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排序方式: 共有276条查询结果,搜索用时 15 毫秒
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Internet信息检索分析与研究 总被引:7,自引:0,他引:7
综述了目前Internet 网上信息检索的主要方法及存在的问题, 并对其检索技术进行了深入的分析与比较。介绍了机器学习、智能A gent、信息过滤等新技术在信息检索中的应用, 并采用神经网络Hopfield 模型及算法进行词汇扩充来提高用户的检索提问表达, 从而提高了网上信息检索的能力。 相似文献
3.
少年儿童图书馆的延伸服务实践 总被引:1,自引:0,他引:1
以少儿图书馆的实践为基础,从读者服务、读书活动两方面入手,论述了与企业合办分馆、网络信息服务、广场读书活动、读书夏令营等图书馆延伸服务的可行性. 相似文献
4.
Matthew B. Hoy 《Medical reference services quarterly》2018,37(1):81-88
Voice assistants are software agents that can interpret human speech and respond via synthesized voices. Apple’s Siri, Amazon’s Alexa, Microsoft’s Cortana, and Google’s Assistant are the most popular voice assistants and are embedded in smartphones or dedicated home speakers. Users can ask their assistants questions, control home automation devices and media playback via voice, and manage other basic tasks such as email, to-do lists, and calendars with verbal commands. This column will explore the basic workings and common features of today’s voice assistants. It will also discuss some of the privacy and security issues inherent to voice assistants and some potential future uses for these devices. As voice assistants become more widely used, librarians will want to be familiar with their operation and perhaps consider them as a means to deliver library services and materials. 相似文献
5.
SHAUNA MC GILL 《Support for Learning》2011,26(1):4-12
This research is designed to provide information for participants, facilitators and policy makers in the area of Extended Schools. Its salient purpose is to investigate and examine the feelings, beliefs and attitudes of teachers and parents involved in the development of the Extended Schools project in Northern Ireland. The Extended Schools project was formally launched by the Northern Ireland Secretary of State on 7 March 2006, and aims to provide a wide range of services and activities in school with the intention of helping to meet the needs of children, their families and the wider community. The qualitative approach was deemed the most appropriate methodology for gathering data. 相似文献
6.
Jane L. Down 《文物保护研究》2016,61(1):26-45
This paper examines the effect of modifiers on the stability of a vinyl acetate/ethylene copolymer dispersion adhesive upon aging. Eighteen common modifiers were added to a well-characterized vinyl acetate/ethylene copolymer dispersion (Dur-O-Set® E-150) in known concentrations and dry-film samples were subjected to 16–17 years of dark aging and seven to eight years of light aging. Yellowing, pH, gloss, swelling, cohesive strength, and flexibility were monitored for changes upon aging. Generally, the neat Dur-O-Set® E-150 (no additives) was found to become acidic on aging, but was fairly resistant to yellowing. It also swelled substantially in toluene, was of high gloss, medium strength, and flexible, and remained so on aging. No modifier was found to improve these properties. Various solvents, wetting agents, and thickeners did not alter the properties by much, while plasticizers, freeze-thaw stabilizer, glycerin, and certain fillers had a more negative effect. 相似文献
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杨兰 《韩山师范学院学报》2003,24(1):27-32
票号是19世纪中国历史上一个重要的金融组织,其中,最负盛名的是山西票号,它在没有政府监管的情况下,繁荣昌盛近一个世纪,后因战乱不断才逐渐倒闭并消失。山西票号的经营制度深谙委托代理之道,也就是今天在经济学界大行其道的激励理论,并形成了一套行之有效的激励机制。尽管时代和环境都发生了变化,激励问题是永恒的。山西票号的激励制度的启示对当代中国银行业监管效率的改进是有益的。 相似文献
9.
Pedagogical Agents as Learning Companions: The Role of Agent Competency and Type of Interaction 总被引:1,自引:0,他引:1
Yanghee Kim Amy L. Baylor 《Educational technology research and development : ETR & D》2006,54(3):223-243
This study was designed to examine the effects of the competency (low vs. high) and interaction type (proactive vs. responsive)
of pedagogical agents as learning companions (PALs) on learning, self-efficacy, and attitudes. Participants were 72 undergraduates
in an introductory computer-literacy course who were randomly assigned to one of four treatments: Low-Proactive, Low-Responsive,
High-Proactive, and High-Responsive. Results indicated a main effect for PAL competency. Students who worked with the high-competency
PAL in both proactive and responsive conditions achieved higher scores in applying what they had learned and showed more positive
attitudes toward the PAL. However, students who worked with the low-competency PAL reported significantly enhanced self-efficacy
beliefs in the learning tasks. Also, there was a main effect far PAL interaction type. A proactive PAL had a significantly
positive impact on recall. These different results on learning and motivational outcomes suggest that the competency and interaction
type of a PAL should be designed according to the desired learning and motivational goals. 相似文献
10.
随着我国体育职业化的深入,体育经纪产业也迅速发展起来。文章通过文献资料和逻辑推理的方法考察了当前我国体育经纪人管理法律制度的现状,并分析了我国体育经纪人发展存在的问题。同时对国外一些国家的体育经纪人管理及法律制度进行了分析和借鉴,从而提出对我国体育经纪人管理中的相关法律制度进行完善的建议,以期对我国体育经纪人管理的规范化和法制化提供参考。 相似文献