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JOIV : International Journal on Informatics Visualization

joiv
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Published by Politeknik Negeri Padang

ISSN : 25499610 EISSN : 25499904 DOI : -

Core Subject : Science,

Computer Science & IT

JOIV : International Journal on Informatics Visualization is an international peer-reviewed journal dedicated to interchange for the results of high quality research in all aspect of Computer Science, Computer Engineering, Information Technology and Visualization. The journal publishes state-of-art papers in fundamental theory, experiments and simulation, as well as applications, with a systematic proposed method, sufficient review on previous works, expanded discussion and concise conclusion. As our commitment to the advancement of science and technology, the JOIV follows the open access policy that allows the published articles freely available online without any subscription.

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Articles 1,172 Documents

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Evaluation of Visual Based Augmented Reality (AR) Learning Application (V-ARA-Dculia) for Dyscalculia Learners Kohilah Miundy; Halimah Badioze Zaman; Aliimran Nosrdin; Kher Hui Ng
JOIV : International Journal on Informatics Visualization Vol 3, No 4 (2019)
Publisher : Society of Visual Informatics

The rapid growth in technology have affected processes in various domains such as business, healthcare, agriculture and education. Computer related applications used in these domains are available so easily, that it is impossible to imagine a situation without them. Technologies that were available but hardly commonly used a few decades ago such as Virtual Reality (VR) and Augmented Reality (AR) have now become technologies that are fast gaining interests in most fields including service related1 fields such as healthcare and education. The basic idea of AR is to superimpose sense enhancements over a real-world environment. It is a perfect solution for learners with learning difficulties as it combines the advantages of multi senses of the learners, helps them to understand learning better when the integration of both virtuality and reality is embedded in their learning applications. AR is mostly effectively used when computer generated visual enhancements are integrated into real life applications. Thus, this paper highlights the evaluation of the visual-based AR learning application to investigate its plausible assistive functions that can help dyscalculia learners learn Mathematics in a more meaningful way. Findings of the study showed that the students who had difficulties on memory, abstraction, sequencing processing, motor and visual perception, found the visual-based Augmented Reality (AR) Â technology embedded in an application, a positive assistive learning application that can help dyscalculia learners learn mathematics more effectively. Â Â

Efficient processing of GRU based on word embedding for text classification Muhammad Zulqarnain; Rozaida Ghazali; Muhammad Ghulam Ghouse; Muhammad Faheem Mushtaq
JOIV : International Journal on Informatics Visualization Vol 3, No 4 (2019)
Publisher : Society of Visual Informatics

Text classification has become very serious problem for big organization to manage the large amount of online data and has been extensively applied in the tasks of Natural Language Processing (NLP). Text classification can support users to excellently manage and exploit meaningful information require to be classified into various categories for further use. In order to best classify texts, our research efforts to develop a deep learning approach which obtains superior performance in text classification than other RNNs approaches. However, the main problem in text classification is how to enhance the classification accuracy and the sparsity of the data semantics sensitivity to context often hinders the classification performance of texts. In order to overcome the weakness, in this paper we proposed unified structure to investigate the effects of word embedding and Gated Recurrent Unit (GRU) for text classification on two benchmark datasets included (Google snippets and TREC). GRU is a well-known type of recurrent neural network (RNN), which is ability of computing sequential data over its recurrent architecture. Experimentally, the semantically connected words are commonly near to each other in embedding spaces. First, words in posts are changed into vectors via word embedding technique. Then, the words sequential in sentences are fed to GRU to extract the contextual semantics between words. The experimental results showed that proposed GRU model can effectively learn the word usage in context of texts provided training data. The quantity and quality of training data significantly affected the performance. We evaluated the performance of proposed approach with traditional recurrent approaches, RNN, MV-RNN and LSTM,Â the proposed approach is obtained better results on two benchmark datasets in the term of accuracy and error rate.

Application of Graphene Silicone Grease in heat dissipation for the Intel Core i5 Processor Phuong Thi Mai; Tuan Anh Bui; Hau Van Tran; Trinh Van Pham; Dinh Nang Nguyen; Minh Ngoc Phan; Thang Hung Bui
JOIV : International Journal on Informatics Visualization Vol 3, No 2-2 (2019): Internet of Things and Smart Environments
Publisher : Politeknik Negeri Padang

Graphene was known as the material that owning many superiority properties and high thermal conductivity. Thermal conductivity of single-layer graphene was up to 5200 W/mK (compared to the thermal conductivity of Carbon nanotubes 2000 W/mK and Silver 410 W/mK). This had suggested that graphene is the most potential material for heat dissipation applications for electronic devices, such as a computer microprocessor, high power LED... To enhance the dispersion of the GNPs silicone matrix, we were functionalized graphene nanoplatelets (GNPs) with carboxyl (-COOH) groups. The silicone thermal greases containing GNPs were prepared by High- Energy Ball Milling method (8000D Mixer /Mill). The results of SEM, FTIR, Raman showed the presence of the carboxyl groups in GNPs and GNPs uniform dispersion dispersed in grease. The results of thermal conductivity from Transient Hot Bridge THB-100 showed that thermal conductivity enhancement was up to 234 % with Gr-COOH 1.0 vol.%. Thermal grease is used as a thermal interface material to coolants for Intel Core i5 processor. The results of thermal dissipation efficiency shown the saturation temperature of the processor using thermal grease containing 1.0 vol.% Gr-COOH decreased 4℃, compared to the silicone grease.

Forecasting Tourist Arrival in the Province of Surigao del Sur, Philippines using Time Series Analysis Ruby Mae Ebuna Maliberan
JOIV : International Journal on Informatics Visualization Vol 3, No 3 (2019)
Publisher : Society of Visual Informatics

The study attempted to forecast the number of tourist arrival in the province of Surigao del Sur using the historical monthly tourist arrival data from 2012-2016 using three time series. Findings showed that the tourist arrival in the province is likely to be increasing. As more foreign and local tourist arrivals are expected as a result of forecast model. Furthermore, it showed that there was a long term increasing trend of the tourist arrival in the province. Results revealed that the Mean Absolute Percentage Error (MAPE) of the forecasted tourist arrival data yielded an error of 11 % which means that predicted data is closer to the actual data. Based on the findings of the study, the researcher recommends that this study can be adapted by other Tourism Office of CARAGA, Philippines.Â

Planning Strategy and The Use of Information Technology in Higher Education: A Review Study in Kurdistan Region Government Mazen Ismaeel Ghareb; Zanyar Ali Ahmed; Azad Abdullah Ameen
JOIV : International Journal on Informatics Visualization Vol 3, No 3 (2019)
Publisher : Society of Visual Informatics

An apparently interminable scope of techniques and methodologies has developed to misuse the capability of innovation. The issue has not been a shortage of research. Actually a great many examinations identified with computer and learning has been distributed amid the recent decades. The issue has been one of comprehending the tremendous, and developing, group of accessible research. There is developing enthusiasm for utilizing the ability of new innovation in a productive and successful approach to meet the instructional and research needs of faculty and students. The utilization of data innovation is one of numerous means to accomplishing magnificence. However the recharged enthusiasm for promoting brilliance in advanced education through Information Technology has carried with it a more prominent accentuation on the requirement for high-bore administration in this limit. Capability, combination of learning, joint effort with industry, collaboration among grounds at different levels, helpful procurement endeavors, what's more, transferability of gaining starting with one organization then onto the next are immeasurably imperative components in the administration way to deal with IT in higher Education. In addition to an extensive literature review, this examination contemplate utilized a trial also, quantitative, self-planned and controlled overview instrument to decide the mentalities and qualified respondents, containing IT leaders, IT staff, also, executives in higher instructive at open and private colleges in Kurdistan Region Government.

Development of Inventory Information System Using Enterprise Architecture Planning Method Muhammad Sobri; Poppy Indriani; Mohamad Taha Ijab; Isnawijayani Isnawijayani; Marlindawati Marlindawati
JOIV : International Journal on Informatics Visualization Vol 3, No 4 (2019)
Publisher : Society of Visual Informatics

Universitas Bina Darma is a university that has a vision to become an international standard university driven by innovations in Information and Communication Technology (ICT). The aim of this research is to support the vision of Universitas Bina Darma by creating an inventory information system for the university-wide implementation. The research uses Enterprise Architecture Planning (EAP) which defines the data architecture, application architecture, technology architecture, and its implementation. EAP consists of four levels, where by the top level is planning initiation, the second level consists of two stages namely business modeling, and current systems and technology, the third level consists of three stages of data architecture, application architecture and technology architecture. Lastly, the bottom level is implementation or migration plans. The results of this research is in the form of the Inventory Information Systems that has several menus, among others: procurement menu, maintenance menu, move transfer menu, space menu, loan space menu, asset menu and request menu. This Inventory Information System facilitates the faster processing of inventory data so as to produce quality report Â that is timely available when needed by the leadership, as well as facilitates the supervision of existing inventory.

Blockchain and Cryptocurrencies Technology: a survey Bashar Ibrahim Hameed
JOIV : International Journal on Informatics Visualization Vol 3, No 4 (2019)
Publisher : Society of Visual Informatics

Blockchain Â and Cryptocurrency has gotten wider considerations as of late. The decentralized digital Cryptocurrency Â and its underlying â€œBlockchain â€ technology has created much excitement in the technology community. The financial technology sector sees high potential value in Cryptocurrency Blockchain Â protocols, or distributed-ledger technology. The key advantage of this technology lies in the fact that it enables the establishment of secured, trusted, and decentralized autonomous ecosystems for various scenarios, especially for better usage of the legacy devices, infrastructure, and resources. In this paper, we presented a systematic investigation of Blockchain Â and Cryptocurrencies with explained simply in a way that Cryptocurrency is a form of digital currency that is being used to make transactions using a ledger known as Blockchain Â which is a decentralized system of banking in which there is no centralized authority and all the control lies on an algorithm and its controlling users. Blockchain , a financial tool that can potentially play an important role in the sustainable development of the global economy. The new technology is expected to bring massive benefits to consumers, to current banking system and to the whole society in general.Â

Improving the security of LSB image steganography Jamil Al-Azzeh; Ziad Alqadi; Belal Ayyoub; Ahmad Sharadqh
JOIV : International Journal on Informatics Visualization Vol 3, No 4 (2019)
Publisher : Society of Visual Informatics

Steganography is the technique of hiding secret data (message) within any media such as digital color image. In this paper we will merge steganography process with cryptography process in order to increase the security of the proposed method. The steganography process will based on LSB method, while the cryptography process will based on generating a huge private key and selecting a special function for encryption decryption. The proposed method will be implemented in order to calculate some performance parameters to prove the efficiency of the proposed method.

Application of Remote Sensing Data in Lithological Discrimination of Kerdous Inlier in the Anti Atlas Belt of Morocco Amine Jellouli; Abderrazak El Harti; Zakaria Adiri; El Mostafa Bachaoui; Abderrahmane El Ghmari
JOIV : International Journal on Informatics Visualization Vol 3, No 2-2 (2019): Internet of Things and Smart Environments
Publisher : Society of Visual Informatics

Remote sensing data reveals a great importance for lithological mapping due to their spatial, spectral and radiometric characteristics. Lithological mapping using spatial data is a preliminary and important step to mineral mapping. In this work, several spectral and radiometric transformations methods were applied on Landsat 8 OLI data to enhance lithological units in the study area situated in the Anti Atlas belt. The methods of Optimum Index Factor (OIF), Decorrelation Stretching (DS), Principal Components Analysis (PCA) and Band Ratioing (BR) showed good results for lithological mapping in comparison with the existing geological and field investigation. An RGB color composite of OLI bands 651 was developed for mapping lithological units of the study area by fusing optimum index factor (OIF) and decorrelation stretching methods. furthermore, Band ratios derived from image spectra were applied in two RGB color composites (7+4/2, PC1, PC2)Â and (PC1, 7/6, 3/7) providing good discrimination of the lithological units. The Landsat-8 OLI data significantly provided satisfied results for lithological mapping.

A Simple, Accurate and Highly Secure Method to Encrypt-Decrypt Digital Images Jamil Al-Azzeh; Ziad Alqadi; Qazem Jaber
JOIV : International Journal on Informatics Visualization Vol 3, No 3 (2019)
Publisher : Society of Visual Informatics

The digital image may be important and has a secret character, which requires not understanding it when looking at the naked eye or not understanding the contents. So seeking a method of digital image encryption-decryption is a very important task. In this paper we will introduce a new method of digital image encryption-decryption, which will be very simple, highly secure and accurate and highly efficient.

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Contact Name
Rahmat Hidayat

Contact Email
mr.rahmat@gmail.com

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Journal Mail Official
rahmat@pnp.ac.id

Editorial Address
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Location
Kota padang,

Sumatera barat

INDONESIA

Abstract

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Rahmat Hidayat

Contact Email mr.rahmat@gmail.com

Phone -

Journal Mail Official rahmat@pnp.ac.id

Editorial Address -

Location Kota padang, Sumatera barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Rahmat Hidayat

Contact Email
mr.rahmat@gmail.com

Phone
-

Journal Mail Official
rahmat@pnp.ac.id

Editorial Address
-

Location
Kota padang,

Sumatera barat

INDONESIA