随着北斗报文服务系统、北斗国际搜救服务通过国际组织认可及北斗短报文在国内船舶的应用成效,初步形成北斗海上遇险与安全服务.本文提出北斗全球海上遇险与安全服务体系概念,通过引入广义北斗任务控制中心(BeiDou mission control cent...随着北斗报文服务系统、北斗国际搜救服务通过国际组织认可及北斗短报文在国内船舶的应用成效,初步形成北斗海上遇险与安全服务.本文提出北斗全球海上遇险与安全服务体系概念,通过引入广义北斗任务控制中心(BeiDou mission control center,BD-MCC)给出体系架构组成,并从北斗特色服务、海事通信业务到系统服务层面分析该体系在亚太与全球服务的功能特征,梳理该体系中北斗报文服务系统、北斗国际搜救系统、北斗应急示位搜救系统、北斗船舶远程识别与跟踪系统(long range identification and tracking, LRIT)、北斗船舶保安报警系统(ship security alert system,SSAS)以及北斗海上安全信息播发系统的业务流程及服务规范;展望该体系的系统化、国际化及定制化应用;研究成果有助于推动北斗通导在全球海上遇险与安全业务领域体系化应用.展开更多
The use of agent technology in a dynamic environment is rapidly growing as one of the powerful technologies and the need to provide the benefits of the Intelligent Information Agent technique to massive open online co...The use of agent technology in a dynamic environment is rapidly growing as one of the powerful technologies and the need to provide the benefits of the Intelligent Information Agent technique to massive open online courses, is very important from various aspects including the rapid growing of MOOCs environments, and the focusing more on static information than on updated information. One of the main problems in such environment is updating the information to the needs of the student who interacts at each moment. Using such technology can ensure more flexible information, lower waste time and hence higher earnings in learning. This paper presents Intelligent Topic-Based Information Agent to offer an updated knowledge including various types of resource for students. Using dominant meaning method, the agent searches the Internet, controls the metadata coming from the Internet, filters and shows them into a categorized content lists. There are two experiments conducted on the Intelligent Topic-Based Information Agent: one measures the improvement in the retrieval effectiveness and the other measures the impact of the agent on the learning. The experiment results indicate that our methodology to expand the query yields a considerable improvement in the retrieval effectiveness in all categories of Google Web Search API. On the other hand, there is a positive impact on the performance of learning session.展开更多
介绍了一个高效的元搜索引擎系统SMS(Smart Meta Searchcr),采用检索实例知识库对用户的检索意图进行推理,同时给出一套独特的星级排行评价策略,通过用户行为分析技术为用户提供个性化信息检索服务,以及其在未来搜索引擎个性化、智能化...介绍了一个高效的元搜索引擎系统SMS(Smart Meta Searchcr),采用检索实例知识库对用户的检索意图进行推理,同时给出一套独特的星级排行评价策略,通过用户行为分析技术为用户提供个性化信息检索服务,以及其在未来搜索引擎个性化、智能化、专业化和多媒体搜索的发展方向所做的探索工作。展开更多
文摘随着北斗报文服务系统、北斗国际搜救服务通过国际组织认可及北斗短报文在国内船舶的应用成效,初步形成北斗海上遇险与安全服务.本文提出北斗全球海上遇险与安全服务体系概念,通过引入广义北斗任务控制中心(BeiDou mission control center,BD-MCC)给出体系架构组成,并从北斗特色服务、海事通信业务到系统服务层面分析该体系在亚太与全球服务的功能特征,梳理该体系中北斗报文服务系统、北斗国际搜救系统、北斗应急示位搜救系统、北斗船舶远程识别与跟踪系统(long range identification and tracking, LRIT)、北斗船舶保安报警系统(ship security alert system,SSAS)以及北斗海上安全信息播发系统的业务流程及服务规范;展望该体系的系统化、国际化及定制化应用;研究成果有助于推动北斗通导在全球海上遇险与安全业务领域体系化应用.
文摘The use of agent technology in a dynamic environment is rapidly growing as one of the powerful technologies and the need to provide the benefits of the Intelligent Information Agent technique to massive open online courses, is very important from various aspects including the rapid growing of MOOCs environments, and the focusing more on static information than on updated information. One of the main problems in such environment is updating the information to the needs of the student who interacts at each moment. Using such technology can ensure more flexible information, lower waste time and hence higher earnings in learning. This paper presents Intelligent Topic-Based Information Agent to offer an updated knowledge including various types of resource for students. Using dominant meaning method, the agent searches the Internet, controls the metadata coming from the Internet, filters and shows them into a categorized content lists. There are two experiments conducted on the Intelligent Topic-Based Information Agent: one measures the improvement in the retrieval effectiveness and the other measures the impact of the agent on the learning. The experiment results indicate that our methodology to expand the query yields a considerable improvement in the retrieval effectiveness in all categories of Google Web Search API. On the other hand, there is a positive impact on the performance of learning session.
