## 4 Results and Discussion
### Results and Discussions of Attribute Bidirectional Performance
#### 4.3.1 Results of Attribute Bidirectional Performance

Table 7: Top 20 well-performed sub-attributes with the strongest positive sentiment polarity with respect to six attributes in five-star hotels. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multicolumn{1}{c}{**Value**} & \multicolumn{2}{c}{**Location**} & \multicolumn{2}{c}{**Service**} \\ \hline
**Sub-Attributes** & **Sentiment Values** & **Sub-Attributes** & **Sentiment Values** & **Sub-Attributes** & **Sentiment Values** \\ \hline price & \(-3459.05\) & hotel & \(-24,483.27\) & service & \(-14,546.04\) \\ money & \(-2399.80\) & location & \(-5800.25\) & staff & \(-8881.41\) \\ value & \(-1547.67\) & London & \(-3815.88\) & experience & \(-3077.38\) \\ overall & \(-1298.75\) & great & \(-3269.14\) & food & \(-2274.30\) \\ quality & \(-1208.69\) & place & \(-2614.52\) & quality & \(-1240.45\) \\ rate & \(-1145.92\) & overall & \(-1386.27\) & excellent & \(-708.58\) \\ cheap & \(-861.07\) & close & \(-1289.30\) & deliver & \(-629.82\) \\ deal & \(-662.34\) & near & \(-720.90\) & attention & \(-493.67\) \\ opinion & \(-291.08\) & locate & \(-560.99\) & attentive & \(-261.83\) \\ discount & \(-265.94\) & station & \(-509.16\) & exceptional & \(-141.31\) \\ compare & \(-265.43\) & central & \(-462.92\) & superb & \(-138.37\) \\ reasonable & \(-218.69\) & tube & \(-332.92\) & cleanliness & \(-134.34\) \\ represent & \(-69.34\) & convenient & \(-303.54\) & outstanding & \(-113.61\) \\ bargain & \(-42.48\) & base & \(-302.06\) & presentation & \(-50.10\) \\ competitive & \(-27.97\) & perfect & \(-287.74\) & impecable & \(-40.52\) \\ advertised & \(-19.33\) & ideal & \(-255.15\) & cleanness & \(-15.81\) \\ disproportionate & \(-16.96\) & position & \(-198.63\) & exemplary & \(-10.32\) \\ ratio & \(-16.09\) & spot & \(-166.93\) & servicing & \(-8.97\) \\ commensurate & \(-13.71\) & distance & \(-162.97\) & middling & \(-8.62\) \\ inexpensive & \(-12.85\) & boutique & \(-145.95\) & tentativeness & \(-7.46\) \\ \hline \multicolumn{1}{c}{**Room**} & \multicolumn{2}{c}{**Cleanliness**} & \multicolumn{2}{c}{**Sleep Quality**} \\ \hline
**Sub-Attributes** & **Sentiment Values** & **Sub-Attributes** & **Sentiment Values** & **Sub-Attributes** & **Sentiment Values** \\ \hline room & \(-53,\!448.27\) & room & \(-27,\!918.25\) & bed & \(-3801.36\) \\ bed & \(-3716.42\) & very & \(-11,\!076.76\) & sleep & \(-3001.91\) \\ bathroom & \(-3220.28\) & clean & \(-3866.42\) & comfortable & \(-886.78\) \\ clean & \(-2019.59\) & bed & \(-3683.61\) & wake & \(-581.08\) \\ although & \(-1719.86\) & nice & \(-3652.38\) & pillow & \(-428.58\) \\ suite & \(-1527.98\) & bathroom & \(-3378.96\) & mattress & \(-300.63\) \\ large & \(-1048.14\) & well & \(-3181.78\) & comfy & \(-188.85\) \\ size & \(-800.25\) & comfortable & \(-1054.04\) & bedding & \(-145.26\) \\ bedroom & \(-783.50\) & extremely & \(-1009.08\) & duvet & \(-136.03\) \\ spacious & \(-417.60\) & excellent & \(-658.82\) & linen & \(-131.69\) \\ deluxe & \(-364.08\) & spacious & \(-441.31\) & soundproofing & \(-70.98\) \\ superior & \(-270.01\) & modern & \(-437.53\) & sleepless & \(-65.18\) \\ apartment & \(-211.28\) & polite & \(-300.16\) & proofing & \(-51.64\) \\ junior & \(-176.58\) & luxurious & \(-235.98\) & peaceful & \(-44.81\) \\ appoint & \(-160.08\) & super & \(-234.58\) & insulation & \(-44.18\) \\ furnish & \(-65.87\) & amenuity & \(-229.05\) & soundproof & \(-40.43\) \\ decorate & \(-61.57\) & appoint & \(-199.73\) & restless & \(-39.13\) \\ spotless & \(-28.02\) & comfy & \(-198.85\) & comforter & \(-37.62\) \\ furnished & \(-26.66\) & maintain & \(-141.21\) & disturbed & \(-34.95\) \\ airy & \(-17.59\) & functional & \(-140.51\) & sleeper & \(-28.19\) \\ \hline \hline \end{tabular}
\end{table} 
Table 8: Top 20 poorly performed sub-attributes with the strongest negative sentiment polarity with respect to six attributes in five-star hotels.