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28,188 Article Results

Determining Process Model Using Time-Based Process Mining and Control-Flow Pattern

10.12928/telkomnika.v14i1.3257
Riyanarto; Institut Teknologi Sepuluh Nopember Sarno , Widyasari Ayu; Institut Teknologi Sepuluh Nopember Wibowo , Kartini; Institut Teknologi Sepuluh Nopember Kartini , Yutika; Institut Teknologi Sepuluh Nopember Amelia , Kelly; Institut Teknologi Sepuluh Nopember Rossa
Determining right model of business process from event log is the purpose of process discovery. However some problems i.e the inability to discover OR, noise and event log incompleteness are emmerged while determining right model of business process. First, OR relation is often discovered as AND relation. Second, noise problem is occured when there are truncated and low frequency traces in event log. Thus control-flow pattern is used to solve issues of same noise relation frequency hence it discovers relation based on transaction function of activity. Consequently, it can refine non noise relation in business process model. Third, incompleteness leads to incorrect discovery of parallel process model; therefore we used Timed-based Process Mining which utilized non-linear dependence to solve the incompleteness. Finally this paper proposed combination of Timed-based Process Mining and control-flow pattern to discover OR and handle same frequency noise and incompleteness. From the experiment in section 3, this proposed method manages to get right process model from event log.
Volume: 14
Issue: 1
Page: 349-360
Publish at: 2016-03-01

Demosaicing of Color Images by Accurate Estimation of Luminance

10.12928/telkomnika.v14i1.2634
V.N.V.; Rajeev Gandhi Memorial College of Engineering and Technology Satya Prakash , K. Satya; Jawaharlal Nehru Technological University, Kakinada Prasad , T. Jaya; Rajeev Gandhi Memorial College of Engineering and Technology Chandra Prasad
Digital cameras acquire color images using a single sensor with Color filter Arrays. A single color component per pixel is acquired using color filter arrays and the remaining two components are obtained using demosaicing techniques. The conventional demosaicing techniques existent induce artifacts in resultant images effecting reconstruction quality. To overcome this drawback a frequency based demosaicing technique is proposed. The luminance and chrominance components extracted from the frequency domain of the image are interpolated to produce intermediate demosaiced images. A novel Neural Network Based Image Reconstruction Algorithm is applied to the intermediate demosaiced image to obtain resultant demosaiced images. The results presented in the paper prove the proposed demosaicing technique exhibits the best performance and is applicable to a wide variety of images.
Volume: 14
Issue: 1
Page: 47-55
Publish at: 2016-03-01

Research on Particle Filter Based on Neural Network for Receiver Autonomous Integrity Monitoring

10.12928/telkomnika.v14i1.2359
Ershen; Shenyang Aerospace University Wang , Qing; Shenyang Aerospace University Zhang , Tao; Shenyang Aerospace University Pang , Qu; Shenyang Aerospace University Pingping , Xingkai; Shenyang Aerospace University Li
This paper is under in-depth investigation due to suspicion of possible plagiarism on a high similarity index.According to the measurement noise feature of GPS receiver and the degeneracy phenomenon of particle filter (PF), in order to alleviate the sample impoverishment problem for PF, GPS receiver autonomous integrity monitoring (RAIM) algorithm based on PF algorithm combining neural network was proposed, which was used to improve the importance state adjustment of particle filter algorithm. The PF algorithm based on neural network is analized. And the test statistic of satellite fault detection is set up. The satellite fault detection is undertaken by checking the cumulative log-likelihood ratio (LLR) of system state of GPS receiver.The proposed algorithm was Validated by the measured real raw data from GPS receiver, which are deliberately contaminated with the bias fault and ramp fault, the simulation results demonstrate that the proposed algorithm can accurately estimate the state of GPS receiver in the case of non-Gaussian measurement noise, effectively detect and isolate fault satellite by establishing log-likelihood ratio statistic for consistency test and improve the accuracy of detection performance.
Volume: 14
Issue: 1
Page: 203-210
Publish at: 2016-03-01

Application of A Self-adaption Dual Population Genetic Algorithm in Multi-objective Optimization Problems

10.12928/telkomnika.v14i1.2740
Cheng; Hunan International Economics University Zhang , Hao; Hunan International Economics University Peng
Multi-objective evolutionary algorithm is a powerful tool in resolving multi-objective optimization problems. This algorithm inherits the advantages of parallel random search, strong global searching capability and the ability to solve highly-complicated non-linear problems of evolutionary algorithm and it is usually used in the optimization problems with multiple mutual conflicts. However, such algorithms are slow in convergence and easy to be trapped in local optimal solution. This paper proposes a multi-objective dual population genetic algorithm (MODPGA) and explores the improvement strategies of multi-objective genetic algorithm. The adoption of self-adaption and dual population strategy can guarantee that the algorithm of this paper can converge to Pareto solution set in a reliable and quick manner and it can perform more extensive search on the objective function space and conduct more samples on multi-objective functions so as to be closer to the approximate optimal solution set of global optimal solutions. This solution set also includes more optimal feasible points and provides reliable basis for the decision making.
Volume: 14
Issue: 1
Page: 238-244
Publish at: 2016-03-01

A New Hybrid Particle Swarm Optimization and Greedy for 0-1 Knapsack Problem

10.11591/ijeecs.v1.i3.pp411-418
Phuong Hoai Nguyen , Dong Wang , Tung Khac Truong
This paper proposes a new binary particle swarm optimization with a greedy strategy to solve 0-1 knapsack problem. Two constraint handling techniques are consider to cooperation with binary particle swarm optimization that are penalty function and greedy. The sigmoid transfer function is used to convert real code to binary code. The experimental results have proven the superior performance of the proposed algorithm.
Volume: 1
Issue: 3
Page: 411-418
Publish at: 2016-03-01

Investigation of Solar Panel Performance Based on Different Wind Velocity Using ANSYS Software

10.11591/ijeecs.v1.i3.pp456-463
Leow Wai Zhe , Mohd. Irwan Bin Yusoff , Muhammad Irwanto Misrun , Amelia Binti Abdul Razak , Safwati Ibrahim , Nur Syafiqah Binti Zhubir
 The low conversion energy efficiency of solar panel is affected by the several environmental issues. Solar radiation, ambient temperature, dust accumulation and wind velocity are the environmental problems. This main goal of this paper is to understanding the solar panel behavior under varying of wind velocity amounts. A three-dimension (3-D) model of solar panel is conducted in the present investigation. The solar panel model is simulated under given operating condition and different amounts of wind velocity. Four different of wind velocity value of 0 m/s, 0.43 m/s, 2.5 m/s and 6.95 m/s was selected to examine the solar panel performance. The simulation results are obtained with ANSYS simulation software. The temperature distribution of the solar panel model will be discussed in this current paper. The simulation result is showed highest wind velocity can be provided good cooling effect for the solar panel model in order to enable the solar panel can be operated to perform well at lower temperature.
Volume: 1
Issue: 3
Page: 456-463
Publish at: 2016-03-01

Vocational Higher Education Governance Recommendation Based On Cobit 5 Enabler Generic Model

10.11591/ijeecs.v1.i3.pp647-655
Heru Nugroho , Kridanto Surendro
Enterprise governance for higher education can be viewed as arrangements that include a variety of university assets in order to support the strategy in achieving the goals and objectives.  In the implementation governance in university there are factors that affect good governance which are individual or groups. These factors are then called an enabler of enterprise governance. In the previous research obtained the fact that the enabler of enterprise governance that provide significant influence in the governance of vocational higher education is the organization structure and information. Using four common dimensions for enablers in COBIT 5 Enabler Generic Model will give recommendation for governance in vocational higher education. These recommendations are expected help the vocational higher education in preparation of blue print of governance needs by considering the enablers of organizational structure and information.
Volume: 1
Issue: 3
Page: 647-655
Publish at: 2016-03-01

The Effort to Decrease Maternal and Child Mortality Rates through Cultural Transformation

10.11591/ijphs.v5i1.4768
Atik Triratnawati , Rani Ditya Kristianti , Aldo Pandega Putra , Pandu Bagas Setyaji
Maternal and infant mortality in Ende is still high, but research related a social science is rare. The cultural aspect and medical factors such as the lack of primary health care services are also play a role. This study aims are to identifying and formulate the local cultural transformation as a way to solve maternal and infant mortality. This ethnographic research was conducted in 2013. The study carried not only interviews, but also observation towards reproductive-age women, heads of family, traditional birth attendants, doctors, midwives, local leaders, adat leaders, pastors and sisters, local government officials, and head of health district at Ende. Data is analysed phenomenologically. The strong belief to adat and local tradition has implication to people’s attitude towards traditional birth attendants. Traditional birth attendants hold superior position in the community. They also have strong influence due to their ability to massage, correctly guess infant’s sex, reposition infant in the womb, and stop bleeding during labor. Maternal and/or infant mortality has nothing to do with traditional birth attendants because local people believe that such case happens as a result of hex or black magic called ru’u. Anemia, bleeding, food taboo, and incorrect diet pattern worsen the overall condition of pregnant women. Cultural transformation is done by alternating TBAs practices in massaging pregnant women. TBAs are encouraged to massage pregnant women’s back instead of stomach since pregnant women often have to deal with low back pain during pregnancy.
Volume: 5
Issue: 1
Page: 84-93
Publish at: 2016-03-01

Perception of Community Health Workers in Indonesia toward Patients with Mental Disorders

10.11591/ijphs.v5i1.4759
Shanti Wardaningsih , Takayuki Kageyama
In Indonesia, there are any community health volunteers called Kader. Although Kaders are members of mental health volunteer, they sometimes show negative attitude to psychotic persons, even they have already got some training about mental health. The aims of this study were to investigate 1) how is Kader's perception compare to the other countries, 2) how will they consult compare to the other countries 3) how is comparison of Kaders’ perception to mental disorder person between trained and untrained. The method of this research is a descriptive explorative using survey study. This study was held on June to September 2013. It was conducted in five districts of Yogyakarta area with 619 respondents. The Questionnaires used contained three sections are follows; Part A is about Demographic Data, Part B two case vignettes (taken from MacArthur Health Module of the 1996 general Social Survey) and Part C about Kaders experiences. The perception of Kader as part of the community is lower than the general residence in the United States and Japan. The comparison between trained and untrained Kaders shown that trained Kaders has better perception toward patient with mental disorder. These results suggest that actual experiences in meeting the cases contributed to the improvement of Kaders’ perception better than the previous mental health training did. It might be Kaders with short experience are explored information Kaders should be trained with more structured curriculum and recruiting Kader is recommended to recruit the young generation.
Volume: 5
Issue: 1
Page: 27-35
Publish at: 2016-03-01

The Effectiveness of Audit Guideline Using Directive Discourse for Control and Prevention of Methicillin Resistant Staphylococcus aureus Infection

10.11591/ijphs.v5i1.4766
Kusbaryanto Kusbaryanto , K. Kuntaman , WJ. Pudjirahardjo
Methicillin Resistant Staphylococcus aureus (MRSA) infection is one of the major problems in the hospital, due to its increasing of prevalence. The aim of this study was to analyze the effectiveness of the Audit Guideline for control and prevention of MRSA infection, using directive discourse on nurses in hospitals. The Audit Guideline was focused on its effectiveness in improving the situation awareness of the nurses. This study was a quasi-experimental study using a pretest-posttest control group design. The population was ward nurses in a hospital. The samples were taken from four medical wards, two wards as the treatment group (25 nurses) and two wards as the control group (28 nurses). The two groups get the training of MRSA infection control and prevention. The training of the guideline of MRSA infection control and prevention using directive discourse was only applied in the treatment group. The analysis of the results of the situation awareness action was conducted, and the result of situation awareness action was improved from 0.8 response to 1.8 response (p = 0.014). This result was significantly difference because of the training using Audit Guideline for MRSA infections control and prevention with directive discourse become a positive reinforcement, the positive driven to stimulate behavior change of the nurses.
Volume: 5
Issue: 1
Page: 70-74
Publish at: 2016-03-01

The Effect of Basil Leaf (Oscimum sanctum) to the Thrombocytes Number on Mice

10.11591/ijphs.v5i1.4757
Yoni Astuti , Rum Wijayanti
Oscimum sanctum is herbal that was spread widely in Indonesia. Oscimum sanctum contains abundant of substances. One of the functions on Oscimum sanctum was anti-thrombocytes effect. This effect is associated with platelet function as a mechanical plug in the vascular injury during the normal homeostatic response. The disruption in thrombocytes function leads to disturb the blood clotting process. Therefore, The aims of the research were to prove the impact of Oscimum sanctum on the number of thrombocytes. This research used mice that divided into 3 groups, as a group I dose 250 mg/day (Oscimum sanctum infusion), group II dose 500 mg/day and the control group. We used clopidogrel as a positive control to determine the effectiveness of anti platelet effect. Data were analyzed by ANOVA showed that the existence of anti-thrombocyte effect in the Oscimum sanctum dose 500 mg/day was significantly different. This result proved that Oscimum sanctum has anti-thrombocytes effect by decreasing thrombocytes number.
Volume: 5
Issue: 1
Page: 12-15
Publish at: 2016-03-01

Determinants of Postpartum Visits in Breastfeeding Mother

10.11591/ijphs.v5i1.4771
Eny Retna Ambarwati , Endang Khoirunnisa , Triantoro Safaria
Puerperal is likely in the occurrence of maternal deaths, and should receive health care during childbirth to be visited by a health worker at least 3 times since birth. This type of research was descriptive quantitative. The quantitative data obtained from questionnaires, using T-test. The research sample was breastfeeding mothers in the village of Balecatur as the intervention group and breastfeeding mothers in the village of Ambarketawang as the control group. There are significant differences of knowledge, behavior in the treatment of post-partum mothers between the intervention group and the control group with significant value in total of <0.05, influenced by the role of cadres, social suport, the role of health workers. Post partum visits conducted by community empowerment strategies, women as the main actors. The role of leaders, social support affect the success of efforts to increase postnatal visits among others disseminating information, provide examples, sensitize, motivate, guide, moving targets and the community and facilitating thus the knowledge, skills and increased public awareness can foster public participation in the postnatal visit.
Volume: 5
Issue: 1
Page: 106-110
Publish at: 2016-03-01

Barriers to Males Involvement in Family Planning Services in Arba Minch Town, Southern Ethiopia: Qualitative Case Study

10.11591/ijphs.v5i1.4762
Alemu Tamiso , Admasu Tassew , Henok Bekele , Zale Zemede , Admasu Dulla
Effective utilization of family planning services are major contributors of improved maternal health. This, in turn, needs adequate involvement of male partners through direct uptake the services and approval of the spouses’ usage. Yet the family planning method utilization as well as male involvement is indicated to be low in Ethiopia. Qualitative case study was conducted in August 2015 in Arba Minch town to identify barriers to male involvement in uptake of family planning services. Open ended, semi-structured questionnaire was used to interview the participants. Four men and four women are purposively selected. Interviews were conducted in audibly private location after verbal consent was obtained from the recruited individuals. All interviews were recorded and transcribed verbatim. The narratives were then translated to English and the responses are aggregated in to nine concepts. The final aggregated data were analyzed using OpenCode 3.4 software based on thematic framework analysis. Total of eight participants (four men and four women) were interviewed where seven are married and one is single. Participants identified that, Perception (or opinion) towards family planning as women’s issue, Sex preference for inheritance and considering children as measure of blessing of and Fear of partner sexual promiscuity and to reduce women’s attractiveness were barriers for male involvement in modern family  planning method. Future interventions aimed at improving family planning services and methods utilization in Arba Minch town and similar settings need to consider these bottlenecks for male involvement.
Volume: 5
Issue: 1
Page: 46-50
Publish at: 2016-03-01

Optimal Power Flow using the Moth Flam Optimizer: A Case Study of the Algerian Power System

10.11591/ijeecs.v1.i3.pp431-445
Bachir Bentouati , Lakhdar Chaib , Saliha Chettih
In this paper, a new technique of optimization known as Moth-Flam Optimizer (MFO) has been proposed to solve the problem of the Optimal Power Flow (OPF) in the interconnected power system, taking into account the set of equality and inequality constraints. The proposed algorithm has been presented to the Algerian power system network for a variety of objectives. The obtained results are compared with recently published algorithms such as; as the Artificial Bee Colony (ABC), and other meta-heuristics. Simulation results clearly reveal the effectiveness and the robustness of the proposed algorithm for solving the OPF problem. 
Volume: 1
Issue: 3
Page: 431-445
Publish at: 2016-03-01

Recycling Waste of Rice Husk to Improve Entrepreneurship Motivation

10.11591/ijphs.v5i1.4767
Fatwa Tentama , Surahma Asti Mulasari , Muchsin Maulana , Rini Anggraeni
The farmers in Indonesia have not maximally taken advantage of the existence of rice husk; therefore the huge number of the husk becomes disturbing waste, which spoils environment. The waste of rice husk is potentially capable of improving the farmers’ economy amidst the people’s lack of knowledge about its potential to commercially produce charcoal briquettes from it, make it a plant growing medium, and change it into manure. This research aims at knowing if the training of recycling waste of rice husk can improve the farmers’ entrepreneurship motivation. The subjects of the research were farmers in groups at Bimomartani village, Ngemplak district, Sleman regency. They were 60 participants divided into experintal and control groups. The planned experiment used untreated control group design with dependent pretest and posttest samples. The paired sample t-test and independent sample t-test were used as the techniques of analysis in this research. The result of t-test on paired sample t-test for the experimental group resulted in the value of t = -6.659 with p = 0.000 (p<0.01), which means there was a significant difference of entrepreneurship motivation before and after the training of recycling rice husk. The analysis for Independent sample t-test resulted in the value of t = 7.411 with p = 0.000 (p<0.01), which means there was a significant difference of entrepreneurship motivation between experimental and control groups. It can be concluded that the training of recycling waste of rice husk was effective in improving the farmers’ entrepreneurship motivation.
Volume: 5
Issue: 1
Page: 75-83
Publish at: 2016-03-01
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