bluuebunny/crossref_metadata_2025_split huggingface dataset:
A robust method of rectifying a tilted image to truly vertical
Authors: Tjahjadi M E , Handoko F 
Published: April 2021

Abstract
Unmanned Aerial Vehicle (UAV) is burgeoning technology for conducting aerial photography ranging from recreational purposes to engineering works. Due to its physical design, a mounted camera onto the UAV body is afflicted by engine and other vibrations during flight data acquisitions. In such condition, it is impossible to maintain the camera optical axis truly vertical while it is directed downward to the ground. Unavoidable aircraft tilts causes captured images to be exposed with the camera axis tilted slightly from vertical. In survey and mapping activity when vertical images are intended, the amount by which the optical axis deviates from vertical of more than 3 degrees is not met the work specification. Truly vertical images are necessary for producing high quality map from aerial images. This paper offers robust solution to rectify tilted images to generate equivalent truly vertical ones. We use exterior orientation parameters of the tilted images to perform double steps of transformation while resampling grid tessellations of the vertical images. To visualize the result, the transformation processes are coded by C++ programing language. The program results show a feasibility of our approach.
The adoption of information technology as decision support system in SMEs
Authors: Tyasari I , Sarwoko E , Nurfarida I N 
Published: April 2021

Abstract
The purpose of the study is to develop the information systems (IS) for SMEs as well as to investigate the factors that influence the decision of SMEs to adopt information technology (IT). Using a development research approach, it focuses on developing the Web-based Decision Support System (DSS) IT on SMEs, with the Waterfall model’s implementation. Structured interview (by phone) was conducted with 120 SMEs, and the results were tested using Confirmatory Factor Analysis. It shows that the implementation of the Web-based DSS for SMEs provides benefits for them as a database for management decision-making tools. In addition, it is also beneficial to the Indonesian policy makers in regards to the empowerment of SMEs. The findings of the study confirm the Technological, Organizational and Environmental (TOE) framework, that the decision to adopt IT by SMEs in Indonesia are influenced by technological factors including consideration of benefits, compatibility, and costs; organizational factors include the readiness of companies to adopt technologies including technological infrastructure readiness, relevant systems, and technical skills; environmental factors include customer/supplier pressures and competitor pressures. The findings also show that different sector of SMEs (manufacturing and service sectors) has different considerations in deciding the implementation of IT.
Snake and digital ladder applications involving the behavior of children applying the health protocols
Authors: Ariessanti H D , Gaol F L , Supangkat S H , Ranti B 
Published: April 2021

Abstract
This study defines the problem of how understanding health protocols during a pandemic is correctly conveyed according to age levels. This problem for the Government to implement gamification by modifying game media through snake and ladder game that can socialize health protocols for pre-school. Measuring the acceptance of a snake and ladder game media can be considered as a learning medium from the Government which will refer to four components (game content, ease of play, appearance, and active player involvement). The purpose of this study was to modify online-based games as a learning media and to measure children’s active interaction with parents in practicing health protocols during game play. This study will use a quantitative approach with data techniques through playing together experiments and filling in online research questionnaires from 115 samples as participants (7 Kindergartens). The results show that the snake and ladder digital game can have a significant effect on changes behavior in implementing health protocols. This research can provide a contribution that can be used as a reference for the Government to design a strategy for socialization through gamification.
Analysis of transaction patterns at drug store with Apriori Algorithm
Authors: Kusumo H , Marlina D , Novita M , Anwar M T 
Published: April 2021

AbstractData mining is a method for finding hidden data from big data which has been continuously applied in various fields such as marketing, education, bioinformatics and so on. Drug store is one of the business sectors that might take the advantage of the data mining. In the drug store, there is a sales transaction data which contains a big number of data. However, there is a limited number of analysis based on this sales transaction data. There are several information that can be obtained from this big data; one of them is the combination of items that consumers often buy. Apriori Algorithm is a data mining method that has been widely used in order to determine the combinations of frequently purchased products. By using the Apriori Algorithm in the sales transaction data of the drug store.
The development of thematic modules based on Strengthening Character Education (PPK) and Quick Response (QR) code
Authors: Rahayu S , Andayani E D P , Chrisyarani D D , Ladamay I 
Published: April 2021

Abstract
Less attractive and effective learning modules in thematic learning and less reinforcement in character education make students bored and do not really implement strengthening character education in the school environment and society. Therefore, alternative teaching materials are needed in thematic learning and strengthening student character education. The purpose of this research is to develop thematic modules based on PPK and QR code. This study applied the Bog & Gall development research model. The data analysis technique used was quantitative and qualitative data analysis. The research instruments used were observation, questionnaires and documentation. The results of research on the development of thematic modules based on PPK and QR Code, it is known that the results of the analysis of media experts obtained a score of 92.86 percent with a very valid category, material experts obtained a score of 88.64 percent in the very valid category, linguists obtained a score of 75 percent with a fairly valid category, the response of educators obtained a score of 89.92 percent in the very practical category, the response of students obtained a score of 87.78 percent in the practical category. Based on the results of the explanation above, the thematic module based on PPK and QR Code can be used as a supplementary teaching material for the thematic book to make it easier for students to acquire the lesson content and apply characters education in schools and communities.
Rainfall prediction using Extreme Gradient Boosting
Authors: Anwar M T , Winarno E , Hadikurniawati W , Novita M 
Published: April 2021

Abstract
Rainfall greatly affects human life in various sectors including agriculture, transportation, etc. and also can affect natural disasters such as drought, floods, and landslides. This situation prompts us to build an accurate rainfall prediction model so that prescriptive measures can be made. Previous research on rainfall prediction uses models that have their limitations and thus produce poor performance. This study aims to build a multivariate rainfall prediction model using the best performing technique to date namely the Extreme Gradient Boosting. This model is built based on 7 years of historical weather data collected by the weather station. The result had demonstrated that the model is capable of producing accurate predictions for daily rainfall estimates with training RMSE of 2.7 mm and the testing MAE of 8.8 mm.
“Say no to coding”: Designing of mobile-app-based learning media using Glide apps
Authors: Rahmawati A I N , Ariffudin I , Latifah L , Soejanto L T 
Published: April 2021

Abstract
Designing mobile-app-based learning media is challenging for educators with minimal programming skills. This paper aims to introduce a conceptual model as a framework for designing learning media. In this paper, we discuss steps by step a mobile-app-based learning media designer by using glide apps. Descriptive qualitative with literature review design was used in this article. Based on the literature review, it can be known that glide app can design a mobile app which easy to use, build without code, applicable for the m-learning era, and used for free. However, the creation of a mobile app in education should be careful, because it needs to be adjusted to the age level and psychological characteristics of students. Therefore, educators can use the glide app as an alternative to m-learning media designers.
“States of Matter” electronic worksheet assisted by Powtoon based on Sigil
Authors: Hakim A R , Yulia N K T 
Published: April 2021

Abstract
The purpose of this research was to describe the development of worksheets based on Sigil and Powtoon. This research and development used ADDIE Model. The research subjects were III grade elementary school students. The data collection instruments used a validation sheet and a questionnaire. Data analysis techniques used qualitative and quantitative data. The results of the evaluation of material experts and media experts obtained valid criteria with an average score of 86.36% for material experts and 87.5% for media experts. The responses given by students on this worksheet were 92.91% in the “very interesting” category. Based on these findings, it can be concluded that Sigil and Powtoon-based worksheets are suitable for use as instructional materials.
Probing time series multiplicative model and fuzzy relation methodologies
Authors: Pratiwi H I , Heriadi Y , Lukas L , Wibowo A 
Published: April 2021

Abstract
Probing of a question between two methodologies of the multiplicative model of Time Series and Fuzzy Relation is challenging to answer, without exploring each of both theories. This paper aims to discern any discrepancies or similarities in them, since each has detailed items that could lead to practical advantages to proceed on forecasting or decision making. Pseudo coding is a chance to explore theories and to surface those practical advantages. The finding states that the multiplicative model of time series factually has components that could have dependencies one to another, and the fuzzy relations help to map each point along their processes to determine how much dependency contained in the system that could conclude of a decision making.
Design of information systems of reporting the performance of honorary employees at the web based office of communication and informatics in Blitar Regency
Authors: Setiyaningsih W , Purwanto H L , Susanto G , Ahsan M , Eko A Y , Trestiarso Y , Daryanto D 
Published: April 2021

Abstract
The Office of Communication and Informatics of Blitar Regency carries out its main tasks supported by temporary personnel with their respective work targets. To find out the number of performance targets that have been carried out and performance appraisals per year, the temporary staff must make daily and monthly performance reports to the leadership. So far, technical reporting uses Microsoft Excel which must be printed one by one before being reported. If there are errors on the report must edit one by one. Each sheet stores daily reports so that many sheets are used to store reports in one month. Reports submitted to the leadership are still in copy which is prone to loss. This has a negative impact on the deadlines for collecting reporting and monitoring by the leadership. Based on these problems, a Web-Based Performance Reporting Information System was built to optimize performance reporting. The system is built with 3 access rights: admin, leadership, and non-permanent personnel, employee mastering and performance targets with targets, as well as daily and monthly reporting transactions. From the test results, the system with UAT 89.8% has been able to optimize performance reporting with the output of performance values per month and per year completed with graphs of performance targets.
Fault tolerance strategy to increase Moodle service reliability
Authors: Zaini A , Santoso H , Sulistyanto M P T 
Published: April 2021

Abstract
Moodle is one of online Learning Management System that can be downloaded and installed on our server for free. Moodle is suitable solution for universities to organize online learning. Changing all learning activities from offline to online during a pandemic situation, especially for universities, requires Moodle services to be reliably available. The more students it means the more traffic should be handled by Moodle server. Moodle consists of system, user’s data and a database. To increase Moodle reliability, we can rely on these components. We can use virtualization technology to simplify migration system and recovery process. Distributed file system technology is a best solution to store Moodle user data because it can be replicated into several nodes and support for high availability. Finally, the last component of Moodle is a database, we can replicate the database into several machine to increase availability. At the top of every Moodle component, we need cluster control to make sure all of Moodle components can be accessed. The results show that with the right fault tolerance strategy, all requests can be responded to 100% without error. In addition, this strategy can also increase the response time 12 times faster when compared to a single server.
Innovation of village governance based on technology 4.0: Case study in the new otonom district
Authors: Heri H , Caesar M R , Zakaria M , Suhendar D , Sulaeman A , Alamsyah T , Yusuf M D , Nuryani E , Undang G , Sumardi I 
Published: April 2021

Abstract
The problem in this study is that the use of technology has not been optimal in developing village potentials associated with opportunities for village innovation programs. The problem arises because not all villages have the same capacity in aspects of the potential and capacity of village officials, so that in response to this policy the village innovation program is an alternative solution to the problem of inequality in capacity, resources, and so on. This study uses a dynamic model of village development and innovation to analyze technology-based village innovation governance in new autonomous regions. The method used is a qualitative method which relies on secondary data with descriptive data analysis techniques. The results show that the factors in the dynamic model of rural development and innovation are based on internal and external factors. Internal factors include human resources and knowledge, information and communication, community participation, leadership, local wisdom, local potential, experience, challenges and obstacles. External factors include legal umbrella, networking and cooperation, government support, as well as appreciation and incentives.
ServQual and WebQual 4.0 for usability check academic information system of private university
Authors: Rahmat T , Nuryani E , Siswanto D , Undang G 
Published: April 2021

AbstractThis study aims to determine the level, correlation, and influence of the usability of academic information system services using the ServQual and WebQual 4.0 methods. The research method used is qualitative-qualitative and data collection through a survey verification consisting of 20 statements. The questionnaire statement uses a Likert scale with 100 student respondents as the main users. The sampling technique uses a simple random sampling technique. Then, the data analysis in this study uses path analysis. The results showed that ServQual was at an average score of 2.60, WebQual 4.0 was at an average score of 2.59, and the average score for the User Satisfaction variable was at 2.66. Academic information system improvement will have a major effect on User Satisfaction. This is by the results of the verification analysis which shows that ServQual (X1) and WebQual 4.0 (X2) have a positive effect simultaneously on User Satisfaction (Y), with a total effect of 0.688 or 68.8%. External influence of 0.312 or 31.2%. Thus, the academic information system in small and medium-scale private universities needs to be improved on the WebQual 4.0 variable and can be added by ServQual improvements, and ServQual improvements can also be done without including WebQual 4.0.
BD-Print: An Android based for bilingual digital promotion of integrated tourism in Garut Selatan
Authors: Cahyani R Y D , Hartono H , Sakinah R M N , Putra O N , Setyawati I E , Undang G 
Published: April 2021

Abstract
South Garut has tourism potential areas in Indonesia. However, the lack of government attention and information of the tourist area in South Garut resulted a lack of tourists coming. South Garut tourism will be more accessible by developing an information system that implements the Android system as a promotional medium to introduce tourist objects. This study is undertaken to design an Android-based BD-Print application to assist the development of the regional potential tourism sector in the Southern Garut. The BD-Print system development will use the System Development Life Cycle approach with the Waterfall method. This application has gone through several process such as planning, system analyzing, crafting, implementation, testing and development. Result of the experiment are: 1) The application programs created by using Android run well. 2) The features existed in the application program runs well as the main menu displays other menu options, login menu, tourism menu that displays some options of available tourist destinations, and mapping that displays the route from the current location to the location of the object destination tours. 3) This BD-Print application suits well as a reference for tourists that are going on a vacation without being accompany by tour guide.
Geographic Information System (GIS): Potential mapping of agribusiness in Southern part of West Java
Authors: Maskun T , Masluh M , Resmiawati E N , Tasdik K , Muhafidin D , Undang G , Putra O N 
Published: April 2021

Abstract
In this study, a mapping of the potential for agribusiness in the southern part of West Java was carried out, which serves as a policy material and business development in developing local potential in the agribusiness sector to improve local communities’ welfare. West Java Provincial Regulation Number 12 of 2014 divides the Southern part of West Java into three Growth Center (PP) zones, namely PP Palabuhanratu, PP Rancabuaya, and PP Pangandaran. The agribusiness potential of South West Java is dynamic and varied. However, it has not been developed optimally to improve local communities’ welfare, which is generally scattered in underdeveloped villages. The government and developers (entrepreneurs) have difficulty obtaining digital data updates. The purpose of this research is to map the regional potential in the field of agribusiness in the form of digital data to facilitate the development of agribusiness potential in coastal areas located on the shores of the Indian Ocean (Indonesian Ocean). The research method uses Geographical Information Systems. The results showed that the potential and variants of agribusiness in PP Palabuhanratu are spread across 5 districts. In PP Rancabuaya spread into 5 districts. Meanwhile, PP Pangandaran is spread over 5 districts. This research can be used as policy materials and business development in developing local potential in the agribusiness sector to improve the welfare of the people of West Java.
Decision support system for mapping SMEs batik Bangkalan facing industry 4.0 using SMART method
Authors: Kustiyahningsih Y , Anamisa D R , Mufarroha F A 
Published: April 2021

Abstract
There are many criteria and alternatives in determining recommendations and mapping of SMEs, so a decision-making method is needed. The SMART method is a multi-criteria decision-making technique where each alternative consists of number criteria that have values and describes how important the criteria are compared to other criteria. This weighting is used to assess each alternative in order to obtain the best alternative. Industry 4.0 criteria used are owner education, production results, information technology certified employees, having a marketplace, online payment facilities, online marketing media, e-commerce systems and information systems for SMEs. The purpose of this study is to map SMEs in Bangkalan into 4 levels in order to carry out work programs in the face of the 4.0 industrial revolution using the adaptive SMART method. The results of this study are 35% entered the mature readiness stage of Industry 4.0, 28% entered the early readiness stage and 37% entered the intermediate readiness stage readiness stage. Accuracy results the feasibility of the system by the SMEs cooperative office and SME players was 91.15 %.
The effect of deproteinization temperature on chitosan extraction for iron metal ions adsorption: Case study in Bangka post tin mining water
Authors: Aldila H , Fabiani V A , Dalimunthe D Y 
Published: April 2021

Abstract
This study aims to analyze the effect of deproteination temperature on the chitosan adsorption for iron metal ions in Bangka post tin mining water. Extraction of chitosan was carried out in four steps: deproteinization, demineralization, decolorization and deacetylation of chitin. The effect of deproteinization temperature on deacetylation process was studied. The results shown that the increase of deproteinization from 30°C to 90°C causes the decrease of chitosan deacetylation degree (DD): 65.72%; 64.31% and 63.75% respectively. The increase of deproteinization temperature triggers excess depolymerization which damages the chitin structure so that it has a negative effect on the chitosan DD. The metal content of iron in post tin mining water sample this study reached 6.1 ppm. Adsorption of chitosan on iron metal ions reduced the dissolved levels reaching an average of 99.67% from the initial content. The adsorption of iron lead by chelation mechanism. The reaction of chitosan with iron metal ion lead the formation of complex compounds with chitosan as a ligand and metal ions as the central ion. Based on the ligand strength series in spectrochemistry, the hydroxyl functional group is to the left of the amine group, so that the amine group is stronger than the hydroxyl group in adsorbing metal ions. It is more likely to predict that the valency forces through the sharing of electrons between transition metal cations and adsorbent are the adsorption behaviour may involve.
Prediction on the multiplet energy diagram of α-Al2O3: Mn4+under pressure
Authors: Novita M , Marlina D , Kusumo H , Anwar M T , Ogasawara K 
Published: April 2021

AbstractTo review the recommendations for the production of novel red phosphor materials, in this work we established the multiplet energy diagram of Mn4+in a-Al2O3under pressure. By the discrete variational multi-electron (DVME), the calculations were conducted based on many-electron approaches. Since the experimental data of Mn4+in a-Al2O3at zero pressure was the only data reported so far, the results in this work are our predictions. The effect of increasing pressure is naturally similar with the effect of decreasing bond length. This work indicates that the multiplet energies responsible for the absorption process increase as the pressure increase. Whereas, those responsible for the emission process decrease. These tendencies are the same as our previous calculations on a-Al2O3: Cr3+.