Judul: Penerapan Algoritme Prefixspan dan GSP untuk Mencari Pola Sekuensial pada Data Peminjaman Buku di Perpustakaan IPB
Abstrak: IPB's library as a learning support unit for student has an important role such as book lending service. The data obtained from the circulation transaction will generate a certain pattern of books that are being borrowed by library user. This research applies the prefixspan algorithm and generalized sequential pattern (GSP) algorithm to obtain a sequential pattern. The amount of data used ranges from 50 to 4104 with the value of minimum support ranges from 5% to 20%. The results show that the GSP algorithm works better on high minimum support while prefixspan algorithm works better in low minimum support. The sequential patterns generated from the two algorithms show the relationships between item: book code 820 (literature) with 027 (general), book code 631 (agriculture) with 658 (management, administration, commercial organizations), and book code 631 with 636 (husbandry). The most frequently borrowed book from the entire dataset is the book code 658.
Keyword: prefixspan, sequential pattern, generalized sequential patterns (GSP)

Judul: Penentuan pola sekuensial pada data transaksi perpustakaan IPB menggunakan algoritma graph search techniques
Abstrak: Data transaksi di Perpustakaan IPB terutama peminjaman buku dicatat setiap hari sehingga menghasilkan kumpulan data transaksi peminjaman buku dalam ukuran besar. Untuk mengetahui pola perilaku peminjaman buku oleh seluruh anggota perpustakaan khususnya mahasiswa Strata 1 (S1) tahun masuk 2003 digunakan salah satu metode dalam data mining yaitu sequential pattern mining dengan algoritma Graph Search Techniques (GST) sebagai pembentuk large sequence. Algortima GST dapat menemukan urutan large k-sequence (k ≥ 3) tanpa mengetahui langsung large (k-1) sequence. Pola sekuensial yang merupakan large sequence maksimal dicari dari seluruh large sequence yang terbentuk. Pola sekuensial yang diperoleh kemudian direpresentasikan agar mudah dipahami dan diinterpretasikan. Informasi yang diperoleh diharapkan dapat berguna bagi pengelola perpustakaan dalam peningkatan mutu layanan di Perpustakaan IPB.
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Judul: Acute Oral Toxicity Lethal
Dose 50 (LD50) of Cayenne Pepper (Capsicum annuum) Infusion in DDY Strain
Mice (Mus musculus)
Abstrak: In recent years, there has been a growing interest in herbal remedies such as cayenne pepper which is known for its versatility beyond its culinary use. Cayenne pepper’s phytochemicals, including capsaicinoids, carotenoids, phenolic compounds, vitamins, and minerals, offer antioxidant, antimicrobial, and antiinflammatory properties, making it a valuable ingredient in various fields such as veterinary medicine, agro-food, cosmetics, and pharmaceuticals. However, concerns regarding the potential risks of cayenne pepper consumption as herbal medicine arise. This study aims to determine the acute oral toxicity lethal dose 50 (LD50) of cayenne pepper infusion in female DDY strain mice and its effects on the mice's organs. The research involved 20 DDY strain female mice divided into 4 groups which are control group (administered with distilled water) and treatment groups that are given cayenne pepper infusion at doses of 5, 10, and 15 g/kg BW orally. The observed variables included mortality, clinical symptoms, physiological responses, and organ weight. Acute toxicity testing indicated that the cayenne pepper infusion falls into the category of practically non toxic formulations. Administration of the cayenne pepper infusion up to a dose of 15 g/kg BW did not induce toxicity symptoms, such as clinically pathological symptoms, macro anatomical organ changes, or mortality nor affect both weight gain and loss.
Keyword: cayenne pepper, infusion, acute oral toxicity, DDY strain mice, herbal medicine