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An Extension of Dematel-Based Method for Coastal Erosion<br />

Using Interval Type-2 Fuzzy Sets<br />

Lim Su Chin<br />

Supervisor: Dr. Ahmad Termimi Bin Ab Ghani<br />

Bachelor of Science (Computational Mathematics)<br />

School of Informatics and Applied Mathematics<br />

Nowadays, coastal erosion is a major problem that everyone concern about it. In most<br />

cases, coastal erosion occurs due to natural effects but there are cases of erosion due to<br />

human-induced factors. The environmental changes such as sea level rise, tidal wave,<br />

and climate change may affect the coastal zone. In addition, the rapid development<br />

activities also imply a pressure on the natural environment resulting in the case of coastal<br />

erosion. This study intends to investigate the risk factors related to coastal erosion<br />

problems using a decision model based on interval type-2 fuzzy sets (IT2-FS) and<br />

Decision-making Trial and Evaluation Laboratory (DEMATEL) method. This method is<br />

proposed to test the four identical of criteria and its sub-criteria that contributes to the<br />

coastal erosion. The result indicates that the most influential factors is wave condition,<br />

followed by climate change, relative sea level rise, and shoreline changes/ evolution.<br />

940 | UMT UNDERGRADUATE RESEARCH DAY 2018

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