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Для Герасимова 2. Разработка модели потребительских предпочтений на основе данных рекомендательной сети epinions com
7 кластеров
Рисунок 0.47 – Диаграмма центра кластера 1 для случая 7 кластеров
[1] "Points: 27"
Call:
lm(formula = overall
durability + eou + battery + lag + picture,
data = x)
Residuals:
Min 1Q Median 3Q Max
-0.81342 -0.46373 -0.00031 0.36087 0.84308
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) -2.00906 0.67784 -2.964 0.00741 **
durability 0.55907 0.15106 3.701 0.00132 **
eou 0.34061 0.14203 2.398 0.02585 *
battery 0.01434 0.11999 0.120 0.90599
lag 0.34350 0.14024 2.449 0.02317 *
picture 0.26742 0.14615 1.830 0.08152 .
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Residual standard error: 0.5666 on 21 degrees of freedom
(11 observations deleted due to missingness)
Multiple R-squared: 0.8055, Adjusted R-squared: 0.7592
F-statistic: 17.4 on 5 and 21 DF, p-value: 7.709e-07
Рисунок 0.48 – Диаграмма центра кластера 1 для случая 7 кластеров
[1] "Points: 238"
Call:
lm(formula = overall
durability + eou + battery + lag + picture,
data = x)
Residuals:
Min 1Q Median 3Q Max
-1.69534 -0.35496 0.05626 0.41386 1.70970
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) -1.01351 0.23781 -4.262 2.95e-05 ***
durability 0.42763 0.05778 7.402 2.46e-12 ***
eou 0.24929 0.05125 4.865 2.12e-06 ***
battery 0.13328 0.04017 3.318 0.00105 **
lag 0.13506 0.04634 2.914 0.00391 **
picture 0.35855 0.05291 6.776 1.01e-10 ***
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Residual standard error: 0.5813 on 232 degrees of freedom
(83 observations deleted due to missingness)
Multiple R-squared: 0.7206, Adjusted R-squared: 0.7146
F-statistic: 119.7 on 5 and 232 DF, p-value: < 2.2e-16
Рисунок 0.49 – Диаграмма центра кластера 3 для случая 7 кластеров
[1] "Points: 95"
Call:
lm(formula = overall
durability + eou + battery + lag + picture,
data = x)
Residuals:
Min 1Q Median 3Q Max
-3.4039 -0.2629 0.0750 0.3925 1.7006
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) -1.13866 0.60288 -1.889 0.0622 .
durability 0.52438 0.09967 5.261 9.80e-07 ***
eou 0.20869 0.11198 1.864 0.0657 .
battery 0.13445 0.07656 1.756 0.0825 .
lag -0.02338 0.09082 -0.257 0.7975
picture 0.45908 0.08558 5.365 6.37e-07 ***
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Residual standard error: 0.7632 on 89 degrees of freedom
(59 observations deleted due to missingness)
Multiple R-squared: 0.5451, Adjusted R-squared: 0.5195
F-statistic: 21.33 on 5 and 89 DF, p-value: 5.785e-14
Рисунок 0.50 – Диаграмма центра кластера 4 для случая 7 кластеров
[1] "Points: 288"
Call:
lm(formula = overall
durability + eou + battery + lag + picture,
data = x)
Residuals:
Min 1Q Median 3Q Max
-3.2904 -0.3663 0.0181 0.4335 1.5304
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) -1.14232 0.25760 -4.434 1.32e-05 ***
durability 0.38806 0.05555 6.986 2.04e-11 ***
eou 0.21634 0.05034 4.297 2.38e-05 ***
battery 0.07228 0.04174 1.732 0.084444 .
lag 0.20020 0.05271 3.798 0.000179 ***
picture 0.44026 0.05465 8.056 2.24e-14 ***
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Residual standard error: 0.6676 on 282 degrees of freedom
(66 observations deleted due to missingness)
Multiple R-squared: 0.6343, Adjusted R-squared: 0.6278
F-statistic: 97.84 on 5 and 282 DF, p-value: < 2.2e-16
Рисунок 0.51 – Диаграмма центра кластера 5 для случая 7 кластеров
[1] "Points: 327"
Call:
lm(formula = overall
durability + eou + battery + lag + picture,
data = x)
Residuals:
Min 1Q Median 3Q Max
-3.01930 -0.40696 -0.02817 0.46256 1.94917
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) -1.36827 0.27324 -5.008 9.11e-07 ***
durability 0.42924 0.05155 8.327 2.43e-15 ***
eou 0.22896 0.04528 5.057 7.18e-07 ***
battery 0.15957 0.04021 3.968 8.94e-05 ***
lag 0.06031 0.04609 1.308 0.192
picture 0.49853 0.04628 10.773 < 2e-16 ***
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Residual standard error: 0.6678 on 321 degrees of freedom
(150 observations deleted due to missingness)
Multiple R-squared: 0.6041, Adjusted R-squared: 0.5979
F-statistic: 97.96 on 5 and 321 DF, p-value: < 2.2e-16
Рисунок 0.52 – Диаграмма центра кластера 6 для случая 7 кластеров
[1] "Points: 196"
Call:
lm(formula = overall
durability + eou + battery + lag + picture,
data = x)
Residuals:
Min 1Q Median 3Q Max
-1.61403 -0.38395 0.01626 0.51258 1.05077
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) -0.42443 0.46441 -0.914 0.361917
durability 0.33631 0.08658 3.884 0.000142 ***
eou 0.11039 0.06340 1.741 0.083248 .
battery 0.14491 0.05114 2.834 0.005098 **
lag 0.21387 0.07633 2.802 0.005605 **
picture 0.26624 0.06504 4.093 6.29e-05 ***
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Residual standard error: 0.6051 on 190 degrees of freedom
(67 observations deleted due to missingness)
Multiple R-squared: 0.4068, Adjusted R-squared: 0.3912
F-statistic: 26.06 on 5 and 190 DF, p-value: < 2.2e-16
Рисунок 0.53 – Диаграмма центра кластера 7 для случая 7 кластеров
[1] "Points: 88"
Call:
lm(formula = overall
durability + eou + battery + lag + picture,
data = x)
Residuals:
Min 1Q Median 3Q Max
-2.02008 -0.33967 0.02158 0.43355 1.36583
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) -0.40100 0.47808 -0.839 0.404038
durability 0.40855 0.10866 3.760 0.000318 ***
eou 0.14718 0.09704 1.517 0.133195
battery -0.01338 0.08461 -0.158 0.874762
lag 0.02264 0.10461 0.216 0.829204
picture 0.54268 0.11287 4.808 6.81e-06 ***
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Residual standard error: 0.7176 on 82 degrees of freedom
(38 observations deleted due to missingness)
Multiple R-squared: 0.5684, Adjusted R-squared: 0.5421
F-statistic: 21.6 on 5 and 82 DF, p-value: 9.952e-14
Сравнение групповых предпочтений
Рисунок 0.54 – График предпочтений по автономной работе для 7 кластеров
Рисунок 0.55 – График предпочтений по надежности для 7 кластеров
Рисунок 0.56 – График предпочтений по простоте использования для 7 кластеров
Рисунок 0.57 – График предпочтений по скорости срабатывания для 7 кластеров
Рисунок 0.58 – График предпочтений по качеству снимка для 7 кластеров
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