基于LDA的主题语义演化分析方法研究 * ——以锂离子电池领域为例

关鹏,王曰芬,傅柱

Analyzing Topic Semantic Evolution with LDA: Case Study of Lithium Ion Batteries

Peng Guan,Yuefen Wang,Zhu Fu

表2 各阶段主题过滤结果

Period1 Total Similarity Period2 Total Similarity Period3 Total Similarity Period4 Total Similarity TOPIC1-2 TOPIC0 0.6967 TOPIC2-0 TOPIC4 0.6414 TOPIC3-0 TOPIC16 0.5127 TOPIC4-0 TOPIC20 0.7551 TOPIC1-6 TOPIC4 0.6516 TOPIC2-1 TOPIC2 0.6311 TOPIC3-2 TOPIC9 0.6478 TOPIC4-1 TOPIC21 0.7117 TOPIC2-3 TOPIC26 0.5351 TOPIC3-4 TOPIC19 0.5928 TOPIC4-2 TOPIC28 0.5770 TOPIC2-4 TOPIC18 0.6746 TOPIC3-5 TOPIC13 0.7918 TOPIC4-3 TOPIC13 0.8123 TOPIC2-5 TOPIC13 0.7051 TOPIC3-6 TOPIC20 0.6012 TOPIC4-4 TOPIC15 0.7438 TOPIC2-6 TOPIC5 0.5293 TOPIC3-7 TOPIC17 0.6544 TOPIC4-5 TOPIC29 0.8251 TOPIC2-7 TOPIC11 0.5234 TOPIC3-8 TOPIC23 0.7040 TOPIC4-6 TOPIC17 0.8359 TOPIC2-12 TOPIC9 0.5126 TOPIC3-11 TOPIC2 0.5399 TOPIC4-8 TOPIC7 0.6125 TOPIC2-13 TOPIC28 0.5353 TOPIC3-12 TOPIC27 0.6356 TOPIC4-10 TOPIC22 0.6173 TOPIC2-14 TOPIC10 0.7870 TOPIC3-13 TOPIC6 0.6828 TOPIC4-11 TOPIC28 0.7419 TOPIC3-14 TOPIC4 0.7191 TOPIC4-12 TOPIC0 0.6675 TOPIC3-15 TOPIC10 0.8036 TOPIC4-13 TOPIC16 0.5920 TOPIC3-16 TOPIC28 0.5894 TOPIC4-14 TOPIC22 0.7608 TOPIC3-17 TOPIC29 0.7393 TOPIC4-15 TOPIC19 0.6163 TOPIC3-18 TOPIC22 0.7179 TOPIC4-16 TOPIC22 0.8565 TOPIC3-19 TOPIC18 0.8335 TOPIC4-17 TOPIC25 0.7555 TOPIC4-18 TOPIC24 0.7675 TOPIC4-19 TOPIC12 0.8842 TOPIC4-20 TOPIC10 0.8262 TOPIC4-21 TOPIC9 0.8343 TOPIC4-23 TOPIC18 0.7892 TOPIC4-24 TOPIC6 0.7144