Judul: Mesin Pencari untuk Sistem Kearsipan Daerah Kabupaten Sragen
Abstrak: Sragen district archives system is the system that used to store archived data. In this archives system, the searching is based on data or a summary disposition from the archives. Because this search result is limited, this research makes search engine for regional archives system that is based on the contents of digital archives, especially Microsoft Word. This search engine is using vector space model for weighting and cosine similarity. Stemmer used in this research is stemmer based on KBBI. Evaluation is using recall and precision of queries that has been determined. The calculation of average precision (AVP) is done because of some queries are used in this evaluation. AVP measuring is calculatd based on 11 standard recall levels. Evaluation result from the search engine is relevant documents that appropriate with the sequence relevance. The value of average precision got from 10 queries is 0.896, scale from 0 to 1. The precision of the search engine performance is affected by the stemmer. Stemmer KBBI creates smaller index size, but it decreases the precision. Stemmer KBBI decreases the precision, because of search by using basic words .
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Judul: Ekspansi Kueri Menggunakan Metode Semantic Similarity Retrieval Model (SSRM)
Abstrak: The main objective of this study was to applied the method of semantic similarity in the proccesed of query expansion in information retrieval systems in the Indonesian language. Selection of partners in selecting candidates expansion will be used phrase pairs that have been made In research Kartina (2010) in which the phrase pairs with the largest value of similarity between the words that will be selected. Used by 10 groups of queries not clear who obtained manually and 30 groups of queries in 2000 agricultural document, document search results will be compared with the addition one-term of expansion, two-term of expansion, and three-term of expansion. The results of this study suggest five things. The first that the expansion of the query by added one term produces better results than the addition of two terms and three terms. The second that query expansion used by 10 groups of queries produces a higher precision values than using 30 groups of queries. The third that the used of the semantic similarity method produces better performance than the use of a thesaurus on the method of similarity retrieval Vektor Space Model (VSM). The fourth that the used of semantic similarity methods have not been able to produce better performance than the used of the method of conditional probabilities in the selection of expansion terms resulting from the translation of bilingual dictionary. The fifth that the used of the phrase paired in determining the candidate expansion terms can not maximize the search results using the method of semantic similarity of documents, because each pair selected does not necessarily have a semantic relationship with a given query.
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Judul: Pengaruh pemberian hormon tiroksi secara oral terhadap pertumbuhan dan kelangsungan hidup ikan plati koral
Abstrak: Hormon tiroksin diketahui sebagai hormon yang dapat mempengaruhi pertumbuhan dengan jalan meningkatkan laju metabolisme tubuh, efisiensi makanan dan retensi protein. Oleh karena itu, pada penelitian ini dipelajari pengaruh pemberian hormon tiroksin melalui makanan terhadap pertumbuhan dan kelangsungan hidup ikan plati koral. Pelaksanaannya dilakukan di Laboratorium Pengembangbiakan dan Genetika Ikan, Jurusan Budidaya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor mulai akhir bulan Januari sampai akhir bulan Maret 2003. Ikan plati koral yang berumur enam pekan dipelihara di dalam akuarium berukuran 100 cm x 50 cm x 45 cm, dengan kepadatan dua ekor per liter. Selanjutnya dilakukan adaptasi terhadap jenis makanan yang akan diberikan. Adaptasi ini dilakukan sampai ikan menunjukkan respon positif terhadap makanan yang diberikan. Setelah itu, ikan dipuasakan selama 24 jam untuk menghilangkan pengaruh sisa makanan yang masih ada dalam tubuh. Percobaan dilakukan di dalam akuarium berukuran 46,5 cm x 60 cm x 50 cm sebanyak sepuluh buah, dengan volume air sembilan puluh liter. Setiap akuarium dibagi tiga dengan jaring sehingga masing-masing berukuran 46,5 cm x 20 cm x 50 cm Pada akuarium 1-A, I-B, dan I-C diberikan makanan dengan dosis tiroksin 0,2 mg/kg makanan dan lama pemberian masing-masing selama satu, dua, dan tiga pekan. Untuk akuarium II-A, II-B, dan II-C, diberikan makanan dengan dosis tiroksin 2 mg/kg makanan dan lama pemberian masing-masing satu, dua, dan tiga pekan. Dan pa akuarium III-A, III-B, dan III-C diberikan makanan dengan dosis 20 mg/kg makanan dan lama pemberian pun selama satu, dua, dan tiga pekan. Msing-masing perlkuan diulang sebanyak tiga kali.
Keyword: thyroxine, Xiphophorus maculatus, southern platyfish, platy