众包是一种应用群体智慧的分布式问题求解机制,目前广泛存在于以人工智力活动为基础的互联网应用场景中,利用互联网上大量用户的群体协作来解决单人无法解决的复杂问题。众包协作机制对开源领域的发展起到了很大的作用。以开源软件的开...众包是一种应用群体智慧的分布式问题求解机制,目前广泛存在于以人工智力活动为基础的互联网应用场景中,利用互联网上大量用户的群体协作来解决单人无法解决的复杂问题。众包协作机制对开源领域的发展起到了很大的作用。以开源软件的开发维护过程为例,参与人员通过特定平台共同完成代码编写、bug修复等关键任务。与传统业务过程管理(Business Process Management,BPM)不同,众包场景下的协作流程存在流程结构无法预先确定、协作参与者数量无法预知、协作时间与结果无法提前预测等挑战,这给众包协作的效率与质量控制带来了极大的困难。针对众包协作过程中多个参与者按时间次序产生的一系列协作行为(体现为自然语言形式的文本),利用自然语言处理和人工智能等方法,提出了众包协作过程恢复算法,并以开源软件开发领域bug修复过程中的人员合作为案例进行了实证研究,尝试用3种方法对协作流程进行恢复,分别是文本近似度、关键词汇匹配以及神经网络意图理解恢复算法;然后定量对比了各个流程恢复算法的准确度,得出应用关键词匹配算法进行协作流程恢复的准确度最高、效果最好的结论;最后实现将需要分析的协作流程进行协作流程恢复以及可视化的工作。该研究有助于众包流程的协调者(例如开源项目管理者)更直观地理解众包协作中的问题求解过程,从中发现协作的典型模式,从而可为新的众包任务的协作过程的性质作出准确预测。展开更多
Based on the methods of acquaintance cache and group-based intelligent forwarding of service recommendations,a novel group-based active service(GAS) protocol for migrating workflows was proposed.This protocol did not ...Based on the methods of acquaintance cache and group-based intelligent forwarding of service recommendations,a novel group-based active service(GAS) protocol for migrating workflows was proposed.This protocol did not require service requesters to discover services or resources.The semantic acquaintance knowledge representation was exploited to describe service groups and this semantic information was used to recommend service to respective clients.The experimental results show that the new protocol proposed offers better performance than other protocols in terms of first-response-time,success-scope and ratio of success-packet-number to total-packet-number.When the number of service request packet is 20,the first-response-time of GAS protocol is only 5.1 s,which is significantly lower than that of other protocols.The success-scope of GAS protocol is 49.1%,showing that GAS protocol can effectively improve the reliability of mobile transactions.And the ratio of success-packet-number to total-packet-number of GAS protocol is up to 0.080,which is obviously higher than that of other protocols.展开更多
文摘众包是一种应用群体智慧的分布式问题求解机制,目前广泛存在于以人工智力活动为基础的互联网应用场景中,利用互联网上大量用户的群体协作来解决单人无法解决的复杂问题。众包协作机制对开源领域的发展起到了很大的作用。以开源软件的开发维护过程为例,参与人员通过特定平台共同完成代码编写、bug修复等关键任务。与传统业务过程管理(Business Process Management,BPM)不同,众包场景下的协作流程存在流程结构无法预先确定、协作参与者数量无法预知、协作时间与结果无法提前预测等挑战,这给众包协作的效率与质量控制带来了极大的困难。针对众包协作过程中多个参与者按时间次序产生的一系列协作行为(体现为自然语言形式的文本),利用自然语言处理和人工智能等方法,提出了众包协作过程恢复算法,并以开源软件开发领域bug修复过程中的人员合作为案例进行了实证研究,尝试用3种方法对协作流程进行恢复,分别是文本近似度、关键词汇匹配以及神经网络意图理解恢复算法;然后定量对比了各个流程恢复算法的准确度,得出应用关键词匹配算法进行协作流程恢复的准确度最高、效果最好的结论;最后实现将需要分析的协作流程进行协作流程恢复以及可视化的工作。该研究有助于众包流程的协调者(例如开源项目管理者)更直观地理解众包协作中的问题求解过程,从中发现协作的典型模式,从而可为新的众包任务的协作过程的性质作出准确预测。
基金Project(60573169) supported by the National Natural Science Foundation of China
文摘Based on the methods of acquaintance cache and group-based intelligent forwarding of service recommendations,a novel group-based active service(GAS) protocol for migrating workflows was proposed.This protocol did not require service requesters to discover services or resources.The semantic acquaintance knowledge representation was exploited to describe service groups and this semantic information was used to recommend service to respective clients.The experimental results show that the new protocol proposed offers better performance than other protocols in terms of first-response-time,success-scope and ratio of success-packet-number to total-packet-number.When the number of service request packet is 20,the first-response-time of GAS protocol is only 5.1 s,which is significantly lower than that of other protocols.The success-scope of GAS protocol is 49.1%,showing that GAS protocol can effectively improve the reliability of mobile transactions.And the ratio of success-packet-number to total-packet-number of GAS protocol is up to 0.080,which is obviously higher than that of other protocols.
