方法对比

	Web Scraping	传感器数据收集
领域	调查方法论	调查方法论
方法族	Process / pipeline	Process / pipeline
起源年份	Late 1990s–2000s	1990s–2000s (widespread deployment with IoT ~2000s)
提出者	Early internet practitioners; systematised in research contexts from the late 1990s onward	Multidisciplinary; sensor networks formalized in engineering and computer science from the 1990s onward
类型	Automated digital data collection technique	Quantitative / mixed data collection technique
开创性文献	Mitchell, R. (2018). Web Scraping with Python: Collecting More Data from the Modern Web (2nd ed.). O'Reilly Media. ISBN: 978-1491985571	Chong, C.-Y., & Kumar, S. P. (2003). Sensor networks: Evolution, opportunities, and challenges. Proceedings of the IEEE, 91(8), 1247–1256.
别名	web harvesting, screen scraping, web crawling, automated data extraction	sensor measurement, instrumented data collection, physical sensor logging, IoT data collection
相关	5	5
摘要	Web scraping is a computational data collection technique in which software automatically retrieves and extracts structured or semi-structured content from websites. Widely used in social science, computational linguistics, economics, and information science, it enables researchers to assemble large datasets from publicly accessible web sources — such as news archives, social media platforms, government portals, and online marketplaces — that would be impractical to collect manually.	Sensor data collection uses physical or digital instruments to automatically capture quantitative measurements from the environment, human bodies, or machines over time. Common sensors measure temperature, motion, heart rate, location, light, sound, or chemical properties. Because the recording is automated and continuous, the method can produce high-frequency datasets with minimal researcher burden, making it central to IoT, environmental monitoring, wearable research, and behavioral studies.