基于LDA主题模型的文献关联分析及可视化研究

王丽, 邹丽雪, 刘细文

Visualizing Document Correlation Based on LDA Model

Wang Li,Zou Lixue,Liu Xiwen

表1 石墨烯领域主题-特征词分布

主题1 石墨烯建模仿真 主题2 石墨烯电化学性能 主题3 石墨烯FET器件 主题4 石墨烯反常霍尔效应 特征词 概率 特征词 概率 特征词 概率 特征词 概率 monolayers 0.040 surface structure 0.075 electric current-potential relationship 0.100 magnetic field effects 0.037 simulation and modeling 0.033 nanoparticles 0.073 electric conductivity 0.052 electric conductivity 0.030 multilayers 0.024 cyclic voltammetry 0.051 electric resistance 0.050 electron transport 0.027 electric field effects 0.022 nanocomposites 0.049 electric capacitance 0.043 nanoribbons 0.026 phonon 0.017 glassy carbon electrodes 0.033 electrodes 0.043 band structure 0.025 electric conductivity 0.016 Nano sheets 0.032 field effect transistors 0.038 fermi level 0.023 electric current carriers 0.015 electron transfer 0.022 double layer capacitors 0.035 quantum hall effect 0.020 optical transmission 0.014 electric impedance 0.021 raman spectra 0.034 landau level 0.018 semiconductor materials 0.014 x-ray diffraction 0.020 solar cells 0.023 magnetization 0.017 dielectric constant 0.013 ph 0.019 electric impedance 0.019 tight-binding method 0.015 主题5 石墨烯/ 碳纳米管复合材料 主题6石墨烯生物相容性 主题7 氧化石墨烯 主题8 石墨烯高 分子复合材料 特征词 概率 特征词 概率 特征词 概率 特征词 概率 films 0.045 human 0.031 reduction 0.039 polyesters 0.035 chemical vapor deposition 0.036 electronic device fabrication 0.021 oxidation 0.036 carbon nanotubes 0.034 carbon nanotubes 0.034 surface treatment 0.016 adsorption 0.033 epoxy resins 0.022 annealing 0.026 homo sapiens 0.014 surface area 0.033 polysiloxanes 0.020 electric conductors 0.025 chemically modified electrodes 0.014 Nano sheets 0.017 polyimides 0.020 etching 0.020 ph 0.014 nanostructured materials 0.017 polyurethanes 0.019 metals 0.020 quantum dots 0.013 sonication 0.017 polyamides 0.018 coating process 0.020 stability 0.013 exfoliation 0.016 polyoxyalkylenes 0.015 electrodes 0.018 fluorescence 0.012 pore size distribution 0.016 polyethers 0.015 sheet resistance 0.018 nanoscale surface modification 0.012 pore size 0.015 coating materials 0.014 主题9 石墨烯 纳米带 主题10 石墨烯 复合材料的光学性 主题11 石墨烯 复合材料的力学性 主题12 石墨烯 储能电池 特征词 概率 特征词 概率 特征词 概率 特征词 概率 density of states 0.057 raman spectra 0.093 nanocomposites 0.049 secondary batteries 0.063 band gap 0.051 microstructure 0.044 thermal conductivity 0.031 carbon nanotubes 0.057 nanoribbons 0.044 x-ray photoelectron spectra 0.041 thermal stability 0.030 composites 0.053 density functional theory 0.043 nanoparticles 0.041 polymer morphology 0.028 fluoropolymers 0.047 band structure 0.036 nanocomposites 0.038 young's modulus 0.028 carbon black 0.035 electronic structure 0.035 surface structure 0.037 electric conductivity 0.024 battery anodes 0.034 binding energy 0.026 nanostructures 0.036 carbon nanotubes 0.020 lithium-ion secondary batteries 0.023 electron density 0.023 uv and visible spectra 0.032 tensile strength 0.020 heat treatment 0.020 fermi level 0.020 nanosheets 0.029 molecular dynamics simulation 0.020 battery cathodes 0.015 band structure 0.020 ir spectra 0.025 strain 0.017 carbon fibers 0.015