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关键词： 技术水平   大口黑鲈   养殖产业   养殖产量   养殖业   养殖优势   产业的发展   问题及发展  

摘要： 随着养殖技术水平的提高,大口黑鲈养殖产量也在不断增加,然而,目前产业的发展还存在许多阻碍。本文指出了大口黑鲈养殖产业发展的优势及存在问题,针对这些问题提出可行的解决措施,以促进大口黑鲈养殖业的发展。

关键词： 师范专业认证   专业建设   计算机   人才培养  

摘要： 计算机科学与技术(师范)专业旨在为中小学信息技术教育培养优秀师资.随着人工智能和大数据等信息技术在中小学的普及,计算机科学与技术师范生的培养更需要适应基础教育的需求.同时,师范专业认证的开展对计算机科学与技术(师范)专业的建设提出更高的要求.因此,如何构建一种全新的人才培养模式对计算机科学与技术专业提出一种新的挑战.本文以淮北师范大学为例,基于“自主发展的互动性”教学模式,对计算机科学与技术(师范)专业的人才培养模式进行改革,在培养方案制定、课程设置和实践能力培养等方面提出一些解决的策略.

关键词： Task analysis   Predictive models   Social network services   Peer-to-peer computing   Optimization   Computational modeling   Computer science   Link prediction   network alignment   cross-network embedding   skip-gram   biased random walk  

摘要： Link prediction and network alignment are two fundamental and interleaved tasks in network analysis. In this paper, we propose a novel cross-network embedding model under the Skip-gram framework, which alternately performs link prediction and network alignment by joint optimization. Vertex sequences, obtained via a biased random walk based on empirical mixture distributions, are used to train a Skip-gram based node embedding model. On one hand, based on the similarity in embedding space, network alignment can be effectively performed either with the initial ground truth alignments as seeds or from scratch. On the other hand, the proposed link prediction model involves training a supervised classifier by sampling a set of positive and negative edges. We also modify and incorporate the Collective Link Fusion (CLF) method under a Skip-gram framework and show that the new method can achieve better results in both tasks. Extensive experimental results show the state-of-the-art performance of our methods.

关键词： Participatory design   Computer science   Curriculum design   Culturally relevant  

摘要： Given the importance of broadening participation in computer science classes, this paper investigates the use of participatory design as a means to develop a culturally relevant computer science curriculum. The Scratch Encore curriculum is designed for 5th–8th grade (10–14 years old) learners and seeks to present computer science concepts in a relevant way that allows for both teacher and student flexibility in the lesson themes and student created project content. To create the curriculum, we ran a series of participatory design sessions with various educational stakeholders including students, teachers, administrators, and parents. In this article, we explore the ways that ideas from the participatory design sessions shaped the final curriculum. Specifically, we focus on the use of participatory design as a context for culturally relevant idea generation and the various ways these ideas can be incorporated into instructional materials. We present these methods of integration as potential means through which others seeking to create culturally relevant materials can utilize participatory design and stakeholder voices within their design process.

关键词： Protocols   Directed graphs   Computer science   Computational modeling   Voltage measurement   Timing   Security   Fault-tolerant distributed algorithms   multi-agent systems   resilient real-valued consensus   mobile adversary agents   malicious agents   network connectivity  

摘要： This article addresses novel real-valued consensus problems in the presence of malicious adversaries that can move within the network and induce faulty behaviors in the attacked agents. By adopting several mobile adversary models from the computer science literature, we develop protocols which can mitigate the influence of such malicious agents. The algorithms follow the class of mean subsequence reduced (MSR) algorithms, under which agents ignore the suspicious values received from neighbors during their state updates. Different from the static adversary models, even after the adversaries move away, the infected agents may remain faulty in their values, whose effects must be taken into account. We develop conditions on the network structures for both the complete and non-complete directed graph cases, under which the proposed algorithms are guaranteed to attain resilient consensus. The tolerance bound for network conditions becomes more strict as the adversaries are allowed to have more power. Extensive simulations are carried out over random graphs to verify the effectiveness of our approach when the information of the adversarial agents in terms of their models and numbers is unknown to the agents.

关键词： 工程教育认证   复杂工程问题   课程体系  

摘要： 课程教学是培养学生解决复杂工程问题能力的重要手段,符合要求的课程体系是通过工程教育认证的基础。本文根据培养目标、毕业要求、课程体系三者之间的支撑关系,阐述了计算机科学与技术专业课程体系的构建及持续改进过程,并进行了实施效果分析。实践结果表明,新构建的课程体系能够有效地支撑毕业要求及培养目标的达成。

关键词： Visualization   Earth   Three-dimensional displays   Skeleton   Feature extraction   Fingers   Computer science   Viscous and gravitational fingering   topological and geometric data analysis   ridge detection   spatio-temporal visualization   tracking graph  

摘要： Viscous and gravitational flow instabilities cause a displacement front to break up into finger-like fluids. The detection and evolutionary analysis of these fingering instabilities are critical in multiple scientific disciplines such as fluid mechanics and hydrogeology. However, previous detection methods of the viscous and gravitational fingers are based on density thresholding, which provides limited geometric information of the fingers. The geometric structures of fingers and their evolution are important yet little studied in the literature. In this article, we explore the geometric detection and evolution of the fingers in detail to elucidate the dynamics of the instability. We propose a ridge voxel detection method to guide the extraction of finger cores from three-dimensional (3D) scalar fields. After skeletonizing finger cores into skeletons, we design a spanning tree based approach to capture how fingers branch spatially from the finger skeletons. Finally, we devise a novel geometric-glyph augmented tracking graph to study how the fingers and their branches grow, merge, and split over time. Feedback from earth scientists demonstrates the usefulness of our approach to performing spatio-temporal geometric analyses of fingers.

关键词： 新工科   CDIO   人才培养模式改革  

摘要： 针对目前地方院校计算机科学与技术专业人才培养中存在的培养目标不明确、理论与实践学时安排不均以及培养脱离职业岗位需求等问题,提出面向新工科建设,将CDIO工程教育模式本地化,从培养目标拟定、课程教学优化、工程教学规划和考核评估体系四个方面改革专业人才培养模式,并最终能指导具体实践。

关键词： Quantum Computing   Computer Science   Self-Learning   Technology Revolution  

摘要： Self-learning is one of the most important scientific methods that helps develop sciences, as it derives from the desire and interests of the individual. However, self-learning loses importance if it does not follow the scientific methodology for building and organizing information. The case becomes harder if the science is new and few scientific sources are available. Quantum computing is one of the new sciences in computer science and needs the support of specialists to develop it. Quantum computing overlaps with many sciences such as physics, chemistry, and mathematics, so any student in one of the previous disciplines may lose the correct self-learning path to find themselves learning the details of another discipline that does not achieve their goals. This article motivates students and those interested in computer science to begin studying the science of quantum computing and choose the same specialization that suits their interests. The article also provides a roadmap for self-learning steps to protect the learner from losing the correct learning path. I have categorized the stages of learning quantum computing into four steps through which all the essential basics can be learned, provided the goals mentioned in each stage which should be achieved. The learning strategy proposed in this article corresponds with individuals’ self-learning rules. Through my personal experience, the proposed learning strategy has proven its effectiveness in building information in an enjoyable scientific way.