Judul: Analisis kinerja sistem temu kembali informasi model P-Norm
Abstrak: Sistem temu kembali informasi mengolah sekumpulan dokumen dan query (permintaan pengguna) serta mengidentifIkasi dan mengambil dokumen-dokumen yang dianggap sesuai untuk diberikan kepada pengguna. Dokumen yang diberikan merupakan dokumen yang telah mengalami proses perbandingan. Dalam penelitian ini, model p-norm digunakan sebagai metode dalam proses perbandingan dokumen dengan query. Model ini merupakan model yang dapat memberikan sistem peringkat pada dokumen yang ditemukembalikan dan memperbaiki temu kembali infomasi yang menggunakan model Boolean.
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Judul: PUTRA. Extended Boolean Model on Retrieval Using P-Norm Model and Belief Revision
Abstrak: Extended Boolean Model is introduced to intermediate between the Boolean system of query processing and the vector-processing model. The query structure inherent in the Boolean system is preserved, while at the same time weighted term may be incorporated into both queries and stored documents. The retrieved output can also be ranked in strict similarity order with the user queries. Belief Revision is a logical framework in which documents and queries are represented by propositional formulas. Disjunctive Normal Form (DNF) is used to represent documents and queries in the Belief Revision. The purpose of this research is to implement Extended Boolean Model using P-Norm Model and Belief Revision for documents in Bahasa Indonesia. This testing used 30 queries from a thousand agricultural documents and 13 queries from 93 medicinal plants documents. The test result shows that the use of medicinal plants documents is better than agricultural documents. This is due to agricultural documents which have a high similarity between documents. The performance of information retrieval with P-Norm Model and Belief Revision gave good result which is around 81% average precision for medicinal plants documents and 54% for agricultural documents.
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Judul: Biology and ecology of the buffalo fly, haematobia exigua de meijere (diptera:muscidae)
Abstrak: The life history of the buffalo fly was observed at room temperature of 27°-29.5°C and at a relative humidity of 48-68 percent. The eggs hatched after 17-22 hours, with an average of 18 hours. First instar larvae measured 1.25 + 0.16 mm long and 0.27 + 0.037 mm wide. reach the second larval stage. It took 6-12 hours to the second instar larvae measured 2.676 +0.187 mm long and 0.353 +0.028 mm wide. The second instar took about 12-24 hours to reach the third larval stage. The third instar measured 6.833 + 0.189 mm long and 0.919 + 0.051 mm wide. It took about 2-3 days for the third instar to become pupae. Duration of the pupal stage was about 5-7 days before the adults emerged. Under laboratory condition, the buffalo fly completed its life cycle in 9.5 to 10.5 days, whereas under field condition it took 9-14 days with an average of 10.5 days. The growth ratio which was based on the measurements of the cephalo-pharyngeal skeleton of each instar was 1.797. The preoviposition period was 8-12 days and mating usually occurred on the 6th or 7th day. The longevity of the male was 29 days, whereas it was 32 days in the female. The range of egg production under laboratory condition was between 20-139 per female fly. The belly and hind legs of the carabao were the most preferred habitat either during cloudy and cool dry or shiny and warm day. When the weather was clear and the carabao was in the shade, the flies tended to be more distributed particularly on the shoulder, dewlap, back and horns. The carabaos had relatively fewer Musca sp. and Stomoxys calcitrans than cattle; never the less carabaos had a higher infestation of buffalo fly than cattle. Oviposition occured either during the day or night but the buffalo flies were more active during the night than in the day time. The effect of various lengths of exposure time of manure in relation to the oviposition was profound. observed, the maximum number of the buffalo flies was occurred when the dung was exposed for 30 minutes. With increasing time of exposure the number and variety of insects also increase. It was evident that Sepsidae and psychodidae were the most dominant insects emerging from the dung. The number of buffalo flies also increased with increasing
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