Sentence sentiment classification is an important task of sentiment analysis.It aims to classify the sentences into positive,negative,or objective.One can consider sentence sentiment classification as a standard text ...Sentence sentiment classification is an important task of sentiment analysis.It aims to classify the sentences into positive,negative,or objective.One can consider sentence sentiment classification as a standard text categorization problem.However,determining the sentiment orientation of a review sentence requires more than the features inside the sentence itself,especially for the sentences with little or ambiguous inside sentence features.Through observing,some features outside the sentence can interact with its inside features to enhance the overall performance of sentence sentiment classification.Thus in this paper,we propose two such outside sentence features:intra-document evidence and inter-document evidence.Then in order to improve the sentence sentiment classification performance,a graph-based propagation approach is presented to incorporate these inside and outside sentence features.The experimental results on camera domain show that the proposed approach performs better than the approaches without using outside sentence features,and outperforms other representational previous approaches.展开更多
保障教学科研信息的丰富与畅通是高校图书馆的根本使命。在概述美国版权结算中心的即时获取(Get It Now)服务的基础上,聚焦其在美国高校图书馆的应用,通过对实践主体、实践过程、实践效果三方面的详细调研,进一步明确其对于图书馆文献...保障教学科研信息的丰富与畅通是高校图书馆的根本使命。在概述美国版权结算中心的即时获取(Get It Now)服务的基础上,聚焦其在美国高校图书馆的应用,通过对实践主体、实践过程、实践效果三方面的详细调研,进一步明确其对于图书馆文献服务和馆藏开发的实际意义,并由此提炼出Get It Now作为一种资源、一项服务和一种工具的创新价值。展开更多
基金Supported by National High Technology Research and Development Program of China(863 Program)(2008AA01Z144)National Natural Science Foundation of China(6080309360975055)
文摘Sentence sentiment classification is an important task of sentiment analysis.It aims to classify the sentences into positive,negative,or objective.One can consider sentence sentiment classification as a standard text categorization problem.However,determining the sentiment orientation of a review sentence requires more than the features inside the sentence itself,especially for the sentences with little or ambiguous inside sentence features.Through observing,some features outside the sentence can interact with its inside features to enhance the overall performance of sentence sentiment classification.Thus in this paper,we propose two such outside sentence features:intra-document evidence and inter-document evidence.Then in order to improve the sentence sentiment classification performance,a graph-based propagation approach is presented to incorporate these inside and outside sentence features.The experimental results on camera domain show that the proposed approach performs better than the approaches without using outside sentence features,and outperforms other representational previous approaches.
文摘保障教学科研信息的丰富与畅通是高校图书馆的根本使命。在概述美国版权结算中心的即时获取(Get It Now)服务的基础上,聚焦其在美国高校图书馆的应用,通过对实践主体、实践过程、实践效果三方面的详细调研,进一步明确其对于图书馆文献服务和馆藏开发的实际意义,并由此提炼出Get It Now作为一种资源、一项服务和一种工具的创新价值。
