# Insight from Review Articles of Life Cycle Assessment for Buildings
## 3 Results
### Scientometric Analysis
#### 3.1.4 Analysis of Co-Authorship  
Academic collaboration can enhance professional knowledge of scholars and increase the quantity as well as quality of their articles. An author cooperative network of the selected literature was analyzed by VOSviewer, and the minimum number of articles and minimum citations of an author were set to 3 and 100, respectively. Finally, 36 authors were identified to meet the thresholds from a total of 1198 authors, which are displayed  
Figure 5: Mapping of countries active in LCA_B review paper. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Country**} & **Total Link** & **Article** & **Citation** & **Norm.** & **Avg.** & **Avg. Norm.** & **Avg. Pub.** \\  & **Strength** & **Number** & **Number** & **Citations** & **Citations** & **Citations** & **Citations** & **Year** \\ \hline North Ireland & 41 & 6 & 1199 & 37.5 & 199.8 & 6.25 & 2022 \\ China & 377 & 45 & 4442 & 81.7 & 98.7 & 1.82 & 2020 \\ Malaysia & 45 & 6 & 1215 & 10.2 & 202.5 & 1.71 & 2018 \\ Portugal & 21 & 10 & 698 & 13.2 & 69.8 & 1.32 & 2019 \\ Australia & 251 & 31 & 3160 & 39.4 & 101.9 & 1.27 & 2019 \\ India & 56 & 7 & 1632 & 8.9 & 233.1 & 1.27 & 2016 \\ England & 216 & 31 & 2079 & 34.5 & 67.1 & 1.11 & 2020 \\ Belgium & 125 & 15 & 928 & 16.4 & 61.9 & 1.09 & 2021 \\ USA & 245 & 36 & 3874 & 38.7 & 107.6 & 1.08 & 2018 \\ Switzerland & 64 & 11 & 1169 & 11.6 & 106.3 & 1.06 & 2016 \\ Italy & 166 & 33 & 3036 & 34.8 & 92.0 & 1.05 & 2019 \\ Spain & 275 & 30 & 3617 & 31.1 & 120.6 & 1.04 & 2018 \\ Denmark & 62 & 13 & 682 & 12.6 & 52.5 & 0.97 & 2021 \\ Germany & 61 & 15 & 1114 & 13.7 & 74.3 & 0.91 & 2019 \\ Lithuania & 27 & 7 & 256 & 6.0 & 36.6 & 0.85 & 2020 \\ Austria & 98 & 10 & 472 & 8.1 & 47.2 & 0.81 & 2021 \\ Canada & 247 & 32 & 2297 & 25.8 & 71.8 & 0.81 & 2021 \\ Sweden & 45 & 6 & 492 & 4.6 & 82.0 & 0.77 & 2017 \\ Norway & 69 & 11 & 543 & 7.8 & 49.4 & 0.71 & 2019 \\ France & 97 & 22 & 1271 & 14.6 & 57.8 & 0.66 & 2019 \\ Brazil & 27 & 13 & 495 & 7.3 & 38.1 & 0.56 & 2020 \\ Finland & 23 & 5 & 193 & 2.6 & 38.6 & 0.51 & 2020 \\ Scotland & 32 & 5 & 236 & 2.3 & 47.2 & 0.47 & 2018 \\ South Korea & 60 & 12 & 573 & 5.1 & 47.8 & 0.42 & 2014 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Regional analysis of LCA-B review articles. in Figure 6. In general, five main collaboration groups were observed to contain at least three scholars, for instance, [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], and [PERSON] are in the same cluster, indicating that they have maintained a close collaborative relationship with effective knowledge exchange and have jointly produced multiple publications focused on LCA-B. A more detailed quantitative measurements of the scholars are sorted by the scores of average normal citations, as shown in Table 4. Although [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], and [PERSON] are the most active researchers recently, they are actually among the most influential scholars in the domain of LCA-B review studies regarding the scores of average normal citations. Furthermore, [PERSON] and [PERSON] have made the greatest contribution in the field of LCA-B review research considering that they have the highest total citations.