采用航迹特征的智能机型识别

针对空战目标识别中机型自动识别比较困难的问题，提出了采用航迹特征的智能目标识别方法。利用卷积神经网络（Convolutional Neural Network，CNN）分层学习特征的能力，训练CNN算法模型自动地从航迹数据中学习有用的特征并分类。利用沿海实地采集的15个类别的飞机航迹数据，经一系列数据预处理后作为智能识别算法的训练和测试数据，在验证实验中描述了算法网络的相关配置,对比了CNN与其他分类器的识别结果。实验结果表明，CNN具有很好的识别性能。     

集体林区资源异质性农户林业生产行为动态特征及差异研究——以湖南省为例

分别以商品林农户、公益林农户和兼有林农户作为研究对象,采用描述性分析从林业生产过程和投入产出两个维度客观揭示3类农户林业生产行为动态特征及差异。打破将林区农户作为同质整体的传统假设进行研究的结果表明:商品林、公益林和兼有林农户林业生产行为整体趋势比较积极,但在造林、管护、采伐行为及林业投入产出等方面存在明显差异。因此,建议通过政策引导、市场调剂等方式形成商品林、公益林差异化经营优势,确保农户利益的同时,更好的贯彻森林分类经营管理理念,维护国家生态安全。     

财权和事权相匹配关系研究

在政府间财政关系中,财权和事权的匹配是主要的财政关系之一,明确财权和事权的划分,保证财权和事权相匹配是我国财税改革的关键。然而,当前政府间财权和事权划分不明确,导致了财权上移、事权下放等问题,没有达到真正意义上的匹配。文中在此回顾各方意见,总结政府间财权与事权的理论依据和存在的问题,并对现阶段的改革对政府间财权事权关系的影响做了简要评述。     

基于供应链的物流企业战略匹配能力研究

文中通过回顾之前对物流能力所作的研究及相关理论背景的基础上，认为物流企业战略匹配能力是企业物流能力的一个重要方面，并做了简单的探讨分析，丰富了对物流企业能力的研究。     

Is there really a foreign ownership wage premium? Evidence from matched employer-employee data

Numerous studies on firm-level data have reported higher average wages in foreign-owned firms than in domestically owned firms. This, however, does not necessarily imply that the individual worker's wage increase with foreign ownership. Using detailed matched employer-employee data on the entire Swedish private sector, we examine the effect of foreign ownership on individual wages, controlling for individual and firm heterogeneity as well as for possible selection bias in foreign acquisitions. We distinguish between foreign greenfields and takeovers and compare foreign-owned firms with both domestic multinationals and local firms. Our results show a considerably smaller wage premium in foreign-owned firms than what has been found in studies conducted at a more aggregate level. Moreover, foreign takeovers of Swedish firms tend to have no or even a negative effect on wages.     

少数民族社区旅游的舞台化特征研究——以云南若干村镇为例

云南民族众多、人文和自然景观富饶,少数民族社区旅游发展起步较早,发展较成熟,在长期发展过程中,呈现出了明显的舞台化特征.在考察了大理古城、周城,丽江束河古镇,香格里拉霞给村,西双版纳傣族园等较为典型的旅游村镇的基础上,归纳认为少数民族社区旅游的舞台化特征主要体现在3个方面:社区旅游圈、东道主行为前台化和民俗节事舞台化.这种舞台化有利于少数民族传统村镇在空间特质和精神特质上的分区保护;有利于提高居民参与社区旅游发展的参与意识和传统文化意识;有利于游客在有限的时空范围内体验少数民族的风土人情.     

An empirical investigation of director selection in movie preproduction: A two-sided matching approach

This paper examines how movie producers recruit directors in the preproduction phase as mutual choices in a two-sided matching model. It conceptualizes that movie attributes and filmmaker characteristics determine the matching outcomes (“who directed which movie”) and in turn indirectly affect movie box office. We exploit a dataset of 4,807 feature films from 1990 to 2010 to examine empirically the complementarities between the movie/producer side and the director side in terms of movie budget, filmmaker track records and social relations. A series of simulations suggest that social relations facilitate positive assortative matching. Further simulation analyses are conducted to quantify the financial implications of movie–director mismatches, as well as the indirect effects of production budget and producer characteristics. The simulation results show that: a) the financial implications of having a mismatched director can be substantial; and b) the indirect effect of production budget and producer characteristics affect movie box office in an interactive manner. These findings can help filmmakers to better understand the financial impacts of movie–director choices and make more informed decisions at the early phase of preproduction.     

Visual complexity of eco-labels and product evaluations in online setting: Is simple always better?

Noticeable and comprehensible eco-labels are needed to promote sustainable products. So far, researchers have mostly studied consumers' evaluations of eco-labels, without analyzing eco-label's visual complexity. Through two experimental studies this paper proposes that consumers' evaluations of sustainable products increase when zoom-in feature provided in online stores, and they are labelled through eco-labels that have high design and low feature complexity due to increased perceptual fluency. The findings demonstrate that while design complexity increases consumer product evaluations due to increased perceptual fluency, feature complexity increases - instead of decreases – consumers' evaluations due to conceptual – and not perceptual – fluency. Consequently, it is advised to design and adapt eco-labels easy-to-understand, visually eye-catching and highly visible (i.e., in large size) to enhance ease of processing and increase product evaluations.     

国际场外衍生品电子交易确认平台发展趋势及启示

交易确认是交易后处理过程中的重要环节,可以通过电话、邮件、传真等人工形式进行,也可以通过电子交易确认平台完成。由于人工确认的不及时可能导致交易失败从而增大交易成本和风险,近年来电子交易确认在国际O T C衍生品市场上得到了广泛的应用。文章梳理和区分了交易确认的概念,回顾了电子确认平台的发展历程,并在此基础上对电子交易确认平台的发展趋势进行了展望。     

井冈山风景区公路网络整体可达性分析

运用可达性方法定量研究井冈山风景区公路网络空间结构,考虑地形、道路等级、拥挤度等因素对车速的影响,采用加权平均旅行时间评价指标,分析不同旅游季节景点可达性和对外可达性变化。研究表明:1井冈山风景区景点可达性和对外可达性分别呈现"中心—外围"摄动变形的圈层结构与"东—西"摄动变形的圈层结构,可达性空间分布遵循空间距离衰减性、交通指向性、高等级路网指向性等。2旅游季节因素对可达性影响显著,旅游旺季可达性水平发生明显变化,可达性空间分布也受其影响。3路网结构、景点布局和节点规模是影响可达性分布的重要因子。在此基础上,提出了可达性优化建议。