基于行为关系网络的恶意代码检测方法

在网络安全领域,恶意代码的威胁是一个不可回避的话题.如何快速检测出恶意代码、阻止和降低恶意代码产生的危害一直是亟需解决的问题.本文提出一种基于行为关系网络的恶意代码检测方法.首先,在沙箱中运行样本获得行为报告,再从报告中提取样本的API调用、注册表访问和文件读写操作三种行为记录来构建行为关系网络,所构建的行为关系网络包含“PE”、“API”、“Registry”和“File”4种类型的节点;然后,使用一种基于元图的方法来计算样本之间的相似度矩阵;最后,使用一种自定义核的支持向量机(Support Vector Machine, SVM)模型来进行训练和预测.实验结果表明,本文提出的方法可以达到95.5%的分类准确率,能够有效地对恶意代码进行检测.     

Project knowledge and its resituation in the design of research projects: Seymour Benzer's behavioral genetics, 1965-1974

The article introduces a framework for analyzing the knowledge that researchers draw upon when designing a research project by distinguishing four types of “project knowledge”: goal knowledge, which concerns possible outcomes, and three forms of implementation knowledge that concern the realization of the project: 1) methodological knowledge that specifies possible experimental and non-experimental strategies to achieve the chosen goal; 2) representational knowledge that suggests ways to represent data, hypotheses, or outcomes; and 3) organizational knowledge that helps to build or navigate the material and social structures that enable a project. In the design of research projects such knowledge will be transferred from other successful projects and these processes will be analyzed in terms of modes of resituating knowledge. The account is developed by analyzing a case from the history of biology. In a reciprocal manner, it enables a better understanding of the historical episode in question: around 1970, several researchers who had made successful careers in the emerging field of molecular biology, working with bacterial model systems, attempted to create a molecular biology of the physiological processes in multicellular organisms. One of them was Seymour Benzer, who designed a research project addressing the physiological processes underlying behavior in Drosophila.     

低碳产业上市公司并购行为对公司劳动力需求的效应——基于动态面板数据的实证分析

以2003~2009年沪深两市发生并购的低碳产业上市公司的面板数据集为研究对象,通过构造动态面板数据模型,探究低碳产业上市公司并购对公司劳动力需求的影响。研究结果表明低碳产业上市公司并购有利于增加公司劳动力需求。本文研究不但从理论上丰富了并购的研究内容、拓展了研究范围,从实证上明确了并购对公司劳动力需求的影响关系,并且为相关政府部门合理制定就业政策提供了可行建议。     

基于计划行为理论的家族企业资本结构形成路径研究:实证分析及稳健性检验

以计划行为理论为研究框架对家族企业的资本结构形成过程进行理论分析和实证检验,研究发现家族企业的资本结构形成路径是以家族企业家的融资意向为起点,然后上升为企业融资决策,进一步转化为融资行为,最后形成特定资本结构的过程。实证检验的结果不仅支持理论推导的路径模型,同时表明,即便企业发生重大变动,计划行为理论模型在解释家族企业资本结构形成上仍然适用,家族企业资本结构形成路径具有稳定性。     

Repeated sampling adds to the genetic diversity of Lepidochelys olivacea (Eschscholtz 1829) olive ridley sea turtle

ABSTRACT

First sampled in the late 1990s, Campamento Tortuguero La Gloria, in Jalisco, Mexico, was resampled for olive ridley sea turtle (Lepidochyles olivacea Eschscholtz) diversity 10 years later. A comparison with all previously reported mitochondrial sequences revealed that these new samples added to the known genetic diversity for this species, and revealed unexpectedly high genetic diversity among turtles nesting on this beach. The results highlight the importance of systematic resampling in known nesting rookeries to verify the genetic diversity of study populations. Three new olive ridley haplotypes are reported, all more closely related to Baja Californian haplotypes than to Australian haplotypes. Significant genetic divergence is reported within populations, within ocean basins (Atlantic, Pacific, Indian and Indo-Pacific), and between ocean basins. Furthermore, this is the first study that integrates satellite tagging data to demonstrate diverse post-nesting migration patterns of turtles with identical haplotypes, and it demonstrates flexibility in post-nesting migratory behaviour for olive ridley sea turtles of the same genetic provenance.     

一类二阶非线性泛函微分方程的振动性

研究了一类二阶非线性泛函微分方程的振动性,建立了4个新的振动定理,并给出了其应用.推广了有关文献中的部分结果.     

凉山中职学校彝族学生行为表现分析及施教策略探究

本文从学习状态、情绪表达、个性心理和就业规划等四个方面分析了凉山中职学校彝族学生的行为表现,剖析了这些行为表现的心理成因,并根据长期的实践提出相应的教育策略有情施教,爱心育人,培养他们扎实的专业基础,提升各方面的素质,力争把他们培养成为民族地区所需的技能型人才。     

“行为养成训练法”在宜阳县红旗煤矿企业安全管理的实践应用

2010年以来煤矿事故频发生,其中由于工人三违、操作不规范导致的事故不在少数。通过分析事故原因,其中有效治理三违,规范员工操作水平,是防范事故发生的有效手段。我矿为此2010年伊始开始推行行为养成训练法,来规范员工操作、遏制三违、降低事故率,并取得了相当的成效。     

Learning,Mutation and the Economics of Convention:A Selected Review of Evolutionary Game Theory

Before the present of basic model,one example is given in section 2 to illustrate the economic intuition behind the SSE. The general model,including the three hypotheses,adaptive play setting and basic results is laid out in section 3. Sections 4 study the asymptotic behavior of this model. This review concludes with a comment.     

基于控制论的计算机生成兵力实体对象行为模型

实体行为建模是计算机生成兵力(CGF)研究的重要内容。基于控制论的基本思想，提出适应虚拟战场需求的虚拟实体对象行为模型ESCP。ESCP行为模型由感受器、效应器和控制器三部分组成，感受器感知虚拟战场环境信息和内部反馈事件，效应器反映CGF实体对象对虚拟战场环境的作用，控制器对感知的虚拟战场环境信息进行处理，并对实体的行为进行控制。ESCP支持复合行为、协同行为以及行为并发，行为可重用。