Customer churn adalah kecenderungan pelanggan berhenti dan berpindah layanan dalam periode tertentu. Ini merupakan masalah utama dalam industri telekomunikasi karena mempengaruhi keuntungan perusahaan. Mempertahankan pelanggan lebih mudah dibandingkan mendapatkan pelanggan baru. Memprediksi churn membantu sektor CRM dalam merancang strategi retensi. Tingkat churn yang tinggi dapat menurunkan pendapatan dan mengganggu stabilitas bisnis. Berdasarkan studi, tingkat churn tahunan di industri telekomunikasi berkisar antara 15% hingga 30%. Data mining, yang memanfaatkan teknik pembelajaran mesin, digunakan untuk menganalisis dan mengekstraksi pengetahuan dari data. Penelitian ini bertujuan untuk membandingkan performa dua algoritma yaitu Random Forest dan Gradient Boosting. Hasil yang didapatkan menggunakan splitting data 80:20 menunjukkan bahwa klasifikasi lebih unggul menggunakan metode Gradient Boosting dibandingkan metode Random Forest dilihat dari tingkat akurasi dan nilai ROC AUC. Metode Gradient Boosting mendapatkan nilai akurasi dan ROC AUC sebesar 83% dan 0.89, Sedangkan metode Random Forest mampu menghasilkan nilai akurasi dan ROC AUC sebesar 81% dan 0.87.
 
Kata kunci: Churn, Gradient Boosting, Klasifikasi, Random Forest, Telco
 
 

The research aims to explore the effects of using social media in second language learning. In today’s digital era, social media has become a significant tool in various aspect of life, including education. This research uses qualitative  methods with in-depth interviews and observations to collect data from 30 high school (high school) student who are learning a second language through social media platforms such as Instagram, twitter, ticktock, and YouTube.The result of the study showed that the use of social media in second language learning had a positive impact on the participants communication skills. Social media allows access to a variety of authentic sources and the opportunity to interact with native speakers, which in turn improves language skills significantly. In addition, participants increased motivating and confidence in using the second language.

There have been many challenges in cigarette companies in recent years, including a decline in sales due to COVID-19, as well as government policies regarding excise and taxes which have triggered profit management in companies. The aim of this research is to find out how company size and financial difficulties affect earnings management. This research method uses quantitative methods with multiple linear regression analysis. The results of the analysis showed that there were symptoms of multicollinearity and autocorrelation in the regression model, but no symptoms of heteroscedasticity were found. The conclusion of this research is that financial distress and company size have an influence on earnings management of cigarette sub-sector companies on the IDX. The independent variable does not have a significant effect on the dependent variable when viewed partially, but has an effect simultaneously. Suggestions for further research are to expand the scope of the variables studied.

Language is a means of communicating between people, but there are those who are unlucky so that they have language disorders, language disorders are phenomena that occur in a person both in receiving and expressing language in communication, not only parents can be affected by language disorders, children can also receive language disorders because the causes of language disorders vary. This study examines language disorders in children with autism using qualitative research methods, as well as descriptive analysis. The aim is to determine the phenomenon of language disorders in children with autism both in terms of receptive and expressive.

This study examines the role of speech style in learning English among students. This research is research using a qualitative approach. The population in this study is an X-class student of AT-tawazun Kalijati Subang's MA. Interviews and random sampling techniques are used for sample-taking. The results of the study show that the influence of the student's speaking style in learning English affects the level of English skills of students. Some aspects that affect the student's speech style are the daily activities of the student, such as speaking English in theys spare time. Classes that encourage learning are also effective.

Bilingualism in the 21st century is becoming increasingly relevant and important in the context of increasing globalization, technology, and social mobility. Like the word psychology, which just joined the world of education in the 20th century. The development of psychology is psycholinguistic. Bilingualism in group discussions provides many advantages in both academic and professional settings. Besides, bilingualism can be used in everyday life and acts as a communication bridge for interlocutors who are in the neighborhood of a variety of areas. This research is qualitative, with a qualitatively descriptive approach. The data came from a group of English-language education students and was obtained through observational research instruments and interviews. The data referred to in this study covers some of the benefits of bilingualism in group discussions. It can be concluded that this study found some benefits of bilingualism for group discussion by FKIP University Subang English Education Students through interviews with several students. The findings of the study yielded significant benefits to the students: improved communication skills, facilitated interaction with members, increased confidence, and added new vocabulary.

This research aims to determine the influence of Economic Growth, Inflation and Unemployment on Poverty in Indonesia in 2014-2023, either partially or simultaneously. The research approach is a quantitative approach. The population in this study is data on Economic Growth, Inflation, Unemployment and Poverty in Indonesia for 2014-2023. Data collection techniques with documentation, data collection tools are in the form of documentation obtained from the Central Statistics Agency (BPS). To process the data, use EVIEWS 10. The results of this research show that Economic Growth, Inflation and Unemployment partially have a positive influence on Poverty in Indonesia. Economic Growth, Inflation and Unemployment simultaneously have a significant positive effect on poverty in Indonesia. Inflation has an insignificant positive effect on poverty in Indonesia in 2014-2023 using a confidence level of 95% or ? = 0.05. Unemployment has a positive and insignificant effect on poverty in 2014-2023 using a confidence level of 95% or ? = 0.05. Economic Growth, Inflation and Unemployment together have a positive effect on Poverty in Indonesia using a confidence level of 95% or with alpha (?) = 0.05.
 

One important component in the tax structure that provides revenue for the state is motor vehicle tax compliance. Tax sanctions, taxpayer awareness, tax expertise, and other factors can have an impact on motor vehicle tax compliance. For Latta Village residents, online vehicle tax payments using the Signal application are a simpler and more effective option. However, a small proportion of local residents are unable to utilize the application. Thus, this study aims to determine the impact of socialization on Latta Village community compliance in the procedure for paying motor vehicle taxes online through the Signal application, as well as to assist the community in paying motor vehicle taxes online without having to come and queue at Samsat.

This research is motivated by the phenomenon that attracted the attention of netizens due to the raising of the Red and White Flag which was raised together with the flag of the Palestinian state which was spread through twitter social media. Many of the platform users commented that the incident was not in accordance with the laws and regulations in Indonesia.  In collecting data, this study used quantitative methods by examining the subject population of high school and university students with a survey approach. This study shows the subject's attention to the treatment of his country's identity, namely the Indonesian national flag as a student. The obligation to defend the country in the form of respect for the Indonesian national flag should be instilled in every soul of the young generation of the Indonesian nation. State defense is not only an obligation but also for the sake of maintaining the continuity of the Indonesian nation as a Pancasila human being.

Employee performance plays an important role in the success and sustainability of the company. Effective management of employees is the key to achieving organizational goals, and factors affecting employee performance have become a major concern in human resource management. Although many studies have been conducted with respect to these factors, there are variations in results and findings. And those who study the factors of delegation, authority and responsibility for employee performance have not been many. So the title of this study is to study the Influence of Delegation, Authority, Responsibility on Employee Performance. This study uses a survey method of a sample of employees from various levels of hierarchy in Agency "X". The data collected is then analyzed using statistics i.e. by multiple regression analysis. The results showed that a higher level of delegation from superiors had a positive impact on employee performance. It was also found that clear authority and well-defined responsibilities contributed positively to employee performance. It can be concluded that the independent variables tested, namely delegation, authority, and responsibility, have a significant influence on the performance of employees in organization "X". Furthermore, policies and practices that support more effective and efficient management of human resources, including management training that understands the importance of delegation and the granting of appropriate authority, can be applied to the organization of "X" and other organizations.