Judul: Aplikasi Mobile untuk Cross Selling pada Customer Relationship Management di Agroindustri Ban
Abstrak: CRM activities are used to identify customer service needs in order to get more detail information. Good CRM could be implemented by applying it on a mobile-based application. This research was using Association Rules with Apriori algorithm. Steps of the research is pre-processing data to determine frequent item sets (data that often occur together) using apriori algorithm, analyzing association rules using support, confidence and improvement. Next step is determining marketing strategy which is next item deals (next sequential product) may be purchased by customer based on the rules that have been obtained. Last step is forecast analysis to determine the time whenever items and next sequential items will be purchased by the customers using Moving Average formula. These application were built in Java and implemented in Android platform version 2.2 or above. Default support and confidence values are 20% and 70% and can be manually adjusted. The advantages of the application are users can use it anywhere and anytime as long as they bring their mobile device with the cross selling application installed
Keyword: mobile, Android, next sequential product, customer relationship management, apriori algorithm, association rules

Judul: Customer Relationship Management Untuk Penetapan Strategi Penjualan Menggunakan Teknik Association Rules Mining
Abstrak: Business competition is the most important factor to develop a marketing system for a more effective and efficient marketing system in an industry. Customer Relationship Management (CRM) is a marketing Management system which can be a solution to face an increasingly competitive business. CRM includes cross-up selling, analysis of affinity products, and bundling of products that can be used as an alternative solution in marketing strategy system in an industry. Revenue of a company can be improved through cross selling where sale the additional product with the major products. Customer Relationships can improve customer satisfaction. This research discusses an analysis of sales transaction data from an agro-industrial company with tires products using Association Rules Mining technique. The result from this work shows the strategy of sales can be made using value of support, confidence and improvement. Determining of sales strategy makes to sell products which have complementary products with a value is higher than the base product and have confidence level> 50%. It shows that sell in up-selling (offering products that have higher prices of basic products) also can be done.
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Judul: Transisi Fasa Materi Hadronik ke Materi Kuark pada Inti Bintang Neutron.
Abstrak: Bintang neutron terdiri dari beberapa lapisan yang disusun oleh materi nuklir yang berbeda dengan kerapatan yang semakin tinggi ketika mendekati pusat bintang. Inti luar bintang neutron disusun oleh materi hadronik (nukleon, lepton, dan hyperon), sedangkan inti dalam bintang neutron disusun oleh kuark-kuark bebas (up, down, strange) yang saling berinteraksi. Tujuan penelitian ini adalah mempelajari bagaimana transisi dari inti luar ke inti dalam bintang neutron dengan menggunakan pendekatan RMF (Relativistic Mean Field) untuk materi hadronik dan CIDDM (Confined Isospin Density Dependent Mass) untuk materi kuark. Tekanan transisi diperoleh ketika potensial kimia barion materi hadronik dan materi kuark bernilai sama. Nilai tekanan transisi dengan parameter SU6-TM1 sekitar 87 MeV/fm3 dan diperoleh massa maksimum bintang neutron yaitu 1.92M dengan jari-jari sekitar 8.62 km. Nilai tekanan transisi dengan parameter SU6-G2 sekitar 53 MeV/fm3 dan massa maksimum bintang neutron yaitu 1.88M dengan jari-jari sekitar 8.16 km. Jenis transisi fasa adalah orde satu ditandai dengan diskontinuitas dalam kerapatan energi (adanya mixed phase). Parameter-parameter pada model nuklir yang digunakan menyebabkan perbedaan kekakuan persamaan keadaan (EOS) dari materi hadronik dan materi kuark sehingga nilai tekanan transisi dari fasa hadronik ke fasa kuark juga berbeda.
Keyword: bintang neutron, persamaan keadaan, transisi fasa