基于微服务的业务平台架构重构

业务平台重构是承接中国电信集团公司CTNet 2025计划,落实网络重构,推进网络智能化的重要举措之一。重点分析了业务平台存在的问题,提出了以微服务化为核心理念,规范平台通用架构和开放标准,重构业务平台软件架构的演进目标。并通过建立完善基础平台、规范和推进业务/应用平台微服务化改造、资源规划和环境部署方案 3 个方面推进具体重构工作。对重构前后的平台进行资源利用率、开发效率、资源自动调度、部署效率等方面的比较分析,给出了实施业务平台重构的初步成效,为业内同类平台的规划、开发、部署提供了参考。     

Relevant and rich interactivity under uncertainty: Guest reviews,host responses,and guest purchase intention on Airbnb

Online commerce, increasingly running on digital platforms, is subject to higher uncertainty and risk in transactions (e.g., fraud, opportunism) than offline commerce. To cope with this challenge, online commerce companies often use information systems to promote interactive communication between sellers and buyers. This study examines how such seller-buyer interactivity affects buyers’ purchase intention in an online commerce context of accommodation sharing. In particular, we use text mining techniques to analyze guest reviews and host responses on Airbnb. Our analysis suggests that not only the quantity but also the quality of the response messages matter: potential guests’ purchase intention increases with the relevance and richness of the host’s responses as well as their volume. Further, we find a notable nonlinearity in the quantity effect that the volume of host responses significantly affects guest purchase intention only when it is large enough. Making sufficient responses, the hosts could enjoy complementarity between the quantity and quality effects of their responses; otherwise, the relative richness of their responses becomes more important.     

Are global over-the-top platforms the destroyers of ecosystems or the catalysts of innovation?

Global over-the-top (OTT) platforms such as YouTube and Netflix are gaining great popularity worldwide. Although the entrance of global OTT platforms may undermine the growth of countries’ local-related industries, it is also possible that imitation on the part of domestic content providers stands to create new OTT platforms or other opportunities for the growth of local content industries. This study examines the impact of global OTT platforms on the local video content industry in South Korea. Specifically, it investigates the impact of the launches of YouTube and Netflix on efficiency differences in local video content production and distribution industries through stochastic frontier analysis and meta-frontier analysis. Introduction of the global OTT platform had an impact on the domestic content industry, but there was a difference in growth according to the detailed classification industry, and the effect differed depending on the entered platform. Tobit analysis confirms that the effects of technological development and entry of global OTT platforms are significant on the technical gap ratio.     

Price dynamics in competitive agile spectrum access markets

We explore the price dynamics in a competitive market consisting of spectrum agile network service providers and users. Here, multiple self interested spectrum providers operating with different technologies and costs compete for potential customers. Different buyers or consumers may evaluate the same seller differently depending on their applications, operating technologies and locations. Two different buyer populations, the quality-sensitive and the price-sensitive are investigated, and the resulting collective price dynamics are studied using a combination of analysis and simulations. Various scenarios are considered regarding the nature and accuracy of information available to the sellers. A myopically optimal strategy is studied when full information is available, while a stochastic learning based strategy is considered when the information is limited. Cooperating groups may be formed among the sellers which will in-turn influence the group profit for those participants. Free riding phenomenon is observed under certain circumstances     

间接B2B模式的电子商务系统设计

传统B2B商务模式侧重商品提供方与商品购买方的直接交互,随着信息技术的发展,间接B2B模式的电子商务系统已逐步显现。买方、卖方基于中介平台,全面整合物流、信息流、资金流,实现完整的商务过程。本文以间接B2B模式电子商务系统的需求为牵引,从前后台分析了系统的功能组成,设计了总体业务流程,论证了销售订单转采购订单的关键技术,建立了高负载、高安全的系统体系架构。     

A Truthful Multi-Channel Double Auction Mechanism for Heterogeneous Spectrums

Auction has been widely used to spectrum allocation. Most of the previous works supposed that all the spectrum are identical. However, in reality, spectrums are quite different in different locations and frequencies. Recently, some works studied the double auction mechanism for heterogeneous spectrums. But their schemes are based on the assumption of “single-channel request”. To be more realistic, each seller and buyer will bid at least one channel. The previous schemes will not work under multi-channel assumption. In this paper, we propose a truthful multi-channel double auction mechanism for heterogeneous spectrums. Our scheme allows sellers and buyers to sell or buy multi-channels for heterogeneous spectrums. We introduce a novel virtual grouping method to split sellers and buyers. We prove that the proposed scheme satisfies the economic properties: truthfulness, individual rationality and budget balance. The simulation results confirm that our method achieves high auction efficiency and auction revenue.     

Anxious attachment,relational embeddedness,trust, co-production,and performance: An empirical study in online business-to-business relationships

Purpose

The online shopping platform serves as an intermediary between online stores and individual online shoppers. The purposes of this study are to examine the influence of anxious attachment and relational embeddedness on trust and to investigate the impact of trust and co-production on performance in the context of online seller-shopping platform relationships.

高校开放式实验室管理平台的设计与实现

建设高校开放式实验室管理平台,紧跟互联网和信息化技术的发展,推动网络信息化校园形成。通过开发高校开放式实验室管理平台,促进实验室管理高效化,带动实验室使用信息透明化。通过Microsoft Visual Studio,SQL server等工具设计开发管理效率高、易用性强的高校开放式实验室管理平台。通过该平台实现线上预约实验室、实验器材损坏报修、实验室日常管理等功能,提高实验室及实验室设备的管理和使用效率,扩大开放度。文章对高校开放式实验室管理平台进行探讨与设计。     

基于Arm-Linux的嵌入式智能家居控制系统的设计

随着嵌入式技术、网络及信息技术的发展,针对人们对智能家居的追求,提出了一种基于ARM9的嵌入式智能家居控制系统的解决方案。介绍了嵌入式Linux系统的软硬件平台,结合实例阐述了嵌入式QT图形界面系统、嵌入式数据库SQLite等关键技术在嵌入式智能家居控制系统中的应用。该方案解决了控制系统的可视化操作问题,提高了系统数据管理效率,并具有通用性可移植到其他硬件或软件平台应用。     

C2C电子商务平台下的用户投票激励算法

当前,一些C2C电子商务平台普遍存在诸如"评价方未及时做出评价,系统默认好评!"等有关卖家信誉的用户空投票现象以及诸如"本店恕不接受中评、差评"等的卖家强迫买家投票行为,从而严重地影响了C2C电子商务平台网站评价体系的运行.本文提出了将用户投票质量纳入管控算法体系以保证用户投票的质量,并设计了用户投票激励算法,以规范投票行为,提高信誉系统的参考性.模拟实验结果表明,将投票质量纳入管控算法体系对于鼓励用户主动且真实的投票,提高资源信誉的真实性与有效性以及防范用户的恶意投票均能起到积极有效的作用.     

武进广电智慧社区系统基础平台的构建

武进智慧社区基础平台的构建依托广电网络,借助互联网、云计算等先进技术,融合各类应用平台和终端,整合各类信息孤岛,既实现社区电视互动化、高清化,同时实现社区管理的信息化、智能化、网络化,其核心是构建基于互联云的跨区域、跨网络、跨平台的智慧社区服务平台,社区系统基础平台包括云平台、开放平台、应用管理平台和财务管理平台4个部分,整个系统的组网方式采用CDN网络组网方式。     

舰机协同防空作战信息网络的复杂性分析与实证

为了提高航母编队的防空作战效能,必须对防空作战系统进行设计和优化.提出一种基于复杂网络理论的航母编队防空作战系统分析方法.该方法在分析航母编队的信息协同网络结构的基础上,对作战系统中的信息进行分类,对平台中心防空作战模式和舰机协同防空作战模式的信息协同进行比较,采用复杂网络分析编队作战系统的结构,建立航母编队防空作战系...     

TMAHS: a truthful multi-unit double auction framework for heterogeneous spectrum in secondary market

Auction was widely used to tackle spectrum allocation and sharing in the secondary market under the condition of spectrum scarcity. In real communication system, such as broadband communication, the utilization of spectrum resource is various because of different requirements and complex application scenarios. So, these schemes cannot be directly applied to the above wireless communication system. To solve this problem, a new model where sellers/buyers can sell/buy multi-unit for heterogeneous spectrum was proposed and a truthful multi-unit double auction framework was designed for heterogeneous spectrum trading. A valuation function is first applied to represent the buyer’s true valuation of the sub-band and reflect the buyer’s satisfaction degree and a novel concept termed ‘virtual player’ was introduced. Then the buyer group was constructed based on the conflict graph to reuse the same spectrum among interference-free buyers in both spatial and temporal domains. The winner determination strategy and algorithm of clearing price were designed elaborately. According to the theoretical analysis, the scheme can satisfy three critical economic properties: truthfulness, individual rationality, and budget balance. Finally, simulation results show that the proposed scheme can achieve better user satisfaction, auction efficiency and spectrum reuse rate for the real communication system. The proposed auction framework is practical and effective.     

基于SDN的网络虚拟化平台及其隔离性研究

随着云计算的高速发展,虚拟化正成为近年来在企业级环境下广泛应用的技术。除服务器及存储虚拟化外,在SDN和OpenFlow技术的推动下,网络虚拟化成为热点,基于SDN的网络虚拟化平台也应运而生。在分析基于SDN的网络虚拟化设计目标的基础上,对近年来业界推出的4种典型SDN网络虚拟化平台的系统架构和原理进行了对比,并对其安全和隔离性进行了分析总结。     

Monitoring and Early Warning of New Cyber-Telecom Crime Platform Based on BERT Migration Learning

The network is a major platform for implementing new cyber-telecom crimes.Therefore,it is important to carry out monitoring and early warning research on new cyber-telecom crime platforms,which will lay the foundation for the establishment of prevention and control systems to protect citizens’property.However,the deep-learning methods applied in the monitoring and early warning of new cyber-telecom crime platforms have some apparent drawbacks.For instance,the methods suffer from data-distribution differences and tremendous manual efforts spent on data labeling.Therefore,a monitoring and early warning method for new cyber-telecom crime platforms based on the BERT migration learning model is proposed.This method first identifies the text data and their tags,and then performs migration training based on a pre-training model.Finally,the method uses the fine-tuned model to predict and classify new cyber-telecom crimes.Experimental analysis on the crime data collected by public security organizations shows that higher classification accuracy can be achieved using the proposed method,compared with the deep-learning method.     

国内AR技术平台的研究与分析

随着时代的进步,AR快速融入了人们生活,并逐渐成为行业热点。国内涌现出阿里AR、京东AR、网易AR等AR技术平台,使得AR技术应用的开发门槛大为降低。开发者只需要简单的几个步骤,便可实现AR创意。因此,通过界面设计、内容设置、AR产品制作、产品上线发布以及开发者生态等角度的分析,了解各个AR技术平台的特点与内容,以期为开发者开发优质的AR应用提供参考与依据。     

基于图卷积网络的服装评价信息分类问题的研究

随着互联网的快速发展以及电子设备的逐渐普及,越来越多的人选择在网上购物,买家在购买商品之后,可以通过平台提供的评价系统表达自己对服装产品的感受,因此会产生大量的服装评价信息.由于这些评价信息的标签是通过人工选择的,会受到外在因素的影响,所以具有不确定性.这些不确定性产生的误差会影响到平台以及其他用户对服装产品的评判.针...     

环保电子政务系统资源“一网式”整合应用

随着信息技术的不断深化,导致许多应用系统基于分布式网络由多种异构资源组成。对环保政务的各组成部门,存在着不同时期、不同服务商、利用不同技术搭建的服务平台。这给环保系统的资源管理、工作效率、运行成本等带来诸多问题。在现今阶段,行政管理部门实现＂一网式＂服务已势在必行。针对某市环保系统,以电子政务信息平台为基础,将分布于不同部门的多个业务应用系统进行资源整合,研究分析,得出针对性的技术解决方案。     

一种无线传感网节点设备的中间件平台研究

为屏蔽无线传感网节点在应用过程中底层软硬件平台的差异性,给上层应用程序提供统一的接口,提出一种针对传感网节点的中间件平台架构。该中间件平台由软硬件抽象层、网络协议栈层、中间件管理器和应用域中间件组成,采用模块化、接口抽象和分层设计的思想,各层之间以服务原语的方式进行交互。中间件平台成功移植到STM32,MSP430,CC2530三种硬件平台和μCOS-Ⅱ,FreeRTOS,OSAL三种软件平台上。实验证明该中间件平台具有良好的移植性和可扩展性。     

A policy perspective on electronic commerce

The implementation of global electronic commerce is proceeding much more rapidly than initially anticipated. By 2003-2005, electronic commerce revenue is projected to total more than $1 trillion. The US Department of Commerce's “The Emerging Digital Economy II” provides a snapshot of how electronic commerce and information technologies are being used by businesses of all sizes and from all sectors to create new goods and services. Electronic commerce is changing the fundamental relationship between buyers and sellers, producers and consumers. The role of government in providing a policy framework deserves careful examination