Judul: Efektivitas Sistem Penilaian Kinerja (DP2K) terhadap Pengembangan Karir Karyawan Level Pimpinan Kantor Direksi PT Perkebunan Nusantara VIII
Abstrak: Penelitian ini membahas mengenai efektivitas sistem penilaian kinerja melalui DP2K terhadap pengembangan karir karyawan level pimpinan pada kantor direksi PTPN VIII. Dilatarbelakangi adanya permasalahan mengenai pelaksanaan penilaian kinerja melalui DP2K yang masih dilakukan sebatas formalitas penilaian dan tidak sesuai pedoman yang telah ditetapkan. Metode yang digunakan adalah analisis deskriptif dan regresi linear berganda. Penelitian ini bertujuan untuk mengetahui persepsi dan tingkat pengaruh efektivitas dari sistem penilaian kinerja (DP2K) terhadap pengembangan karir karyawan. Sampel yang digunakan dalam penelitian ini berasal dari level pimpinan sebanyak 61 orang. Hasil analisis deskriptif menyatakan tingkat persepsi karyawan level pimpinan terhadap sistem penilaian kinerja belum sepenuhnya efektif namun persepsi terhadap pengembangan karir telah dijalankan dengan efektif. Berdasarkan penghitungan pengaruh sistem penilaian kinerja terhadap pengembangan karir karyawan menyatakan keduanya berpengaruh, namun berdasarkan indikator sistem penilaian kinerja hanya kepekaan, keterandalan, dan dapat diterima yang telah dijalankan secara efektif terhadap pengembangan karir.
Keyword: efektivitas, persepsi, pengembangan karir, sistem penilaian kinerja

Judul: Alternatif Strategi Penerapan Penilaian Kinerja Individu pada PT Perkebunan Nusantara VIII
Abstrak: Dalam menciptakan dan memelihara keunggulan perusahaan membutuhkan kontribusi dari Sumber Daya Manusia (SDM). Saat ini PTPN VIII sedang merancang Key Performance Indicator (KPI) individu yang digunakan sebagai tolak ukur dalam menilai kinerja karyawan. Penelitian ini bertujuan untuk mengidentifikasi kondisi penilaian kinerja individu saat ini berdasarkan faktor penentu, dan menganalisis faktor, aktor serta merumuskan tujuan dan strategi. Metode analisis data yang digunakan adalah analisis deskriptif dan Analytical Hierarchy Process (AHP). Teknik penarikan sampel dengan teknik purposive sampling yaitu sebanyak 7 pakar. Berdasarkan AHP, faktor penilaian kinerja individu yang paling berkontribusi adalah reliability (keterandalan), aktor dominan adalah Kadiv Modal Manusia, tujuan terpenting adalah menghubungkan antara visi misi, tata nilai, strategi perusahaan dan sasaran kinerja. Strategi terbaik adalah menyusun sistem yang memonitor dan mengevaluasi jalannya pelaksanaan penilaian kinerja individu dengan mengadakan forum People Review, penambahan frekuensi penilaian, dan menggunakan metode penilaian kategori.
Keyword: Analytical Hierarchy Process, penilaian kinerja, strategi

Judul: Algorithm construction of HLI hash function
Abstrak: Cryptography is a study of mathematical techniques related to aspects of information security regarding on confidentiality, data integrity, entity authentication, and data origin authentication. Data integrity is a service, which is associated with the conversion of data carried out by unauthorized parties. To maintain data integrity, one can use hash functions. An hash function is a computationally efficient function to map an arbitrary length bitstring to a fixed length bitstring called as hash value. The use of hash function in maintaining the information integrity and authentication is in digital signatures, virus protection, and software distribution. Illustration of the hash function in the integrity and authentication of information that is emailed as follow. The sender sends the information and hash value to the recipient. If the hash value of the information is equal to the hash value that is sent by the sender, then information has not been changed. Otherwise the information has been changed. An hash function has two properties, one way and collision resistance. An hash function is called one way if it is computationally infeasible to find any input such that when given any hash value . Meanwhile an hash function is called collision resistant if it is computationally infeasible to find any two inputs where such that . The purpose of this study is to construct a HLI hash function algorithm, to analyze the speed and security of the hash functions as a results of construction. Furthermore, it is to compare it with SWIFFT. Hash function is constructed based on the result of algebraic operations on modular polynomial ringwith . Modular polynomial ring noted as is a set of all polynomials of degree at most with coefficients in . can be represented as a set of integer vector of modulo in dimension . So, it is simple to implement in a computer. In vector operations, is lattice . Furthermore, alattice that is defined from certain polynomial ring is called ideal lattice. HLI hash function is consists of addition and multiplication algorithm in the ring. Addition algorithm consists of sumation operations of modulo and multiplication consists of multiplication operations of modulo . Generally, algorithm of HLI hash function consists of multiplication operations of modulo and addition operations of modulo . However, if the input is binary number then multiplication algorithm only consists of multiplication operation of modulo , so algorithm of HLI hash function consists of multiplication operations of modulo and addtion operations of modulo . An hash function is secured if it has two properties, i.e., one way and collision resistance. HLI hash function hash is one way, it is following the proof of Micciancio. It is has collision resistant because of polynomial is irreducible over and monic. Moreover, it is proved that for every unit vector , the vector is small vector. If the input of hash function is a binary number then HLI hash function only involves addition operations of modulo . So the time that used almost same with SWIFFT. The excellence of HLI hash function is the key size smaller than SWIFFT. This effect on
Keyword: hash function, modular polynomial ring, lattice