Contains fulltext :
                  103612.pdf (publisher's version ) (Closed access

Wingen, G.A. van

Geuze, E.

Caan, M.W.A.

Kozicz, L.T.

Olabarriaga, S.G.

Denys, D.A.J.P.

Vermetten, E.

Fernandez, G.S.E.

Due to increasing of measurement performance necessity and pH controlling on laboratory scale and industry, it needs to make measurement system that can give the best performance with the high accuracy and robust with the disturbance and noise. Sensor of pH measurement is combination electrode with voltage output. This is influenced by hydrogen ion and liquid temperature. It will lead error if there is temperature changing in the measured process. In order to solve this problem, it needs pH measurement device that can measure pH without disturbed by temperature changes. ANFIS (Adaptive Neuro Fuzzy Inference System) can be used for identifying the voltage due from hydrogen ion and temperature changes. So, the pH measurement would be robust to temperature changes. Based on this result study, precision and accuracy device are 1.91% and 0.45% in the pH range 2-10.6 and temperature range 10-80oC. This gives conclusion that ANFIS can decrease pH reading error because of temperature changes. Abstract in Bahasa Indonesia : Seiring dengan meningkatnya kebutuhan performansi pengukuran dan pengendalian pH baik dalam skala laboratorium maupun industri maka perlu dibuat sistem pengukuran yang mampu memberikan performansi yang baik dengan akurasi yang memadai dan tahan terhadap ganguan dan noise. Sensor yang digunakan pada pengukuran pH adalah elektroda kombinasi dengan output tegangan. Tegangan tersebut selain dipengruhi oleh kehadiran ion hidrogen juga sangat dipengaruhi oleh temperatur larutan, sehingga akan terjadi kesalahan yang berarti bila ada perubahan temperatur pada proses yang diukur. Untuk mengatasi hal tersebut maka perlu dibuat alat ukur pH yang mampu mengukur pH tanpa terpengaruh oleh perubahan temperatur. Salah satu caranya adalah dengan memanfaatkan ANFIS (Adaptif NeuroFuzzy Inference System) untuk mengindentifikasi tegangan yang dihasilkan oleh kehadiran ion hidrogen dan tegangan yang disebabkan oleh perubahan temperartur, sehingga hasil pengukuran dapat relatif stabil terhadap ganguan temperatur. Dari hasil pengujian diperoleh kepresisian alat hasil perancangan sebesar 1.91% dan keakurasian sebesar 0.45%, dengan range pengujian pH 2-10.6 dan pada range temperatur 10 - 80 oC. Sehingga pengukuran pH berbasis ANFIS mampu mengatasi kesalahan pembacaan pH akibat perubahan temperatur. Kata kunci: pengukuran pH, kompensasi temperatur, ANFIS

Totok R. Biyanto

Directory of Open Access Journals

Jurnal Informatika

ADAPTIF NEUROFUZZY INFERENCE SYSTEM UNTUK PENGUKURAN pH

Association rules that involve two or more dimensions or predicates can be referred as multidimensional association rules. Rather than searching for frequent itemsets (as is done in mining single-dimensional association rules), in multidimensional association rules, we search for frequent predicate sets. In general, there are two types of multidimensional association rules, namely interdimension association rules and hybrid-dimension association rules. Interdimension association rules are multidimensional association rules with no repeated predicates. This paper introduces a method for generating interdimension association rules. A more meaningful association rules can be provided by generalizing crisp value of attributes to be fuzzy value. To generate the multidimensional association rules implying fuzzy value, this paper introduces an alternative method for mining the rules by searching for the predicate sets

Intan, R. (Rolly)

Neliti

A Proposal of Fuzzy Multidimensional Association Rules

Intan, Rolly

English

A PROPOSAL OF FUZZY MULTIDIMENSIONAL ASSOCIATION RULES

A Contour map is commonly displayed in two dimensional view, where the earth's contours captured from above the earth. A Two dimensional contour map often difficult to express the earth's surface velocity. The problem arose when trying to visualize a contour map in three dimension environment, is about how to connect each contour lines that exist within the two dimensional contour map. In order to solve that problem, writer creates an algorithm that able to convert earth's coordinate data into a collection of polygonal mesh data. Conversion process is done by using a square polygon web. At the beginning, the square polygon web was set flat at the height of 0 meter. Then, every vertex on the square polygon web must be altered to the same height as the height of the contour map at the same coordinate. Experiments conducted shows that the square polygon web, which the height has been altered, able to display earth's contours in three-dimensional view.


Abstract in Bahasa Indonesia : 

Pada umumnya peta kontur disajikan dalam sudut pandang dua dimensi, dimana kontur dilihat dari atas permukaan bumi. Penyajian peta kontur secara dua dimensi sering kali sulit memberikan gambaran mengenai ketinggian dari permukaan bumi yang sedang diamati. Permasalahan yang muncul ketika akan melakukan visualisasi peta kontur secara tiga dimensi adalah bagaimana cara menghubungkan garis kontur yang satu dengan yang lain. Permasalahan tersebut muncul karena sering kali data peta kontur yang didapat hanya berupa data koordinat bumi dari tiap kontur yang ada. Untuk memecahkan permasalahan tersebut, penulis membuat sebuah algoritma yang dapat meng-konversi kumpulan data koordinat bumi menjadi kumpulan data koordinat mesh polygon yang merupakan komponen penyusun objek tiga dimensi. Pembentukan data koordinat mesh polygon dilakukan dengan memanfaatkan sebuah jaringan poligon bujur sangkar yang menutupi seluruh daerah peta kontur. Pertama-tama, jaringan poligon bujur sangkar diletakkan mendatar pada ketinggian 0 meter. Kemudian tiap vertex pada jaringan poligon bujur sangkar akan diubah ketinggiannya sesuai dengan ketinggian peta kontur pada koordinat sumbu X dan Y yang sama dengan koordinat X dan Y vertex. Hasil pengujian menunjukkan bahwa jaringan poligon, yang ketinggian tiap vertexnya telah disesuaikan dengan ketinggian peta kontur, dapat menggambarkan kontur permukaan bumi secara tiga dimensi.

Kata kunci: peta kontur, koordinat bumi, konversi, mesh polygon, tiga dimensi

Jimmy, Jimmy

Petra Christian University, Surabaya, Indonesia: Peer-Reviewed Scientific e-Journal

VISUALISASI PETA KONTUR DALAM SUDUT PANDANG TIGA DIMENSI

Three-Phase Dependency Analysis (TPDA) algorithm was proved as most efficient algorithm (which requires at most O(N4) Conditional Independence (CI) tests). By integrating TPDA with "node topological sort algorithm", it can be used to learn Bayesian Network (BN) structure from missing value (named as TPDA1 algorithm).  And then, outlier can be reduced by applying an "outlier detection & removal algorithm" as pre-processing for TPDA1. TPDA2 algorithm proposed consists of those ideas, outlier detection & removal, TPDA, and node topological sort node

Sitohang, Benhard

Saptawati, G.A. Putri

TPDA2 ALGORITHM FOR LEARNING BN STRUCTURE FROM MISSING VALUE AND OUTLIERS IN DATA MINING

Usually we use paper to draw sketch of room for designing building. Using paper can cause a problem especially for changing the sketch or size of the room. To solve that problem, we can use software to design sketch of the room. Nowadays there are many software can be used but many of those can only view in two dimension, top side. Using only two dimensions viewing, user have difficulties to imagine the real room in three dimensions. Also there are software which can view in three dimensions, but unfortunately the price of those software is so high. In this paper, we implement software to help user to design the sketch of the room in two dimensions, but the result can be viewed in three dimensions. In three dimensions view, user can do movement like view the real world. This software also can be used to create building have multi level, and the accessories that can be used are floor, wall, door, window and stair. To implement this software we use OpenGL library

Adipranata, R. (Rudy)

liliana, L. (Liliana)

Pribadi, Y. (Yohanes)

Pembuatan Perangkat Lunak Editor Denah Ruang 2d Untuk Divisualisasikan Secara 3d

Usually we use paper to draw sketch of room for designing building. Using paper can cause a problem especially for changing the sketch or size of the room. To solve that problem, we can use software to design sketch of the room. Nowadays there are many software can be used but many of those can only view in two dimension, top side. Using only two dimensions viewing, user have difficulties to imagine the real room in three dimensions. Also there are software which can view in three dimensions, but unfortunately the price of those software is so high. In this paper, we implement software to help user to design the sketch of the room in two dimensions, but the result can be viewed in three dimensions. In three dimensions view, user can do movement like view the real world. This software also can be used to create building have multi level, and the accessories that can be used are floor, wall, door, window and stair. To implement this software we use OpenGL library. Abstract in Bahasa Indonesia : Untuk merancang denah ruang pada sebuah bangunan, biasanya dilakukan penggambaran sketsa ruang yang diinginkan pada kertas. Tidak semua orang, terutama orang yang awam terhadap bidang arsitektur, membayangkan sebuah gambar denah sebagai ruangan akan sangat menyulitkan. Untuk menjembatani antara perancang dengan pelanggan, antara rancangan denah dalam bentuk 2D dengan visualisasi dalam bentuk 3D, maka dalam penelitian ini dikembangkan sebuah perangkat lunak yang mampu menghasilkan visualisasi bentuk sebuah ruang dari inputan berupa gambar denah 2D tampak atas. Dengan adanya fasilitas editor pada perangkat lunak ini, maka perancang dapat melakukan perubahan denah ataupun ukuran yang sudah tergambar dan langsung menampilkan hasil visualisasinya. Oleh karena itu, pada penelitian ini, dikembangkan pembuatan perangkat lunak editor denah ruang secara 2D yang dapat langsung divisualisasikan dalam bentuk 3D dengan ukuran yang sama dengan yang diinputkan pada gambar denahnya. Pada visualisasi yang berbentuk 3D, pengguna dapat melakukan penjelajahan ruang seperti berada pada ruang secara nyata. Pada perangkat lunak ini, bangunan dapat dibuat bertingkat dan bagian ruang yang disediakan adalah lantai, dinding, pintu, jendela serta tangga. Perangkat lunak yang dihasilkan mampu menampilkan visualisasi dalam bentuk 3D secara nyata. Kamera dapat diletakkan di sembarang tempat dan kemudian menggeser-geser posisinya dengan menggerakkan kursor. Kata kunci: editor denah ruang, 2D, 3D, visualisasi, OpenG

Rudy Adipranata

Liliana liliana

Yohanes Pribadi

PEMBUATAN PERANGKAT LUNAK EDITOR DENAH RUANG 2D UNTUK DIVISUALISASIKAN SECARA 3D

Alphanumerical password is the password scheme that obligates the users to enter characters as their password. In spite of its popularity, alphanumerical password usually can be cracked easily when it is used by novice users. Since these users usually type their password slowly, unauthorized person can get the password easily by observing the movement of the users' finger as they entering the password. A graphical password is proposed to replace the alphanumerical password. From the experiment it can be shown that none of users graphical password can be cracked, meanwhile 80% of the users' alphanumerical password can be cracked by the researcher. However in average, users need only 4.68 seconds to enter the password in alphanumerical password scheme, meanwhile in graphical password scheme it takes about 39.06 seconds. Hence password entry in the graphical password scheme needs about 8 times longer than in alphanumerical password. Based on this fact, the graphical password may still be considered to be used in applications that do not need a rapid password entry and the system security is becoming the main issue

Hartanto, Budi

Santoso, Bagus

Welly, Siauw

THE USAGE OF GRAPHICAL PASSWORD AS A REPLACEMENT TO THE ALPHANUMERICAL PASSWORD

NARCIS 

Persistent and reversible consequences of combat stress on the mesofrontal circuit and cognition

Bivariate Marginal Distribution Algorithm is extended from Estimation of Distribution Algorithm. This heuristic algorithm proposes the new approach for recombination of generate new individual that without crossover and mutation process such as genetic algorithm. Bivariate Marginal Distribution Algorithm uses connectivity variable the pair gene for recombination of generate new individual.  Connectivity between variable is doing along optimization process. In this research, genetic algorithm performance with one point crossover is compared with Bivariate Marginal Distribution Algorithm performance in case Onemax, De Jong F2 function, and Traveling Salesman Problem. In this research, experimental results have shown performance the both algorithm is dependence of parameter respectively and also population size that used. For Onemax case with size small problem, Genetic Algorithm perform better with small number of iteration and more fast for get optimum result. However, Bivariate Marginal Distribution Algorithm perform better of result optimization for case Onemax with huge size problem. For De Jong F2 function, Genetic Algorithm perform better from Bivariate Marginal Distribution Algorithm of a number of iteration and time. For case Traveling Salesman Problem, Bivariate Marginal Distribution Algorithm have shown perform better from Genetic Algorithm of optimization result

Fatichah, C. (Chastine)

Kusuma, I. A. (Imam)

Purwananto, Y. (Yudhi)

Studi Perbandingan Antara Algoritma Bivariate Marginal Distribution Dengan Algoritma Genetika

https://media.neliti.com/media/publications/104081-ID-visualisasi-peta-kontur-dalam-sudut-pand.pdf

Persistent and reversible consequences of combat stress on the mesofrontal circuit and cognition

Abstract

Similar works

Full text

Available Versions

Directory of Open Access Journals

Neliti

Jurnal Informatika

Petra Christian University, Surabaya, Indonesia: Peer-Reviewed Scientific e-Journal

Jurnal Informatika

Neliti

Directory of Open Access Journals

Jurnal Informatika

NARCIS

Neliti