Multiway join queries incur high-cost I/Os operations over large-scale data. Exploiting sharing join opportunities among multiple multiway joins could be beneficial to reduce query execution time and shuffled intermediate data. Although multiway join optimization has been carried out in MapReduce, different design principles are not considered. To bridge the gap of not considering the optimization of Big Data platforms, an end-to-end multiway join over Flink, which is called Join-MOTH system, is proposed to exploit sharing data granularity, sharing join granularity, and (...) sharing implicit sorts within multiple join queries. For sharing data, our previous work, Multiquery Optimization using Tuple Size and Histogram system, has been introduced to consider the granularity of sharing data opportunities among multiple queries. For sharing sort, our previous work, Sort-Based Optimizer for Big Data Multiquery, has been introduced to consider the implicit sorts among join queries. For sharing join, additional modules have been tailored to the J-MOTH optimizer to optimize sharing work by exploiting shared pipelined multiway join among multiple multiway join queries. The experimental evaluation has demonstrated that the J-MOTH system outperforms the naive and the state-of-the-art techniques by 44% for query execution time using TPC-H queries. Also, the proposed J-MOTH system introduces maximal intermediate data size reduction by 30% in average over Hadoop-like infrastructures. (shrink)

This study was designed to estimate the associations between self-efficacy and professional identity. A total of 1,051 freshmen nursing students from the Be Resilient to Nursing Career program were recruited from four universities between September and November 2020. A latent profile and moderated meditation analysis were performed. Four profiles of self-efficacy were identified and named as Lowest, Med-low, Med-high, and Highest. The mediating role of resilience and the moderating effect of role models were also identified. Therefore, self-efficacy, resilience, and role (...) models may be three important factors to professional identity in FNSs and these relationships should be further validated in longitudinal or interventional studies. (shrink)

The development and application of artificial intelligence (AI) technology has raised many concerns about privacy violations in the public. Thus, privacy-preserving computation technologies (PPCTs) have been developed, and it is expected that these new privacy protection technologies can solve the current privacy problems. By not directly using raw data provided by users, PPCTs claim to protect privacy in a better way than their predecessors. They still have technical limitations, and considerable research has treated PPCTs as a privacy-protecting tool and focused (...) on possible technical improvements. In this article, we argue that PPCTs cannot effectively protect privacy in the narrow sense due to their technical limitations. Moreover, although these shortcomings could be remedied, they still fall into a paradox because their aim is to protect privacy, but they could reveal private information from users. This paradox of privacy protection not only aggravates the social impact arising from AI privacy issues but may also make the current privacy protection lose its meaning, resulting in a situation in which privacy protection is useless. (shrink)

Consumer indirect misbehavior in access-based consumption is a significant challenge for enterprises. The literature is in short of a deep understanding of the antecedent conditions of consumer indirect misbehavior in this context and limited by inconsistent findings, calling for developing a holistic and integrative theoretical framework. This study integrates three commonly used theoretical perspectives in the consumer misbehavior literature to present holistic archetypes of consumer indirect misbehavior formation. In accordance with this theoretical objective, we adopted an emerging approach for configurational (...) analysis, i.e., fuzzy-set qualitative comparative analysis, to analyze the complex combinations of six influencing factors. We collected data using a scenario-based field survey of 264 experienced consumers of a popular bike-sharing service in China. The scenarios were developed based on relevant literature and a Delphi study. The fsQCA results reveal multiple configurations for high and low levels of consumer misbehavior intention. Specifically, perceived benefits and moral definition play important roles, while the effect of sanctions is highly dependent on other factors. These results lead us to derive three theoretical propositions for antecedent conditions leading to consumers’ indirect misbehavior intentions in access-based consumption. This study enriches our understanding of the causes of misbehavior and provides novel insights for management practitioners to take appropriate countermeasures. (shrink)

The conceptual changes of Jian儉 in the pre-Qin period were the results of changes in the social and political structure. It originally referred to Jian virtue, which was a kind of political norm of clan states. This required the aristocrats to be moderate in accordance with the patriarchal hierarchy and generously share their wealth with their own clansmen. The opposite of Jian virtue is Tan and Chi. In the middle of the Spring and Autumn Period, many states formed their politics (...) based on ministerial families. The aristocrats glorified greed and extravagance as Fu, and stigmatized Jian virtue as Pin. After the collapse of the clan-based state order, the states in the Warring States Period gradually developed into territorial states, and the institutional political norm became a new, abstract concept, indicated by the compound Jian Yue and was used to describe the consumption attitudes of individuals and families. Meanwhile, with the increase of social mobility, the pursuit of riches was highly popular in the ideological world. The new expression of “means-ends” advocated by Legalists, which stipulated that individuals and families acquire wealth through Jian Yue, took shape and endures to this day. (shrink)

Ratio, Volume 34, Issue 4, Page 303-311, December 2021.

In this paper I scrutinize the “rational beliefs” in the concept of rationalizability in strategic games [Bernheim, Pearce ]. I illustrate through an example that a rationalizable strategy may not be supported by a “rational belief”, at least under one plausible interpretation of “rational belief”. I offer an alternative formulation of “rational belief” in the concept of rationalizability, which yields a novel epistemic interpretation of the notion of point-rationalizability.

A function is boundedly finite-to-one if there is a natural number $k$ such that each point has at most $k$ inverse images. In this paper, we prove in $\textsf{ZF}$ (i.e. the Zermelo–Fraenkel set theory without the axiom of choice) several results concerning this notion, among which are the following: (1)For each infinite set $A$ and natural number $n$, there is no boundedly finite-to-one function from $\mathcal{S}(A)$ to $\mathcal{S}_{\leq n}(A)$, where $\mathcal{S}(A)$ is the set of all permutations of $A$ and $\mathcal{S}_{\leq (...) n}(A)$ is the set of all permutations of $A$ moving at most $n$ points. (2) For each infinite set $A$, there is no boundedly finite-to-one function from $\mathcal{B}(A)$ to $\textrm{fin}(A)$, where $\mathcal{B}(A)$ is the set of all partitions of $A$ such that every block is finite and $\textrm{fin}(A)$ is the set of all finite subsets of $A$. (shrink)

本书是以意识和意识形态为研究内容的专著,它既是意识发生学的说明,又是意识和意识形态结构学的认识论分析。.

Using logic analysis method with contemporary philosophy conception, made the definition of a life. Analyzing the reason of a disease and characteristics of drug, explained the Chinese traditional theory of materia medica. Demonstrated the best drug contain the function of Monarch drug, Minister drug, serviceman drug and missioner drug, instructed human drug reseach in future.

This paper is concerned with the optimal output feedback control problem for networked control systems with Markovian packet losses. In this paper, the packet losses occur both between the sensor and controller and between the controller and actuator. Moreover, the packet loss channels are described with two-state Markov chains. Since the precise state information cannot be obtained, thus an optimal recursive estimator is designed. Furthermore, by adopting the dynamic programming approach, we derive the optimal output feedback control, which is based (...) on the solution to a given modified Riccati equation. The obtained results can be seen as an important implementation of the control theory for NCSs with unreliable communication channels. (shrink)

Chinese national culture has a glorious past, as does our science, technology, and production. It was in the modern era that, for a variety of reasons, the Chinese national culture fell behind the West in many respects, not keeping up with the demands of the times.

Mr. Tang Junyi is the son of the great scholar of Sichuan, Mr. Tang Difeng. As a child, he received much of the nurturing influence of the scholarship in his family; he was a wise young man from a very tender age, with many unusual thoughts. Since the publication of his essay "The theory of Nature in Xun Zi's Thought" when he was fifteen years old and still in middle school, Mr. Tang has pursued the road of a scholar and (...) a thinker with the utmost dedication, as indefatigably today, after several decades, as if it were only the beginning. In the end, with his accomplishments of moral conduct and wisdom, his widespread and profound influence as a teacher, and his magnificent accomplishments in scholarship, he has established an unmatched reputation among academic circles both at home and abroad, and has become an epoch-making philosopher of contemporary China who has stood far above his generation, remained unbent and unsubdued by the test of time, and has established his own school of thought for the ages. (shrink)

本书重点研析了社会主义宪政的若干基本理论问题。包括宪法与权力,宪法与人民主权原则,宪政的理论逻辑,宪政与法治,宪政与民主,宪政与政党,宪政与人权,宪政与社会主义法治理念等。全书坚持以马克思列宁主义为指 导,以求真务实的态度,综合运用法哲学、历史学、政治学等多种学科研究方法,对宪政问题的基本原理以及我国的宪政建设问题进行了深入剖析。作者通过研读辨析大量资料文献后,经过十余年时间的艰苦研究探索,比较全面 、深入、系统地辨析了若干对社会主义宪政的基础关系,兼有立论与驳论。本书比较深入地探析了人民主权原则在宪政理论中的地位,尤其是它与民主、自由、司法审查等的学理关系。从历史、社会、文化等角度探析民主、法治 、人权如何通过社会主义宪政建设得以价值与功能实现。如何通过发展社会主义民主、法治以及依法执政是探讨社会主义宪政建设可能性的必由之路。社会主义宪政是人类文明的积淀,是规范的政治,是现代文明的首要选择与根 本标志。作者还针对党中央提出的"树立社会主义法治理念"问题,结合其与社会主义宪政的关系进行了论述。.

Ideal interpretation is understanding a text in the best possible way. It is usually used when the text has a canonical status, such as the Bible or the U.S. Constitution. We argue that Zhu Xi’s view about interpreting the Four Books and Ronald Dworkin’s view about constitutional interpretation are examples of ideal interpretation and that their basic principles are similar. Each holds, roughly, that their target text contains moral truth; that the author’s mind requires the mediation of learning; that the (...) purpose of interpretation is not only to lead the reader to the moral truth but to become a better person; that all propositions are about the same moral truth or about political justice; that the interpretation ultimately must come from oneself, purged of prejudices; and that the only correct interpretation is one that captures the original meaning. (shrink)

Ralph Weber’s recent criticism sheds light on the methodological predicament of comparative philosophy. I examine Weber’s analytical tool and argue that its general applicability and potential unbridled use can lead to a conflict between its own legitimacy and the legitimacy of comparative philosophy as an established sui generis sub-discipline of philosophy which largely functions as “intercultural” or “trans-cultural philosophy”. I defend the cultural approach, and argue that comparative philosophy should be viewed as philosophical data analysis from different spatiotemporal origins, in (...) order to achieve better explanatory power for philosophical study. I point out that philosophy in China has its own peculiar methodological predicament. The comparative study of philosophy is a joint project of inter-cultural dialogue that rests on the collective effort of global participants. (shrink)

Based on the quarterly data of mutual funds in China from the fourth quarter of 2004 to the fourth quarter of 2019, this paper constructs a series of complex bipartite networks based on the overlapped portfolios of mutual funds and then explores the influences of fund network position on mutual fund’s investment behavior and performance. This paper finds that a mutual fund with shorter information transmission path to other entities in the fund network or with stronger ties with those entities (...) in important information positions will achieve better investment performance. However, a stronger mediating role over the potential information flow of the fund network cannot help a mutual fund increase performance. The empirical results also indicate that a mutual fund holding stock portfolios with high valuation difficulties caused by the market or fundamental information uncertainty will achieve better investment performance, while holding hard-to-value portfolios caused by limited public information will reduce the performance of the fund. Furthermore, high closeness centrality or eigenvector centrality can help mutual funds deal with the disclose problems of public information, thus reducing the likelihood of a mutual fund holding hard-to-value portfolios caused by limited public information to achieve worse performance. Eigenvector centrality brings information advantages about company fundamentals, so it is easier for a mutual fund with high eigenvector centrality to profit from holding hard-to-value portfolios caused by the fundamental information uncertainty. The conclusions of this paper can enhance our understanding of the fund network and its information mechanism and shed new light on mutual fund’s information advantages and related asset allocation strategies. (shrink)

In this paper, the issue of optimally modifying the structure of a directed network to guarantee its structural controllability is investigated. Given a directed network, in order to obtain a structurally controllable system, a framework for finding the minimum number of directed edges that need to be added to the network is proposed. After we get these edge-addition configurations, we further calculate the network cost of each optimization scheme and choose the one with the minimum cost. Our main contribution is (...) twofold: first, we provide an algorithm able to find all optimal network modifications in polynomial time; second, we provide a way to calculate the cost of optimizing the network based on the node betweenness. Numerical simulations are given to illustrate the theoretical results. (shrink)

With the rapid development of information age, various social groups and corresponding institutions are producing a large amount of information data every day. For such huge data storage and identification, in order to manage such data more efficiently and reasonably, traditional semantic similarity algorithm emerges. However, the accuracy of the traditional semantic similarity algorithm is relatively low, and the convergence of corresponding algorithm is poor. Based on this problem, this paper starts with the conceptual structure of language, analyzes the depth (...) of language structure and the distance between nodes, and analyzes the two levels as the starting point. For the information of a specific data resource description frame type, the weight of interconnected edges is used for impact analysis so as to realize the semantic similarity impact analysis of all information data. Based on the above improvements, this paper also systematically establishes the data information modeling process based on language conceptual structure and establishes the corresponding model. In the experimental part, the improved algorithm is simulated and analyzed. The simulation results show that compared with the traditional algorithm, the algorithm has obvious accuracy improvement. (shrink)