一类分数阶系统的辨识算法

介绍了分数阶线性定常系统的状态方程描述，并给出了其稳定性定理的一个证明．然后给出了线性定常分数阶系统的一个有效辨识算法．其基本思想是利用分数阶泊松滤波器把分数阶导数和滤波计算合并起来，只需计算1步就可以得到滤波后的分数导数，再利用最小二乘法进行系统辨识．还把辅助变量方法运用到分数阶系统的辨识上，这样即使系统中存在有色噪声，仍可以获得参数的无偏估计．最后给出了一个粘弹性系统的辨识实例．说明了上述方法的有效性．     

虚拟环境下知识熔合的产品建模

Following researches on the knowledge-based product design, product modeling based on knowledge fusion is studied in a virtual environment. Knowledge fusion is the energy sources of product innovation designs. Because a knowledge representafon method is the main content of knowledge fusion, production rule way, semantic network, predicate, object-oriented and case-based representations are discussed. Using agents with object-oriented method, the knowledge can be represented as a set. The product knowledge set is divided into two subset: text knowledge and knowledge of engineering graphics that is a different form. Manipulation of the subset knowledge and fusion method is described. The paper also describes a six-tuple function in an agent data structure. A virtual environment computation model is proposed, and a practical example given.     

S-正则半群的一个基本表示(英文)

刻划了S－正则半群上的极大幂等元分离同余并给每个S－正则半群一个基本表示。     

Using an interactive platform to recognize the intersection of social and spatial inequalities

With the creation of interactive tasks that allow students to explore spatial ways of knowing in conjunction with their other ways of knowing the world, we create a space where students can make sense of information as they organize these new ideas into their already existing schema. Through the use of a Common Online Data Analysis Platform (CODAP) and data from Public Use Microdata Areas (PUMA), students can explore the communities in which they live and work, critically examining opportunities and challenges within a defined space.     

¡Presente!: Affirming Latinx voices within health sciences library scholarship

Increasing diverse author representation within medical librarianship scholarship among BIPOC information professionals is an important endeavor that requires closer examination. This commentary looks to examine the ways in which the profession can support Latinx librarians and library workers in fully participating within the scholarly pipeline by exploring our unique and authentic voices, structural barriers, hesitation and fears, Whiteness in the profession and knowledge production, bias in the peer review process, lack of resources and support, and finally, a call to action.     

Unifying knowledge iterative dissemination and relational reconstruction network for image–text matching

Image–text matching is a crucial branch in multimedia retrieval which relies on learning inter-modal correspondences. Most existing methods focus on global or local correspondence and fail to explore fine-grained global–local alignment. Moreover, the issue of how to infer more accurate similarity scores remains unresolved. In this study, we propose a novel unifying knowledge iterative dissemination and relational reconstruction (KIDRR) network for image–text matching. Particularly, the knowledge graph iterative dissemination module is designed to iteratively broadcast global semantic knowledge, enabling relevant nodes to be associated, resulting in fine-grained intra-modal correlations and features. Hence, vector-based similarity representations are learned from multiple perspectives to model multi-level alignments comprehensively. The relation graph reconstruction module is further developed to enhance cross-modal correspondences by constructing similarity relation graphs and adaptively reconstructing them. We conducted experiments on the datasets Flickr30K and MSCOCO, which have 31,783 and 123,287 images, respectively. Experiments show that KIDRR achieves improvements of nearly 2.2% and 1.6% relative to Recall@1 on Flicr30K and MSCOCO, respectively, compared to the current state-of-the-art baselines.     

德国语义学发展的历史趋势及其内在特征——逻辑实证主义之前语义学的诞生与兴起

19世纪到20世纪初是德国语义学诞生、发展和趋向转变的历史阶段,这一时期德国语义学的历史演进秉承了德国古典哲学传统尤其是康德哲学的思想精髓,从继承和批判的两个维度开启了向现代语义学迈进的崭新路径。在此过程中,语义学家们在新兴的精确性科学如数学和几何学发展的影响下,主张通过采用清晰而完善的逻辑语形构造,以保证语义理解的系统性和严密性;同时,心理学方法也开始和语义学的分析结合起来,形成了心理和意向语义分析的早期传统。在以逻辑实证主义为标志的德国现代语义理论兴起之前,它从哲学、心理学和语言科学等各个学科当中吸取营养、开辟阵地,为现代语义学的兴起和繁荣奠定了基础,其中所蕴含的心理意向分析和语境阐释等合理性思维成为了当代科学语义学建设的理论先驱和历史渊源。     

安全关联学的创建研究

为推动安全科学发展,以安全科学研究与安全实践活动中最为普遍的安全关联现象为基础,开展构建安全关联学的学科建设研究。基于安全体系的关联特性,提出安全关联的定义,并分析其内涵、类型与特征,进而提出安全关联学的定义,分析其学科基本问题与学科基础,提取实体表达与逻辑表达等6种常用的安全关联学表达方法,并从安全教育的层次和事故预防的策略等11个不同的视角构建安全关联学的学科分支体系。研究结果表明,安全关联学研究具有深厚的现实基础与理论基础和广阔的应用与发展前景。     

心理意象溯源

从萌芽期的寓"意"之"象"、成型期的"心"中之"象"到成熟期的"表征"之"象"、回归期的"原型"之"象",心理意象的定义也日渐清晰:它是人们对过去经历过的事物在脑中留下的印象的再现,是对感知过的事物的心理表征,是人脑对事物的形象所作的抽象加工和描绘。精神分析心理学角度的意象是指人记忆和想象中的具有象征意义的形象,它能反映出人的意识或潜意识中的心理活动。     

主位推进模式与顶真辞格对比分析

主位推进模式与中文顶真辞格在语篇的结构上有相同之处。本文对此问题进行了分析,并指出可以用统一的表达式来解释阶梯型主位推进模式与顶真辞格。