In a highly competitive business, understanding customers is crucial for an organization to determine its success. Effective marketing is not just about offering good products, promotions, or services; it also requires strategies to reach and build strong relationships with customer groups. Segmenting customers is one method that helps businesses deeply understand the needs and behaviors of the customers who use their services In this internship, the objective is to understand the behavior of customers purchasing coffee and tea at a large cafe group by analyzing stored customer data. As a result of this process, customer groups purchasing coffee and tea were segmented using Naive Bayes, Random Forest, and Deep Learning techniques to compare the accuracy and suitability of different Machine Learning methods, and the insights gained from this analysis can be for further development in analyzing other data set in the future
กาแฟและชา เป็นเครื่องดื่มที่ได้รับความนิยมอย่างมาก ทั้งชาและกาแฟมีประโยชน์ต่อสุขภาพ ใช้ดื่มเพื่อผ่อนคลาย ชาเป็นเครื่องดื่มที่ทำให้ผ่อนคลายจากการทำกิจกรรมมาทั้งวัน ในขณะเดียวกัน กาแฟเป็นตัวช่วยเพิ่มพลังงาน และพลังสมองก่อนที่จะทำกิจวัตรใดๆ อีกทั้งยังเป็นตัวเชื่อมความสัมพันธ์ระหว่างมนุษย์ ดังนั้น การมองหาร้านกาแฟที่มีเครื่องดื่มที่เข้มข้น สินค้าที่หลากหลาย ยังต้องมีพื้นที่สังสรรค์ พบประผู้คน ซึ่งในนั้นก็คือ ร้านกาแฟพันธุ์ไทย ซึ่งเป็นแบรนด์กาแฟ ที่มีทั้งเครื่องดื่ม ขนมปัง เบเกอรี่ และอาหารหลากหลาย ทำให้มีกลุ่มลูกค้าที่เข้ามาใช้บริการเป็นจำนวนมาก และลักษณะการซื้อเครื่องดื่มและสินค้าที่แตกต่างกัน จากเหตุผลดังกล่าว ทำให้ทีมธุรกิจอัจฉริยะ (Business Intelligence - BI) กลุ่มธุรกิจอาหารและเครื่องดื่ม มีความสนใจที่จะจัดกลุ่มลูกค้าของร้านกาแฟพันธุ์ไทย ข้าพเจ้าจึงมีแนวคิดที่จะจำแนกและวิเคราะห์พฤติกรรมลูกค้า แบ่งออกเป็น 3 กลุ่ม ได้แก่ ลูกค้าที่ซื้อเครื่องดื่มประเภทกาแฟเป็นประจำ ลูกค้าที่ซื้อเครื่องดื่มประเภทชา และลูกค้าที่ซื้อเครื่องดื่มทั้งชาและกาแฟ โดยการใช้ Naive Bayes, Random Forest, Deep Learning เปรียบเทียบเทคนิค ที่มีความแม่นยำและเหมาะสม เพื่อนำข้อมูลที่วิเคราะห์ได้ไปใช้ประโยชน์ต่อไป
คณะครุศาสตร์อุตสาหกรรมและเทคโนโลยี
This project presents the development of a single-frequency GPS-based total electron content measurement tool. It applies theories related to total electron content in the ionospheric layer and the measurement of total electron content using GPS time delay to design the single-frequency GPS total electron content measurement tool. The tool consists of an antenna, a single-frequency GPS satellite receiver, a data processing unit for evaluating and calculating total electron content, and a display unit for showing total electron content data. The performance of the single-frequency GPS total electron content measurement tool is tested by comparing it with total electron content data obtained from the International Reference Ionosphere (IRI) model, which is a global reference model for electron content. The tool is also put to practical use. The results of the comparison and practical applications conclude that the single-frequency GPS-based total electron content measurement tool can be effectively utilized, with the difference from the IRI model being 50 TECU
คณะอุตสาหกรรมอาหาร
This research investigates active packaging films made from polyvinyl alcohol (PVA) and nanocellulose fibers (NFC), incorporating silver nanoparticles (AgNPs) synthesized from Terminalia chebula extract, which possesses antibacterial and antifungal properties. The developed films were tested for their mechanical properties, microbial inhibition, and biodegradability. The results showed that the addition of AgNPs from Terminalia chebula enhanced product protection and effectively extended the shelf life of strawberries while being environmentally friendly.
คณะวิศวกรรมศาสตร์
The integration of intelligent robotic systems into human-centric environments, such as laboratories, hospitals, and educational institutions, has become increasingly important due to the growing demand for accessible and context-aware assistants. However, current solutions often lack scalability—for instance, relying on specialized personnel to repeatedly answer the same questions as administrators for specific departments—and adaptability to dynamic environments that require real-time situational responses. This study introduces a novel framework for an interactive robotic assistant (Beckerle et al. , 2017) designed to assist during laboratory tours and mitigate the challenges posed by limited human resources in providing comprehensive information to visitors. The proposed system operates through multiple modes, including standby mode and recognition mode, to ensure seamless interaction and adaptability in various contexts. In standby mode, the robot signals readiness with a smiling face animation while patrolling predefined paths or conserving energy when stationary. Advanced obstacle detection ensures safe navigation in dynamic environments. Recognition mode activates through gestures or wake words, using advanced computer vision and real-time speech recognition to identify users. Facial recognition further classifies individuals as known or unknown, providing personalized greetings or context-specific guidance to enhance user engagement. The proposed robot and its 3D design are shown in Figure 1. In interactive mode, the system integrates advanced technologies, including advanced speech recognition (ASR Whisper), natural language processing (NLP), and a large language model Ollama 3.2 (LLM Predictor, 2025), to provide a user-friendly, context-aware, and adaptable experience. Motivated by the need to engage students and promote interest in the RAI department, which receives over 1,000 visitors annually, it addresses accessibility gaps where human staff may be unavailable. With wake word detection, face and gesture recognition, and LiDAR-based obstacle detection, the robot ensures seamless communication in English, alongside safe and efficient navigation. The Retrieval-Augmented Generation (RAG) human interaction system communicates with the mobile robot, built on ROS1 Noetic, using the MQTT protocol over Ethernet. It publishes navigation goals to the move_base module in ROS, which autonomously handles navigation and obstacle avoidance. A diagram is explained in Figure 2. The framework includes a robust back-end architecture utilizing a combination of MongoDB for information storage and retrieval and a RAG mechanism (Thüs et al., 2024) to process program curriculum information in the form of PDFs. This ensures that the robot provides accurate and contextually relevant answers to user queries. Furthermore, the inclusion of smiling face animations and text-to-speech (TTS BotNoi) enhanced user engagement metrics were derived through a combination of observational studies and surveys, which highlighted significant improvements in user satisfaction and accessibility. This paper also discusses capability to operate in dynamic environments and human-centric spaces. For example, handling interruptions while navigating during a mission. The modular design allows for easy integration of additional features, such as gesture recognition and hardware upgrades, ensuring long-term scalability. However, limitations such as the need for high initial setup costs and dependency on specific hardware configurations are acknowledged. Future work will focus on enhancing the system’s adaptability to diverse languages, expanding its use cases, and exploring collaborative interactions between multiple robots. In conclusion, the proposed interactive robotic assistant represents a significant step forward in bridging the gap between human needs and technological advancements. By combining cutting-edge AI technologies with practical hardware solutions, this work offers a scalable, efficient, and user-friendly system that enhances accessibility and user engagement in human-centric spaces.