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The growth of information technology has driven changes in consumer behavior, one of which is through e-commerce platforms such as Shopee. This phenomenon has generated a large number of customer reviews, including those for local cosmetic products such as Wardah. These reviews serve as an important source of information for understanding customer perceptions and satisfaction levels. However, manual analysis of large and linguistically diverse datasets is inefficient and potentially subjective. This study aims to implement the multi-category Naive Bayes algorithm to classify the sentiment of Wardah product reviews on Shopee into three categories: positive, negative, and neutral. The data were collected using a web scraping technique and processed through a series of preprocessing stages including case folding, tokenization, stopword removal, stemming, and text cleaning. Subsequently, term weighting was performed using the TF-IDF method prior to classification. Model performance was evaluated using a confusion matrix as well as accuracy, precision, and recall metrics. The results indicate that the multi-category Naive Bayes algorithm achieved an accuracy of 86.00%, a precision of 86.63%, and a recall of 98.24%. This approach can assist business practitioners in objectively understanding customer opinions and support decision-making in business strategy and product development.

This study aims to develop an English learning module based on the role play approach to improve the speaking skills of Grade X students at SMA Negeri 21 Medan. The study is motivated by students’ low speaking ability due to limited communication practice and the use of conventional teaching methods. This research employs a qualitative approach focusing on needs analysis and initial product development. The research subjects include English teachers and Grade X students who participated in the needs analysis questionnaire. The findings indicate that students require interactive, communicative, and contextual learning and show strong interest in role play activities. Based on these findings, a role play-based module was designed to support speaking practice. However, this study is limited to the design and development stage and has not yet conducted expert validation or field testing. Therefore, further research is recommended to evaluate the feasibility, practicality, and effectiveness of the developed module.

This study aims to analyze the role of marketplace in encouraging digital internationalization and product development at PT Bungas Food Nusantara. The research uses a qualitative approach with a case study method. Data was obtained through in-depth interviews with company management, observation of activities on the marketplace platform, and supporting documentation. The results of the study show that marketplaces function not only as digital distribution channels, but also as strategic infrastructure that allows companies to reach international markets without conventional export mechanisms. Internationalization occurs gradually through increased demand from overseas consumers facilitated by the platform's algorithmic system and global visibility. In addition, the marketplace's reviews, ratings, and analytics features are used as the basis for product development, including packaging adjustments, variant innovation, and data-driven promotional strategies. These findings show that marketplaces play a role as a catalyst for internationalization as well as a driver of product innovation in the context of the digital economy.

Local food innovation is not only focused on product development but also requires effective communication strategies to build positive perceptions and enhance market competitiveness. This study aims to analyze the implementation of innovation communication strategies by micro, small, and medium enterprises (MSMEs) in developing papaya-based chili chips as a flagship product in Nagori Karang Anyar, Gunung Maligas District, Simalungun Regency. The research employs a descriptive qualitative approach, focusing on the product innovation process, marketing communication patterns, and efforts to build product image amid competition in the local food industry. The findings indicate that innovation communication strategies play a crucial role in creating product differentiation through narratives of unique taste, utilization of local raw materials, and promotional strategies combining traditional methods and digital media. Papaya chili chips are positioned as a product that blends distinctive local flavors with a modern touch, attracting consumer interest and increasing the added value of papaya as a local commodity. This study emphasizes that the success of local food innovation depends not only on product quality but also on the ability of MSMEs to manage adaptive and persuasive communication strategies.

Science learning in elementary schools, especially regarding the material on changes in the state of matter, requires media that can present concepts in a concrete and interesting way so So that it is easy for students to understand. This research aims to develop a science learning medium about changes in the states of matter through BrainPOP animated videos equipped with interactive questions for fourth-grade elementary school students, and to evaluate the level of feasibility and studentThis research focuses on students’ feedback toward the developed learning media. It adopts a The research and development (R&D) methodology based on the ADDIE model includes steps such as needs analysis, instructional design, product development, implementation, and evaluation. The students involved in the research were in fourth grade  elementary school students, fourth-grade teachers, and validators from material experts and media experts. The process of data collection involved multiple methods such as direct observation, in-depth interviews, and the distribution of questionnaires obtained were analyzed using quantitative and qualitative descriptive techniques. The results of the study indicate that the developed learning media is classified as very feasible based on validation provided by material experts and media experts. In addition, the results of limited trials indicate that students gave a very positive response to the use of these learning media. Therefore, science learning media based on BrainPOP animated videos and interactive questions can be considered a feasible alternative to increase the interest and understanding of fourth-grade elementary school students.

This research aims to develop a deep learning-based mathematics e-module with the integration of the context of the Suramadu Bridge in scale and comparison materials for grade VII junior high school students. The development model used is the 4D (Define, Design, Develop, Disseminate) model which includes the stage of defining learning needs, designing e-modules, product development, and limited deployment. The research instruments used included validation sheets of media and material experts, observation sheets of teacher and student activities, learning outcome tests, and student response questionnaires. The results of the study showed that the e-modules developed met the valid criteria with a media validity level of 94.29% and material of 95%. In addition, the e-module is considered practical with teacher practicality of 78.67% and students of 86.67%, and effective with a learning effectiveness rate of 83.83%. The students' response to the e-module was also very positive, which showed that the integration of the local context of the Suramadu Bridge and the deep learning approach was able to increase student engagement, learning motivation, and understanding of mathematical concepts in a meaningful way. These findings indicate that local context-based e-modules can be an innovative alternative in mathematics learning that is relevant to students' real lives as well as support the implementation of 21st century learning.

Electronics learning in higher education continues to face various challenges, particularly in the provision of interactive learning media capable of concretely and engagingly visualizing the form, characteristics, and working principles of electronic components. The limitations of conventional learning media often result in abstract learning processes, which in turn lead to a low level of student understanding of basic electronics concepts. This study aims to develop the AMPERE as an innovative and technologically relevant interactive learning medium. The research employed R&D approach using the Borg & Gall model, which includes the stages of needs analysis, design, product development, validity testing, and limited implementation. The AMPERE application was developed using marker based AR technology, in which a smartphone camera detects markers to display and interact with 3D electronic component objects in real time. The results indicate that the AMPERE application achieved a high level of validity, with a score of 0.88 from subject-matter experts and 0.84 from media experts, and was therefore deemed suitable for use as a learning medium. The small-group trial results showed a practicality level of 82.07%, while the practicality test during the implementation stage reached 85.67%. These findings demonstrate that AMPERE is effective in enhancing learning interactivity and assisting students in understanding the form, function, and working principles of electronic components through smartphone-based digital visualization. Theoretically, these results are consistent with constructivist learning theory, which emphasizes active knowledge construction through direct experience and interaction with learning objects.

Traditional snack micro, small, and medium enterprises (MSMEs) in Indonesia face increasing market competition and rapidly changing consumer preferences, particularly among younger consumers seeking innovative and symbolic food experiences. This community engagement study aims to strengthen the profitability and sustainability of traditional snack MSMEs by integrating local flavor innovation with simple business governance practices. Using a participatory action research approach under the Merdeka Belajar Kampus Merdeka (MBKM) program in Palangka Raya, this study involved co-creation between students and local entrepreneurs in product development, production standardization, and basic financial management. Qualitative data were collected through participatory observation and stakeholder discussions, while quantitative data were obtained from sales records and simple financial reports. The results demonstrate that local flavor-based innovation, combined with standardized operating procedures and cost control mechanisms, improved product differentiation, operational efficiency, and financial performance. The intervention generated a positive net profit and strengthened the partner’s capacity for independent business management. This study contributes to the literature by positioning traditional food MSMEs as sites of cultural innovation and micro-governance, while supporting Sustainable Development Goals related to inclusive economic growth, cultural preservation, and responsible production.