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With the increasing development of technology the more variety of books circulating on the internet. As is the recommendation system on online book sites that provide books relevantly and as needed with one's preferences. One alternative is GoodReads, a social networking site that specializes in cataloging books and users can share reading book recommendations with each other by rating, reviewing, and commenting. As a large book recommendation site, it has a lot of data that can be processed by applying machine learning methods, but still not known as the most accurate model. By using the right model, we can provide more accurate recommendations. Therefore, this study will analyze the data obtained from the www.kaggle.com namely the goodreads-books dataset. This study proposed a data mining classification model to get the best model in recommending books on GoodReads. The algorithms used are Decision Tree, K-Nearest Neighbor, Naïve Bayes, Random Forest, and Support Vector Classifier, then for model evaluation using accuracy, precision, recall, f1-score, confusion matrix, AUC, and Mean Error Absolute. The test results of several classification algorithms found that Decision Tree has the highest accuracy among the methods presented by 99.95%, precision by 100%, recall by 96%, f1-score of 98% with MAE of 0.05 and AUC of 99.96%. This is proof that decision tree algorithms can be used as book recommendations based on book categories on GoodReads.

To encourage political participation, good political education is needed. Political education can target young people as agents of change that have much influence in political development. Therefore, it is important to provide political education in strengthening the political participation of Indonesian youth. This program aims to provide Political Education in Strengthening Youth Political Participation. The service program was held in a four-month time series, from January to April 2019. The socialization activities had been held in Mandan, Sukoharjo Regency on Saturday, April 21, 2019 for one day, attended by 34 young people. The method used in program was socialization and active discussions, and providing motivation for the participants, which was previously preceded by participant assessment activities. The socialization activity lasted for one day. The core material of socialization consists of (1) political introduction; (2) the importance of political participation; (3) youth's ideal actions in political participation. The members of this program were Youth Organization of Mandan , Sukoharjo. Through this program, it can be beneficial for: (1) youth and the general public, to get a picture of political education and positive political participation; (2) for regions, can develop regional potential, regional promotion, and regional development; (3) for tertiary institutions, as fulfillment of the Tri Dharma element of Higher Education. Keywords: Mandan, political education, youth.

Accounting information has an important role in achieving business success, including for small businesses. Accounting is one way to produce financial information that can be used by management as a basis for making strategic decisions. Reports produced include balance sheets, profit/loss reports, changes reports and cash flow reports. All of these reports can be used by information users. For small business actors in villages, it is minimal to have accounting records, most of them make business decisions based on experience alone. Small business development is needed to make it strong, both related to development both external to the company and in managing the company's internal. If from an internal perspective, the management of small businesses still considers that the accounting process is still not very important to implement. Empowerment of business management management is very necessary. Good financial reports can provide useful financial information for making strategic business decisions. This community service is expected to increase the ability of business actors in the villages of Bancak District, Semarang Regency so that they can provide information on the financial condition of businesses that are being run for each reporting period. The community service team of ITB Semarang Accounting Study Program lecturers conducted community outreach activities in the form of simple lectures and training. The results of this community service were well received by participants in the Financial Accounting socialization and training for business actors in Bancak District, Semarang Regency.

The digital age encourages the flow of information to move quickly and shift the pattern of international relations. This has influenced the development of the total diplomacy scheme in supporting the achievement of Indonesia's diplomacy goals. In this program, we take international relations students of Slamet Riyadi University as activity partners.International Relations students should be able to engage in total diplomacy positively. They will be provided with digital intelligence according to the positive character of the nation is needed, so that they are able to contribute in growing Indonesia's positive image in the international eyes. This community service program would like to support Indonesia's efforts to collaborate digital media in a total diplomacy scheme with student youth agents, through "Strengthening Youth Digital Intelligence as a Form of Its Contribution to Indonesian Total Diplomacy." They were given socialization, training and assistance in creating content related to diplomacy. The series of activities lasted for six months, starting from the exploration to the distribution of video content made by them which was adjusted to the Indonesian diplomacy mission. Keyword : digital intelligence, Indonesia, total diplomacy, youth