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511	Computer Science	ABS-144
IMPLEMENTATION OF LINEAR PROGRAMMING FOR OPTIMIZING ON PRODUCTIONS AND PROFITS USING SIMPLEX ALGORITHM Jumadi, Agung Wahana, Demas Putri Utami, Cepy Slamet UIN Sunan Gunung Djati Bandung Abstract Every factory based on production, always try to find the best way to get high profit from their capital that spent on production processes. The Konveksi Zom T-Shirt is a factory that produces jacket, shirt and t-shirt. This factory, use simplex method to predict composition and number of items to get maximum profits from available capital. Based on simplex method with parameters; Rp. 2.000.000 as capital, 3.000 minutes as time production, and 6 pcs as minimum productions. This method get result with composition and number of items; 15 pcs of jacket, 6 pcs of shirts, and 22 pcs of t-shirts. The profit of production uses this method can increase 3,5% of profits from conventional method. Finally, this method can be used to support on deciding composition and number of item in productions to get a maximum profit. Keywords: Linear Programming, Optimation, Simplex method PermaLink | Plain Format | Corresponding Author (Jumadi Jumadi)

512	Computer Science	ABS-145
An Idea Based On Sequential Pattern Mining and Deep Learning for Text Summarization Dian Saadillah Maylawati (1),(2),(*), Yogan Jaya Kumar (2), Fauziah Binti Kasmin (2), Muhammad Ali Ramdhani (1) (1) Department of Informatics, UIN Sunan Gunung Djati Bandung, Indonesia (2) Faculty of Information and Technology, Universiti Teknikal Malaysia Melaka, Malaysia Abstract One of the Natural Language Processing (NLP) studies that has been widely researched is automatic text summarization. There are a lot of techniques and methods that are proposed for text summarization. However, not much attention have been given on the coherence and cohesion in text. The aim of this study to present an idea to combine Sequential Pattern Mining (SPM) as text representation extracting algorithm and Deep Learning (DL) which is a powerful machine learning technique widely used recently in various data mining studies. This study uses descriptive research methodology that collects all of the facts and information which are related to SPM and DL for text summarization, where NLP as the body of knowledge, SPM and DL as the method, and text summarization as the domain problem that need to be solved. The findings of the study are presented as a logical framework diagram. The illustration of the logical framework can be implemented to further improve automatic text summarization results, in particular, to improve its coherence and cohesion. Keywords: Data Mining, Deep Learning, Logical Framework, Natural Language Processing, Sequential Pattern Mining, Text Summarization PermaLink | Plain Format | Corresponding Author (Dian Saadillah Maylawati)

513	Computer Science	ABS-658
Obtaining pareto front with NSGA-II in multi-attribute automated negotiation Aodah Diamah UNJ Abstract In multi-attribute automated negotiation, maximizing negotiation outcome can be regarded as a multi-objective optimization problem. The objectives are to maximize each negotiator gain expressed as their preferences. A negotiation outcome is evaluated based on the outcome distance to the Pareto front of all the possible negotiation solutions. Pareto front is the collection of solutions that can no longer be improved in one objective without compromising another objective. Therefore Pareto front plays an important role in examining negotiation outcomes. In cases where possible negotiation solutions are too large, it is computationally inefficient to find this front exhaustively by comparing all solutions. To this end, evolutionary algorithm has been used to approximate Pareto front. In this paper we aimed to obtain Pareto front using an evolutionary algorithm called non-dominated sorting genetic algorithm II (NSGA II). Results using two different negotiation settings show that Pareto front obtained with NSGA II are very close to the true Pareto front. Keywords: Pareto front, genetic algorithm, multi-attribute negotiation PermaLink | Plain Format | Corresponding Author (Aodah Diamah)

514	Computer Science	ABS-915
MOBILE DIGITAL EDUCATION (MDE) FOR INCREASING COMPETENCE OF STUDENTS BASED ON E-CHARACTERS MENTAL REVOLUTION (E-CMR) IN FACING OF DISRUPTION Firmanul Catur Wibowo (a*), Agus Setyo Budi (a), Suherman (b) Dina Rahmi Darman (b) aDepartment of Physics Education, Universitas Negeri Jakarta Jl. Pemuda 10, Rawamangaun, Jakarta 13220, Indonesia bDepartment of Physics Education, Universitas Sultan Ageng Tirtayasa Jl. CIwaru Raya No 25, Serang, Banten, Indonesia Abstract The purpose of this research is to develop a new web-based Mobile Digital Education design to measure character education using as an effort to face the era of disruption. E- Character Mental Revolution (E-CMR) Based on Mobile Digital Education (MDE) for Student Competency Improvement in Facing the Disruption. The research method used was a mixed method with the research subject being 80 students in Islamic boarding schools and 80 students in one of the state colleges in Banten, Indonesia of aged 19-22. The scores were analyzed using both qualitative and quantitative methods. The results obtained that MDE-based E-CMR can improve the cognitive competence of students in Islamic boarding schools with an N-gain score of 7.4 high categories and improve cognitive competence of students of colleges with an N-gain score of 7.6 high categories. It can be concluded that the MDE-based E-KRM is significant in increasing the competence of students and students in facing of the disruption. Keywords: Mobile Digital Education (MDE); Competence of Students; E-Characters Mental Revolution (E-CMR); Disruption. PermaLink | Plain Format | Corresponding Author (Agus Setyo Budi)

515	Computer Science	ABS-148
Searching the shortest route for the distribution of logistics for natural disasters using the Dijkstra Algorithm Kristoko Hartomo, Bambang Ismanto, Agus Nugraha, Sri Yulianto, Bayu Laksono Faculty of Information Technology, Satya Wacana Christian University, Jalan Diponegoro 52-60 Salatiga, Indonesia Abstract Natural disasters which often happens in several cities in central java demanding the government institutions to help the victims. The distribution itself has problems in determining the shortest route which should be chosen properly. Dijkstra algorithm is applied in choosing the shortest route. Dijkstra algorithm is a algorithm that can determine the shortest line from the boarding point to the arrival point by the smallest weight, to display into a map that used google maps api technology. Google maps api is free services provided by google that can be accessed by a browser. This research application logistics produce the distribution of natural disasters with applying dijkstra algorithm on finding shortest route. Keywords: disaster; distribution; shortest route; algorithm; dijkstra PermaLink | Plain Format | Corresponding Author (kristoko hartomo)

516	Computer Science	ABS-660
Modeling on Predicting Learners Achievement Ria Arafiyah, Zainal A. Hasibuan, Harry Budi Santoso Universitas Negeri Jakarta Universitas Indonesia Abstract Usually, learners achievement is known by the end of the course, this is very late because of improvements to enhance the quality of learning cannot be performed. Learners achievement prediction can be used to solve this problem. Various attempts were made to get a learners achievement models are closer to reality. This study aims to review research on the factors that affect learner’s achievement and design of modeling on predicting learners achievement. Those models are explored to agree on which one is the best. The reason of that among others to several components can improve success such as teacher pedagogic methods, learning media, learners tools etc that can be refined along learning process so that will improve the learners achievement. This study compares and explores several models to seeks the strength and weakness of the models. We expected to find which models perform better compare each other and inform what factors can improve learner achievement. Keywords: e-learning, modeling, predicting learners achievement PermaLink | Plain Format | Corresponding Author (Ria Arafiyah)

517	Computer Science	ABS-149
Social Media Analytics in A Knowledge Management System: A Systematic Literature Review Yana Aditia Gerhana (a), Titik Khawa Abdul Rahman (b), Muhammad Ali Ramdhani (a) a) Department of Informatics, UIN Sunan Gunung Djati Bandung b) School of Graduate Studies, Asia e University Malaysia Abstract In the digital era, social media has become an integral part of life. Social media is able to change the way people communicate, interact, collaborate and share knowledge. Today Social media is one of the main platforms for knowledge resources, both for individuals, groups and even organizations. Various techniques are used to utilize knowledge from social media, one of which is through social media data analytics. Current research trends are mostly discussing about the use of social media as a source of knowledge, including research in the field of knowledge management. The purpose of this paper is to provide a better understanding and detailed review of social media research in knowledge management. We carry out a systematic review approach to collect, analyze, and synthesize data on the accuracy and value of previous articles focused on this field of research, addressing various topics, and published in digital databases between 2013 and 2019. The Systematic Literature Review (SLR) method is used to collect and review studies by following the prescribed review procedures. We identified 78 scientific publications that present research on social media and knowledge management systems. Systematic reviews show that social media data analytics has been widely used in various fields, and has become an important part of knowledge management, but not many discuss how knowledge conversion models in the context of the knowledge management system. This discussion offers how to develop a knowledge management system in the behavior of social media. Keywords: Social media analytics, Knowledge Management System, SLR. PermaLink | Plain Format | Corresponding Author (Yana Aditia Gerhana)

518	Computer Science	ABS-410
The 3d simulation of Lorentz Force based on augmented reality technology Fauzi Bakri, Dadan Sumardani, Handjoko Permana, Dewi Muliyati Physics Education Department, Universitas Negeri Jakarta Abstract Visualization of abstract concepts will facilitate the understanding of physics concepts. The concept of abstract Lorentz styles can be simulated in three dimensions with augmented reality technology. A simulation is produced which displays the Lorentz style concept by making changes to magnetic field variables and flowing currents. The simulation has succeeded in providing a description of the relationship between the magnetic field and electric current which is directly proportional to the Lorentz force. Keywords: physics simulation, lorentz force, augmented reality PermaLink | Plain Format | Corresponding Author (Fauzi Bakri)

519	Computer Science	ABS-412
The Augmented reality application for simulating electromotive force concept Fauzi Bakri, Dadan Sumardani, Dewi Muliyati Physics Education Department, Universitas Negeri Jakarta Abstract Electromotive force can be simulated using unity. The process of voltage formation can be visualized by showing the movement of the coil in a magnetic field. The resulting three-dimensional visualization can make the electromotive force process abstract into reality with Augmented Reality technology. A simulation is produced which displays changes in the number of turns, magnetic fields and generator playback times. The simulation has succeeded in providing an interesting description of the ratio of variables to the magnitude of the electric force generated in the generator. Keywords: physics simulation, electromotive force, augmented reality PermaLink | Plain Format | Corresponding Author (Fauzi Bakri)

520	Computer Science	ABS-161
Success Model for Measuring Information System Implementation: Literature Review Beki Subaeki (a*), Aedah Abd Rahman (b), Syopiansyah Jaya Putra (c), Cecep Nurul Alam (d) a) Department of Informatic Engineering, Sunan Gunung Djati State Islamic University Bandung, Indonesia * bekisubaeki[at]uinsgd.ac.id b) Department of Information Communication Technologhy AEU, Malaysia aedah.abdrahman[at]aeu.edu.my c) Department of Information System, Syarif Hidayatullah State Islamic University Jakarta, Indonesia syopian[at]uinjkt.ac.id d) Department of Informatic Engineering, Sunan Gunung Djati State Islamic University Bandung, Indonesia cecep.uinsgd[at]ac.id Abstract Researchers have done research on information systems before; because, the breadth of studies about IS. [1], [2] is an example of a study on how to measure Information System Success by testing instrument factors. Some researchers can produce different judgments regarding the success of implementation of IS; this is because the first definition of success of each researcher is changed, the two perspectives on success assessment, the three variables used, the four implementations in different environments. Several models can be used as references to assess the success of IS, Delone and McLean are examples that are widely used as references, which use six variables in measuring IS implementation. From the model used, later there will be a gap in determining the model, and this becomes an opportunity for the development of the model as follows. The development of models to measure information system success can be done by adoption, adaptation, and combination. This is legitimately valid as long as the development of the model is accompanied by supporting theories. The purpose of literature review can provide an overview of related to the method of previous researchers. Then it can be used as a framework for solving problems. Keywords: success model, delone and mclean, is success, information system. PermaLink | Plain Format | Corresponding Author (beki subaeki)

521	Computer Science	ABS-419
Puzzle Game Solving with Breadth First Search Algorithm Robbi Rahim(a), Rohman Dijaya(b), Mochammad Tanzil Multazam(b), Achmad Daengs GS(c), Dadang Sudrajat(d) a. School of Computer and Communication Engineering, Universiti Malaysia Perlis, Arau, Malaysia b. Universitas Muhammadiyah Sidoarjo, Sidoarjo, indonesia c. Universitas 45 Surabaya, Indonesia d. STMIK IKMI Cirebon, Cirebon, Indonesia Abstract Todays games have been played by many people from young to old age. There are many types of games, one of which is a puzzle game. Puzzles, which are brain teasers that challenge the skills of their players, never seem to lose their popularity and are never consumed by age. Puzzle is one type of game that is enough to squeeze the brain to solve it. The solution that can be used to simplify problem solving is to apply a search algorithm that is used to check the initial state to the final state and provide the most optimal solution for completing the puzzle, the algorithm used to solve these problems using the Breadth First Search algorithm. The use of the Breadth First Search algorithm in solving puzzle games can make it easier for users to get the best solution in the form of completion steps and also the possibility of solving various conditions based on the puzzle conditions that you want to solve. Keywords: Game Puzzle, Puzzle, Solving, Breadth First Search PermaLink | Plain Format | Corresponding Author (Robbi Rahim)

522	Computer Science	ABS-166
Reality Construction on Framing the Online Islamic Media of Eid Ghadir Culture Agus Masrukhin (a*), Reiza D Dienaputra (b), Dadang Suganda (b), Titin Nurhayati mamun (b) a) Character Building Development Center, Information Systems Department, School of Information Systems, Bina Nusantara University, Jakarta, Indonesia 11480 *agus[at]binus.ac.id b) Faculty of Culture, Cultural Studies, Padjadjaran University Bandung, West Java, Indonesia Abstract When the Eid-ul-Ghadir celebration will come, often the media of Islamic organizations respond to each other according to their beliefs. not infrequently this is not separated from the ideological setting and vision of the mission of the Islamic organizations standing. so that the construction of the built reality also tends to follow the perspective of each of the online media organizations. The purpose of the article is to get a mapping of the construction of online media Islamic organizations related to the culture of Eid Ghaidr. The framing analysis that will be used is from Gamson and Modigliani, the research will reveal several media online Islamic organizations, including www.majlismujahidin.com www.ijabi.or.id/, www.annasindonesia.com, and icc-jakarta.com. the results of the study indicate that online media is used as a tool to influence the wider community on what they consider to be true in a vulgar and contradictory way. Keywords: Framing the Online Islamic Media, Eid ghadir cultture, respond PermaLink | Plain Format | Corresponding Author (Agus Masrukhin)

523	Computer Science	ABS-168
Prediction of National Examination Question using C4.5 Algorithm Nur Lukman (a*), Beki Subaeki (b), Hilman Nur Abdullah (c), Aldy Rialdy Atmadja (d), Mohamad Wildanuddin (e) a,c,d,e. Department of Informatics, UIN Sunan Gunung Djati Bandung, b. Department of Information, System Sangga Buana YPKP University Bandung Abstract The National Examination in 2018 is no longer the only determinant of student graduation from their school, however the score of the national examination in 2018 has decreased from average value of 55.51 to 52.96. One of the reasons is that students found difficulties to predict the questions that probably appeared on the exam sheet. This research aimed to help students predict the questions that probably appeared, so that the average value hopefully will be increased. The prediction of the questions that probably appeared on the exam had been done by processing data of the questions used for national examinations several years ago using C 4.5 Algorithm. C 4.5 Algorithm is a Data Mining technique that can classify predictive questions and it is able to form a prediction of questions on the exam. The result showed that the prediction of questions that probably appeared on exams by using Algorithm C 4.5 had good performance and its accuracy is 70 % Keywords: National Examination; Data Mining; C 4.5 Algorithm PermaLink | Plain Format | Corresponding Author (Nur Lukman)

524	Computer Science	ABS-427
Virtual Reality Markerless Woman Reproduction anatomy simulations to Improve the Psychological Experience of Medical Students Rohman dijaya, Fakhrul Ulum, Ghozali Rusyid Affandi Universitas Muhammadiyah Sidoarjo Abstract Academics in the field of health need to understand anatomy visually needed to know the details and functions of each component of the anatomy of the body. More specifically, the female reproductive system in the pelvis based on its anatomy consists of two parts: the external genitalia (which are on the outside), and the internal genitalia (which are on the pelvis). The female reproductive system in the field of education and knowledge of Virtual Reality technology is very beneficial for midwifery and science students to support knowledge. Because with the existence of a technology Virtual Reality (VR) organs contained in the body will look more clearly. VR-based simulation methods have several important benefits when compared with the method of using anatomy props. Markerless Virtual Reality every object or whole room can be an object. the object that will be raised is the reproductive and female pelvic system objects and each of each marker displays an animated 3D object in accordance with the database that has been stored and 3D objects can be manipulated by moving, rotating and enlarging objects. The process of interaction between the model and the user, especially health academics, increases the psychological deprivation of users in terms of understanding womens reproductive anatomy. Keywords: Anatomy,Markerless, Virtual Reality, Woman Reproduction PermaLink | Plain Format | Corresponding Author (rohman dijaya)

525	Computer Science	ABS-940
The 3-D Augmented Reality Animation on Radioactive Concept Handjoko Permana Hapsari Prada Kencana, Fauzi Bakri, Dewi Muliyati a) Department of Physics Education, Faculty of Mathematics and Sciences, Universitas Negeri Jakarta, Jakarta 13220, Indonesia *handjoko[at]unj.ac.id Abstract Augmented Reality is a technology that can provide positive perceptions of lessons, improve learning experiences, and improve learning achievement. It visualizes the phenomenon obtained by the results of laboratory research. This research was to design and develop the marker of radioactive concepts. The stages consist of determine the instructional needs and goals, develop the markers, and evaluate from peers. We generate two markers for this concept: radioactive light penetration and radioactive light beam by electric field. The markers were developed based upon the identification of instructional needs and expected to assist in the achievement of the instructional objectives. The peer assessment results indicate that the marker design on radioactive concepts supports the physics learning through technology-rich environment. Keywords: Augmented Reality, radioactive concepts, 3D Animation PermaLink | Plain Format | Corresponding Author (Handjoko Permana)

526	Computer Science	ABS-173
VISUALIZATION VECTOR SPACE MODEL AT SEARCH FOR IMMIGRATION NEWS IN THE EAST NUSA TENGGARA REGION (CASE STUDY: EAST NUSA TENGGARA) Natalia Magdalena R. Mamulak (a), Alfry A. J. SinlaE (b), Juventinho Jose M. De Araujo (c) Universitas Katolik Widya Mandira Abstract The Immigration Office is one of the public service offices that has many activities carried out. These activities are often covered and published in the form of news articles. The news that has been published is very much making it difficult to find the desired news. One way to search is by ranking. Ranking is one branch of knowledge from information retrieval. Information retrieval is to find material (usually documents) from a collection of unstructured data (usually text) to meet the information needs of a large collection. One method of searching documents is to use Vector Space Model (VSM). VSM uses a concept found in linear algebra, namely vector space. Based on the concept used, document modeling was developed to search the required documents. Column vector representation is used in converting input documents. Another concept used is to know the closeness between two vectors, namely by calculating the amount of angle formed between two vectors and then sorted from data that has the smallest to the largest angles that indicate the order of ranking data from the most relevant to not relevant. One of the weighting algorithms is the tf-idf algorithm which is influenced by the frequency of occurrence of words in each online document and the frequency of online documents that have the word. In this study explained the visualization of VSM in searching documents on news about immigration in the East Nusa Tenggara region. Keywords: Imigration, Information Retrieval, TF-IDF, Vector Space Model, Visualization PermaLink | Plain Format | Corresponding Author (Natalia Magdalena R Mamulak)

527	Computer Science	ABS-174
Geographic Information System For Mapping of Tourist City Of Dili In Web Based Natalia Magdalena R. Mamulak (a), Emiliana Meolbatak (b), Sinhorinha N. Da Costa (c) Universitas Katolik Widya Mandira Abstract Dili is the capital city of Republic Democratic of Timor Leste country with a promising tourism potential because Dili has beautiful beaches and interesting cultural diversity. But until now these tourist objects are not widely known. The problem related to there is no media such as website that can promote tourism in Dili more detail and easily accessed by local and international tourists. Therefore it is necessary to create a geographic information system that becomes a media campaign for tourism of Dili City, especially about these attractions to be known by the public. The method used in solving the above problems is Waterfall which has the following phases: preparation phase, analysis and design phases, implementation phase, testing phase, deploy and maintenance phase. The programming tools in developing this geographic information system are PHP language and MySQL as the database. This web-based geographic information system will contain the data related to location of tourism and public facilities such as hotels, restaurants, shopping center, distance between locations and road conditions to make it easier for tourists during their stay in Dili. The system also provides updated information that is easily accessible to the public. Keywords: geographic information system, Dili, tourism PermaLink | Plain Format | Corresponding Author (Natalia Magdalena R Mamulak)

528	Computer Science	ABS-431
How mobile application can increase moslem worship activities Eri Satria, Dewi Tresnawati Department of Informatics Sekolah Tinggi Teknologi Garut Jl. Mayor Syamsu no 1 Garut, Indonesia Abstract Independent learning about moslem worship activities can be done using technology assistance. The purpose of this research is to design android based application about procedures about circumcision prayer for worship activities doing by moslem. Application development use multimedia development life cycle method proposed by Imam Syafii. The result of this research is design and application about circumcision prayer, it show information about circumcision prayer activity with multimedia features which help user to master the material learned. We hope this application can be an alternative learning tools for moslem to learn procedures of praying. Keywords: moslem, multimedia, syafii, PermaLink | Plain Format | Corresponding Author (Eri Satria)

529	Computer Science	ABS-943
The 3-D Animation of Radiation Concept using Augmented Reality Technology Fauzi Bakri, Handjoko Permana, Hapsari Prada Kencana, Dewi Muliyati a) Department of Physics Education, Faculty of Mathematics and Sciences, Universitas Negeri Jakarta, Jakarta 13220, Indonesia *fauzi-bakri[at]unj.ac.id Abstract Radiation concept in Nuclear subject in Physics Learning include some devices, such as: Geiger Muller counter, Wilson cloud chamber, scintillation detector. The aim of this research is to visualizes the radiation concept from that devices using augmented reality technology. The result show the 3-D animation can: describe the mechanism of the Geiger muller counter detector to detect radiation; describe the mechanism of Wilsons fog chamber detects radiation; and describe the mechanism of the scintillation detector tool to detect radiation. All the markers developed get a decent value to be used as a medium for learning physics about radiation concept. Keywords: Augmented Reality technology, radiotion concepts, 3D Animation PermaLink | Plain Format | Corresponding Author (Fauzi Bakri)

530	Computer Science	ABS-694
Mapping-Project with Local Potential iMindmap Della Rulita Nurfaizana (1), Endah Andayani (2) 1) Economic Education, Postgraduate, Universitas Negeri Malang 2) Master of Social Science Education Study Program Universitas Kanjuruhan Malang Abstract The results of previous studies indicate that there are several learning models that have the potential to improve students competencies in reviewing Produk Kreatif dan Kewirausahaan (PKK). Through iMindmap media presented by teachers, vocational students have the opportunity to develop project scenarios based on local potential using a map business. This experimental study aims to determine the effectiveness of the mapping-project learning model by using iMindmap media based on local potential to improve the competency of student entrepreneurship. The mapping-project instrument was developed by researchers and validated by experts. The results showed that the project-mapping learning model using iMindmap media based on local potential could improve student competence in analyzing business opportunities using SWOT analysis, and designing prototypes of superior products based on local potential using a business map. This study recommends that with the mapping-project model, students ability to explore PKK material becomes more profound, meaningful, and student-centered. Future research is needed to analyze the contribution of mapping projects by using iMindmap media on exact learning. Keywords: Mapping-project, iMindmap, Local Potential PermaLink | Plain Format | Corresponding Author (Della Rulita Nurfaizana)

531	Computer Science	ABS-183
The Evaluation of EGovernment in Local Government of Indonesia Gugun Geusan Akbar (a*), Dede Kurniadi (b), Ikeu Kania (a), Pupung Pundenswari (a) a)Department of Public Administration, Universitas Garut, Jalan Raya Samarang 52A, Garut 44151, Indonesia *gugun.ga[at]fisip.uniga.ac.id b) Department of Informatics, Sekolah Tinggi Teknologi Garut, Jalan. Mayor Samsu No. 1 Garut 44151, Indonesia Abstract Currently, the industrial revolution 4.0 enforce everything to change, including the way government gives service to public. This research aims to evaluate the quality of local government website in order to give public service in Indonesia. The research method used is empirical studies with formulation model design using eGovqual attributes. It is used in order to analysed the quality of public service website of 27 Local Government in West Java Province as the highest population in Indonesia. The result of this research showed that most of the local government website is still weak in its functional, trust and ease of use. The assessment results showed detailed structural descriptions of what needs to be improved on the website to improve its usefulness. The suggestion is the expectation of this research that can help effective website development in order to improve public service quality. Keywords: EGovernment, Local Government, EGovqual PermaLink | Plain Format | Corresponding Author (Gugun Geusan Akbar)

532	Computer Science	ABS-441
MODEL OF KNOWLEDGE PORTAL SYSTEM FOR HIGHER EDUCATION: LITERATURE REVIEW Undang Syaripudin (a*), Titik Khawa Abdul Rahman (b) , Muhammad Ali Ramdhani (a) a) UIN Sunan Gunung Djati Bandung, Indonesia b) Department of Information Communication Technology AeU, Malaysia Abstract This study presents a discussion of the tridharma-based university knowledge portal model (education, research, and community service). This study aims to ensure that lecturers activities are in accordance with the tridharma of higher education and national standards of higher education. The analytical method used is the literature review, with the object of research being hypothetical colleges in the form of universities. Based on the results of the identification of university needs, the knowledge portal model is required to have the ability to develop lecturer competencies in accordance with the tridharma of higher education. Knowledge portal is designed to have the ability to manage knowledge well, by providing facilities: information gathering, information categorization, information distribution, information collaboration, information retrieval, and knowledge sharing. Keywords: knowledge portal, knowledge sharing, information retrieval PermaLink | Plain Format | Corresponding Author (Undang Syaripudin)

533	Computer Science	ABS-191
Distributed Architecture for Autograding System Rickard Elsen, Dede Kurniadi Sekolah Tinggi Teknologi Garut Abstract Autograder is used to measure source code quality based on blackbox testing. It will compare source code execution result with existing test cases and generate grade based on comparation result. Autograder can be used in college to help lecturer to test students skill in programming. It can be applied in laboratory or online course so students can use it to test their skill. Most of autograder use centralized architecture which it just execute and grade only one request at a time so if students submit their code to test, it will create a long queue and can risk highly to cause timeout because of long queue and unexecuted request. In this paper, we propose to apply distributed architecture for autograder to reduce queue and lower the risk for unexecuted request that can cause error in grading. Keywords: autograder, source code, distributed architecture PermaLink | Plain Format | Corresponding Author (Rickard Elsen)

534	Computer Science	ABS-447
Adaption of Cloud Computing Types of Software as a Service Iman Nasrulloh (a*), Dian Rahadian (a), Siti Husnul Bariah (a), Yuniar Purwanti (a), Kuntum An Nisa Imania (a) a) Institut Pendidikan Indonesia Garut, Jalan Pahlawan No.32 Garut *imannasrulloh[at]gmail.com *imannasrulloh[at]institutpendidikan.ac.id Abstract Cloud computing is an information technology service that can be used or accessed by users to manage data and applications through the internet network. Software as a service is one type of cloud computing service in the form of software. The purpose of this study is to analyze the use and students acceptance on cloud computing types of Software as a service including the most used applications, factors that influence usage, benefits obtained, andto find out their use related to learning and learning activities in school. The researcher used a mixed method research design approach to obtain qualitative and quantitative data. Data collection by conducting interviews and giving questionnaires to 328 students from 10 high schools in Garut who were randomly selected. The findings show that the Google application is widely used by students. The flexibility factor is the reason for using cloud computing technology as a type of software as a service. Broad access is a benefit obtained by students in using cloud computing type of software as a service. It needs to be given an understanding to students about the use of cloud computing type of software as a service for learning activities in education at school. Keywords: Cloud Computing, Software as a Service, Students PermaLink | Plain Format | Corresponding Author (Iman Nasrulloh)

535	Computer Science	ABS-192
Disaster Management System on Mobile Environment Rickard Elsen, Ridwan Setiawan Sekolah Tinggi Teknologi Garut Abstract Disaster Management System (DIMAS) is used to reduce risk caused by disaster by manage information about affected area by disaster. It also manage aids, volunteers, and refugees data to measure effect of disaster accurately. Most of DIMAS controlled by government and operated by verified volunteers to keep data integrity so it can be accounted for future purpose. In this paper, we propose to apply DIMAS to mobile environment because of advantages that can be utilized to simplify the usage of DIMAS like GPS integration, mobility aspect, real time data capturing, etc. At the result, we hope it can improve accuracy and speed of collecting data in affected area. Keywords: disaster management system, mobile environment PermaLink | Plain Format | Corresponding Author (Rickard Elsen)

536	Computer Science	ABS-451
DEVELOPMENT OF ONLINE LEARNING DESIGN D. Rahadian (a*), S.H. Bariyah (a), I. Nasrullah (a), Y. Purwanti (a), K. Imania(a) a) Institut Pendidikan Indonesia Garut, Jalan Pahlawan No.32 Sukagalih Tarogong Kidul, Garut 44151 *dianrahadian[at]institutpendidikan.ac.id *dianrahadianpti[at]gmail.com Abstract This study aims to develop an online learning design to increase the active role of students in e-learning, based on the initial data obtained from the blended learning process in information technology introductory courses in the first semester of the 2018-2019 academic year at the Indonesian Education Institute. Active users in online classes for one semester are 94% with a variety of activities in it, starting from the role of students using teaching materials provided by lecturers, utilizing discussion forums to work on understanding questions or just discussions between lecturers and students, or students with other students. Research begins with conducting a needs analysis and design to define student needs in online learning based on learning outcomes in the course. The results of the analysis are in the form of design content that will be further designed according to the research and development method. The finished learning design is then validated by several experts, namely software development expert, and learning experts so as to produce a blended learning model. The results of the study show that online learning design needs are very high. Keywords: Online Learning Design PermaLink | Plain Format | Corresponding Author (Dian Rahadian)

537	Computer Science	ABS-452
Enhancement Three-Pass Protocol Security with Combination Caesar Cipher and Vigenere Cipher Robbi Rahim(a)*, Mochammad Alfan Rosid(b), Arif Senja Fitrani(b), Achmad Daengs GS(c), Ni Luh Wiwik Sri Rahayu Ginantra(d) a. School of Computer and Communication Engineering, Universiti Malaysia Perlis, Arau, Malaysia b. Universitas Muhammadiyah Sidoarjo, Sidoarjo, Indonesia c. Universitas 45 Surabaya, Indonesia d. STMIK STIKOM Indonesia, Bali, Indonesia Abstract Key-based security is still the most widely used form of security today with a key distribution process between senders and receivers that is commonly perform and also it is a classic problem in cryptography where key must be share to other parties (sender or receiver) and its maybe known when third parties do sniffing process or man in the middle attack. Three-Pass Protocol is one solution that can be used to overcome the problem of key distribution, because the sender and receiver can encrypt and decrypt without need to exchange keys. Security in Three-Pass Protocol uses XOR logic so that the resulting ciphertext will be very easy to decrypt by those who are not responsible, to improve data security in the Three-Pass Protocol process which is use Caesar Cipher and Vigenere Cipher algorithms in the encryption and decryption process in the Pass Protocol scheme, and ciphertext encryption results are quite difficult to read and require a long time to decrypt them. Keywords: Distribution Key, Security, Three-Pass Protocol, XOR Encryption PermaLink | Plain Format | Corresponding Author (Robbi Rahim)

538	Computer Science	ABS-711
Local Wisdom - Based E-Encyclopedia As A Science Learning Medium In Elementary Schools Farida Nur Kumala, Dwi Agus Setiawan Universitas Kanjuruhan Malang Abstract Most of the encyclopedias that are available are in the form of printed encyclopedia. However, the number of online encyclopedias is still limited and generally, they are not too interesting to be read by students since they tend to load information about unfamiliar animals for students. This paper seeks to describe the use of local wisdom based electronic encyclopedia as a learning media in the Science subject in Elementary school. The finding showed that the use of online encyclopedia triggers students to be more motivated and enthusiastic to learn during the learning process. The familiar contents and concepts given made a more meaningful learning process for students. Keywords: Local Wisdom, E-Encyclopedia, Science Learning PermaLink | Plain Format | Corresponding Author (Farida Nur Kumala)

539	Computer Science	ABS-712
Index Group Documents Optimization Based on Automatic Clustering using Kmeans Genetic Algorithm: Case Study UMSIDA E-Prints Repository Rohman dijaya, Nindia Maftul Shintia Devi, Mohammad Alfan Rosyid Universitas Muhammadiyah Sidoarjo Abstract UMSIDA Eprints is a repository of student and lecturer publication documents at the Muhammadiyah Sidoarjo University (UMSIDA). The collection of documents is still random and the search can only detect from the title keywords. The increasing culture of writing and research makes it possible for more and more documents as literature. Documents in Eprints are grouped by subject provided by the repository manager and grouped by the admin who uploaded the document. Automatic document grouping can be done by grouping documents based on the contents of the document using the Information Retrieval (IR) approach. The retrieval process is carried out by document processing with tokenization to obtain data tokens, the data tokens are processed through a stemming process to obtain the stem value of each word. The stem value is processed using the indexing process and word stem to get sentence indexes through the weighting process. The index results stored in the database become document variables that are the features or characteristics of each document. The index of all documents is grouped through the Kmeans Genetic Algorithm (GA-Kmeans) by determining the similarity of the document or the proximity of the centroid with the index of each data. The cluster data will be in accordance with the groups grouped from the closest distance to the cluster. Keywords: Automatic Optimation,Eprints,Genetic Algorithm, Index, Information Retreival PermaLink | Plain Format | Corresponding Author (rohman dijaya)

540	Computer Science	ABS-204
Electronic Catalog for Mapping Mosque Potencies Eri Satria, Rinda Cahyana, Nurunnisa Aulia Department of Informatics Sekolah Tinggi Teknologi Garut Jalan Mayor Syamsu no 1 Garut, Indonesia Abstract The existence and purpose of mosque is important in Islam. In mosque, there is some activities related to religius and social life. Although mosque identically used as center of religion activity, but there is some potencies can be utilized from mosque such as, economy, education, sosial, etc. The main idea of this research is to design an electronic catalog so people can map the information about mosque potencies. In this paper, we use rational Unified Process (RUP) for research staging and Unified Modelling Language (UML) as modeling tool. Result of this research is an electronic catalog application which can provide the mapping of information about mosque potencies and activities related to mosque accurately. We hope with this electronic calatog, people can be more aware to potencies, function, and impact of mosque to social life around it. Keywords: Catalog, mosque, moslem, Islam PermaLink | Plain Format | Corresponding Author (Eri Satria)

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