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This study presents an advanced approach to multi-class skin lesion classification by leveraging an ensemble model comprising the Inception-V3, ResNet-50, and VGG16 architectures. The classification task focuses on categorizing skin lesions into distinct classes, including Melanoma, basal cell carcinoma (BCC), and squamous cell carcinoma (SCC), using the ISIC dataset, a comprehensive collection of dermoscopic images. In order to properly balance the dataset, the oversampling strategy is utilized, as some lesion types are underrepresented due to inherent imbalances in the dataset. By ensuring that the model is trained on a more representative dataset, this balancing improves the algorithm's capacity to categorize all lesion types properly and impartially. By combining the complementary features of ResNet-50, Inception-V3, and VGG16, the ensemble technique improves the overall classification performance. ResNet-50 is chosen for its deep feature extraction capabilities, which help capture fine details in lesion patterns. Inception-V3 is selected for its multi-scale processing, allowing it to effectively analyze lesions at varying resolutions and sizes. VGG16 is included due to its simple yet highly effective architecture for image classification tasks. The ensemble model with data augmentation significantly outperforms individual models in skin lesion classification for both the original and balanced ISIC datasets regarding accuracy, precision, recall, and F1-score. This method offers a robust solution for skin lesion classification, contributing to more accurate and reliable diagnostic tools in dermatology.

This study examines the transformation of mihrab design in contemporary mosque architecture in the modern era through a literature review approach. The mihrab, as an essential element in mosque architecture that marks the direction of the qibla, has undergone significant evolution in its design and application alongside the development of contemporary architecture. Using a descriptive qualitative research method, this study analyzes various sources of literature related to the development of mihrab design, including academic journals, books, and architectural documents. The findings of the study reveal that the transformation of mihrab design not only involves visual changes but also a reinterpretation of deeper symbolic and philosophical meanings. While there are views questioning the compatibility of contemporary designs with Islamic values, this study finds that innovations in mihrab design enrich the architectural heritage of Islam by creating a new visual language that still honors its essential function as a marker of the qibla direction. This research contributes to understanding how Islamic architecture can adapt to modernity while preserving its spiritual values.

The Pekojan Mosque in Semarang is an example of Islamic architecture that is rich in historical and cultural value. This article aims to analyze the architectural elements contained in this mosque, and how these elements reflect the cultural and spiritual identity of the local community. Through a qualitative descriptive approach, this study identifies the physical and non-physical elements that form the characteristics of the Pekojan Mosque.

Consumer demand for fast, accurate, and precise information has accelerated the adoption of information technology (IT) as a strategic tool in this era of globalization. The implementation of IT governance in public services plays an important role in improving efficiency, productivity, and service quality, by meeting community needs effectively. This study aims to evaluate IT governance in the public service sector through the implementation of international standards such as COBIT, ITIL, and ISO/IEC 20000 which focus on risk management, information security, and service efficiency. This research method uses a qualitative approach by analyzing related frameworks and regulations, and identifying factors that support and hinder effective IT governance. The results of the study indicate that the implementation of IT governance in public services faces significant challenges, including resistance to change, limited resources, and lack of readiness to adapt to changes in community values. The success of IT governance depends on the synergy between organizational policies, information strategies, and information architecture standards applied. In addition, the ITIL-based service model that emphasizes the integration of People, Process, Products, and Partners (4P) components has proven effective in improving the quality and satisfaction of public service users. This study recommends increasing inter-agency collaboration, improving technology infrastructure, and increasing digital literacy to ensure responsive, accountable, and sustainable IT governance in the public service sector.

Information technology (IT) has developed rapidly and is known to be the most important part of all aspects of life, such as education, business, and also government. Information technology allows organizations to increase efficiency and create innovative solutions and has an important role in improving the accountability of public services, especially in the aspect of government. The development of technology in the government aspect has an important role. One of the innovations in Indonesia is the SRIKANDI (Integrated Dynamic Archives Information System) application. SRIKANDI is an application developed to digitize archive and document management in government. The development of enterprise architecture in government institutions is crucial in ensuring that information systems can support processes effectively and efficiently. This research aims to develop enterprise architecture using the TOGAF (The Open Group Architecture Framework) method on the SRIKANDI application at the Baturraden District Office. The SRIKANDI application, which is an Integrated Dynamic Archive Information System, plays an important role in digitizing government archive management. The TOGAF method was chosen for its comprehensive approach in designing, implementing, and managing information system architecture. 

The research explores the role of Semarang Old Town Museum in the context of architecture and art aesthetics, which are important elements in the preservation of local cultural history, this study aims to understand how museums also become a medium for historical education and foster historical appreciation to urban communities. The Museum of the Old City of Semarang not only functions as a historical exhibition space, but also as an iconic identity of the community through the building design and aesthetics of the building that is very attractive. Through architectural elements and aesthetic rules of art with a classic building style using brick matrial that can strengthen the attractiveness of tourists and culturists on the importance of awareness and the importance of preserving historical landmarks. Therefore, this museum plays a significant role in shaping the image of the old city of Semarang, becoming one of the cultural and artistic tourist destinations.

Indonesia as an archipelago country must pay attention to its policies and their impact on marine sustainability. This also includes its membership in various regional organizations, including the Indian Ocean Rim Association (IORA). Therefore, this article discusses the implementation of Indonesian policies with the blue economy concept which is studied through membership in IORA. This article aims to examine the influence of the implementation of the blue economy on the sustainability of Indonesia's seas. The method used is a literature study carried out with a qualitative-descriptive approach using maritime diplomacy and blue economy theories. The data used in this paper is secondary data which includes sources from books, journals, trusted and relevant websites as well as official and trusted news. There are challenges in implementing the blue economy in Indonesia, such as robbery, piracy and illegal fishing which can have a negative impact on marine sustainability, as well as marine pollution and unsustainable marine exploitation. So through maritime safety & security which includes piracy, armed robbery at sea, terrorism, decreasing marine sustainability, and exploitation of marine resources which are IORA's priority areas. The results of this research show that there are positive implications of Indonesia's blue economy concept with other IORA member countries for the sustainability of Indonesia's seas. 

Behavioral architecture is an essential approach in designing early childhood play spaces. Play is one of their favorite activities and supports social education. However, in Medan City, many playgroups do not support children's play activities regarding space, function, and a sense of safety and comfort for children and parents. Therefore, a building is needed that can accommodate various socially educational play activities for children in Medan City. The proposed children Activity Center with the concept of Behavioral Architecture is designed to provide complete, comfortable, safe, and functional play facilities, as well as spaces that are meticulously adapted to the activities in it, ensuring that children do not feel bored and that the center meets their needs

Older people sometimes become a new problem for a family or government. These problems are the unavailability of access to health care, the lack of old age insurance, and the social support from the family to care for them. The aging process certainly has an impact on all aspects of life, especially health because with increasing age, the function of the body's organs will decrease both due to scientific factors or disease. The decreased function of the body's organs makes the elderly limited in carrying out activities because of the limited energy they have. Through the design of the Nursing Home with the Biophilic Architecture approach, it can help the elderly from feeling lonely and so that their illness does not get worse and it is hoped that they can recover and continue to carry out more productive activities. So this design can be a social space for the elderly who are able to respond to the conditions and activities of the elderly.

The planning for a Culinary Arts Gallery in Binjai City is intended as a forum for culinary and cultural diversity in Binjai City to be better known and developed. Binjai City is a city with various ethnicities and cultures in it. This cultural diversity comes from the city's residents, including tribes; Malay, Toba Batak, Karo, Chinese, Javanese, and other tribes. The cultural diversity of the city of Binjai has resulted in the growth of various cultural characteristics in the form of culinary specialties in the city of Binjai such as tau kua heci and Binjai's typical rambutan cake which gives the city its identity. Furthermore, the cultural and culinary diversity of the city of Binjai has the potential to be developed in terms of economics and tourism. Therefore, it is necessary to have a planning study for a Culinary Arts Gallery in Binjai City that can accommodate the culinary arts of Binjai City so that it is easier to introduce it to the wider community in the form of a Culinary Arts Gallery. This plan is intended to accommodate culinary activities and functions as a forum for arts and cultural activities for the people of Binjai City.  

Teachers, lecturers, students, and the community use the library as a knowledge and information resource in the context of implementing learning. A library is often thought of as a sizable book collection that is kept for the express purpose of gathering, maintaining, and dispensing books. Students can look up and gather the most recent scientific data in the library, which aids them with their assignments. People's preference for instant information via social media, especially students, is one of the reasons reading is becoming less popular these days. Aside from the fall in students' interest in reading, two other reasons why libraries are silent are their incapacity to adapt to the changing times and their failure to satisfy the demands of students. As a result, Balige must have a public library that can serve everyone in the city and can meet the demands of community activities. This Public Library design uses a contextual architectural approach to integrate various elements of the surrounding building facades.

Foodstuffs are raw materials in the form of agricultural, vegetable and animal products that are used by the food processing industry to produce a food product. Food ingredients consist of plant foods and animal foods. Food is the most basic need for human resources in a country. Food prices sometimes experience erratic increases or decreases. The aim of this research is to determine the results of food price predictions in the Deli Serdang Regency area using the Backpropagation algorithm. The data used in this research is food price data from 2020 to 2023 which comes from the official National Food Ingredients website. This research uses the Backpropagation algorithm artificial neural network method which uses several architectural models and the results of this test will produce the best accuracy values. The test results show that the best architecture for research on implementing the backpropagation algorithm in predicting food prices in Deli Serdang Regency is 2-10-1 with an accuracy of 87.5% and the 2-3-8-1 architecture with an accuracy of 87.5%.

. The preservation of static archives in the Office of Religious Affairs (Kantor Urusan Agama/KUA) plays a crucial role in safeguarding the legal and administrative evidence of marriage for the community. However, many marriage records created between 1978 and 2002 at the Office of Religious Affairs of Medan Labuhan Subdistrict have experienced physical deterioration due to age, storage limitations, and environmental factors. Based on archival observations, out of 51 archival bundles (2,550 records), 76.4% were categorized as damaged, while only 23.5% remained in good condition. This condition highlights the urgency of implementing a systematic digitalization strategy as an effort to preserve static archives and ensure long-term access. This study aims to analyze the implementation of marriage archive digitalization as a preservation strategy and to examine its effectiveness in maintaining the authenticity, integrity, and accessibility of archival records. The research employs a qualitative descriptive approach through observation, documentation analysis, and field-based data interpretation. The findings indicate that digitalization contributes significantly to minimizing physical handling, preventing further deterioration, improving retrieval efficiency, and strengthening archival security. Nevertheless, several challenges were identified, including limited technological infrastructure, lack of standardized procedures, and human resource constraints. The study concludes that digitalization is not merely a technological transition but a strategic preservation effort that requires institutional commitment, proper archival management standards, and sustainable planning. By integrating digital preservation practices into archival governance, the Office of Religious Affairs can enhance the protection of marriage archives as static archives and ensure their continued legal and administrative value for future generations.

Energy efficiency has become a critical focus in manufacturing plants due to rising operational costs and increasing environmental concerns. The growing importance of energy management is driven by the need to reduce energy consumption, lower emissions, and enhance overall operational efficiency. Traditional maintenance practices, such as reactive and preventive maintenance, often lead to unnecessary downtime, high repair costs, and inefficient energy usage. In contrast, predictive maintenance (PdM), supported by Internet of Things (IoT)-enabled sensor networks, offers a proactive approach to minimizing energy waste by predicting equipment failures before they occur. This study develops a predictive maintenance framework using IoT-based sensor networks to optimize energy usage and reduce energy losses in manufacturing plants. The research begins with an overview of IoT sensor network architectures and their applications in industrial automation, including sensors such as temperature, vibration, and pressure sensors. It explores predictive analytics techniques, such as machine learning and artificial intelligence, used for failure prediction, which are key to enhancing energy efficiency. The study emphasizes how predictive maintenance contributes to industrial sustainability by reducing carbon footprints and optimizing energy consumption. The research methodology involves the installation of IoT sensors in critical machinery, real-time data analysis using machine learning algorithms for failure prediction, and energy consumption measurement before and after implementing IoT-based interventions. The results show significant improvements in energy consumption efficiency and operational productivity. Predictive maintenance led to reduced unplanned downtime, increased equipment reliability, and a more sustainable manufacturing process. However, challenges such as sensor integration, initial setup costs, and data security concerns were identified. The study concludes with recommendations for integrating IoT-based predictive maintenance systems into manufacturing plants to further optimize energy usage and promote sustainability.

Turtles are integral components of two ecosystems, both coastal and marine. They play a crucial role in maintaining a healthy marine ecosystem. A nutritious sea fosters millions of fish, serving as a significant protein source for humans. However, this is increasingly at odds with the presence of turtles, which are gradually becoming endangered. This issue stems from various factors, including large-scale commercial fishing activities near turtle nesting sites and worsening climatic changes. These factors have the potential to disrupt the balance of marine ecosystems. The approach adopted in this design is an ecological architecture approach. It aims to restore turtle habitats in coastal conservation areas to attract nesting turtles and sustainably develop tourist facilities that harmonize with the surrounding environment.

The rapid advancement of modern computing has driven extensive research on numerical algorithms for solving large-scale systems of linear equations. Classical methods such as LU decomposition, Jacobi, and Gauss–Seidel have been revisited and optimized to leverage parallel architectures, GPUs, and even quantum platforms. Recent studies demonstrate that optimized algorithms can reduce computation time by more than 50% while maintaining high accuracy in solving high-dimensional problems. LU decomposition, particularly in its parallel and GPU-based implementations, has shown superior performance in batch processing and industrial-scale simulations. Meanwhile, iterative methods such as Jacobi and Gauss–Seidel remain relevant due to their flexibility in numerical modeling, with further developments for block matrix systems, finite element applications, and FPGA architectures. The integration of these enhanced algorithms is not only beneficial for the advancement of scientific software development but also supports practical applications in engineering simulations, large-scale data optimization, and machine learning. Therefore, an integrative review of modern numerical algorithm developments is crucial in bridging the gap between industrial demands and research progress in scientific computing.

In the era of digitalization at universities, one of which is Prima Nusantara University, managing student data has become an important aspect for higher education institutions to support campus administration activities. This research aims to design a student biodata entry information system that is efficient, integrated and easy to access. This system is designed to automate the registration process and manage student data, which was previously done manually or Google from in collecting student biodata, thereby reducing the risk of errors and duplication of data. A prototype student biodata entry information system that allows users to input, update and manage student data. real-time integrated at Prima Nusantara University, especially for new student data, for campus administration purposes, data is usually collected manually, so I am interested in creating an information system for new student data entry in searching for student data on the Prima University campus. Archipelago

The development of information and communication technology in Indonesia has grown significantly over the past few years. Thus, there are many opportunities to digitize the business process of a business or business ecosystem. One of them is in the field of digital economy by adapting business processes into a digital platform, such as designing an e-commerce platform in a village that has commodities in it so that related commodities can increase the visibility of their products. This research uses Belega Village as a case study location considering that this village has a commodity in the form of bamboo crafts. Research was conducted to build a web-based bamboo handicraft e-commerce application that would be expected to increase product visibility. The application itself is built using the Agile Development method using the sprint model. This application is built with a microservice architecture with Express.js technology as a backend service and Next.js to create client applications and PostgreSQL as a DBMS. The result of this research is a web-based e-commerce application that is expected to increase the visibility of products from bamboo crafts from Belega Village.

Rapid urbanization in major cities has led to the decreasing availability of green spaces, exacerbating urban challenges such as the Urban Heat Island (UHI) effect, high energy consumption in buildings, and air pollution. In response, green architecture innovations like green roofs and vertical farming present opportunities for reducing carbon footprints and improving urban sustainability. This study explores the potential for life-cycle carbon footprint reduction through the integration of green roofs and vertical farming systems in high-rise buildings, focusing on energy savings, environmental impact, and air quality improvements. Using Life-Cycle Assessment (LCA) methodology, the research evaluates carbon emissions reduction, operational energy savings, and ecosystem benefits from different building scenarios. Simulation models were developed for conventional high-rise buildings and those incorporating green roofs and vertical farming. EnergyPlus, SketchUp, and SimaPro software were used for energy consumption calculations and carbon emissions modeling. The study analyzes various intervention scenarios-baseline (no vegetation), green roof only, vertical farming only, and a combined system-based on tropical climate data from cities like Jakarta, Surabaya, and Kuala Lumpur. Results reveal that the integration of both green technologies significantly reduces cooling demand, lowers CO₂ emissions, and improves urban microclimates by reducing surface temperatures and enhancing air quality. Policy recommendations and guidelines for adopting green construction practices in tropical regions are provided, alongside suggestions for future research on optimizing these technologies, conducting economic modeling, and evaluating multi-building approaches at a district scale.

The Institute of Fine Arts and Design is an art school that accommodates high levels of art study program enthusiasts in developing skills in the arts, producing creative and appreciative graduates. This study explores design aspects, such as function, site planning, design, and structure related to the art institute as a basis for design development analysis. The method used is a qualitative method through literature studies and field observations. Literature studies are used to analyze data related to the function of similar buildings and similar themes, namely metaphorical architecture. Field observations are conducted to observe and collect data related to the activities of the Fine Arts and Design Institute. The study concludes that in the design of fine arts and design institutes, creative design is needed through a metaphorical architecture approach. Metaphor architecture was raised as a theme because of the application of the principle of transferring information from one subject to another. The application of this concept is demonstrated by the form of the building mass series and the building facade with the play of secondary skin shapes.