基于Agent的智能决策支持系统开发与应用

针对传统决策支持系统的局限性,该文提出了一个基于Agent的智能决策支持系统开发方案。利用界面Agent、信息Agent、移动Agent、协作Agent来实现系统的智能部件,多Agent通过协作Agent信息路由器进行协作和交互,共同完成决策支持任务。并将该模型应用于草业信息管理决策支持系统中,系统运行结果证明了模型的有效性和科学性。     

基于Agent的决策支持系统研究

将人工智能中的最新技术Agent技术用于构建决策支持系统,利用界面Agent、信息Agent、协作Agent来实现决策支持系统的智能部件,提出协作Agent来实现多Agent之间的协作和交互,为解决多Agent系统中Agent之间的协作难问题提供了一种新的思路。     

基于MAS的智能交互界面研究及应用

自适应人机交互界面的设计是应用系统能否成功实施与使用的关键,基于此提出了将多Agent系统引入用户界面设计中。分析了交互Agent模型的性质、作用和结构,讨论了几种典型界面模型的特点。实现了一种通过广义状态转移网络学习、进化、预测用户行为并能自主动作的自适应界面Agent模型,并结合应用实例说明了其工作机制。     

基于MAS的智能用户界面建模

提出一种基于多Agent系统(MAS)的智能用户界面分层模型和交互框架。采用基于互信息的“化学键”模型解决多通道融合和多媒体展现问题,使用基于环境感知的“变色龙”机制实现移动的普适访问策略,利用经济学“市场”模型和Web服务技术实现P2P协同网格计算,并给出系统动态交互模拟的化学抽象机定义。应用实例表明,该模型能提供自然高效的交互模式,减少人机隔阂。     

基于MAS的智能交互界面研究及应用

自适应人机交互界面的设计是应用系统能否成功实施与使用的关键,基于此提出了将多Agent系统引入用户界面设计中.分析了交互Agent模型的性质、作用和结构,讨论了几种典型界面模型的特点.实现了一种通过广义状态转移网络学习、进化、预测用户行为并能自主动作的自适应界面Agent模型,并结合应用实例说明了其工作机制.     

基于大数据流的Multi-Agent系统模型研究

在智能决策支持系统(IDSS)中,由于许多推理模型和方法以巨大的数据量为基础,决策响应速度成为系统的瓶颈。结合软件开发实际,提出了一种基于速度优化的Multi-Agent模型,将系统Agent分为智能交互界面Agent、数据分析处理Agent、数据访问控制Agent三类,通过各Agent的分工与协作来实现系统数据的快速交互;并在ERP采购成本分析子系统中进行建模研究,结果表明该模型能大大缩短系统决策响应时间。     

基于云平台的智能语音交互机器人设计

现有的语音交互机器人多采用用户提问、机器人回答的单向交流方式,人机交互的智能性和灵活性较差。本文研究运用树莓派(Raspberry Pi)计算机和配套的语音板作为硬件载体,融合语音唤醒、语音识别、语音合成、自然语言处理等人工智能技术,调用科大讯飞开放云平台、在线图灵机器人,搭建一种基于云平台的智能语音交互机器人系统,并结合自主开发的本地知识库和问题库,使智能语音交互机器人能够根据不同环境与任务需求实现双向互动交流,实现由机器人采集信息和交流反馈,以提供高适应性的无接触人机语音交互服务。     

基于大数据流的Multi-Agent系统模型研究

在智能决策支持系统（IDSS）中．由于许多推理模型和方法以巨大的数据量为基础，决策响应速度成为系统的瓶颈。结合软件开发实际，提出了一种基于速度优化的Multi-Agent模型，将系统Agent分为智能交互界面Agent、数据分析处理Agent、数据访问控制Agent三类，通过各Agent的分工与协作来实现系统数据的快速交互；并在ERP采购成本分析子系统中进行建模研究，结果表明该模型能大大缩短系统决策响应时间。     

新一代用户界面技术——MS Agent技术及编程介绍

一、Mjcrosoft Agent技术简介 Microsoft Agent是一组在Microsoft Windows环境下提供的软件技术,它提供一组生动活泼的角色(character)与用户进行友好的交互。开发人员可以利用角色介绍、指导用户的操作,同时给用户带来使用的乐趣。Microsoft Agent技术在原来的GUI技术的基础上提供了一种更自然的交互方式:对话界面(conversational interfaces)除了通常的键盘、鼠标输入方式之外,它还提供了语音命令输入。角色可以根据输入采用同步语音、语音文件、动画式的文本输出和相应的动作提供反馈。开发人员可以利用Microsoft Agent的编程接口在自己的软件中使用它。Microsoft Agent技术的基础是微软的组件对象模型(COM),系统通过一个ActiveX控件为支持AetiveX技术的编     

移动Agent在物流商推荐中的应用研究

采用基于协同过滤和基于内容的混合推荐技术,为新用户和老用户提供了不同的推荐策略.构建了基于移动Agent的物流商推荐模型,通过所设计的不同Agent间的交互机制及Agent知识库,为用户自动化地推荐低成本、高效率物流配送.解决了C2C电子商务平台无法向用户提供高质量物流服务的需求问题.     

LD3320的嵌入式语音识别系统的应用

语音交互系统是比较人性化的人机操作界面,它需要语音识别系统的支持。LD3320就是这样一款语音识别芯片。介绍了该芯片的工作原理及应用,给出了LD3320与微处理器的硬件接口电路及软件程序。随着高档MCU的不断出现,以MCU为核心的嵌入式语音交互系统会有非常好的应用前景。     

基于Xhtml+Voice英语语音训练系统的开发应用

Xhtml+Voice结合了Xhtml和VoiceXML各自的特点,把VoiceXML的语音交互移植到Web中,使开发带有语音交互的Web应用更灵活、更高效.提出了Xhtml+Voice在英语语音训练系统的应用实例,这种基于Xhtml+Voice的应用,增加了英语语音训练的灵活性和交互性.     

语音对抗样本的攻击与防御综述

语音是人机交互的重要载体,语音中既包含语义信息,还包含性别、年龄、情感等附属信息.深度学习的发展使得各类语音处理任务的性能得到了显著提升,智能语音处理的产品已应用于移动终端、车载设备以及智能家居等场景.语音信息被准确地识别是人与设备实现可信交互的重要基础,语音传递过程中的安全问题也受到了广泛关注.对抗样本攻击是最近几年...     

基于OpenVXI的IVR系统的设计与实现

交互式语音应答(IVR)系统是呼叫中心的重要部分,控制整个业务流程。OpenVXI是开源的VoiceXML解释器。文章设计了一个基于OpenVXI的语音应答系统,并给出了核心部分的具体实现。     

基于SIP协议的语音邮件服务的设计与实现

语音邮件是VoIP系统的一类标志性服务,在SIP系统实现中,语音邮件是一类非常重要和实用的功能,SIP协议本身并不定义这类服务的设计和实现规范,而是期望通过对业务特性的特别处理,实现相关用力持征,本文利用SIP分布式结构设计了语音同件服务的系统架构,引入了VMCP协议来解决虚构UA与语音邮件服务器之间的传输控制问题,并实现了一种SIP系统的语音邮件服务。     

On robustness of speech based biometric systems against voice conversion attack

Voice conversion (VC) approach, which morphs the voice of a source speaker to be perceived as spoken by a specified target speaker, can be intentionally used to deceive the speaker identification (SID) and speaker verification (SV) systems that use speech biometric. Voice conversion spoofing attacks to imitate a particular speaker pose potential threat to these kinds of systems. In this paper, we first present an experimental study to evaluate the robustness of such systems against voice conversion disguise. We use Gaussian mixture model (GMM) based SID systems, GMM with universal background model (GMM-UBM) based SV systems and GMM supervector with support vector machine (GMM-SVM) based SV systems for this. Voice conversion is conducted by using three different techniques: GMM based VC technique, weighted frequency warping (WFW) based conversion method and its variation, where energy correction is disabled (WFW⁻). Evaluation is done by using intra-gender and cross-gender voice conversions between fifty male and fifty female speakers taken from TIMIT database. The result is indicated by degradation in the percentage of correct identification (POC) score in SID systems and degradation in equal error rate (EER) in all SV systems. Experimental results show that the GMM-SVM SV systems are more resilient against voice conversion spoofing attacks than GMM-UBM SV systems and all SID and SV systems are most vulnerable towards GMM based conversion than WFW and WFW⁻ based conversion. From the results, it can also be said that, in general terms, all SID and SV systems are slightly more robust to voices converted through cross-gender conversion than intra-gender conversion. This work extended the study to find out the relationship between VC objective score and SV system performance in CMU ARCTIC database, which is a parallel corpus. The results of this experiment show an approach on quantifying objective score of voice conversion that can be related to the ability to spoof an SV system.     

基于VoiceXML的语音浏览器的研究与实现

语音浏览器系统能够提供更易为人们所接受的网络浏览模式,拓展了Internet的发展空间。VoiceXML语言是XML语言在语音浏览器方面的应用,文章设计并实现了一个基于VoiceXML技术的语音浏览器系统。     

校园服务智能应答机器人的研究与实现

随着智能终端和移动互联的流行与发展,移动应用深入人心。本文基于百度UNIT交互平台,创建了具有本校特点的专用知识库,并通过资源API获取如成绩、课表、消费、打卡和站群内容等动态信息,同时借助微信消息平台实现了信息的搜索与推送,最终构建了校园服务智能应答机器人。智能应答机器人为学校的师生员工提供各类校内咨询的智能应答,成为校园服务的入口和代言,开创了校园在线参考咨询的服务新模式。     

Admission control by implicit signaling in support of voice over IP over ADSL

Voice over DSL (VoDSL) is a technology that enables the transport of data and multiple voice calls over a single copper-pair. Voice over ATM (VoATM) and Voice over IP (VoIP) are the two main alternatives for carrying voice over DSL. ATM is currently the preferred technology, since it offers the advantage of ATM’s built-in Quality of Service (QoS) mechanisms. IP QoS mechanisms have been maturing only in recent years. However, if VoIP can achieve comparable performance to that of VoATM in the access networks, it would facilitate end-to-end IP telephony and could result in major cost savings. In this paper, we propose a VoIP-based VoDSL architecture that provides QoS guarantees comparable to those offered by ATM in the DSL access network. Our QoS architecture supports Premium and Regular service categories for voice traffic and the Best-Effort service category for data traffic. The Weighted Fair Queuing algorithm is used to schedule voice and data packets for transmission over the bottleneck link. Fragmentation of large data packets reduces the waiting time for voice packets in the link. We also propose a new admission control mechanism called Admission Control by Implicit Signaling. This mechanism takes advantage of application layer signaling by mapping it to the IP header. We evaluate the performance of our QoS architecture by means of a simulation study. Our results show that our VoIP architecture can provide QoS comparable to that provided by the VoATM architecture.     

A framework for QoS computation in web service and technology selection

There is a global trend of convergence of voice, video and data. Industry is facing a major shift from circuit-based voice networks to packet-based converged networks. In the last few years, data networks have been growing at much faster rate than voice networks, mainly due to the growth of Internet. As a result of this trend, more and more data are being sent over Data Networks (Voice over IP, Voice over Frame Relay, and Voice over ATM). The standards used are SOAD, WSDL, and UDDI. The emerging Service-Oriented Computing (SOC) paradigm promises to enable businesses and organizations to collaborate in an unprecedented way by means of standard web services. To support rapid and dynamic composition of services in this paradigm, web services that meet requesters' functional requirements must be able to be located from a large and constantly changing number of service providers based on their Quality of Service (QoS). In order to enable quality-driven web service selection, we need an open, secure and fair framework to evaluate the QoS of a vast number of web services. The fair computation and enforcing of web services should have minimal overhead but yet able to achieve sufficient trust by both service requesters and providers. In this paper I present our open and fair QoS computation model for web service selection.