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Vocational education is one of education that is unique in the orientation of creating work-ready people with the appropriate knowledge and skills.  World changes in the era of the industrial revolution 4.0, provide new direction in enhancing human resource in the form of new challenges.  This research was conducted to see the challenges and opportunities that exist in the industrial era 4.0 related to the development of human resource in vocational education in Indonesia.  The study in this research used the literature method.  Literature study is used to see the literature related to the subject.  From this topic, conclusion were drawn, so that it can be seen some of the challenges that exist in Industry 4.0.  but behind that, there are also opportunities that vocational education has that can be maximally utilized in building quality human resource.

Data mining is the process of extracting non-trivial patterns from large amount of data. In recent decades we found the most diversity in every area and region of ecology and climate. As days go by, we are getting towards the destruction of our water system and for this reason in the upcoming years we might face the problem of lacking water. Not only the population and its disruption could cause this problem but also the climate change could hamper our water system, flow of water level and mineral contents. We have used previous 5 years data to calculate where and when the water level changes. We also try to identify the reasons for that. We use spatio-temporal data mining technique on the era of hydrology. We have used the BCA -Bangladesh Country Almanac -data set to analyze the spatial and temporal variability characteristics of temperature.