Knowledge Engineering Ⅳ | KG Construction from Structured data
Extracting knowledge from heterogeneous data sources to form a knowledge graph
Basic of Relation Database在表格中，我们会遇到同一事物的不同表示或者相同的表示针对不同事物，以及一些信息的重复记录，我们可以提取表格中的某些信息形成新的表格。
Database terms:
A database is a collection of data
Data is organized into one or more tables
Each row is a record
Each column ...
Knowledge Engineering Ⅲ | Reasoning
KG reasoning is to infer new knowledge from the given KG.
logical reasoningdeductive reasoning 推导结论若下雨，则草地会变湿。因为今天下雨了，所以今天草地是湿的。
forward reasoning
start with available data and use inference rules to extract more data until a goal is reached.
RDFS rules:
123a rdfs:domain x . u a y ._____________ ...
Knowledge Engineering Ⅱ | Representation
XML,RDF,RDFS,OWL
Knowledge Engineering Ⅰ| Introduction
Definition
A field of AI that tries to emulate the judgment and behavior of a human expert in a given field. KE refers to all technical, scientific and social aspects involved in building, maintaining and using knowledge-based systems.
knowledge-based system: a computer program that reasons a ...
操作系统实验：Linux进程管理及其扩展
阅读分析Linux内核源代码, 了解进程控制块, 进程队列等数据结构，实现一个系统调用hide，使得可以根据指定的参数隐藏进程，使用户无法使用ps或top观察到进程状态。
Natural Language Processing
NLP课程不完全记录
Grasshopper
Grasshopper