Automating the Construction of Internet Portals with Machine Learning

Domain-specific internet portals are growing in popularity because they gather content from the Web and organize it for easy access, retrieval and search. For example, www.campsearch.com allows complex queries by age, location, cost and specialty over summer camps. This functionality is not possible with general, Web-wide search engines. Unfortunately these portals are difficult and time-consuming to maintain. This paper advocates the use of machine learning techniques to greatly automate the creation and maintenance of domain-specific Internet portals. We describe new research in reinforcement learning, information extraction and text classification that enables efficient spidering, the identification of informative text segments, and the population of topic hierarchies. Using these techniques, we have built a demonstration system: a portal for computer science research papers. It already contains over 50,000 papers and is publicly available at www.cora.justresearch.com. These techniques are widely applicable to portal creation in other domains.     

论图书馆为学习型社会服务

在学习型社会背景下,图书馆是一个服务于学习型社会的组织。社会化学习氛围和图书馆的自身优势,为图书馆开展学习服务创造了契机和条件。为学习型社会服务,图书馆应采取的相应策略。     

中小城市地方大学图书馆社区阅读推广模式研究

文章描述了我国城市化快速发展过程中,中小城市文化发展与经济社会发展之间的不同步现象。分析了国家“全民终身学习”环境下,位于中小城市的地方大学图书馆顺应所在区域经济社会发展,深入居民社区开展阅读推广的必要性与可行性;分析了相较于地方公共文化机构,地方大学图书馆所具备的资源、媒体、智力等优势以及借助优势开展居民社区阅读推广活动的原则、过程和内容,总结了活动所带来的社会效益及面临的主要问题。