Harco Leslie Hendric Spits Warnars

Binus University | binus · Doctor of Computer Science (DCS)

The research aims to provide Data Monetization (DM) services for an Indonesian utility company as a pilot to generate additional revenue beyond the primary operation. The service is built using an iterative development lifecycle framework and evaluated based on five Quality Goals (QGs), including application and security testing activities. The fra...

One of the challenging decisions for students is taking a job specialization. To make their decisions, they use subjective perceptions of friends or family due to the lack of guidance and limited resources. This increases the risk of dissatisfaction with the work environments. To address these drawbacks, this study presents a personalized career-pa...

Infectious diseases often occur, especially as diseases such as COVID-19 have claimed many lives in the years between 2019–2021. That’s why it’s called COVID-19, considering that this infectious disease outbreak started in 2019, and its consequences and effects are devastating. Like other countries’ governments, the Indonesian government always ann...

Monitoring learning outcomes is an activity that must be carried out by the study program and requires time. Implementation of a system that can monitor learning outcomes needs to be done to eliminate the gap between information needs and the monitoring process. We propose an architectural model to monitor and evaluate student learning outcomes. Th...

ITS is a method of teaching that uses technology to give lessons without the need for an instructor to be there. A systematic literature review (SLR) was conducted in this research to identify the components of an intelligent tutoring system, and the results are presented. The method used in this literature review is the prism method. The steps in...

This paper proposed two models of data warehouse schema for the fire department of DKI Jakarta, where the 1st model contains six tables consisting of 3 fact and 3-dimensional tables, and the 2nd model only contains three fact tables. The 2nd model denormalises the 1st model, where the number of tables is less than the 1st model, where at the end of...

Twitter is a social media platform that has a large amount of unstructured natural language text. The content of Twitter can be utilized to capture human behavior via emphasized emotions located in tweets. In their tweets, people commonly express emotions to show their feelings. Hence, it is crucial to recognize the text’s underlined emotions to un...

Car spare parts are parts of a car that consist of components that form a certain unity and function, there are some parts that are damaged more often and therefore must be replaced more often. In this research, to predict the availability of spare parts using the times series moving average prediction method with random forest. The dataset used in...

Background: While deepfake technology is still relatively new, concerns are increasing as they are getting harder to spot. The first question we need to ask is how good humans are at recognizing deepfakes - the realistic-looking videos or images that show people doing or saying things that they never actually did or said generated by an artificial...

Dynamic programming is a fundamental algorithm that can be found in our daily lives easily. One of the dynamic programming algorithm implementations consists of solving the 0/1 knapsack problem. A 0/1 knapsack problem can be seen from industrial production cost. It is prevalent that a production cost has to be as efficient as possible, but the expe...

This paper reviews the latest trends and challenges in implementing digital twin technology. A digital twin is a tool used in various industries to improve efficiency, optimize processes, and enable advanced analysis. The review involved searching major research databases and search engines for articles published between 2018 and 2023. The findings...

The growth in Information Technology (IT) jobs is predicted to reach 15 percent between 2021 and 2031. The growth of IT jobs has resulted in a remarkable change in all infrastructure, such as information, skills, and domains covered in IT job profiles. Unfortunately, job roles and skills in this field remain undefined. The gap between the supply an...

There have been numerous studies that discuss profiling for various subjects, including criminal profiling, consumer profiling, and employee profiling, among others. However, song profiling is a relatively rare and underexplored area. In fact, profiling songs can provide us with new insights. Dangdut, one of the most popular musical genres in Indon...

Blockchain, Metaverse & NFT are technologies that were booming during the Pandemic. As a derivative product of blockchain, the Non-Fungible Token (NFT) is one of the technologies that has attracted the most interest from investors and the public because of its potential benefits and has always been closely associated with the Metaverse as a ma...

The rise of blockchain technology and smart contracts has brought widespread attention due to their capacity to transform multiple industrial sectors through decentralized, transparent, secure transactions. However, despite their promise to revolutionize various fields worldwide, lingering concerns regarding security risks impede their adoption rat...

One of the Information and Communication Technology (ICT) developments used in the learning process is the Intelligent Tutoring System (ITS), and gamification can overcome boredom, lack of interest or motivation, and monotony when using the ITS. In this study, the application of ITS equipped with Gamification is called ITS + G. Currently, several s...

Background: While deepfake technology is still relatively new, concerns are increasing as they are getting harder to spot. The first question we need to ask is how good humans are at recognizing deepfakes - realistic-looking videos or images that show people doing or saying things that they never actually did or said generated by an artificial inte...

Product reviews represent the brand image of online stores. Shop owners need to respond to product reviews with negative emotions. The high velocity of product review data and shallow understanding of current auto-reply features are problems to be answered. Nevertheless, some existing studies often ignore the emotions located in product reviews. Th...

Background Heart disease is a leading cause of mortality worldwide, including in Indonesia. With millions of deaths attributed to heart disease annually, early detection and prevention are essential in reducing its impact. This study aims to address the issue of late diagnosis by focusing on early detection and monitoring of heart disease symptoms....

Dataset is a very important role in music information retrieval (MIR), it widely used for several task, such as: music classification, music recognition and music identification. Indonesia is an archipelago country, consisting of 38 provinces, where each of province in Indonesia has its own regional songs. In Indonesian culture, regional song is pa...

Software reliability is an important factor in software quality measurement, which is measured by the probability of an error-free software within the operating period within a given time period and environment. Software reliability measurements are performed at every stage of software development process to evaluate whether the software reliabilit...

To day's society is different from the past, where the speed of the internet is getting more sophisticated, and the existing gadget technology is getting faster, and of course, this is also changing the lifestyle of today's people, which of course almost half of their daily life is spent in front of gadgets. On the one hand, this is undoubtedly ver...

Sign language is the most commonly used communication medium for people who are deaf and mute. By using body movements, they can convey meaning through visual cues, not vocal cues. This type of language is learned almost exdusively by people who are deaf or dumb and those who interact with them on a daily basis. Most people do not learn it because...

In life, various challenges and problems faced by deaf people such as communication skills and other problems, including emotional, mental, and societal development However, technology is needed that can help the process. This Smart Application try to build communication between the deaf to share thoughts in group chats, including getting informati...

Disability is a complex problem affecting many lives in Indonesia, especially people with hearing impairments. Disability is also a complex phenomenon, starting from the type of disability, degree of disability, and age of persons with disabilities to interactions and environmental impacts on disability. Moreover, there are many testimonies from ar...

The presence of cryptocurrencies as means of trading and investing has presented new opportunities to make profits. Unfortunately, investment bias becomes a phenomenon that accompanies investing behavior for many people which actually results in losses and regrets. This study uses a narrative review method to identify cognitive, affective, and cont...

Nowadays, many people are starting to care about early investment. One of the most popular investments lately, especially for millennials, is a stock investment. In investing, there are advantages and risks of loss. One way to reduce the risk of loss is by using price predictions before investing in stocks. This paper proposes the use of deep learn...

The ability to differentiate various products in the retail store plays an essential role to provide effectiveness to customers and reduce or even eliminate long queues. However, traditional machine learning algorithms are incapable of recognizing many subordinate categories in various retail product. This paper aims to recognize the retail product...

Currently, Indonesia and the whole world are being hit by the Covid-19 pandemic which has an impact on various fields of life. It affects all sectors, including the education sector. The government through the Ministry of Education and Culture makes a policy in education in terms of the learning process. Teaching and learning activities that were i...

A great nation is a nation that upholds the services of its predecessors, namely the nation's heroes who fought for the independence of this Indonesian state in 1945. The current generation is expected to appreciate the services of heroes by respecting this nation's history and the current generation's duty to fill this independence by continuing i...

Industry 4.0 has driven the need for Information Technology (IT) & Operational Technology (OT) convergence to modernize OT by leveraging IT. The challenges for manufacturing operations are utilizing and converting years of scattered data into valuable information integrated into the company's digital transformation strategy. This paper aims to prov...

Identifying and providing well-targeted social assistance to potential beneficiaries for poverty alleviation is important for achieving the Sustainable Development Goals (SDGs) targets. Machine learning algorithms can be a solution in achieving SDGs. This paper aims to model poverty measurement based on integrated data using machine learning, super...

Background: While deepfake technology is still relatively new, concerns are increasing as they are getting harder to spot. The first question we need to ask is how good humans are at recognizing deepfakes - realistic-looking videos or images that show people doing or saying things that they never actually did or said generated by an artificial inte...

Network control system (NCS) approaches for distributed closed-loop control systems have been established in industrial control. However, recent advancements in cloud computing provide scalable, elastic, and low-cost networked computing capabilities over the internet, which can be utilized as an extension of NCS, in this term, cloud-based control s...

Music has been a big part of human life since ancient civilizations, and listening to music is fun and for the benefit of humans. Over time, computer science continues to develop, and music begins to be recorded digitally and belongs to the group of unstructured data whose data needs to be managed to become structured data. Much academic work has a...

The selection of military personnel through the recruitment stage must be under planning. The calculation in this study uses the Markov Chain method with an error calculation which is the result of a comparison with the conditions of the number of recruits in the previous period so that the error value is known and can be used in the next period us...

Homeschooling is a family and environmental/informal education path. Homeschooling is the practice of instructing one's children in one's own home rather than sending them to a school or other institution that follows a more conventional model of teaching and learning in a group setting. Problems for children who follow homeschooling are related to...

Injection machines are already on the market with varying prices based on its capacity. Even the smallest machine on the market has a capacity starting from around 100 grams per second, with an expensive price starting around USD 13,000. Furthermore, the machine also has a large power consumption as well. This condition is unfavorable to the star...

Different brokers have different candlesticks. As a result, analyzing forex becomes more difficult because candles in one broker cannot be validated by candles in another. Many specific candlestick patterns are difficult to generate for all brokers, so traders' chances of winning will be reduced. Some previous studies have focused on how to identif...

Hoaxes are something that can not be avoided, especially in Indonesia, where the literacy rate in Indonesia is quite low, they are easy to believe in news without doing fact check. The worst thing is that news that is trusted by the public may not be read completely through the entire content. They believe, from the title alone could already covers...

Neural style transfer is a technique to transfer a style of an artistic image to another photorealistic image. The early development of this technique is exploiting the intermediate output of a deep learning model and utilizing it to optimize a targeted image. However, this technique needs some time to finish the process. An approach called knowled...

The problems that exist in the field of art and culture preservation experienced by the arts and culture community side are the limitations on physical facilities for disseminating works, exchanging information between arts and culture communities, as well as the need to increase professionalism so that they can be independent in order to help impr...

In the current era, Artificial Intelligence (AI) and Computer Vision take the main role and participating to the people daily activities. Face Expression became as interesting topic to be explore. Face expression recognition or detection could be applied in many aspects, such as for student focus detection based on face expression, intruder de...

Due to the prospects for financial gain, forex is always attractive to many people. However, because forex market analysis is not simple, a computer is needed to assist in creating predictions using features that are understandable to people. This study employs the Multilinear Regression technique to identify these kinds of features. The features a...

A smart parking system is an application that can help users get information about the available parking spaces in a place. In a smart parking system, there are implications of several technologies that can solve problems in the parking system. The use of the Internet of Things is done by connecting sensor devices scattered in each parking lot to t...

Nowadays, technology is developing rapidly. The middle class has experienced technology such as smartphones, but unfortunately, there are still many applications that are not friendly for people with disabilities. The closest example is in Indonesia, where people with disabilities still receive less attention; all development support facilities do...

This paper reviews multistage algorithms with various concepts, and various forms of multistage algorithms are discussed after a detailed research. Previous research searches are conducted using Google Scholar and the software Publish or Perish, and carried out in three ways: the exploration of multistage algorithm publications, classification of m...

Hierarchical cluster (HC) or hierarchical cluster analysis (HCA) is a type of clustering algorithm where the algorithm will group similar objects based on their similarity to groups called clusters. The objectives are that the clusters will be as different as possible from other clusters, and the objects within the cluster are mainly similar to eac...

Scholarship assistance for children of educational age, especially during the COVID-19 pandemic, has provided some relief for some families affected by the economic turmoil during the COVID-19 pandemic, where some parents were laid off, or their parents were reduced in salary. This scholarship at least helps students to continue their dreams of obt...

The paper aims to build a mobile application in order to manage and control using power. This paper raises the theme of saving electrical energy, designed using IP addresses. A mobile application called EctroS-ID (electronic smart) as an electrical power controller. The purpose of the design is to connect electronic IP addresses such as air conditi...

Garbage is a severe problem for Indonesia in the millennial era, especially in Jakarta, the capital city. In addition, the amount of garbage in DKI Jakarta continues to increase every day, which in the end, the garbage that is clogged in waterways will cause puddles and floods during the rainy season. This paper discusses the development of a Websi...

Any type of bullying can make the victims traumatized and not all victims can overcome it without the need for professional help, particularly the teenagers who are in the vulnerable age for bullying. Hence, a mobile application named “Protect ur smile” has been created for victims who can consult with their choice of psychologists. Moreover, they...

Online transactions are significant in the pandemic era. Using online transactions can minimize the risk of physical contact with disease transmission between buyers and sellers. However, with so many choices of items, it becomes challenging for users to decide which item suits their needs. For this reason, the recommender system was created as a h...

Deoxyribonucleic Acid Primer Design is an important factor in the success of the Polymerase Chain Reaction process because it will determine the value of Guanine and Cytosine content and Melting temperature for the genome amplification process in the adequacy of research data. To get a good primer design, a simulation process is needed to get the d...

The driver's behavior and competency model is adopted from the graduate competency standards based on the Indonesian National Qualifications Framework (KKNI). The adopted component consists of 4 components. These four components are called competency units. The first unit of competence is about attitudes and values. The second unit of competence de...

Typographical errors are common in written languages, including Indonesian. It will, however, lead to a misunderstanding of the meaning of the words. Nevertheless, an Indonesian spell checker is still uncommon. Furthermore, no extensive literature review of spell checkers for the Indonesian language has been conducted. This study aimed to present e...

Career Recommendation System (CRS) is an artificial intelligence solution capable of suggesting appropriate jobs or careers based on user profiles and industry needs. This study presents a systematic literature review that focused on variant characteristics of CRS and has been implemented in the last ten years. The review found 17 studies were extr...

This study aims to find the direction and objectives of research in the current Community-based tourism (CBT) and relationship with technology domain. We Use the five phases of bibliometric analysis method, we extracted 272 documents from the Scopus database for the period 1991 to 2021 and refined keywords by adding inclusion criteria to produce 17...

We proposed a model platform that can unite all health centers in Jakarta to share data with the patient as it will benefit the patient, the health workers, and the government. When you are sick and come to the practicing doctor, you will get the same problems: queues. Besides that, you are faced with the same repeated questions such as the history...