Content-based filtering is one of the recommendation system methods that provides recommendations based on the similarity of attributes or items preferred by users. Several researchers in various fields have used content-based filtering in their research. This paper describes several studies in various fields using content-based filtering to solve the problems faced in their research. From these studies, the researchers revealed that the use of content-based filtering can produce simple and efficient recommendations and its application can increase the revenue of a business.

Keterampilan Thinking Skills merupakan keterampilan dasar yang harus dikuasai siswa dalam Pembelajaran Abad XXI yang dirilis PBB. Kemampuan ini di dalamnya mengharuskan siswa untuk selalu berpikir kreatif dalam memecahkan suatu permasalahan. Metode Computational Thinking, yaitu di mana siswa dituntut untuk memformulasikan masalah menjadi bentuk masalah komputasi dan menyusun solusi komputasi dengan logika matematika dan informatika. Dalam kegiatan Pengabdian Kepada Masyarakat (PKM) Kepakaran Bidang ilmu ini, telah diperkenalkan konsep Computational Thinking bagi Guru Sekolah Dasar (SD) dengan tujuan para Guru dapat memberikan keterampilan bagi siswa SD dalam menghadapi materi Pembelajaran Abad XXI. Dalam PKM ini telah digunakan metode tindak lanjut, dengan kegiatan pelatihan berkala, pendampingan secara intensif kepada guru sekolah dasar sebagai anggota pelatihan dan evaluasi kegiatan melalui uji kompetensi dasar bagi peserta terkait konsep Computational Thinking dengan hasil rata-rata dari seluruh peserta didapatkan nilai 70.25% terkait soal-soal dasar mengenai Computational Thinking. Hal tersebut menunjukan peserta cukup paham terkait konsep pengerjaan soal Computational Thinking untuk tingkat Sekolah Dasar.

This study explores the inclusion of the visual arts in mathematics instruction as a means of piquing students' interest in a topic that is frequently regarded as difficult. We evaluate numerous research that have been undertaken in this situation by completing an extensive literature study. Our findings show that the inclusion of visual arts in mathematics instruction has been helpful in piquing students' attention, boosting their motivation, and creating possibilities for them to investigate challenging mathematical ideas in a more imaginative way. These results provide a deeper understanding of the importance of visual arts in creating an engaging mathematics learning environment. The study also highlights challenges that need to be addressed and provides insights for further development in the application of visual arts in mathematics education. Thus, the integration of visual arts has significant potential to build interest in mathematics and enrich students' learning experiences.

This study introduces a fuzzy interval-valued approach using multi-objective linear programming to optimize passenger–driver matching in ride-hailing systems, addressing uncertainties in waiting times and fare preferences. The model aims to minimize total waiting times, balance job allocations among drivers, and reduce deviations in fare expectations between passengers and drivers. The proposed framework effectively manages operational uncertainties by incorporating interval-valued fuzzy parameters, including traffic variability and fluctuating demand patterns. Numerical experiments using real-world data demonstrate that the interval-valued fuzzy model significantly outperforms deterministic methods in reducing average waiting times, achieving higher request fulfillment rates, and ensuring a more equitable distribution of assignments among drivers. The results highlight the model’s robustness and adaptability, particularly under high uncertainty scenarios, and its ability to maintain service reliability and user satisfaction. While computational complexity remains a limitation, integrating the model with AI and IoT technologies offers promising avenues for scalability and real-time applications. These findings contribute to advancing optimization frameworks in ride-hailing systems, emphasizing uncertainty management’s importance in enhancing operational efficiency and fairness.

Dalam menghadapi abad XXI, salah satu hal yang menjadi tantangan pada dunia pendidikan saat ini adalah membangun beragam keterampilan, diantaranya adalah keterampilan menggunakan Teknologi Informasi dan Komunikasi (TIK), keterampilan bepikir kritis dan sistemik, keterampilan memecahkan masalah, keterampilan berkomunikasi efektif dan keterampilan berkolaborasi. Metode Computational Thinking, yaitu di mana siswa dituntut untuk memformulasikan masalah menjadi bentuk masalah komputasi dan menyusun solusi komputasi dengan logika matematika dan informatika. Tahapan pada kegiatan Pengabdian Kepada Masyarakat (PKM) ini merupakan kegiatan tahun lanjutan dengan fokus kegiatan mengimplementasikan konsep Computational Thinking bagi Guru Sekolah Dasar (SD) dengan tujuan para-Guru dapat memberikan keterampilan bagi siswa SD dalam menghadapi materi Pembelajaran Abad XXI. Dalam PKM ini telah digunakan metode tindak lanjut, dengan kegiatan pelatihan berkala, pendampingan secara intensif kepada guru sekolah dasar sebagai anggota pelatihan dan evaluasi kegiatan melalui penilaian dari tim BEBRAS terkait kelayakan soal yang sudah dibuat bersama saat kegiatan PKM berlangsung. Hasilnya 97,12% soal yang telah dibuat oleh para peserta yang semuanya merupakan guru Sekolah Dasar telah dinilai layak sebagai soal dengan implementasi Computational Thinking untuk diterapkan bagi Siswa Sekolah Dasar.

Graph coloring is one of the problems in graph theory. In graph theory, a greedy algorithm is a common algorithms in solving a problem. Greedy algorithms can be used for graph coloring; however, not all of the graph coloring problems that this algorithm uses can optimum outcomes globally. The selection of node sequencing used during the search also affects the success of the greedy algorithm in dealing with graph coloring cases. However, the use of greedy algorithms still helps reduce the number of colors used in non-directed graph coloring.