献
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89.
Caroline Shepherd 《Psychoanalytic Psychotherapy》2017,31(1):94-117
Objectives: This systematic review aimed to critically appraise the literature on the efficacy and effectiveness of psychoanalysis, psychoanalytic and psychodynamic psychotherapy in adults with intellectual and developmental disabilities (IDD). Method: A systematic search of electronic databases was carried out. The methodological quality of the studies was assessed using a quality assessment tool and comparisons were made with a review of the quality of research on the effectiveness of cognitive behavioural therapy (CBT) for people with IDD. Results: The search yielded 13 papers which provided evidence for the effectiveness but not efficacy of psychoanalytic and psychodynamic psychotherapy; but none were found for psychoanalysis. The quality of the research was generally poor compared to the current research on the effectiveness of CBT. Conclusions: Positive outcomes have been indicated for psychoanalytic and psychodynamic psychotherapy with people with IDD. Larger scale, more controlled research is necessary to advance the evidence base. 相似文献
90.
运动表象质量与运动技能水平有关,运动表象质量随着运动技能水平的提高而上升。器械使用可使人脑产生可塑性改变,使用者会将器械纳入身体图式。然而,两者影响运动表象的神经心理机制还不清楚。本研究采用功能性磁共振成像探析篮球运动员与新手在不同持球条件下表象投篮时脑功能活动的差异。结果表明运动员表象质量较好,镜像神经系统激活高于新手;持球条件下运动员表象质量显著高于不持球条件下,镜像神经系统激活程度显著低于不持球条件下。研究说明持器械可以显著提高运动员的表象质量,器械使用带来镜像神经系统的可塑性变化。 相似文献