# Urban Color Perception and Sentiment Analysis Based on Deep Learning and Street View Big Data
## 3 Experiments and Results
### Analysis of Color Indicators and Emotional Perception
#### 3.3.2 OLS Regression Analysis Versus Geographically Weighted Regression Analysis
\begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline  & & & & \multicolumn{3}{c}{**OLS**} & & & \multicolumn{3}{c}{**GRW**} \\ \cline{3-10}  & & **Ratio** & **P** & **Robust\_pr** & **Koenker** & **Adj** & **AICc** & **Jarque–Bera** & **Adj** & **AICc** \\ \hline \multirow{2}{*}{Beautiful} & Complexity & \(-0.000481\) & \(0.988\) & \(0.988\) & \(0.024\)* & \(0.03\) & \(-920.36\) & \(0.000\)* & \(0.15\) & \(-1518.78\) \\ \cline{2-10}  & Coordination & \(0.066143\) & \(0.000\)* & \(0.000\)* & \(0.00\)* & & & & & & \\ \hline \multirow{2}{*}{Boring} & Complexity & \(0.230475\) & \(0.000\)* & \(0.000\)* & \(0.582\) & \(0.05\) & \(-9025.48\) & \(0.000\)* & \(0.24\) & \(-10,058.43\) \\ \cline{2-10}  & Coordination & \(0.00341\) & \(0.113\) & \(0.117\) & & & & & & & \\ \hline \multirow{2}{*}{Depressing} & Complexity & \(0.034976\) & \(0.063\) & \(0.063\) & \(0.017\)* & \(0.03\) & \(-6152.9\) & \(0.000\)* & \(0.15\) & \(-6769.57\) \\ \cline{2-10}  & Coordination & \(-0.035787\) & \(0.000\)* & \(0.000\)* & & & & & & & \\ \hline \multirow{2}{*}{Lively} & Complexity & \(-0.362119\) & \(0.000\)* & \(0.000\)* & \(0.316\) & \(0.04\) & \(-2569.97\) & \(0.000\)* & \(0.23\) & \(-3600.65\) \\ \cline{2-10}  & Coordination & \(-0.009735\) & \(0.021\)* & \(0.023\)* & & & & & & & \\ \hline \multirow{2}{*}{Safe} & Complexity & \(0.017164\) & \(0.534\) & \(0.533\) & \multirow{2}{*}{\(0.078\)} & \multirow{2}{*}{\(0.03\)} & \multirow{2}{*}{\(-2492.61\)} & \multirow{2}{*}{\(0.000\)*} & \multirow{2}{*}{\(0.15\)} & \multirow{2}{*}{\(-3071.09\)} \\ \cline{2-10}  & Coordination & \(0.053784\) & \(0.000\)* & \(0.000\)* & & & & & & \\ \hline \multirow{2}{*}{Wealthy} & Complexity & \(-0.021679\) & \(0.259\) & \(0.257\) & \multirow{2}{*}{\(0.028\)*} & \multirow{2}{*}{\(0.02\)} & \multirow{2}{*}{\(-5961.1\)} & \multirow{2}{*}{\(0.000\)*} & \multirow{2}{*}{\(0.15\)} & \multirow{2}{*}{\(-6578.42\)} \\ \cline{2-10}  & Coordination & \(0.031954\) & \(0.000\)* & \(0.000\)* & & & & & & \\ \hline \hline \end{tabular}
\begin{tabular}{c c c c c c c c c c c} \hline \hline  & & & \multicolumn{3}{c}{AIC is the Akaike Information Criterion, which measures the goodness of fit of a statistical model; R2 is the goodness of fit. Koenker (BP) is used to determine whether the explanatory variables of the model have a consistent relationship with the dependent variable in both geographic and data space; Jarque–Bera is a test of the skewness and kurtosis of the data, which evaluates whether the assumption that the given data follow a normal distribution with unknown mean and variance is held, with * indicating that the coefficients next to each other are statistically significant [41].  
\end{table} 
Table 3: OLS and GRW regression analysis. variability of the influence between color complexity and coordination and emotional perception [41]. The results of the GWR model's coefficient statistics (Table 4) indicate that color complexity and coordination exert a notable influence on emotional perceptions, with considerable variability being observed. The complexity of color has a significant positive effect on perceptions of beauty, boredom, depression, security, and richness and a significant negative effect on perceptions of liveliness. Similarly, the coordination of color has a significant positive effect on perceptions of beauty, boredom, security and richness and a significant negative effect on perceptions of depression and liveliness. In particular, a high level of color complexity is likely to result in visual fatigue and confusion, as well as increased feelings of boredom and depression. Conversely, a moderate complexity can enhance environmental recognition and diversity, as well as a sense of security and wealth. Complex color schemes are often associated with luxury and affluence. However, excessive complexity has the opposite effect, diminishing the sense of liveliness. Color harmony positively contributes to perceptions of beauty and safety, enhances overall visual harmony and comfort, and reduces feelings of depression.