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Perbandingan Performa Bandwidth CV, AICc, dan BIC pada Model Geographically Weighted Regression (Aplikasi pada Data Pengangguran di Pulau Jawa)
Get PDFUnemployment is a social phenomenon, a problem faced by every region in Indonesia. One way that can be carried out to reduce the unemployment rate is analyzing the factors that affect the open unemployment rate. Rather than using linear regression analysis, Geographically Weighted Regression (GWR) was preferable since it gave a better representative model by effectively resolve spatial heterogeneity problem which is generally exist in spatial data of social phenomenon. Spatial heterogeneity show that linear regression analysis will give a misleading interpretation results in some locations. GWR solve this problem by generating a single model in each observation location so the regression parameters can be different at each observation location. Parameter estimation in the GWR model uses weights based on the location of each observation so that the estimate model applies only to this location. The weighting determination depends on the bandwidth value. Bandwidth is a circle with radius ℎ from the center point of the observation location which is used as the basis for determining the weight of each observation location. Smaller bandwidth value will result a large variance. It can happen because when the bandwidth is very small, there will be a small number observations in the radius h, which can makes the estimate model is very rough (undersmoothing) because it uses few observations, and vice versa. Therefore, choosing the optimum bandwidth is very important in determining the weights where it can affect the accuracy of the model formed. This study aims to compare the performance of the GWR model using the Cross Validation (CV), Akaike Information Criterion Corrected (AICc), and Bayesian Information Criterion (BIC) bandwidth methods in the formation of Fixed Gaussian Kernel weighted function which is applied to unemployment data in districts/cities in Java. The results show that the GWR model with CV bandwidth is better at explaining district/city unemployment data on Java Island in 2020 which it has the smallest RMSE value, 1.0904, and the largest R2 and Adjusted-R2 values, namely 0.8539011 and 0.7937159, respectively
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No full textThe Dynamics of State-Owned Assets Insurance Regulation Drafting from Regulation Theory Lens Fakhri Nurfaiz & Taufik RaharjoAlternative of Soil Improvement Methods on Organic Soil Using Preloading and Vertical Piles for Embankment with Varied Heights. Case Study: Construction of Batanjung Port Access Road in Pulang Pisau Regency, Central Kalimantan Dedy Manudianto, Noor Endah & Hardy Pangihutan Siahaa
Effect of Empty Bunch Fruits Biochar for Growth of Pakcoy (Brassica rapa) in Heavy Metals Contaminated Soil
No full textProduction of Crude Palm Oil (CPO) generates waste, one of which is Empty Fruit Bunch (EFB). EFB has a high potential for further utilization due to its carbon and nitrogen content. The abundant carbon content can be utilized and further processed into a value-added product such as biochar. This study aims to investigate the influence of waste mixtures from various parts of the oil palm and the effect of temperature in furnace pyrolysis and microwave pyrolysis methods on biochar production for remediating and reducing heavy metal pollution in soil. The preparation of oil palm waste materials consists of EFB, trunks, and oil palm shells, which are then crushed and refined. Through proximate and ultimate testing, two parts of oil palm waste with the highest carbon content were obtained and used in biochar production with a waste ratio of 80:20. Biochar production was carried out using the furnace pyrolysis method at temperatures of 200, 300, and 400°C for 3 hours. The biochar was added to soil media planted with Pakcoy (Brassica rapa). The effectiveness of biochar in the remediation of heavy metal pollution in soil was analyze
Analysis on the Livelihood Vulnerability of Lift Net Fisher Households, Tapanuli Tengah, Sumatera Utara
Get PDFFishermen are a group of people whose livelihood is very dependent on the condition of the marine ecosystem. Ecological damage in their waters caused by the impact of climate variability and illegal fishing activities causes their livelihoods to be threatened. This research uses a mixed research approach, namely quantitative and qualitative. Quantitative data was obtained through surveys of respondents with the help of questionnaires while qualitative data was obtained through in-depth interviews. The research found that lift net fishing households were in a vulnerable condition with a value of +0.23. This research also reveals that fishing households implement natural resource-based and non-natural resource-based livelihood strategies. These efforts are made so that fishermen can live and exist in society
Ultrasound Image Synthetic Generating Using Deep Convolution Generative Adversarial Network For Breast Cancer Identification
Get PDFBreast cancer is the leading cause of death in women worldwide; prevention of possible death from breast cancer can be decreased by early identification ultrasound image analysis by classifying ultrasound images into three classes (Normal, Benign, and Malignant), where the dataset used has imbalanced data. Imbalanced data cause the classification system only to recognize the majority class, so it is necessary to handle imbalanced data. In this study, imbalanced data can be handled by implementing the Deep Convolution Generative Adversarial Network (DCGAN) method as the addition of synthetic images to the training data. The DCGAN method generates synthetic images with feature learning on a Convolutional Neural Network (CNN), making DCGAN more stable than the basic generative adversarial network method. Synthetic and original images were further classified using the CNN GoogleNet method, which performs well in image classification and with reasonable computation cost. Synthetic ultrasound images were generated using a tuning hyperparameter in the DCGAN method to adjust the input size on GoogleNet for imbalanced data handling. From the experiment result, the implementation of DCGAN-GoogleNet has a higher accuracy in handling imbalanced data than conventional augmentation and other previous research, with an accuracy value reaching 91.61%, which is 1% to 4% higher than the accuracy value in the previous method
IDENTITY MEANING OF A GAPURA WRINGINLAWANG AT THE HINDUISM-SEMERU LUMAJANG TEMPLE
Get PDFSemiotics as a science that studies signs have a wide range of knowledge and one of them is in the field of Architecture which is a result of the cultural process of society because architectural works are the embodiment of the life of that society. Semiotics as the science of signs is capable of being a tool in tracing cultural relations in architectural objects or works. Pura Mandharagiri Semeru Agung as an architectural work that carries Balinese Hindu culture is an architectural work located at the foot of Mount Semeru, to be precise in an area called Senduro in Lumajang district. An architectural object in the form of a gate with the name Wringinlawang stands proudly at the entrance to the area. Wringinlawang in shape and color has a style that is different from the style in the temple area. Therefore, there is a need for a study related to the existence of the wringinlawang object in the middle of the temple area which carries Balinese Hindu culture. To trace the process of wringinlawang's existence and its meaning to the surrounding community, semiotics will be the main tool in tracing the sign, which in this case is the Gapura Wringinlawang. The purpose of this research is to explore the factors influencing the meaning of the Gapura Wringinlawang and to explore the relationship between the signs that are formed. The method used in this research is qualitative research using interview data alongside a literature review. The results of Charles S. Pierce's semiotic study show that the Gapura Wringinlawang contains a symbol of cultural identity for the Senduro community around the temple building. The culture in question is Javanese culture which is manifested through the building style used in the Gapura Wringinlawang building because of the context of the location
ANALYSIS OF DETERMINING PRIORITY OF ROAD HANDLING PROGRAM IN THE REGION OF KEDIRI ROAD AND BRIDGE MANAGEMENT DEPARTMENT OF HIGHWAYS EAST JAVA PROVINCE USING MULTI CRITERIA ANALYSIS (MCA) METHOD
Get PDFSteady road conditions determine the smooth running of land transportation to support economic activity. To achieve steady road conditions requires a good road management program. The government, through the agencies appointed as road administrators, needs funds to maintain the stability of the road itself. The process of budgeting funds for the implementation of the road through a process of proposals, discussions and determination of the budget. Determining the priority of the proposal requires a long discussion. The Provincial Government of East Java through the Department of Public Works of Highways has an important role in the process of handling provincial roads. Budget limitations, both Regular APBD funds and special allocation funds and other funds, create a distinct challenge for road administrators in determining an effective and optimal road management program. Based on previous research studies, priority determination of road handling can be carried out using Multi Criteria Analysis (MCA). Priority determination criteria used in this study are technical criteria which include: existing traffic conditions, road stability conditions, degree of saturation, travel speed, and travel time; financial and economic criteria which include: BOK, Time Value, BCR, and NPV. In this study it will be seen based on the results of prioritized maintenance handling found at Link 176 Kediri - Blitar City Boundary for LHR technical criteria has a difference in value of 3,190 cur/hour, with an average road condition of 27.12%, difference in degree of saturation of 0.346, the difference in travel speed is 3.409 km/hour, the difference in travel time is 3.661 minutes and for economic criteria BOK has a difference in value of Rp. 8,662,656,168, the difference in the BCR value is 0.60 and the difference in the NPV value is -Rp. 8,382,143,904
Effectiveness of Adding Different Types of Vitamin C in Improving the Quality of Artemia salina sp.
Get PDFArtemia is a natural food that contains pigments (canthaxanthin), protein, vitamin C and some essential fatty acids for the growth of fish and shrimp. Artemia contains vitamin C, but it is still suspected that additional vitamin C is needed for larval development, gonad maturity and gamete quality. The purpose of this study was to analyze the effectiveness of vitamin C (ascorbic acid) absorption in the enrichment of Artemia sp. The stocking density of Artemia cysts was 2 g per 2 liters of water with a dose of Vitamin C of 100 mg/liter. The hatching process produced Hatching Percentage (HP) of 54.22% and 53.69%. The method used was laboratory experiment, analyzing Vitamin C absorption using UV-Vis Spectrophotometry method at 450-750 nm wavelength followed by BNT test. UV-Vis spectrophotometer method to determine the level of vitamin C absorbed during the artemia immersion process. Vitamin C absorption concentration after soaking process for 6 hours obtained an average of 0.8640 ppm and 0.8642 ppm. The results of the BNT test showed results with a value of 0.05, so the second type of Vitamin C applied to Artemia was not significantly different
Design a Phinisi-Type Tourist Ship to Increase Tourist Interest in Vacationing at Taka Bonerate National Park
Get PDFTourism ship with the Phinisi ship concept for the Selayar Islands tourist area are designed to increase the number of tourist attractions in the area. With beach tourism destinations and coral reefs, the Selayar region is very possible to become an alternative tourist destination in Indonesia besides Bunaken, Raja Ampat, Labuan Bajo, and the island of Bali. This ship is designed with wood materials and carries the theme of the traditional Phinisi ship which is the hallmark of ships made by the Bugis-Makassar tribe since 3000 years ago and has been recognized by UNESCO as one of the world's cultural heritage (Art of Boatbuilding in South Sulawesi). This study aims to obtain a tourist ship design that can be an attraction for tourists to vacation in the Selayar Islands. The method used in this study is the parent ship design approach method, this method is very commonly used in the ship design process, namely by using a comparison ship as a reference in the design of a new ship. The main ship dimensions obtained from this research are Loa = 26 m, B = 6.1 m, H = 2.48 m, T = 1.6 m, Vs (max) = 10 Knots, and Crew = 6 persons. The room on the ship is made like a classy hotel room and other services can pamper tourists
An Analysis of Service Capacity at Ambon Port
Get PDFThis research aims to determine container services, to determine projections and the need for container facilities in relation to traffic projections. This study used qualitative descriptive analysis, namely a method that explains in the form of numbers from the growth of activities. This research was conducted with interviews, library research and documentation. The results of the study show that the flow of container ships has increased. In 2020 it was projected to be 355 calls. It will continue to increase until it is projected to be 560 calls in 2029. Meanwhile, the projected realization of the flow of goods in containers in 2020 was 1,243.164 tons, and the realization of containers is predicted to be 2,015,767 tons. The Berth Occupancy Ratio can be maintained at a maximum of 70% according to the standards, so the length of the wharf at Ambon Port where in 2021, the flow of containers has reached 128,662 TEUs with the number of container ships 377 Calls, the length of the container reached 352 meters. As for the storage yard, the required storage area is 42,316 m2. As for the storage yard at Ambon Port, until 2029, the required storage area is 42,316 m2.