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Modeling the Social Reinforcement of Misinformation Dissemination on Social Media

Journal of Behavioral and Brain Science 2022年第11期12卷 533-547页

作者： Ashleigh T. Aston ink bowl publishing New York NY USA

Despite the salience of misinformation and its consequences, there still lies a tremendous gap in research on the broader tendencies in collective cognition that compels individuals to spread misinformation so excessively. This study examined social learning as an antecedent of engaging with misinformation online. Using data released by Twitter for academic research in 2018, Tweets that included URL news links of both known misinformation and reliable domains were analyzed. Lindström’s computational reinforcement learning model was adapted as an expression of social learning, where a Twitter user’s posting frequency of news links is dependent on the relative engagement they receive in consequence. The research found that those who shared misinformation were highly sensitive to social reward. Inflation of positive social feedback was associated with a decrease in posting latency, indicating that users that posted misinformation were strongly influenced by social learning. However, the posting frequency of authentic news sharers remained fixed, even after receiving an increase in relative and absolute engagement. The results identified social learning is a contributor to the spread of misinformation online. In addition, behavior driven by social validation suggests a positive correlation between posting frequency, gratification received from posting, and a growing mental health dependency on social media. Developing interventions for spreading misinformation online may profit by assessing which online environments amplify social learning, particularly the conditions under which misinformation proliferates.

关键词： Social Reinforcement Learning Misinformation Online Computational Models of Cognition

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A Study of Screen Printability of UV Soy ink on Plastics

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通讯和计算机（中英文版） 2010年第1期7卷 81-84页

作者： Chung-Hui Chen Dept. of Graphic Communications and Digital publishing Shih Hsin University Taipei Taiwan China

In order to improve environmental pollution of printing industry, it has developed new environmental ink which is called UV Soy ink. The purpose of this research is to investigate screen printability of UV Soy ink. To print UV Soy ink on four different plastics for hardness tested, strips tested, abrasion resistance tested, and solvent resistance tested. The test results will be compared with UV ink. According to experimental results and finding out: (1) For hardness tested, the printability of UV ink and UV Soy ink are not different. (2) For strips tested, abrasion resistance tested, and solvent resistance tested, the printability of UV ink is a little better than UV Soy ink. But to respond to the environmental issue and the sustainable development of printing industry, it s still worthwhile to promote UV Soy ink and use it.

关键词：大豆油墨印刷适性紫外线塑料 UV油墨印刷硬度测试筛选耐溶剂性

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Printing inks＇ Characteristics

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材料科学与工程（中英文B版） 2013年第7期3卷 464-468页

作者： Kateryna Savchenko Olena Velychko Reprography Department The Publishing and Printing Institute of the National Technical University of Ukraine "Kyiv PolytechnicInstitute " Kiev 03056 Ukraine

Hybrid inks are often used for the advertising products because a variety of effects can serve as an added value. Much attention is paid to the inks application settings, using the hybrid inks at the hi-tech offset equipment and color features of images. The thorough research of the different printing settings with the use of modern inks and efficient equipment, is an urgent problem. Work reveals some new facts about characteristics for printability such as emulsification and influences of ink’s additives on color characteristics of imprints. The experimental inks were developed to define the technological settings of offset printing. The result of research showed that conventional inks have the considerably high degree of emulsification comparing to experimental hybrid inks. Also it was discovered that the UV components influence the emulsification. An optimal water-ink balance and stable printing process can be achieved with adding of 2%-10% of the UV-component to the hybrid inks. inks application and drying settings as well as color features of the imprints are analyzed in the context of offset printing.

关键词：油墨特性印刷适性混合油墨程序设置胶印设备油墨乳化颜色特征附加价值

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Adjustment of ink and Water Supply in Offset Printing

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材料科学与工程（中英文B版） 2013年第8期3卷 545-549页

作者： Bogdan Kushlyk Reprography Department The Publishing and Printing Institute of the National Technical University of Ukraine "Kyiv Polytechnic Institute " Kyiv 03056 Ukraine

The stochasticity of the ink-water balance in the offset printing process is actually a fact. We have only the rotating speed of the duct dampening roller adjustment to apply the water to the printing plate, and against we have the ink zones which can be opened differently depending on the printing elements quantity. This means that in any way of settings we will definitely have a certain constant amount of water emulsified in a different quantity of ink. This should be so far acceptable as long as we have the wide-latitude inks in terms of tackiness, water acceptance and other rheological properties. As nowadays all modern inks are a little changed in terms of ISO 12647-2 dot gain requirements and they are now more sensitive to the very exact ink/water regulations. If looking in the very idle printing element we can consider it as a figure filled with ink-water emulsion. The water-ink flow can be described with the Ostrogradsky-Gauss formulae: ν ν ?. A divergence parameter shows the flow density in the field ν which is limited by ?1 and ?2 surfaces on the continuously-differentiated vector-function which should be determinative in this very point of the field. In terms of vector field flow we can explain the ink/water emulsion transfer from the printing plate to the blanket and afterwards to the imprint using also the theory of mathematical delays concerning the instability of regulations feedback. Therefore we can predict the outcome for ink emulsification in the very exact point in the printing plate and in general also.

关键词：油墨乳化水供应调整胶印矢量函数调制解调器水包油乳液水墨平衡

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