Judul: Partisipasi Masyarakat dalam Upaya Pengendalian Kebakaran Hutan di Taman Wisata Alam Gunung Guntur, Garut, Jawa Barat.
Abstrak: Kebakaran hutan merupakan salah satu gangguan hutan yang dapat merusak ekosistem. Kebakaran hutan di Taman Wisata Alam Gunung Guntur dalam lima tahun terakhir memiliki frekuensi kebakaran yang tinggi. sehingga diperlukan upaya pengendalian kebakaran hutan. Tujuan dari penelitian ini adalah mengidentifikasi, mendeskripsikan, menganalisis upaya pengendalian dan peran masyarakat dalam kebakaran hutan. Metode yang digunakan adalah triangulasi data dan dianalisis secara deskriptif kualitatif. Pemilihan subyek penelitian dilakukan dengan metode snowball sampling technique. Upaya pengendalian kebakaran hutan dilakukan oleh pihak pemerintah, masyarakat sekitar hutan dan paguyuban masyarakat. Hasil penelitian menunjukkan upaya pencegahan kebakaran hutan yang dilakukan dengan pemasangan papan peringatan, bermintra dengan paguyuban masyarakat dan melakukan sosialisasi terhadap masyarakat sekitar hutan. Jumlah partisipasi masyarakat yang mengikuti sosialisasi sebanyak 53.33% . Jumlah partisipasi masyarakat yang melapor adanya kejadian kebakaran hutan sebanyak 60%. Jumlah partisipasi masyarakat dalam pemadaman sebanyak 63.33% .
Keyword: Sosialisasi, Pemadaman, Pelaporan

Judul: Persepsi Masyarakat dalam Upaya Pengendalian Kebakaran Hutan di Taman Nasional Gunung Ciremai
Abstrak: Kebakaran hutan menyebabkan kerugian dan dampak negatif yang cukup besar. Kebakaran di Taman Nasional Gunung Ciremai disebabkan karena faktor manusia. Upaya pengendalian kebakaran hutan saat ini diutamakan dengan melibatkan masyarakat. Penelitian ini dilakukan dengan menggunakan data primer yang didapat dari pengisian kuisioner berdasarkan hasil wawancara. Penelitian ini mengambil sampel sebanyak tiga desa yaitu Desa Cibuntu, Desa Padabeunghar dan Desa Kaduela. Responden yang diwawancarai sebanyak 90 responden. Berdasarkan hasil penelitian diketahui bahwa masyarakat di sekitar kawasan Taman Nasional Gunung Ciremai memiliki persepsi yang tinggi terhadap Taman Nasional Gunung Ciremai. Masyarakat berpendapat bahwa Taman Nasional Gunung Ciremai bermanfaat dalam kehidupannya dan pengelolaan Taman Nasional Gunung Ciremai semakin baik. Berdasarkan hasil skoring dari 90 responden 70 diantaranya memiliki persepsi yang tinggi terhadap pengendalian kebakaran hutan di Taman Nasional Gunung Ciremai yang artinya masyarakat sebagian besar sudah ikut berpartisipasi dalam upaya pengendalian kebakaran hutan.
Keyword: Forest fire control, community role, National Park

Judul: The Construction of Greedy SVP LLL Algorithm
Abstrak: A lattice is a set of all integer linear combination of a set of linearly independent vectors in ℝ𝑛���. The independent vectors are called bases of lattice. Any lattice can be generated from many bases, and these bases have the same cardinality. In the lattice, the most fundamental and renowned problem is the Shortest Vector Problem (SVP). SVP is a tracking problem of the shortest nonzero vector in a lattice with equivalent bases. In two dimensions, SVP problem has resolved exactly by Gauss’ algorithm. When the lattice dimension is higher than two, A.K. Lenstra, H.W. Lenstra and L. Lovasz gave a LLL algorithm to compute approximation of nonzero shortest vector in the lattice. Reduced bases solution obtained from LLL algorithm still be an approximation and has polynomial running time of arbitrary dimension which large enough. In 1994, Schnoor and Euchner modified this LLL algorithm as a new variant which later was named deep insertion LLL algorithm. This algorithm is a modified version of the LLL algorithm to the terms of the exchange step to improve the accuracy of output of LLL reduced bases and applying it to the subset sum problem. The purpose of this research are: (1) Reconstruct the LLL algorithm and deep insertion LLL algorithm using a geometric approach. (2) Construct a greedy SVP LLL algorithm. (3) Implement the three algorithms in a symbolic programming language, and evaluate them experimentally. A bases ℬ=[𝐛���1,𝐛���2,…,𝐛���𝑛���] in ℝ𝑚��� is called reduced LLL with parameter 𝛿��� if satisfies: (a) |𝜇���𝑗���𝑖���|≤12, for every integer 𝑖���,𝑗��� with 1≤𝑖���<𝑗���<𝑛���. (b)𝛿���‖𝜋���𝑗���(𝐛���𝑗���)‖2≤‖𝜋���𝑗���(𝐛���𝑗���+1)‖2, for 𝑗���=1,2,…,𝑛���−1,where 𝛿��� is a reduced parameter of real numbers with 14<𝛿���<1. The first requirement is the reduced basis 𝛿��� must “nearly orthogonal” and in its computation case, this requirement can be reached out by using the Gram-Schmidt’s orthogonalization. While the second requirement is called exchange step, or used to called as Lovasz condition. By using both of these requirements, then they establish the LLL algorithm. Then, Schnoor and Euchner modify the LLL algorithm based on the requirements of the exchange step called the deep insertion LLL algorithm, where the exchange step is based on the comparison of the projected vector in orthogonal complement [𝐛���1,𝐛���2,…,𝐛���𝑘���−1]⊥ after j-th reduction. To construct greedy SVP LLL algorithm, the requirements of the exchange step is based on purely by comparing norm of lattice 𝐛���𝑗��� with norm lattice 𝐛���𝑖��� for 𝑖���=1,2,3…,𝑗���−1. The process of insertion reduced vector after the exchange step also has done greedily. Then, we calculate the number of arithmetic operation in greedy SVP LLL algorithm for further analysis. The result of our exprimentation for three algorithms on the certain matrix size shows that the running time of the three algorithms increases propotional to the size of the matrix. The result also shows that by using 𝛿���=34 for the LLL algorithm and the deep insertion LLL algorithm, and the greedy SVP LLL algorithm which is a new variant made by using no parameter of 𝛿���, outperform of the other of two previous algorithm in terms of speed with the same output.
Keyword: LLL algorithm, LLL deep insertion algorithm, greedy SVP LLL algorithm