Djoni Haryadi Setiabudi

Data mining market basket analysis' using hybrid-dimension association rules, case study in Minimarket X

Market-Basket Analysis is a process to analyze the habits of buyers to find the relationship between different items in their market basket. The discovery of these relationships can help the merchant to develop a sales strategy by considering the items frequently purchased together by customers. In this research, the data mining with market basket analysis method is implemented, where it can analyze the buying habit of the customers. The testing is conducted in Minimarket X. Searching for frequent itemsets performed by Apriori algorithm to get the items that often appear in the database and the pair of items in one transaction. Pair of items that exceed the minimum support will be included into the frequent itemsets are selected. Frequent itemsets that exceed the minimum support will generate association rules after decoding. One frequent itemsets can generate association rules and find the confidence, which is uses a hybrid-dimension association rules. The test results show, the application can generate the information what kind of products are frequently bought in the same time by the customers according to Hybrid-dimension Association Rules criteria. Results from the mining process show a correlation between the data (association rules) including the support and confidence that can be analyzed. This information will give additional consideration for owners of Minimarket X to make the further decision.

Mobile learning application based on hybrid mobile application technology running on Android smartphone and Blackberry

Nowadays some universities have been using e-learning in the teaching-learning process. Generally e-learning available in the form of web based application, but does not exist in the form of mobile application yet. Problem that arise when using a mobile device is the screen size is too small, so that the user need to zoom and scroll to get comfortable viewing. Another problem is the user using varying operating system such as android, blackberry and iOS. To overcome those problems, this research is conducted to assist in the teaching-learning process by developing a model of mobile e-learning application that can run on cross-platform, which is on Android and BlackBerry platform. The application is created using PhoneGap that uses HTML5, CSS3, and JavaScript based on Hybrid Mobile Application. The system on the application follows Lentera e-learning system based on Moodle. Lentera is a web based e-learning system used in Petra Charistian University. On the server side, it takes a modified Moodles source code based on PHP so the application can be run in accordance with the system. The application has a different interface from the website version. The interface is designed to be suitable on smartphone which is has limited screen space. The result shows that the application can run on cross-platform, those are Blackberry and Android smartphone. The application also runs online together with the Lentera website. The basic features of Lentera have been successfully implemented on this application. Assessment of the application as a whole is more than 50% of respondents answered very good.

Android and iOS Hybrid Applications for Surabaya Public Transport Information

This study is conducted to address the lack of route information of public transportation in Surabaya by creating an online guide that can be accessed by passengers to get complete information on maps and travel routes for public transportation. This guide is made ​​interactive, simple, accessible and appropriate for transportation that is adapted to the conditions in the city of Surabaya. This research will develop an Android and iOS applications that can be used on smartphones and tablets using Android and iOS operating systems. Maps and routes are obtained from the Department of Transportation of Surabaya. Maps and route are developed using OpenStreetMap, Ajax, Javascript, XML, OpenLayer, PostgreSQL, and PostGIS. The hybrid application is compiled using PhoneGap. Passengers simply point to the destination of their journey, such as the name of the street, landmarks and public places. The system will automatically choose the alternative line of bemo they should choose, including the routes to reach the destination. The information includes the connecting line of a public minibus (called bemo in Indonesian) if the route needs to be connected by more than one bemo line. The information also includes the fare to be paid. From the test results, both the Android and iOS applications can adapt to a wide range of smartphones with a variety of screen sizes, from 3.5 to 5 in. smartphones and 7 in. tablets.

Securing Client-Server Application Design for Information System Inventory

This paper will discuss how to design a client server application for the building supply store located at 3 different locations along with the networking system design as well as how to secure it. Santoso Building Stores is a company engaged in the sale of construction materials. The current system for the inventory in the store is still done manually, making frequent errors in the data and the resulting delay in presenting information. Based on these problems, the company needed a system to record the inventory through purchase and sale transactions, so that the report can be presented quickly. In order to meet these needs, it developed an application to support the activities of the company so that all inventory record scan be performed quickly and report scan also be presented in real time. Applications are developed using Microsoft Visual Basic 2010 and SQL Server 2008 R2 includes SQL Encryption feature. The experiments results showed that the application was able to meet the needs of the company, inventory system that is accurate, fast and safe.

Development of autonomous demand response system for electric load management

This paper presents a proposed framework for developing a device in which allowing users to autonomously manage electricity load demand through monitoring, controlling and scheduling mechanism. The proposed framework utilizes the principle of Demand Side Management in order to save energy by monitoring and re-arranging appliances load curve, of which resulted by either individual load or the whole loads in their premises. The system is comprised of the load metering, minimum system as controller, and wireless communication. The accessibility of the system is improved by the inclusion of the Internet of Things platform.

The Implementation of Customer Relationship Management and Its Impact on Customer Satisfaction, Case Study on General Trading and Contractor Company

This study concern about the implementation of Customer Relationship Management (CRM) and the impact on customers satisfaction of General Trading and Contractor company from various industrial sector. The target of the company is increasing the profit by handling personally every customer or future customer. However, the fact showed that the manager found difficulties in controlling the performance and progress of his sales. This condition makes the service schedule which is promised to the customer sometimes cannot be fulfilled on time. This problem happens because there is no reminder system to the manager about the service schedule. The implementation of Customer Relationship Management in this company includes: make the assignment for sales in handling the customer or future customer, reminder, online questionnaire, complaint, added wish list, and system to show notification. The result of this study shows that the customer satisfaction can be increased as much as 92%, with the implementation of the following features: system can create marketing campaign, customers can make a complaint online, employee can create reminders to remind the schedule of services and other purposes.

Adding a Transparent Object on Image

Nowadays, image manipulation, which is related to matting and compositing process, is commonly used. Processed object may vary, however matters may arise when the object is transparent. Not many research has been conducted about the issue due to the difficulties in extracting transparency value and object refraction. In this research an application to execute matting process of a transparent object and compositing it into a new image is developed.

Mobile Phone as a Personal Digital Shopping Assistant to Help Customers Shop in Shopping Center

Personal Digital Shopping Assistant (PDSA) is a software application used for mobile phone and Personal Digital Assistant (PDA). This application is developed to solve the difficulties of the customers while shopping. i.e. difficulties to find the products and the location of a particular shop, comparing the price and brand, and to get the latest info and promotions. There were two modules designed. Firstly, the module for main PDSA application, developed using Adobe Flash. Secondly, the module for administrator, to be used for entering data in the web administrator at the shopping center server, developed using PHP programming language and MySQL database for storing the data. The features available are mapping feature to find shop locations with pictures of the map, price and brand comparison feature, searching feature to find the specific store or good suitable for the customers, information and promotion feature to announce the latest news. At the administration side, there is a report and analysis about customer behavior and habits while shopping. Testing for the application created has been done using Personal Digital Assistant HP iPAQ h1940 connected to the mobile phone equipped with Bluetooth connection and dial up modem to be connected with shopping center server. Based on a questionnaire that has been distributed to some customers, it can be concluded that the PDSA is suitable for use by all ages from teenagers to adults, especially for young executives both men and women and is an user friendly application with - average rating of 85% and to assist and streamline the activities of shopping, with - average rating 100%

PERBANDINGAN ALGORITMA HIDDEN SPACE REMOVAL: Z-UFFER DAN SCANLINE DILIHAT DARI PENGGUNAAN MEMORI DAN KECEPATAN

Three main processes in Natural Language Processing are syntax analysis or parsing, semantic interpretation and contextual interpretation. This paper discuss about the first and the second of these processes. Parsing is the recognition of the sentence structure based on a grammar and a lexicon. Parsing can be done in either top-down or bottom-up methods, each has its own advantages and disadvantages. Top-down parsers can not handle grammar with left-recursion, where bottomup parsers can not handle grammar with empty production. The best parsers combine these two

ANALISIS AKURASI PERPOTONGAN GARIS DENGAN LINGKARAN DAN LINGKARAN DENGAN LINGKARAN

This paper presents a project of Web-based Distance Learning support system. The system has been built based on the Internet and World Wide Web facility. The system could be accessed with a web browser which is directed to a certain web server address so that students can do learning process just like in the real situation, such as student admissions, taking course materials, syllabus, assignments, students grades, class discussions through web, and doing online quizzes. Students could also join collaboration works by giving opinions, feedback and student produced paper/web which can be shared to the entire learning community. Therefore, it will build a collaborative learning environment where lectures together with students make constructive knowledge databases for entire learning community. This system has been developed based on Active Server Pages (ASP) technology from Microsoft which is embedded in a web server. Web pages reside in a web server which is connected to an SQL Database Server. Database server is used to store structured data such as lectures/students personal information, course lists, syllabus and its descriptions, announcement texts from lecturers, commentaries for discussion forum, student’s study evaluations, scores for each assignment, quizzes for each course, assignments text from lectures, assignments which are collected by students and students contribution/materials. This system has been maintained by an administrator for maintaining and developing web pages using HTML. The administrator also does ASP scripts programming to convert web pages into active server pages. Lectures and students could contribute some course materials and share their ideas through their web browser. This web-based collaborative learning system gives the students more active role in the information gathering and learning process, making the distance students feel part of a learning community, therefore increasing motivation, comprehension and interaction with other students.Nowadays, most of the information is still in printed format. To reproduce it in the electronic form, we need an efficient way to save the scanned document. For this purpose, AT & T Labs has been developing a new technology called DjVu. In this paper, we try to compare DjVu and JPG format. The goal is to decide whether DjVu is better or not. To achieve the goal, we try to scan the document and save it in DjVu and JPG format, make comparison between these two based on file size and image quality. Comparison is done for three types of document, such as b/w photo, document with text, and document in colour. The conclusion is, DjVu format is better than JPG in file size and quite good in image quality. So, DjVu have a chance to become a new standart.