Strong demand and strong price of raw foodstuffs like beef was commonly used in conventional markets by beef dealers to commit fraud in order to gain larger income. The fraud has been in the form of combining beef and pork. In Indonesia, this has been a issue of food health in recent years. Via scent, some food safety concerns can be expected. By using electronic nose that is equipped with electrochemical and air sensors such as temperature sensors, strain, and humidity to find the pure beef or mixed beef. According to its selectivity, the sensor can detect gas to make small icurrents that are the result of chemical sensor and gas interactions with oxygen .In this study, the classification method k-NN, SVM, Naïve Bayes, and Random Forest was used in 5 different meat variations with a ratio of 0%, 10%, 50%, 90% and 100% with temperatures of -22°C, Room Temp., And 55 ° C. The results showed the effect of temperature on increasing the accuracy, which is at a temperature of -22 ° C. The lower the temperature, the more stable the value obtained by electronic nose. At a temperature of -22 ° C, the method that produces the highest accuracy is the Random Forest method.
Surabaya is a city that has the potential for economic and tourism development and growth. One of the potentials being developed by the Surabaya City Government is the potential for Culinary Tourism Centers to introduce various culinary delights in the city of Surabaya. This was realized by the Surabaya City Government by establishing the Wonorejo Culinary Tourism Center (SWK) as a typical Surabaya culinary venue that has a variety of legendary culinary delights. The design of this website-based information media uses PHP 7 programming techniques and MySQL database. With the Model View Controller method and the support of the CodeIgniter framework, it aims to provide information to the public/tourists from Surabaya and outside Surabaya about various Surabaya culinary delights in the existing Culinary Tourism Centers. in Wonorejo. This study uses research methods through literature study, observation, interviews, and questionnaires. After going through internal and external testing, a value of 80.76 was obtained, which can be concluded that the information media can be used to facilitate tourists from Surabaya and outside Surabaya in obtaining information about various legendary culinary delights and other culinary delights in SWK Wonorejo.
Perkembangan ilmu pengetahuan dan teknologi informasi saat ini memberikan pengaruh yang kuat terhadap perkembangan hampir di semua bidang kehidupan. Minimnya informasi lowongan kerja juga menjadi salah satu masalah yang membuat pencari kerja dan pencari kerja sulit untuk bertemu, sehingga internet bisa menjadi salah satu alternatif pencarian kerja, oleh karena itu dibuatlah JobHub. Metode yang digunakan pada penelitian ini yakni prototyping. Metode prototyping merupakan salah satu metode yang menggunakan pendekatan secara bertahap, sehingga dapat dengan mudah dievaluasi oleh user maupun pemangku kepentingan. Pada dunia digital saat ini sangat mudah membuat prototype
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