关键词： 信息检索   搜索引擎  

ISBN: (纸本)9787302660989

摘要： 本书共分为3篇, 涵盖信息检索和搜索引擎的各个方面: 第1篇 (第1-3章) 为基础篇, 介绍信息检索和搜索引擎的基本概念、原理以及信息采集、文本转换方法; 第2篇 (第4-6章) 为技术篇, 涵盖索引创建、用户交互、检索模型与搜索排序等关键技术; 第3篇 (第7章和第8章) 为应用篇, 讨论搜索引擎评价和链接分析, 展示搜索引擎在不同领域的应用和发展趋势。全书提供了大量应用实例, 每章后均附有习题。

关键词： 教育数字化   搜索引擎优化课程   知识图谱  

摘要： 教育数字化背景下，知识图谱作为一种有效的知识管理形式，能够对海量信息进行结构化、语义化和可视化处理，从而提高知识的利用率。它对推动教育内容的结构化与体系化建设具有重要价值。通过对搜索引擎优化岗位工作任务进行分解，提炼其中的知识点，构建系统知识图谱，并融合课程思政，以掌握解决问题的方法，提升岗位实践能力，探索学科知识图谱在教育实践中的有效性，为数字化转型提供经验借鉴，推动教育领域创新发展。

摘要： 谷歌母公司Alphabet是目前全球互联网广告收入最高的公司，广告业务是其最大的收入来源。Alphabet发布的2023财年Q3财报显示，Alphabet第三季度营收为766.93亿美元，较上年同期的690.92亿美元增长11%；净利润为196.89亿美元，较上年同期的139.10亿美元增长42%。2023财年Q3，谷歌广告业务营收为596.47亿美元，较上年同期的544.82亿美元增长9%；其中，谷歌搜索和其他广告收入为440.26亿美元，较上年同期的395.39亿美元增长11%;YouTube广告收入为79.52亿美元，较上年同期的70.71亿美元增长12%；谷歌网络收入为76.69亿美元，较上年同期的78.72亿美元下降3%。

摘要： 7月25日，OpenAI宣布正在测试新的人工智能(AI)搜索工具SearchGPT，可以实时访问来自互联网的信息，旨在为用户提供更具时效性和更准确的信息。该搜索引擎以一个大文本框开始，询问用户“您在找什么？”客户输入搜索内容后，SearchGPT并不是返回一个简单的链接列表，而是试图对它们进行组织和理解。

摘要： Web search engines accumulate substantial quantities of personal data extracted from the queries of internet users. These datasets encompass a range of sensitive factors, including in- dividual interests, engagements, health issues, work chronicles, religious principles, and political orientations. This aggregation of data components heightens the threat to user privacy, especially in situations characterised by data breaches, unauthorised access, or inappropriate exploitation of their private information. The present thesis introduces a unique solution Privacy Extension for Search Engine (PESE), which combines the concepts of unlinkability and indistinguishability to enhance the privacy and anonymity of web users. Our solution employs a Trusted Execution Environment (TEE) to ensure the confidentiality of search queries, thereby thwarting any potential monitoring or interception by search engines and external entities. TEE consists of a secure processor component that offers selected programmes executing on the processor with data security, secrecy, as well as integrity. It effectively isolates these applications from the Rich Execution Environment (REE). We utilize Enarx, an open-source deployment framework for designing and building our TEE application. It provides a robust and flexible environment that facilitates the secure execution of workloads within a TEE. Enarx's flexibility in accommodating different hardware architectures and platforms allows our PESE solution to be easily deployed across diverse systems without signif- icant adjustments. This wide-ranging compatibility increases the applicability and accessibility of our solution, making it suitable for a wider array of environments. Throughout this thesis, we expand on the implementation of PESE via TEE, elaborating on its operation's complexities. Furthermore, we conduct a thorough review of the Enarx deployment framework, highlighting its central role in the design and development of our TEE applicati

摘要： The act of seeking information pertaining to medical treatments and self-diagnosis is one of the applications of search engines. However online documents and websites offer convenience and efficiency in accessing information, it is important to acknowledge that they may contain incorrect and also unreliable information, which can potentially lead to adverse consequences such as making harmful medical decisions. This is particularly concerning when search engine users rely solely on the information they encounter through search results, without conducting additional research or seeking guidance from qualified medical professionals. Therefore, it is essential to assess the impact of search engines on users' behavior and decision-making processes, especially when it comes to health-related decisions. Previous research has been conducted to evaluate the extent to which people may be affected by search engine results when they are responding to health-related questions, upon which our study is based (Pogacar et al., 2017; Ghenai et al., 2020). Their findings indicated that individuals tend to make correct decisions when supplied with a series of correct information as search results, and conversely, they tend to make wrong decisions when presented with a group of search results with incorrect information. The prior research studies used a methodology whereby study participants were presented with static search results, without the ability to actively query a search engine. In our study, we designed and conducted a controlled laboratory study which followed a within-subject design that consisted of presenting a group of participants with 12 topics from TREC 2021 Health Misinformation track with each topic comprising a particular health issue and its corresponding suggested medical treatment. These treatments were categorized as either helpful or unhelpful for each health issue, but the participants were not aware of the true effectiveness of each treatment. The participan

关键词： Open   搜索引擎   人工智能   云计算   微软   20世纪90年代以来   反垄断审查   AI  

摘要： 作为OpenAl的主要投资者,微软却没有获得应有的控制权在11月17日之前,硅谷的普遍看法是,微软(Microsoft)与OpenAI的合作取得了令人羡慕的成功。这项投资促进了微软的云计算业务,使其能够获取OpenAI最厉害的技术,为旗下的搜索引擎必应注入新的活力,并帮助简化了它在人工智能方面的研究工作。由于微软持有OpenAI不到50%的股份,使其避免了自20世纪90年代以来一直如影随形的反垄断审查。

关键词： 业务决策   大型银行   前沿科技   业务方向   创新趋势   全球系统重要性银行   商业银行   搜索引擎  

摘要： 科技趋势研究是对全球大型银行关注的科技发展领域、创新趋势和潜在突破进行分析.本文的研究面向金融稳定理事会2021年发布的30家全球系统重要性银行,通过研究其在前沿科技领域相关搜索引擎的资讯数频次,以一窥其业务方向,为支持商业银行的业务决策提供建议.