关键词： ElasticSearch   科技资源   LogStash   分布式搜索   搜索引擎  

摘要： 针对科技行业中传统数据库检索无法满足海量、异构科技资源数据高速分布式检索的问题,提出了基于ElasticSearch的科技资源分布式搜索引擎的构建方法,并以ElasticSearch技术为核心,结合LogStash、Redis等多门技术,实现了科技资源检索系统。系统使用LogStash将数据库中的标准化数据同步到ElasticSearch,再通过SpringBoot读取后端数据,VUE框架展示前端数据,Redis缓存热搜信息和用户信息。测试结果表明,与传统数据库检索相比,该系统的检索响应时间明显缩短,检索结果全面,能够满足科技资源数据检索的需要。

关键词： 百度指数   搜索引擎   新冠肺炎  

摘要： 目的分析特定关键词的百度指数与新型冠状病毒肺炎流行的相关性,探讨大数据时代中新发传染病监测的新思路。方法以范围选词法为主,直接选词法为辅,结合国家新冠肺炎诊疗及防控方案,并运用百度指数的拓展功能确定关键词库;选取2020年1月19日至2月29日的数据,分别对每个关键词的百度指数与新冠肺炎发病数进行Spearman相关分析。结果共有25个关键词进入词库,"口罩"、"N95口罩"、"外科口罩和医用口罩的区别"等15个关键词的百度指数与新冠肺炎发病数的相关关系有统计学意义(P<0.01),其中"发热"、"乏力"、"咳嗽"等11个关键词的百度指数序列向前移动若干单位时间后,与新冠肺炎发病数的相关系数达到最大值,相关系数为0.71~0.92。结论"发热"、"乏力"、"咳嗽"等11个关键词作为先行关键词可提前对新冠肺炎的疫情做出反馈,具有一定预测预警的价值。

关键词： 搜索引擎   关键字   媒体报道   自杀事件   媒体宣传   自杀率   自杀行为   易感人群  

摘要： 自杀是个沉重的话题,又是一个不得不面对的话题。打开搜索引擎,输入关键字“自杀”,各种报道跃然纸上,有文字、有图片、有视频。50余项国际研究表明,某些形式的媒体报道会增加易感人群自杀的可能性。有研究发现:当媒体宣传和自杀相关的事件后,尤其是报道关于名人自杀或者死亡的事件后,自杀率可能提高,这种现象称为模仿自杀,即一例自杀事件发生后,在短期内出现一连串的类似自杀行为。

关键词： 搜索引擎   浏览器   神经元   三十六   关机  

摘要： “再查一遍红巨。”安文浩边想边打开浏览器,刚打算进入搜索引擎,突然想起,自己上次似乎已经把能查的搜索引擎全都查完了。现在,自己还能再查些什么呢?失望之下,他准备关机。一个想法却突然冒出:为什么不试试神经元搜索引擎呢?这可是目前最新的技术。

关键词： Suicide   Opioid crisis   Information-seeking   Google   Suicide prevention   Werther effect   Papageno effect   Health communication   Search engines  

摘要： Background and aims: Numbers of drug-overdose deaths, both intentionally and unintentionally, have been increasing in the United States. Of interest, Google spotlights counselling services as helpful resources when users query for suicide-related search terms. However, the search engine does so at varying display rates, depending on terms used. Display rates in the drug-overdose deaths domain are unknown. Methods: We emulated suicide-related potentially harmful searches at large scale across the U.S. to explore Google's response to search queries including or excluding additional drug-related terms. Employing agent-based testing we conducted 215,999 search requests with varying combinations of search terms. Results: Counseling services such as helpline telephone numbers were displayed at high rates after suicide-related potentially harmful search queries (e.g., "how to commit suicide"). While this is a desirable outcome, display rates were substantially lower when drug-related terms, indicative of users' suicidal overdosing tendencies, were added (e.g., "how to commit suicide fentanyl"). Importantly, the addition of any drug-related search term to the suicide-related queries decreased the display frequency of helpful prevention-related resources substantially. Conclusions: Search queries such as "easy way to commit suicide fentanyl" may indicate acute suicidal crises. Helpful resources should be displayed right in such search moments. Search engines should adjust their algorithms to increase these display rates to direct users to such resources. By doing this, search engines may contribute to the prevention of drug-related suicides.

关键词： 即时通信   搜索引擎   信息共享   数字平台   文化软实力   党的十九大报告   思政工作   实时发布  

摘要： 习近平总书记在党的十九大报告中强调,要增强文化软实力。科技文化一定程度上也代表着我国的文化软实力。这次疫情期间更是让每一位群众都感受到了科技文化带来的便捷。搜索引擎、即时通信、短视频新闻等互联网应用加速了人们之间的信息共享;舆情地图、疫情风险等级查询、智能辟谣等信息通过数字平台实时发布,并在用户间实现裂变传播,有效避免了由信息不对称所导致的谣言滋生。

关键词： 网络教学平台   联合教学   教学媒介   小学体育课   信息技术支持   线上教学   搜索引擎   自主学习  

摘要： 家校对接,联合教学用好网络教学平台随着网络技术的快速发展,一成不变的课堂教学模式已不能满足学生学习的需要,所以想要增加课堂的吸引力,需要大量的信息技术支持,体育教学媒介可以多元化,教师可以引导学生自己利用网络平台,对于不理解的知识点进行搜索引擎,这种利用网络的自主学习的形式更易于学生接受,更有助于提高学生学习积极性和主动性。

关键词： Internet proliferation   Domestic search engine   Global search engine   Over-the-top   OTT industry   Panel data analysis  

摘要： Search engines and over-the-top (OTT) services, which provide Internet media content, have become increasingly important as Internet usage and the number of websites have spread worldwide. This study examined 1) how Internet proliferation in a given country affects the market shares of domestic and global search engine companies, and 2) how search engine shares in domestic markets affect the global market share of domestic OTT industry. The results showed that 1) wired Internet proliferation has a positive effect on the market shares of domestic search engines, while wireless Internet proliferation has a negative effect. In contrast, wired Internet proliferation has a negative effect on the market shares of global search engines, while wireless Internet has a positive effect. In addition, 2) an increase in the market shares of domestic search engine companies has a positive effect on the global market share of domestic OTT industry. The findings of this study have practical implications for strategy development of related companies and offer empirical evidence for the interdependence of growth in the Internet and entertainment and media markets.

关键词： Grey literature   Document search   Early Middle Ages   Cremations   Natural language processing   Machine learning   Deep learning  

摘要： This paper presents a case study on Early Medieval burial practices using AGNES, an intelligent search engine for Dutch archaeological grey literature. Traditionally, it is assumed that cremations phased out at the start of the Early Middle Ages, when the inhumation practice became more numerous. However, recent research (Lippok, 2020) shows that cremations might be more prevalent than previously assumed. Due to research efforts being concentrated on furnished inhumations, cremations and other types of burials have not received their share of research interest. It is suspected that unknown Early Medieval cremations may be found in grey literature research reports. The rapidly growing document collection requires more efficient methods to search through this big data, as manual searching is too time intensive. AGNES uses machine learning to allow searching on archaeological concepts (such as time periods and artefacts) in full texts, solving common problems with synonymy and polysemy. This paper describes a controlled search for Early Medieval cremations in the Netherlands, and a comparison of the new information uncovered from the reports to prior knowledge on the topic. The queries resulted in 2541 hits. Twenty-three Early Medieval cremations that were previously unknown to experts were uncovered, and 31 (of 77) known sites were identified. Forty-one possibly interesting documents were noted, where it was not clear from the report if Early Medieval cremations were present. 2446 documents were not relevant to the study for various reasons. The 23 new sites are an increase of 30% over the existing knowledge of experts. In the last 20 years only nine new sites featuring Early Medieval cremations were discovered, so being able to add another 23 is a major development. Adding previously unknown Early Medieval cremations to the dataset challenges the existing bias for inhumation graves, and supports striving towards viewing the Early Medieval burial repertoire as more he

关键词： 搜索引擎  

ISBN: (纸本)9787121415654

摘要： 本书共17章，分为四个部分。第一部分为原理篇，介绍BFE开源项目的概貌，并对网络前端接入技术和网络负载均衡技术做简要介绍；第二部分为设计篇，介绍BFE开源项目的设计细节，包括BFE的设计思想、BFE的转发模型、BFE的关键机制和HTTPS的优化等；第三部分为操作篇，说明如何安装和部署BFE、如何在各种使用场景下配置BFE；第四部分为实现篇，从处理流程、插件机制、协议实现等方面说明BFE的实现机制。