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夯实地理信息系统基础知识,走向开发.文件中重点罗列与分析了地理信息系统的热点知识,并对应解答.

linux网络操作系统 知识梳理linux网络操作系统 知识梳理linux网络操作系统 知识梳理 各章节重点总结

Question answering (QA) has become a popular way for humans to access billion-scale knowledge bases. Unlike web search, QA over a knowledge base gives out accurate and concise results, provided that natural language questions can be understood and mapped precisely to structured queries over the knowledge base. The challenge, however, is that a human can ask one question in many different ways. Previous approaches have natural limits due to their representations: rule based approaches only understand a small set of “canned” questions, while keyword based or synonym based approaches cannot fully understand the questions. In this paper, we design a new kind of question representation: templates, over a billion scale knowledge base and a million scale QA corpora. For example, for questions about a city’s population, we learn templates such as What’s the population of $city?, How many people are there in $city?. We learned 27 million templates for 2782 intents. Based on these templates, our QA system KBQA effectively supports binary factoid questions, as well as complex questions which are composed of a series of binary factoid questions. Furthermore, we expand predicates in RDF knowledge base, which boosts the coverage of knowledge base by 57 times. Our QA system beats all other state-of-art works on both effectiveness and efficiency over QALD benchmarks.

2018年9月版本计算机三级等级考试知识点手动整理，告别厚重的课本。还包含了考纲分析和考点解析。其实每年考试点都一样，所以18年以后的考试也能看这个

操作系统知识点汇总

基于区块链智能合约的深度学习推荐系统知识图谱的分散构建 Decentralized Construction of Knowledge Graphs for Deep Recommender Systems Based on Blockchain-Powered Smart Contracts 摘要 自2012年Google首次提出知识图谱以来，知识图谱得到了业界和学术界的广泛关注，并在信息检索、在线推荐、问答等领域得到了广泛的应用。然而，传统的知识图谱集中构建面临着许多挑战，如费时费力、易被篡改或篡改、缺乏监督等。因此，本文提出了一种新的基于众包的分散式知识图谱构建方法，并利用区块链驱动的

一百个知识点1. 操作系统的基本功能 答：处理机管理、存储器管理、设备管理、文件管理、用户接口 2. 操作系统的作用 答：1．OS作为用户与计算机硬件系统之间的接口 2．OS作为计算机系统资源的管理者 3．OS实现了对计算机资源的抽象 3. 操作系统的基本特征 答：并发性、共享性、虚拟性、异步性 4. 并发与并行的区别 答：1．并行：两个或多个事件在同一时刻发生 2．并发：两个或多个事件在同一时间间隔内发生