JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) ›› 2024, Vol. 59 ›› Issue (9): 108-118.doi: 10.6040/j.issn.1671-9352.0.2023.334

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A method of online teaching platform selection based on online reviews

Xia LIANG(),Jie GUO*()   

  1. School of Management Science and Engineering, Shandong University of Finance and Economics, Jinan 250014, Shandong, China
  • Received:2023-07-28 Online:2024-09-20 Published:2024-10-10
  • Contact: Jie GUO E-mail:susanliangxia@163.com;guojie@mail.sdufe.edu.cn

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Abstract:

To better select online teaching platforms, give college students a better online course learning experience, and provide a reference for future online education and teaching, a method for selecting online teaching platforms based on online reviews is proposed. Firstly, user reviews from alternative online teaching platforms are collected by the crawler technology, and NLPIR-ICTCLAS Chinese word separation system is used to separate online words. Next, attribute word extraction is conducted using TF-IDF algorithm, along with a method that was manually selected to obtain the attribute set. The weights of attributes are determined using the mean square deviation method. Subsequently, sentiment analysis is carried out on the online reviews, with user emotional orientations represented as probability distributions regarding the evaluation scale. On this basis, the extended VIKOR method is used to select the optimal online teaching platform. Finally, the feasibility of the method proposed in this paper is demonstrated through an example and comparative analysis.

Key words: online teaching platform, online review, sentiment analysis, TF-IDF algorithm

CLC Number: 

  • C934

Table 1

Some emotional words and emotional attitudes"

情感态度 情感词
E+   完美、全、丰富、划算、值得、好、满意、可信赖、赞、合理、称心如意、多、名不虚传、丰厚、显著、负责、上头、便宜、周到、负责, 专业、方便、灵活、容易、纯正、耐心、nice等
E′ 一般、还行、凑合、很正常、差不多、普通、还可以等
E- 贵、垃圾、鸡肋、少、差、差评、破、欺骗、太难了、糊弄、烦、反感、过分、恶劣、头疼、five等

Table 2

Degree words and their corresponding weights"

分值 程度词
1 有点、颇为、稍微、挺、些微、多少、有些、略、略微、比较、较为、颇、蛮、过于、较、巨
2   很、最、非常、尤为、绝对、过于、很、相当、超、特别、分外、十分、甚、尤其、无比、更、越、更加、老、格外、惊人地、灰常、极、太、至、超级、very

Table 3

Evaluation of m alternative options regarding attribute Bj"

H A1 A2 … Am
H1 p1j1 p2j1 … pmj1
H2 p1j2 p2j2 … pmj2
H3 p1j3 p2j3 … pmj3
H4 p1j4 p2j4 … pmj4
H5 p1j5 p2j5 … pmj5

Table 4

Attribute terms and their TF-IDF values"

属性词 TF-IDF值 属性词 TF-IDF值
广告 0.570 643 942 287 151 80 功能 0.073 945 348 040 433 440
软件 0.424 827 148 550 505 70 电脑 0.068 936 544 982 383 900
视频 0.241 131 954 399 649 16 学校 0.064 617 177 402 105 260
课程 0.233 154 040 135 521 16 客服 0.062 628 465 681 981 420
手机 0.165 600 998 484 127 96 摄像头 0.062 365 549 569 659 444
后台 0.105 635 165 620 433 43 太卡 0.061 686 106 826 109 390
分屏 0.098 697 770 921 775 02 版本 0.054 769 831 545 521 160
课堂 0.092 985 846 478 328 17 界面 0.054 127 692 586 749 224

Table 5

Set of attributes"

属性 平台广告量 平台服务 平台资源 平台稳定性 平台适应性
符号 B1 B2 B3 B4 B5

Table 6

Distribution of the 4 alternative options concerning attribute B1"

H A1 A2 A3 A4
-2 5/13 0 78/125 0
-1 8/13 0 8/25 0
0 0 1 6/125 1
1 0 0 1/125 0
2 0 0 0 0

Table 7

Distribution of the 4 alternative options concerning attribute B2"

H A1 A2 A3 A4
-2 0 3/7 0 1/9
-1 7/8 3/7 0 7/9
0 1/8 1/7 1 1/9
1 0 0 0 0
2 0 0 0 0

Table 8

Distribution of the 4 alternative options concerning attribute B3"

H A1 A2 A3 A4
-2 2/47 0 0 0
-1 13/47 1/8 1/3 2/7
0 13/47 1/2 1/2 11/35
1 7/47 3/8 1/6 9/35
2 12/47 0 0 1/7

Table 9

Distribution of the 4 alternative options concerning attribute B4"

H A1 A2 A3 A4
-2 2/39 3/13 1/5 7/27
-1 7/13 5/13 3/10 8/27
0 11/39 4/13 2/5 8/27
1 4/39 1/13 1/10 1/9
2 1/39 0 0 1/27

Table 10

Distribution of the 4 alternative options concerning attribute B5"

H A1 A2 A3 A4
-2 5/34 2/21 5/21 3/28
-1 7/34 3/7 8/21 13/28
0 9/34 4/21 4/21 1/7
1 9/34 2/7 1/7 2/7
2 2/17 0 1/21 0

Table 11

Expected evaluation values for each alternative under different attributes"

H A1 A2 A3 A4
B1 -1.38 0 -1.56 0
B2 -0.88 -1.29 0 -1.00
B3 0.30 0.25 -0.17 0.26
B4 -0.49 -0.77 -0.60 -0.63
B5 0.00 -0.33 -0.62 -0.39

Table 12

Probability distributions of individual components in the positive ideal solutionZ+"

正理想解 H
-2 -1 0 1 2
z1+ 0 0 124/125 1/125 0
z2+ 0 6/7 1/7 0 0
z3+ 0 0 139/376 3/8 12/47
z4+ 0 61/135 2/5 1/9 1/27
z5+ 0 41/102 9/34 2/7 1/21

Table 13

Probability distributions of individual components in the positive ideal solution Z -"

负理想解 H
-2 -1 0 1 2
z1- 78/125 47/125 0 0 0
z2- 3/7 4/7 0 0 0
z3- 2/47 1/3 1/2 35/282 0
z4- 7/27 7/13 71/351 0 0
z5- 5/21 1/2 11/42 0 0

Table 14

Group utility values and individual regret values for the distances between the four alternatives"

备选方案 A1 A2 A3 A4
Ui 0.351 3 0.416 4 0.976 4 0.275 5
Ri 0.233 6 0.203 3 0.406 5 0.083 3

Table 15

Compromise assessment values based on the distances from the four alternative options"

备选方案 A1 A2 A3 A4
Ti 0.286 5 0.286 0 1 0

Fig.1

Ranking results of alternative options under different parameter settings"

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