เปรียบเทียบวิธี

	การสกัดความสัมพันธ์	การจำแนกข้อความ
สาขาวิชา	การทำเหมืองข้อความ	การทำเหมืองข้อความ
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	—	—
ผู้ริเริ่ม	—	—
ประเภท	NLP information-extraction task	Supervised NLP classification task
แหล่งต้นตำรับ	Zelenko, D., Aone, C. & Richardella, A. (2003). Kernel Methods for Relation Extraction. Journal of Machine Learning Research, 3, 1083-1106.	Joachims, T. (1998). Text Categorization with Support Vector Machines: Learning with Many Relevant Features. ECML 1998. Lecture Notes in Computer Science, vol 1398. Springer.
ชื่อเรียกอื่น	semantic relation extraction, İlişki Çıkarma (Relation Extraction)	text categorization, document classification, topic classification, metin sınıflandırma
ที่เกี่ยวข้อง	4	4
สรุป	Relation extraction is a natural-language-processing task that detects and classifies the semantic relations that hold between entities mentioned in text. Building on early kernel-based methods (Zelenko and colleagues, 2003) and later neural matching approaches (Baldini Soares and colleagues, 2019), it turns free-form text into structured facts of the form entity–relation–entity.	Text classification, also called text categorization, is a supervised natural-language-processing task that automatically assigns documents to predefined categories. Building on the support-vector-machine approach to text categorization established by Joachims (1998) and consolidated in the text-mining literature by Aggarwal and Zhai (2012), it powers tasks such as spam detection and topic classification by learning from labelled examples.