Judul: Pemodelan Downsampling untuk Optimasi Pengenalan Pola Jaringan Saraf Tiruan (Studi Kasus: Lembar Jawaban Jawaban Ujian Perguruan Tinggi)
Abstrak: Saat ini kemajuan teknologi digital telah mempercepat transformasi di bidang teknologi informasi memberikan inspirasi positif bagi para ilmuwan. Baru-baru ini dalam aplikasi Jaringan Saraf Tiruan (JST) dari pengenalan pola, telah digunakan untuk pengenalan pola tulisan tangan, namun, metode ini belum diterapkan di digunakan dalam mengenali huruf pada lembar jawaban ujian. Oleh karena itu, studi bertujuan memodelkan praproses untuk pengurangan pixel menggunakan teknik downsampling dengan harapan mengoptimalkan pengenalan pola pada Jaringan Saraf Tiruan (JST). Penelitian ini mengambil studi kasus pola tulisan tangan untuk tulisan tangan huruf 'A', 'B', 'C', 'D' dan 'E'. Teknik Model downsampling yang diusulkan adalah dengan mereduksi matriks citra pada kolom dan baris sehingga menghasilkan vektor sebagai input JST. Hasil percobaan, menunjukkan bahwa ketika kedua kolom dan baris matriks yang direduksi mendapatkan akurasi yang lebih tinggi (98,8%) dengan rentang rendah (3,30%) dan konvergensi waktu yang rendah (9 menit dan 20 detik) bila dibandingkan dengan Backpropagation normal, sehingga metode yang diusulkan disajikan keandalan yang lebih tinggi untuk pengenalan pola tulisan tangan dengan RMSE rata-rata 0,1.
Keyword: Backpropagation, Downsampling, JST

Judul: Jaringan Syaraf Tiruan Untuk Pengenalan Tanda Tangan
Abstrak: Penelitian ini mengformulasikan masalah pengenalan tanda tangan menggunakan jaringan syaraf Tiruan (JST) melalui tiga representasi pola input JST, yaitu representasi biner, bipolar dan kontinu. Teknik JST yang digunakan adalah propagasi balik yang memiliki arsitektur multi layer neural network dengan satu lapisan tersembunyi. Data tanda tangan diperoleh dari 10 orang berbeda yang berupa data tanda tangan kasar (raw signature image) tanpa ekstraksi ciri tanda tangan. Selain itu juga digunakan metode pembelajaran lain yang ada di dalam Matlab, yaitu metode pembelajaran radial basis function.sebagai pembandingan. Dalam hal ini, JST yang digunakan adalail Probabilistic Neural Networks (PNN).
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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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