UMA - Open Access Journals (Universitas Medan Area)
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CatBoost Algorithm Implementation for Classifying Women's Fashion Products
Get PDFThe rapid growth of the women's fashion industry in the digital era has intensified the need for data-driven approaches to understand customer preferences. This study aims to classify women’s clothing products based on customer reviews by applying CatBoost, a gradient boosting algorithm known for its strong performance with categorical features. The dataset, consisting of 23,486 entries and 11 attributes, was obtained from Kaggle and processed through data cleaning, normalization, exploratory analysis, and model training. Hyperparameter optimization was conducted using Grid Search. Model performance was evaluated using accuracy, precision, recall, and F1-score, and benchmarked against four traditional classifiers: Decision Tree (C4.5), Naïve Bayes, Support Vector Machine (SVM), and K-Nearest Neighbor (KNN). The results show that CatBoost achieved an accuracy of 93.70%, an F1-score of 0.9606, and an AUC of 0.9691, indicating excellent and balanced classification performance. This study demonstrates the effectiveness of CatBoost in handling customer review data and contributes to the development of intelligent product classification systems in the fashion industr
POLITIK KANDIDASI CALON KEPALA DAERAH DI PARTAI POLITIK
No full textPolitical recruitment within the Party can be less transparent. The recruitment process sometimes does not pay attention to the quality of the candidates. This study aims to analyze political recruitment related to the quality of candidates in the 2017 Regional Elections in Tasikmalaya City. The theory used in this study is the candidate quality theory (Jacobson & Kernell, 2006). This study uses a qualitative method with a phenomenological study approach. Data was collected through in-depth interviews, document studies, and literature studies. The informants in this study are PAN elites and cadres in TasikmalayaCity, DPW/DPP PAN cadres, and political observers in Tasikmalaya City. The study results explain that PAN deputy mayor candidates have low candidate quality. The findings in this study explain that PAN recruits candidates for mayor and deputy mayor of Tasikmalaya differently. The candidate for mayor of Tasikmalaya from PAN is recruited based on the quality of suitable candidates, while the candidate for deputy mayor is recruited due to financial strength. The difference was made because the candidate's considerable financial strength affected the party leadership. This resulted in the split support of party cadres in the regional elections. Seeing such problems, a transparent and merit-based recruitment process is needed. This research further strengthens the idea that the political recruitment process dramatically affects the internal dynamics of political parties. Rekrutmen politik adalah "taman rahasia" di dalam partai, proses rekrutmen terkadang tidak memperhatikan kualitas kandidat. Penelitian ini bertujuan untuk menganalisis rekrutmen politik dari segi kualitas kandidat dalam Pilkada 2017 di Kota Tasikmalaya. Teori yang digunakan dalam penelitian ini adalah teori kualitas kandidat (Jacobson dan Kernell, 2006). Penelitian ini menggunakan metode kualitatif dengan pendekatan studi fenomenologis. Pengumpulan data dilakukan melalui wawancara mendalam, studi dokumen, dan studi pustaka. Informan dalam penelitian ini adalah elit dan kader PAN di Kota Tasikmalaya, kader DPW/DPP PAN, dan pengamat politik di Kota Tasikmalaya. Hasil penelitian menjelaskan bahwa calon wakil walikota PAN memiliki kualitas calon yang rendah. Temuan dalam penelitian ini menjelaskan bahwa PAN merekrut dengan pola asimetris untuk calon walikota dan wakil walikota di Tasikmalaya. Pola asimetris dilakukan karena tekanan dari pimpinan partai yang dipengaruhi oleh kekuatan finansial kandidat yang besar. Temuan lainnya adalah dampak penerapan pola asimetris dalam rekrutmen oleh partai politik adalah pembagian dukungan kader partai dalam pilkad.  
Implementasi Arsitektur Naratif Pada Ruang Di Museum Sepuluh Nopember
Get PDFMuseum Sepuluh Nopember in Surabaya is dedicated to commemorating the heroic events that occurred during the Battle of Surabaya in 1945. As a place that preserves and coneys this significant history, the museum holds a great responsibility to present a historical narrative that is not only informative but also impactful, capable of immersing visitors in the spirit and atmosphere of past events. This research aims to identify the application of narrative architecture in creating a spatial ambience that supports the stroytelling of history at the Museum Sepuluh Nopember. The research method involves direct observation, literature analysis on narrative architecture theory, and the museum’s interior design. The findings indicate that the use of narrative architectural elements such as spatial arrangement, lighting, materials, and layout design can significantly enhance the visitor experience and effectively support the delivery of historical stories
Implementasi Karakteristik Eko Arsitektur pada Fasad Rumah Susun
Get PDFBuilding’s facade plays a crucial role in conveying a building's function and reflecting its identity. In apartment buildings, the facade serves as an aesthetic element to create an appealing building image, regulates light and airflow for inhabitant comfort, and provides protection against weather and environmental pollution. Indonesia's tropical climate and air pollution necessitate the adoption of Eco-Architecture in urban areas, especially in densely populated regions like loft complexes. By implementing these principles, facades can enhance environmental sustainability, improve thermal and visual comfort, and strengthen architectural expression. This study uses a qualitative descriptive analysis to explore the relation between eco architecture principles and the appearance of apartment building facades so it can enhance both environmental sustainability and aesthetic value. The research discusses the concept and implementation of apartment building designs that integrate eco-architecture principles to foster sustainable and environmentally friendly living environments. It aims to inspire architects, designers, and developers to create apartment building facades that combine sustainability with attractive aesthetic features
Adaptive Employees Performance: Competency Development and Work Balance Through Agile-Era Digital Innovation
Get PDFThis study analyzes the direct effects of competency development and work balance on adaptive employees' performance and digital innovation as a mediating variable among employees. Using an interpretative quantitative approach, primary data was collected through a Likert scale questionnaire Likert scale questionnaire distributed to 130 employees who were selected based on their relevance to the agile and digital environment. sampling based on their relevance to an agile and digital environment. Data analysis was conducted using partial least squares structural equation modeling (PLS-SEM) using SmartPLS software. The results showed that competency development and work balance did not significantly affect adaptive employees' performance. However, digital innovation significantly mediates the relationship between competency development and adaptive employee performance. In contrast, digital innovation does not significantly mediate the relationship between work balance to adaptive employee performance. These findings suggest that improving adaptive employee performance will be more effective if it focuses on improving competency development that is aligned with digital innova tion in the agile era
Analisis Integrasi Spasial Pasar Cabai Merah di Provinsi Sumatera Utara
Get PDFNorth Sumatra Province is one of the largest red chili producing provinces in Indonesia. Red Chili production is spread across several districts and meets the needs of markets in North Sumatra. Production and differences in distance between producer areas and markets affect prices at the consumer level. Fluctuations in the price of Red Chili often occur so that this commodity is one of the contributors to inflation in North Sumatra. Inflation is measured from price indicators in 5 cities, namely Medan, Pematang Siantar, Sibolga, Padangsidimpuan, and Gunungsitoli. The purpose of this study was to determine the development of Red Chili production and prices and to analyze the integration of prices between Red Chili producer markets in 5 (five) cities in North Sumatra Province. The benefits of this study are as information for the North Sumatra Provincial Government in making policies. This study uses the descriptive analysis method and the Vector Error Correction Model (VECM) method from weekly data for a period of 3 years, namely the period 2021 to 2023. The results of the study show that the comparison between production and demand for Red Chili in North Sumatra is in a surplus condition. Prices between the Red Chili producer markets in Medan City, Pematang Siantar City, Padang Sidempuan City, Sibolga City and Gunung Sitoli City are perfectly integrated. There is a short term relationship between the price of red chilies in Medan and Gunung Sitoli, Pematang Siantar and Sibolga. Price of red chilies in Padang Sidempuan with Sibolga, Medan and Pematang Siantar. There is a long-term relationship between the price of red chilies in Gunung Sitoli and Medan, Padang Sidempuan, Pematang Siantar and Sibolga. The relationship that occurs between the red chili price variable is a causal relationship, indicating that there is one-way causality between the red chili price variable in Medan and the price of Pematang Siantar chili and the price of Sibolga chili.Salah satu Provinsi yang merupakan penghasil cabai merah terbesar di Indonesia adalah Provinsi Sumatera Utara. Produksi Cabai Merah yang tersebar di beberapa kabupaten, akan mempengaruhi pasokan pasar Cabai merah. Cabai Merah merupakan salah satu komoditas pertanian penyumbang inflasi di Sumatera Utara, indikator harga dari 5 Kota yaitu Medan, Pematang Siantar, Sibolga, Padangsidimpuan, dan Gunungsitoli. Tujuan penelitian adalah untuk mengetahui perkembangan produksi dan harga Cabai Merah serta menganalisis integrasi harga antar pasar produsen Cabai Merah pada 5 (lima) Kota di Provinsi Sumatera Utara. Penelitian ini menggunakan metode Analisis deskriptif dan metode Vector Error Correction Model (VECM). Hasil penelitian menunjukkan bahwa secara keseluruhan antara produksi dan kebutuhan Cabai merah di Sumatera Utara, maka kondisiya masih Surplus. Harga antara pasar produsen Cabai Merah pada Kota Medan, Kota Pematang Siantar, Kota Padang Sidempuan, Kota Sibolga dan Kota Gunung Sitoli terintegrasi secara sempurna. Terdapat hubungan Jangka Pendek antara harga Cabai merah di Medan dengan Gunung Sitoli Pematang Siantar dan Sibolga. Harga Cabai merah di Padang Sidempuan dengan Sibolga, Medan dan Pematang Siantar. Terdapat hubungan jangka Panjang antara harga Cabai merah di Gunung Sitoli dengan Medan, Padang Sidempuan, Pematang Siantar dan Sibolga. Hubungan yang terjadi antara variabel harga Cabai merah yaitu hubungan kausalitas, menunjukkan adanya kausalitas satu arah antara variabel harga Cabai merah di Medan terhadap harga Cabai Pematang Siantar dan harga Cabai Sibolg
Analysis of Budgeting, Administration, and Accountability of Grant Funds in the 2020 Medan Mayor and Deputy Mayor Elections at the Medan City General Election Commission
Get PDFThe Medan City KPU received a grant of Rp 69,349,289,475 from the Medan City Government to implement the 2020 Medan Mayor and Deputy Mayor Elections. The use of funds must be effective, efficient, economical, and accountable. However, the KPU faces several problems in budgeting, administration, and accountability of funds, such as regulatory changes, limited human resources, and delays in reports from the Ad Hoc Body. This study aims to analyze budget governance and grant accountability. The method used is qualitative descriptive, with data obtained through interviews, documentation studies, and content analysis. The study results show that the Medan City KPU has implemented the budget according to applicable regulations and is transparent in budget planning and procurement of goods and services. However, it is less transparent in providing financial information to the public. The Medan City KPU is also accountable, efficient, and effective in managing the Regional Election budget
The Dual Effect of Board Gender and Female Director Independence on Firm Performance in Malaysia
Get PDFCorporate governance plays an increasingly important role in shaping firm performance, particularly in emerging markets such as Malaysia. This study examines the impact of corporate governance factors, specifically board gender diversity and board independence, on firm performance among the top 100 companies listed on Bursa Malaysia. Grounded in Agency Theory, this research explores how diverse board structures influence decision-making and firm outcomes. Agency Theory suggests that an effective board acts as a monitoring mechanism to align the interests of managers and shareholders, reducing agency costs and enhancing firm performance. Board gender diversity, in particular, contributes to stronger oversight, improved decision-making, and greater accountability. Using quantitative data extracted from the 2021 annual reports, the study analyzes the relationship between the number of female directors and independent directors with firm performance, measured by Return on Assets (ROA). The findings indicate a positive correlation between board gender diversity and firm performance, suggesting that greater female representation on boards strengthens governance effectiveness. However, board independence does not appear to have a significant effect on firm performance, possibly due to varying levels of engagement and expertise among independent directors. These results contribute to the ongoing discussion on corporate governance and firm success, offering insights for policymakers and stakeholders. Given that the percentage of female directors in Malaysia remains relatively stable, the findings may not fully capture the potential long-term effects of increased gender diversity. It is recommended that companies and regulatory bodies further promote gender equality by encouraging higher female participation in the workforce and increasing the representation of women on corporate boards to enhance governance effectiveness and mitigate agency conflict
Tourist Classification Based on Consumer Behavior Using XGBoost Algorithm
Get PDFThis study discusses the application of the XGBosst Algorithm to Tourists based on consumer behavior. The purpose of this study is to predict or analyze tourist review data, and to help provide and understand needs so as to improve the quality of services offered. Indonesia has great tourism potential thanks to its natural beauty and cultural diversity. This sector plays an important role in the national economy by creating jobs and encouraging the creative industry and hospitality. The presence of tourists increases regional income through taxes and spending in sectors such as hotels, restaurants, and souvenir shops, as well as creating new jobs. In addition to tourists being able to increase income, there is a need for an understanding of each tourist behavior that is important for the development of adaptive and sustainable tourism
The Application of Genetic Algorithm in Construction Project Planning System At Cv. Haza Mulia Engineering
Get PDFProject scheduling is a crucial aspect in construction project management that aims to ensure that all tasks are carried out in an optimal sequence to maximize efficiency and reduce completion time. This study has three main objectives: (1) to build a web-based construction project planning system at CV. Haza Mulia Engineering, (2) to apply genetic algorithms to the construction project planning system at CV. Haza Mulia Engineering, and (3) to analyze the performance of genetic algorithms in generating optimal project schedules. This study was motivated by the need to complete a final assignment or thesis and used genetic algorithms as the main method. The research process begins with the identification of tasks and dependencies in a construction project. An initial population consisting of random schedules is generated and evaluated using a genetic algorithm. The selection, crossover, and mutation processes are carried out to gradually produce a new, better population. The fitness of each individual is calculated based on the number of unconnected activity dependencies, and the algorithm stops when the best mutually continuous schedule is found. The main result of this study is a web-based application built using PHP. This application is able to produce more efficient project scheduling compared to conventional methods. The schedule generated by genetic algorithm shows significant reduction in project completion time by minimizing unmet dependencies. The conclusion of this study confirms that the application of genetic algorithm in web-based project planning scheduling can avoid conflicts between activities and make the schedule more structured