Taufik Hidayat
@unwir.ac.id
Department of Computer Engineering
Universitas Wiralodra
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Indra Surya Permana, Andinna Ananda Yusuff, Fardhoni Fardhoni, Tengku Muhammad Elzafir Habsjah, and Taufik Hidayat
MECS Publisher
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Taufik Hidayat, Rahutomo Mahardiko, and Ali Miftakhu Rosyad
The London Academy of Science and Business Limited
Currently, there are some methods of preparing data for validating an IT value model correctly. One challenge in applying data mining to validate model values is to convert data into an appropriate form for this activity. Data mining algorithms can then be applied using the prepared data. The adequacy of data preparation often determines whether this data mining is successful or not. This study aims at creating a method for preparing the data during validation. The basic method used for data preparation is the Returns to Scale (RTS) method because it is easy to use and can be combined with further validation results. This method was applied by employing two models: two-factor and three-factor models. Both models are then compared to see the difference between them. The developed model is then tested on Branchless Banking (BB) and Downstream Petroleum (DP) industries. The results show that the method is applicable to prepare the data for validation. In addition, the results also demonstrate that both industries, DP and BB, have different result on data preparation, meaning that DP and BB have different ITs. This research contributes not only to a technique of preparing data for validating an IT value model by the RTS method but also can be a basis to work for data validation because it can give a result with the behaviour of the industry.
Indra Surya Permana, Teguh Arlovin, Taufik Hidayat, Ivany Sarief, Hanhan Hanafiah Solihin, and Cecep Deni Mulyadi
IEEE
The proposed geographic information system (GIS) provides a systematic approach to locating and connecting art studios, enabling cultural institutions, artists, and students to collaborate and share resources more efficiently. The implementation of a structured GIS and Haversine Formula and Greedy Algorithm can improve the management and connectivity of art studios in Cirebon, fostering connections and collaboration between art studios, artists, and cultural institutions. This research used a greedy algorithm to find the shortest route from user’s current location to the destination point, i.e., Art Gallery. The Greedy Algorithm is a problem-solving approach that aims to find an optimal solution by iteratively selecting the best local option. The Haversine formula is used to calculate the distance from each connected node using the haversine formula, which converts latitudes and longitudes from degrees to radians and calculates the differences in latitude and longitude. In implementing the nearest art studio search system, the Haversine Formula combined with Greedy Algorithm can be employed as an alternative for search logic since it can directly calculate the distance from the initial point or user’s selected point by utilizing easily identifiable reference points.
Taufik Hidayat, Kalamullah Ramli, R. Deiny Mardian, and Rahutomo Mahardiko
Yayasan Riset dan Pengembangan Intelektual
The industry and government have recently acknowledged and used virtual machines (VM) to promote their businesses. During the process of VM, some problems might occur. The issues, such as a heavy load of memory, a large load of CPU, a massive load of a disk, a high load of network and time-defined migration, might interrupt the business processes. This paper identifies the migration process among hosts for VM to overcome the problem within the defined time frame of migration. The introduction of VMs migration in a timely manner is to detect a problem earlier. There are workload parameters, such as network, CPU, disk and memory as our parameters. To overcome the issue, we have to follow the Model named Fuzzy rule. The rule follows the basic of tree model for decision-making. The application of the fuzzy Model for the study is to determine VMs allocation from busy VMs to vacant VMs for balancing purposes. The result of the study showed that the use of the fuzzy Model to forecast VMs migration based on the defined rule had 2 positive impacts. The positive impacts are (1) Time frame live migration of VMs can reduce workload by 80 %. This aims to reduce failures in performing a live migration of VMs to increase data center performance. (2) In testing, the fuzzy Model can provide results with an accuracy of 90 %, so this model can perform a live migration of VMs precisely in determining the execution time. Next, the workload could be balanced among VMs. This research could be used further to improve 5G Quality of Experience (QoE) shortly.
T Hidayat, R Mahardiko, and M Alaydrus
IOP Publishing
Information Technology (IT) is an enabler for Indonesian tourism industry. Before Covid-19 pandemic, the industry already felt the effect of IT. The pandemic changes the global industry situation. This paper presents mathematical model on the number of tourism start-up, the number of local and international tourists, and national Gross Domestic Product (GDP). The results of this study show that while there are problems because of Covid-19 pandemic in the following year, the future income of tourism industry shows steady growth. The model can be used by other industry for better analysis.
Sianturi Tigor Franky Devano, Taufik Hidayat, and Mudrik Alaydrus
Institute of Advanced Engineering and Science
<span>Wireless charging by transferring energy between two objects using electromagnetic fields commonly called Wireless power transfer is an alternative technology that is physically installed in an electric vehicle (EV) to charge. Parking alignment is a very important factor in driver behavior that affects Power transfer efficiency (PTE). The proposed hexagonal coil array design in this experiment is to optimize PTE and receiver coil size. The experimental results show that PTE in the tangential boundary plane Misalignment increases by 5-10% when compared to coil array circles and increases by 82% when compared to single coil circles. </span>
I S Permana, T Hidayat, and R Mahardiko
IOP Publishing
The use of the Android Operating System in almost all smartphones in the world broadens the possibility of how people use the smartphones itself, including the use of smartphone cameras as an alternative to scanners. This article discusses how people behave in using the scanner application on smartphones for the purpose of document scanning. The method used here is the Extended Unified Theory of Acceptance and Use of Technology (UTAUT) analysis or called UTAUT2 with the addition of moderating variables outside the UTAUT2 model, namely the level of education and employment of 296 respondents that explores some questions regarding their behavior in using portable scanner application on their smartphones. The results of this study show that not all factors in UTAUT affect people’s desire to use this application. Some factors which also have a partial result is the moderating effect of the factors of age, experience, level of education and employment.
Taufik Hidayat and Rahutomo Mahardiko
Inderscience Publishers
Indra Surya Permana, Taufik Hidayat, and Rahutomo Mahardiko
IEEE
The deployment of Indonesian telecommunication industry especially in mobile broadband 2G,3G and 4G technologies had several problems because of large and archipelagic territory. The large territory of this country caused some outer areas to force network provider to support 3G network whereas some other smaller areas have 2G network only. This study presented the region capacity in Indonesia, the number of Base Transceiver Station (BTS sites) in each territory, divided among 2G, 3G and 4G technologies, and revenue growth (%) and then analyses the 2G operation switchoff with ANOVA analysis. This method is suitable to find the result because of the significant difference and influence of many factors (3 variables in this research). The study reviewed the economic factor such as revenue growth from each band 2G,3G and 4G operation in each region which ended up that the operator should consider to switch-off the 2G network in some regions. The research also contributed not only for to the telecommunication technology advancement in Indonesia but also for the consideration to network provider to gradually switch-of fthe 2G technology in each Indonesian area to move to better technology such as 5G technology.
Taufik Hidayat and Rahutomo Mahardiko
IEEE
Nowadays, method has been used to validate Information Technology (IT) value model for oil and gas industry. The purpose of this research is to validate IT value model that has been derived from existing studies. To do the validation, dynamic Partial Adjustment Valuation (PAV) can be carried out. The method is conducted by comparing Average Performance Ratio (APR) between two factors (without IT) model and three factors (with IT) model. The result indicates that APR of three factors model is higher than two factors model. It can be concluded that the model is valid. This research gives contribution to the growing body of knowledge in examining IT for oil and gas industry by using Resource-Based View (RBV).
Indra Surya Permana, Taufik Hidayat, and Rahutomo Mahardiko
IEEE
Peer to peer lending on financial technology (fintech) is a new breakthrough in the field of finance where it changes the paradigm of people in making transactions, especially in term of financing. This is due to the rapid growth of smartphones user throughout the world, including Indonesia. In addition, the huge amount of social media use also increases engagement rate in using this service. This study discusses effect of the smartphone and social media user growth to number of borrowers as well as total loans through fintech lending because of current condition in fintech situation. The method used in this research is structural equation modeling. The results turned out that smartphone and social media factors had different effects significantly, some of which have both negative and positive effects, both on the number of borrowers and on the total loan.
Taufik Hidayat and Rahutomo Mahardiko
IEEE
Until today, industries know about their Information Technology (IT) spending year by year. Those industries calculate and understand that the spending always grows. The problem is they only know that their IT spending is just costs and no effect to performance in term of revenue. This study aim is to create model that can explain relation between IT spending and industry's performance. The research process employs IT value analysis as a basis. This approach can generate IT value through capabilities and core competencies. Hence it will impact on performance. The study will employ Downstream Petroleum (DP) industry. We take DP because the case study is non IT industry. As non IT industry, DP industry only spends low cost on IT. The industry has a need to know the IT value. The research result shows that certain IT resources may have positive impacts to IT value by deploying IT value model.
Taufik Hidayat, D Sianturi Tigor Franky, and Rahutomo Mahardiko
IEEE
Cloud computing can be described as a network technology among users to share data, resources and even services. Because million users have the same rights to use network for data transmission, data is vulnerable to be hacked by irresponsible person. The concentration of security on current system can only be found on data storage on cloud, meanwhile less concentration is found on data transmission. As we determine security can be potential issue, the proposed system (encryption) will secure data transfer. The proposed system, Advanced Encryption Standard (AES) algorithm, will anticipate every irresponsible person to hack cloud system. The proposed algorithm will encrypt and decrypt information on data transmission and storage. To improve published research on security of data transmission by using AES algorithm is the paper purpose. In order to do that, the research will use several mathematical methods. There are Markov Chain and Forecasting methods. Research results show that there are possibilities to research on AES algorithm for security of data transmission in the near future by 29% in 2023.
Taufik Hidayat, Rahutomo Mahardiko, and Franky D. Sianturi Tigor
IEEE
Lately, utilization of Wireless Sensor Network (WSN) technology is increasing and widely applied in various fields. WSN is currently applied for Internet of Things (IoT)-based agriculture. An example of WSN technology is ZigBee. ZigBee provides irrigation control, climate monitoring and food chain control systems. To support all mentioned systems, ZigBee’s IoT supports communication among available sensors. By having communication, ZigBee is expected to improve productivity and predict agriculture problem. The paper will use Systematic Literature Review (SLR) to give an overview that IoT has potential for agriculture. This is because IoT can help every farmer during operational on food and livestock production.
Taufik Hidayat and Rahutomo Mahardiko
Telecommunications Association Inc.
Nowadays, information technology (IT) has been used widely in the world. People use IT in their jobs and get the latest information about everything that happens in the world. Therefore, IT has a big impact on peoples’ lives. Information can be found easily in a news portal, social media, and a search engine. This study used social media WhatsApp, Telegram, Facebook, and Instagram as the primary sources. In using social media, people can share positive (news, current research) or negative (hoax) information. Unfortunately, messages can be shared without verifying their truthfulness. Many people have used social media to share fake news and bullying. Hong Kong, France, Indonesia and Venezuela are examples of countries where a hoax has become the part of peoples’ lives. In Indonesia, the government created a Constitutional Law (CL), Undang-Undang Informasi dan Transaksi Elektronik (CL of Information and Electronic Transactions), to regulate responses to negative information and filter this kind of information. This paper analyses the effect of social media regulatory law and hoax news on social life. The results of this study show that the Indonesian CL could be useful to regulate the use of social media in other countries.
Taufik Hidayat, Rahutomo Mahardiko, and Mudrik Alaydrus
Telecommunications Association Inc.
Current mobile telecommunications deployment in Indonesia, based on 2G, 3G and 4G technologies, lags behind many other developing countries because of Indonesia’s larger territory. This paper presents recent data on revenue growth (%) and the number of Base Transceiver Stations (BTSs) in Indonesia, divided among 2G, 3G and 4G technologies, and forecasts future revenue growth and numbers of BTSs for the next few years. The results show that, while revenue growth from 2G operation is decreasing and 4G deployment is significantly increasing, there are still significant revenues from 2G services and many 2G BTSs in operation at the end of the forecast period, making it difficult to shut down the 2G networks in the near future.
Taufik Hidayat, , Sianturi Tigor Franky D, Rahutomo Mahardiko, , and
Penerbit UTHM
From our understanding about WPT, it is a very advanced technology to transmit energy with indirect connection between source and destination [1]. Lots of applications are implementing this technology, such as: (1) electric vehicles (EV), (2) capsule endoscopy, (3) power supplies (underwater or beneath the earth) and so on without any affection [1], [2], [3]. Power transfer applications demand has significantly increased especially in high power. Basically, the required power level must be handled well by converters to transmit power between primary and secondary sides [4], [5]. The problem is that the semiconductor device limitations limit the latest WPT system [6]. In addition, the low reliability of the WPT system is based on magnetic pairing with a single transmitter and receiver because it only has one energy transmission channel [7]. This is not suitable for applications that require power up to hundreds of KVA to MW. Therefore, WPT applications with various conditions including large incompatibilities must be able to meet the requirements with high efficiency transmission [8]. Lately, EV is one of the most common applications of WPT technology [9]. Abstract: Nowadays, the transportation changes are happening in the Electric Vehicle (EV). Changes are made from cable to Wireless Power Transfer (WPT) as a solution. Current state of the implementation, there is still a misalignment on Power Transfer Efficiency (PTE) because of parking behavior. To overcome the problem, we propose new coil design for better optimization of the PTE. In addition, the new design has better size reduction of receiver (Rx) coil. Our experimental research is about to simulate Rx and transmitter (Tx) designs in simple and small scale of parking situations. The results show that an incremental PTE in the center of the coil, an incremental PTE during misalignment on a radius array, and an incremental PTE during misalignment tangential boundary. We conclude that overall better PTE is achieved compared to single coil design and circular coil arrays.
Taufik Hidayat and Mudrik Alaydrus
IEEE
Evolution of virtualization in data center is fast and is being widely used in the world. Usage of virtual machine (VM) in data center (DC) cannot be aside from problems such as: Operating System (OS) problem, virtual network, memory and CPU utilizations. Besides of those problems, utilization of VM can be found in cloud computing technology to make more efficient and its performance should be good entirely. Problem in VM is very complex. It can be found in OS, application and physical server. To keep it in good performance, operational engineer should operate VM monitoring system in order to keep VM run well. This research will use several methods, such as: fuzzy Mamdani, holdout validation and naive Bayes. These methods will then create decision making for VM performance condition.