Judul: Hot Pepper (Capsicum Annuum. L) Online Agribussiness Consultasion System
Abstrak: The objective of the research was to develop an online consultation system for Chili Pepper (Capsicum annuum. L) agribusiness. The method included problem identification, the search knowledge sources, knowledge acquisition, knowledge representation and online consultation system development. Knowledge from the expert and other’s materials has been captured and represented using production rules for develop the system. The system was developed using extreme programming (XP) which included the stages of analysis, design and implementation. The results of this research is on line chili pepper agribusiness consultation system consisting of consultation modules like choosing the chili pepper variety, determination of fertilizer dosage, pest and deasese handly, cultivation knolwedge, farming bussiness analysis, climate conditions, governement policies, and chili pepper price information.The prototype of the system has been implemented using PHP and MySQL and running well on the internet. User can access the system using internet browser at www.cabe.ipb.ac.id.
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Judul: Online chili (Capsicum annuum. L) agribusiness consultation based on mobile system
Abstrak: A mobile based Chili online agribusiness consultation system is a consultation system which serves the information and knowledge for farmers and stake holder involved in chili Agribusiness so they can access all needed information in processing, marketing, and developing their agricultural products by using mobile device such as: hand phone, PDA that have GPRS (General Packet Radio Services). The purpose of the research is to make the farmers as direct independent users in getting the information, by using information technology, so the mobile device it can be communication media and knowledge based consultation devices. The developing of mobile based consultation system is for supporting the activities of Agribusiness that include market information, weather information, and government policy about the farm production result that will be observed to give solution for Agribusiness doers, especially for the chili farmers in consulting all information needed to develop the result of Agriculture. This system is built by using System Development Life Cycle (SDLC) approach. It is an adaptive extreme Programming which is one of Agile’s methodologies that consist of explorating, planning, iteration launching software. The source of knowledge is gotten from the experts, police makers, customer, research institution, University, and from books, research journals, bulletin, and online information system.
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Judul: Invers Drazin dari Matriks Toeplitz Singular
Abstrak: Matriks Toeplitz adalah matriks yang setiap unsur pada diagonal utama bernilai sama dan setiap unsur pada subdiagonal yang bersesuaian dengan diagonal utama juga bernilai sama. Matriks singular adalah matriks yang tidak bisa ditentukan inversnya. Akan tetapi, dapat diupayakan untuk ditentukan inversnya menggunakan invers matriks yang diperumum. Invers Drazin merupakan salah satu jenis invers matriks yang diperumum. Pada karya ilmiah ini ditentukan invers Drazin dari matriks Toeplitz singular dengan menggunakan metode Leverrier Faddeev. Kemudian, ditentukan invers Drazin dari matriks Toeplitz singular yang direpresentasikan sebagai penjumlahan segitiga bawah dan segitiga atas matriks Toeplitz berdasar pada teorema Gohberg dan Semencul., Toeplitz matrix is a matrix in with element on the main diagonal has the same value and on the subdiagonal corresponding to the main diagonal also has the same value. Singular matrix is a matrix that has no inverse. However, it can be attempted to determine the inverse using a generalized inverse matrix. Inverse Drazin is a type of generalized matrix inverse. This paper discussed the inverse Drazin for a singular Toeplitz matrix using the Leverrier Faddeev method. Then, the Drazin inverse of the singular Toeplitz matrix which is represented as a sum of products of lower and upper triangular Toeplitz matrix based on Gohberg and Semencul theorem.
Keyword: inverse Drazine, singular Toeplitz matrix