Event-Based Anomaly Detection for Non-Public Industrial Communication Protocols in SDN-Based Control Systems

As the main communication mediums in industrial control networks,industrial communication protocols are always vulnerable to extreme exploitations,and it is very difficult to take protective measures due to their serious privacy.Based on the SDN(Software Defined Network)technology,this paper proposes a novel event-based anomaly detection approach to identify misbehaviors using non-public industrial communication protocols,and this approach can be installed in SDN switches as a security software appliance in SDN-based control systems.Furthermore,aiming at the unknown protocol specification and message format,this approach first restructures the industrial communication sessions and merges the payloads from industrial communication packets.After that,the feature selection and event sequence extraction can be carried out by using the N-gram model and K-means algorithm.Based on the obtained event sequences,this approach finally trains an event-based HMM(Hidden Markov Model)to identify aberrant industrial communication behaviors.Experimental results clearly show that the proposed approach has obvious advantages of classification accuracy and detection efficiency.

A Small Town Non-public Owned Enterprise

SHORTLY after Spring Festival in mid-February, as China prepared for its WTO entry, arbitration took place between a non-public owned enterprise in Zhangjiagang, Jiangsu Province, and an American company,

Non-public Economy Survives Two Decades Will It Prosper in the WTO Era?

THE non-public economy has played an important role in China’s economic reforms over the past two decades, bringing about great changes to the economy and soci-

When Will Spring Come to the Non-Public Owned Economic Sector?

IN order to keep to promisesmade during negotiations to jointhe WTO, as from April 1,2002, the Chinese governmentbegan implementing the revised"Catalogue of Industries for ForeignInvestment" and its appendix.

Mixed-ownership Reform:Private Firms’Role in Targeted Poverty Alleviation-A Perspective on Resource Complementarity and Check&Balance

Targeted poverty alleviation(TPA)serves as a winning formula for fighting poverty and has generated valuable experiences for achieving common prosperity.The mixed-ownership reform has enhanced corporate economic performance.However,further testing is required to assess whether enterprises contribute to the improvement of distribution by participating in TPA.Taking A-share-listed private enterprises between 2016 and 2021 as research samples,we conducted an investigation into the extent and manner in which the mixed-ownership reform contributes to TPA.Our research reveals that a higher proportion of state capital equity participation is correlated with a greater level of private enterprises’contribution to TPA.This indicates that the mixed-ownership reform is beneficial for prompting private enterprises to shoulder responsibilities for building a society of common prosperity.As shown by the mechanism test,state capital equity participation encourages private enterprises to contribute to TPA primarily by alleviating corporate financing constraints through the resource complementarity effect.In contrast,the check&balance effect of promoting corporate poverty alleviation by mitigating the principal-agent problem has not yet been significantly demonstrated.Regarding the poverty alleviation model,state capital equity participation prompts private enterprises to contribute to TPA through industrial development,educational investment,and environmental protection,emphasizing a combination of providing external assistance and cultivating endogenous development capacity.In terms of TPA regions,state capital equity participation plays a significant role in supporting economically less-developed regions,regions with high unemployment rates,and central and western regions.This paper provides new empirical evidence for deepening mixed-ownership reforms and advancing common prosperity.

The Impact of Short Selling Disclosure Regulatory Constraint on the Lending Market and Stock Ownership

We examine the impact of the short sell disclosure(SSD)regime on the stock lending market and investor behaviors,employing a staggered difference-indifference(DiD)methodology.Our research reveals that the introduction of the disclosure regime enhances market transparency,resulting in a diminished appeal of stock ownership in the lending market for active investors.This shift is accompanied by a reduction in information leakage risks and longer loan durations.Specifically,our analysis reveals a significant decrease in the risk of loan recall by 4.87%,accompanied by an average increase of 23.72%in loan duration for short selling activities.Furthermore,the cost associated with short-sell disclosure causes a decline in both lending supply and short demand.

Property Attribute and Property Ownership of Virtual Property

Virtual property has increasingly become a key issue,particularly regarding its nature,ownership,and goodwill acquisition,all of which are worthy of study.Analyzing these issues can contribute to a better understanding of how to develop laws and regulations to protect virtual property.

Research on Mixed Ownership Reform of State-Owned Enterprises from the Perspective of Marxist Political Economy

Under China’s socialist system,state-owned enterprises are key forces driving the economic trajectory and providing strong momentum.These enterprises not only bear the crucial responsibility of advancing the process of national modernization but also serve as the core of the national economic lifeline through their irreplaceable status and function amidst changing times.In the new era,with the advent of the technological revolution and the wave of globalization,state-owned enterprises face unprecedented opportunities and challenges.As a significant aspect of state-owned enterprise reform,the mixed ownership reform is not only a transformation in the structure of enterprise ownership but also a reflection of China’s broader,comprehensive reform efforts.By deeply advancing this reform,it will help optimize the allocation of state-owned assets and significantly boost technological and management innovation within state-owned enterprises,ensuring their competitiveness in the intense market environment.Therefore,this paper will conduct an in-depth analysis of the mixed ownership reform of state-owned enterprises from the perspective of Marxist political economy.

专精特新家族企业数字化转型的实践路径——基于面板数据的动态fsQCA分析

本文运用动态fsQCA分析方法对前4批A股上市的专精特新家族企业数据进行组态分析,分析其数字化转型路径,结果发现:(1)技术、组织、环境3个层面7个前因条件均不构成专精特新家族企业数字化转型的必要条件,但家族所有权、市场化程度的必要性存在明显的时间变化趋势;(2)驱动专精特新家族企业高数字化转型的路径有4条,即“市场主导-技术辅助”、“技术主导-环境支持”、“去家族化-多要素复合驱动”、“家族控制主导”4条驱动路径,其中技术层面的前因条件尤为重要;导致专精特新家族企业非高数字化转型的路径有两条,其中技术层面前因条件全部缺失;(3)时间维度上,各路径在绝大多数年份均具有较强的解释力度;空间维度上,“市场主导-技术辅助”、“市场主导-环境支持”、“家族控制主导”的覆盖度在不同类型企业中存在差异。

碳配额所有权解释进路下的碳排放权研究

我国对碳排放权概念的使用经历了从经济学语境拓展到法学语境的过程。碳排放权的本来面目是经济学上的产权。若将其代入法学语境,碳排放权的性质应为法律权利的客体,地位相当于碳配额。目前法学上将碳排放权作为一项法律权利进行诠释可能会造成该概念理解上的混乱和实际应用上的困难。基于我国碳交易制度的实践,以碳配额作为权利客体,以权利人对碳配额的占有(持有)、使用(排放)、处分(转让、设立担保)等为权利内容的碳配额所有权对制度更有解释力和指引力。若将碳排放权视为排放碳的权利,则行使碳排放权实质上就是运用碳配额所有权的使用权能。碳配额所有权具有广义的政策性,以“行政本质、民法路径”为特点,以减排目标的实现为根本遵循,是以实行公法义务为目的的工具性权利,区别于作为目的性权利的传统民事权利。碳配额所有权的成立以配额的界定为前提,碳配额、核证自愿减排量的界定依赖碳排放量和减排量的检测和认定,基于此,行政机关应对数据质量进行严格监管。

Modeling household car ownership using ordered logistic regression model

Considering both the discrete and ordered nature of the household car ownership an ordered logistic regression model to predict household car ownership is established by using the data of Nanjing Household Travel Survey in the year 2012. The model results show that some household characteristics such as the number of driver licenses household income and home location are significant.Yet the intersection density indicating the street patterns of home location and the dummy near the subway and the bus stop density indicating the transit accessibility of home location are insignificant.The model estimation obtains a good γ2 the goodness of fit of the model and the model validation also shows a good performance in prediction.The marginal effects of all the significant explanatory variables are calculated to quantify the odds change in the household car ownership following a one-unit change in the explanatory variables.

Corporate Governance, Ownership and Financial Distress of Publicly Listed Companies in China

This paper examines the effects of internal control mechanisms on the financial distress of publicly listed companies in China. Using t-test and Logistic regression analysis, we investigated the following aspects: ownership by top managers and the CEO, the number of directors, the percentage of inside directors, CEO duality, and ownership concentration. The empirical tests indicate a lower probability of financial distress when ownership by top managers and that by the CEO are higher. The evidence also shows that a combination of two parts, the CEO and the chairman of the board, may influence the internal control system of a publicly listed companies.

论农业适度规模经营视野下的承包地细碎化治理

发展农业适度规模经营是中国式农业农村现代化的必由之路,而承包地细碎化治理是发展农业适度规模经营中的关键一环。承包地细碎化治理模式中,“承包权不动,经营权连片”在法律上的技术路径是三权分置之下的土地经营权流转;“承包权互换,承包地连片”在法律上的技术路径是两权分离之下的土地承包经营权互换。农村集体经济组织在承包地细碎化治理中发挥着统筹协调、组织服务等功能,按照法定的程序形成集体意志,还可以充当承包农户在土地经营权外部流转时的代理人,以破除集体行动困境。承包地的调整仅限于个别农户之间,并在符合法定条件的前提之下按照法定程序进行,不得以承包地细碎化治理为由扩大承包地调整的适用范围而进行“打乱重分”。

Impact of Enterprise Ownership and Size on Registered Hematotoxicity in Benzene-exposed Workers

Benzene is a classified as ahuman carcinogen that can cause myelodysplastic syndrome and acute myelogenousleukemia;.This compound is also a potent toxin suppressing the bone marrow.Accordingly,benzene causes serious hematological adverse effects,such as pancytopenia and aplastic

Support Vector Machine Prediction Modeling for Automobile Ownership

To address some inherent defects of artificial neural networks, such as insufficient generalization performance, local extremum problem, and dimensional catastrophe problem, a support vector machine was proposed and applied to the modeling of automobile ownership prediction. By analyzing the data on automobile ownership and its influencing factors, the learning sample couples for automobile ownership prediction modeling were constructed, and support vector machine (SVM) was used to regression the nonlinear function relation of automobile ownership prediction model, and the established automobile ownership prediction model was used to predict the automobile ownership in different years. To reduce the impact on the accuracy of automobile ownership prediction caused by the large order of magnitude difference between the data of automobile ownership and its influence factors, the normalization method was used to pre-process the automobile ownership and its influence factors, and the inverse normalization was used to process the automobile ownership prediction results. The comparison between the automobile ownership prediction results and the statistical results shows that the automobile ownership prediction model has good generalization performance, and the support vector machine is an effective method to model the automobile ownership prediction.

SOE Ownership Diversification and Environmental Performance

Based on the panel data of China's 34 industrial sectors during 2005-2013, this paper tests the water pollution effects of SOE ownership diversification in China. The result shows that in general, greater state ownership and less private ownership in a sector will lead to lower water pollution intensity. Test of threshold effect shows that, irrespective of its current level, an increase in state ownership helps improve the environment by different degrees. When pollution intensity is low, ownership diversification helps reduce pollution intensity; when pollution intensity is high, state ownership is the optimal choice for mitigating pollution. This paper's findings suggest that while advancing the mixedownership reform of SOEs, China cannot relax the environmental responsibilities of SOEs, and still less should economic interests override environmental concerns.

Research on Financial Performance of State-owned Enterprise Mixed Ownership Reform

Mixed ownership is an important form of realization of China＇s economic system reform and development, and it is also the main direction of state-owned enterprise reform. In order to further promote the deepening of the reform of mixed ownership, this paper randomly selects 200 listed state-owned enterprises as research objects, and studies the trends of the financial performance of these enterprises from the mixed state-owned enterprises and non-mixed-modification enterprises in the five years from 2013 to 2017, and compares their various trends. Financial indicators, a comprehensive evaluation of the problems and causes in the reform of the mixed ownership system, and then propose countermeasures to further deepen the reform of mixed ownership based on the research conclusions.

Investor Protection,Ownership Structure and Corporate Valuation

The purpose of this paper is to investigate the relationship between investor protection, ownership structure and corporate valuation. La Porta showed that there existed a simple linear relationship between corporate valuation and the holding percentage of controlling shareholders. But recent empirical evidence does not support it. A nonlinear relationship is proved between ownership structure and corporate valuaton by relaxing the assumption of La Porta＇s model in this paper. There exists a positive relation between investor protection and corporate valuation. Our empirical research shows that this relation is significantly positive indeed.