Historical aspects Economic aspects Maintenance aspects Requirements, analysis, and design aspects Team development aspects Why there is no planning phase

❖ 自顶向下的分解 ❖ 模块划分 ❖ 库的设计与实现 ❖ 库的应用

▪ Architecture of Search Engines ▪ Index Construction ▪ Boolean Retrieval ▪ Vector Space Model for Ranked Retrieval

上海交通大学：Mining Massive Datasets（PPT讲稿）

• Models – HMM: Hidden Markov Model – maximum entropy Markov model – CRFs: Conditional Random Fields • Tasks – Chinese word segmentation – part-of-speech tagging – named entity recognition

• Preliminaries • Erosion and Dilation • Opening and Closing • The Hit-or-Miss Transformation • Some Basic Morphological Algorithms • Gray-Scale Morphology

上海交通大学：网络安全 Network Security（PPT讲稿，朱浩瑾）

 Processes  Threads  Inter-process communication  Classical IPC problems  Scheduling

 The security environment  Basics of cryptography  User authentication  Intrusions and attacks  Protection mechanisms  Trusted systems

◼ An Introduction ◼ Surveillance and Coverage ◼ Mobile Sensors ◼ Reality and Terrain ◼ Scalability and Heterogeneous Sensor Nets ◼ Multiple Sensor Nets and InterSensorNets ◼ Semantic Sensor Nets ◼ Detection and Anti-detection