sustweetability: infrastructure sustainability-related topic classification … · 2015. 12. 9. ·...
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Sustweetability: Infrastructure Sustainability-Related Topic Classification in Social Media
Abstract
Keywords:
1 Introduction
Nik-Bakht et al. 2015 Sustweetability: Infrastructure Sustainability-related topic classification in social media
Proc. of the 32nd CIB W78 Conference 2015, 27th-29th 2015, Eindhoven, The Netherlands
2 Background literature and related works
Nik-Bakht et al. 2015 Sustweetability: Infrastructure Sustainability-related topic classification in social media
Proc. of the 32nd CIB W78 Conference 2015, 27th-29th 2015, Eindhoven, The Netherlands
Nik-Bakht et al. 2015 Sustweetability: Infrastructure Sustainability-related topic classification in social media
Proc. of the 32nd CIB W78 Conference 2015, 27th-29th 2015, Eindhoven, The Netherlands
𝑃(𝑐|𝑑) ∝ 𝑃(𝑐) × ∏ 𝑃(𝑓 |𝑐)
3 Methods
3.1 Case study projects & data collection
Nik-Bakht et al. 2015 Sustweetability: Infrastructure Sustainability-related topic classification in social media
Proc. of the 32nd CIB W78 Conference 2015, 27th-29th 2015, Eindhoven, The Netherlands
Table 1 Case study projects and the number of tweets from each project used in the analysis
3.2 Annotating training set through crowdsourcing
Nik-Bakht et al. 2015 Sustweetability: Infrastructure Sustainability-related topic classification in social media
Proc. of the 32nd CIB W78 Conference 2015, 27th-29th 2015, Eindhoven, The Netherlands
Figure 1 Homepage of the GWAP run for annotating the training set through crowdsourcing
3.3 Training classifiers
Nik-Bakht et al. 2015 Sustweetability: Infrastructure Sustainability-related topic classification in social media
Proc. of the 32nd CIB W78 Conference 2015, 27th-29th 2015, Eindhoven, The Netherlands
Figure 2 Classification combinations tested in this study
Nik-Bakht et al. 2015 Sustweetability: Infrastructure Sustainability-related topic classification in social media
Proc. of the 32nd CIB W78 Conference 2015, 27th-29th 2015, Eindhoven, The Netherlands
4 Results
Table 2 Performance of different classifiers (in terms of accuracy)
Nik-Bakht et al. 2015 Sustweetability: Infrastructure Sustainability-related topic classification in social media
Proc. of the 32nd CIB W78 Conference 2015, 27th-29th 2015, Eindhoven, The Netherlands
Figure 1 Accuracy of the optimal classifier (optimal DT, with SVM) in different data-sets
5 Conclusion and future work
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1 2 3 4
Acc
urac
y (%
)
DT Layer
all
ATLStreetcar
CCLRT
CrossTown
M1Rail
None Env. Eco. Soc/Eng.
Nik-Bakht et al. 2015 Sustweetability: Infrastructure Sustainability-related topic classification in social media
Proc. of the 32nd CIB W78 Conference 2015, 27th-29th 2015, Eindhoven, The Netherlands
References