Exploiting Homogeneity of Density in Incremental Hierarchical Clustering

Hierarchical clustering is an important tool in many applications. As it involves a large data set that proliferates over time, reclustering the data set periodically is not an efficient process. Therefore, the ability to incorporate a new data set incrementally into an existing hierarchy becomes increasingly demanding. This article describes HOMOGEN, a system that employs a new algorithm for generating a hierarchy of concepts and clusters incrementally from a stream of observations. The system aims to construct a hierarchy that satisfies the homogeneity and the monotonicity properties. Working in a bottom-up fashion, a new observation is placed in the hierarchy and a sequence of hierarchy restructuring processes is performed only in regions that have been affected by the presence of the new observation. Additionally, it combines multiple restructuring techniques that address different restructuring objectives to get a synergistic effect. The system has been tested on a variety of domains including structured and unstructured data sets. The experimental results reveal that the system is able to construct a concept hierarchy that is consistent regardless of the input data order and whose quality is comparable to the quality of those produced by non incremental clustering algorithms

Pengembangan Soal Tes Pilihan Ganda Kompetensi Sistem Starter Dan Pengisian Program Keahlian Teknik Mekanik Otomotif Kelas XII

This research aim to get the problem of tes of double helix of interest of systemof starter and admission filling owning good quality, through problem development ofpursuant to problem analysis qualitative and quantitative. Research method used bydescriptive method, this research there no sampel of because research conductedrepresent the good research population. Problem fulfilling conditions analyse qualitativeas well as after conducted by a quantitative analysis own the level of problem difficultyrange from 0,30 up to 0,70, different energy of bigger problem than 0,30, distraktorselected by 5% from entire competitor tes, and above reliabilitas problem 0,50. Problemconsistence of between tes 1 and tes 2 calculated by using formula of correlation ofproduct moment, if rhitung of bigger than rtabel with the level signifikansi 5% problem isconsistence. Problem of Tes of double helix to be made by a evaluation appliance oughtto be conducted by development of problem tes by analysis of problem item qualitativeand quantitatively before used to measure the achievement of result of learning student

Ekstraksi Dan Klasifikasi Tekstur Citra Sel Nukleus Pap Smear

— This paper presents a texture analysis and comparison of clasification of cell nucleus images. Texture analysis will be focused on the nuclei of Image Pap smear cell. The method of analysis texture is the statistical second order of Grey Level Co-occurrence Matrix (GLCM). There are five parameter that will be extracted, viz. contrast, correlation, energy, homogeneity and entropy. The image nuclei used in this work are cropped images from Herlev data bank. The images from 917 subjects are categorized into seven classes. Three classes of which are normal cell image class categories that include: Normal Superficial, Normal Intermediate, and Normal Columnar, and the other four classes are categories of abnormal cell image class that include: Mild (Light) Dysplasia, Moderate Dysplasia, Severe Dysplasia and Carcinoma In Situ. The process of texture analysis developed using grayscale 8 bit level. The preprocessing of images will be conducted before texture analysis in order to improve contrast in nuclei. Based on the numerical result of all parameter, class normal and abnormal of Pap smear image have slightly different properties for correlation, energy, homogeneity and entropy. Originally, there have been 18 fetures of texture which were created to classify into two classes by decision tree classifier, ie normal and abnormal cell. The experimental study shows that in two-class classification, normal and abnormal based on the texture features and using the Decision Tree learning algorithm (J48) classifiers with the Weka Correctly Classification Instances (CCI) and Kappa Coefficient classification performance measures, the Decision Tree learning algorithm (J48) classifier performs the best with the CCI of 73.8277% and the Kappa Coefficient of 0.2785. Keywords — Pap smear images, nucleus, texture, GLCM, classification, decision tree, cervical cance

Model Virtual Laboratory Fisika Modern Untuk Meningkatkan Keterampilan Generik Sains Calon Guru

: We have developed a virtual laboratory for teaching modern physics. The purpose of this study is to examine the effectiveness of a virtual laboratory model of modern physics on students\u27 generic science skills. The study involved 64 students who were divided into two groups, the experimental group and control group. The research instrument used a generic science skills test that is integrated with the mastery of concepts of modern physics. Data were analyzed by using mean-difference test and normalized gain scores. The results showed an increase in generic science skills in both groups. Indicators showed that the highest increases are logical inference capability and the ability to build concepts. These results indicate that the virtual laboratory model of modern physics is effective in enhancing generic science skills of students

Methodology for Constructing Form Ontology

Form ontology was built to complement the knowledge   base   of   XReformer   system,   a   system   to generate web forms design automatically with case-based reasoning  (CBR)  approach.  Case  base  is  used  to  store cases of form design while the ontology is used to define forms and its elements and the relationship between them as well as between the elements itself. The ontology acts as a small-scale knowledge base that can grow to become a big one. The existing ontology development methodologies were too complicated and mature and they were feasible to apply on a large scale ontology. Certainly, it was not efficient to build a small-scale ontology with these highly- discipline  methodologies.  In  this  paper,  we  propose  a simple ontology development methodology but covers all important aspects of the development of ontologies, as an alternative to the existing methodologies

An Integrated New Course Book in Learning and Using English for Social Domains of English Partial Immersion Program at Vocational High Schools Sebagai Buku Acuan Berbahasa Inggris untuk SMK Bilingual di Daerah Istimewa Yogyakarta

Penelitian ini merupakan penelitian lanjutan hibah bersaing yang dilakukan oleh Andayani, Rahmi D., dkk (2007 dan 2008) yang bertujuan untuk membuat model pembelajaran English Immersion Program dan sosialisasi model tersebut di sekolah bilingual di DIY untuk kelas Bahasa Inggris dan MIPA. Hasil penelitian selanjutnya berupa buku ajar untuk kelas bilingual sebagai masukan kebijakan bagi institusi terkait dan untuk meningkatkan produktivitas sumber daya manusia dengan hasil perbukuan nasional berjudul: (a). An Integrated New Course Book In Learning And Using English For Social Sciences for English Partial Immersion Class Program for the VII Grade Students, (b). An Integrated New Course Book In Learning And Using English For Languages and Literatures for English Partial Immersion Class Program for the VII Grade Students. Hasil penelitian 2013 juga telah diterbitkan oleh The Language Institute of Thammasat University dalam international proceeding di Thailand, The 3rd International Conference on Foreign Language Learning and Teaching: Research, Renovation, and Reinforcement: Enhancing Quality in Language Education, dengan judul “The English Partial Immersion Model at Junior International School of Yogyakarta, Indonesia”. Desain penelitian berupa descriptive qualitative dan quantitative. Data berupa ujaran lisan dan bahasa tertulis, sumber data adalah siswa, guru, dan kepala sekolah di SMK domain Sosial, stakeholders, dan para peserta workshop. Alat pengumpul data berupa video, tape recorder, buku panduan, dan catatan-catatan lapangan, sedangkan instrumen penelitian berupa human instrument (key instrument) yang dilengkapi dengan kuesioner tentang uji coba buku ajar untuk SMK domain Sosial yang berupa The Bilingual Partial Immersion Course. Sedangkan uji validitas dilakukan dengan cara (1) triangulasi, (2) pemeriksaan sejawat, (3) uji coba buku dan (4) pencocokan hasil analisis terdahulu. Diharapkan dengan terwujudnya pembuatan buku di tahun ke 2 ini, guru-guru tersebut memiliki buku teks sebagai buku pegangan kelas bilingual khususnya untuk SMK domain Sosial. Target penelitian adalah memberi masukan kepada pembuat kebijakan pendidikan, 1 | Integrated New Course Book in Learning and Using English for Social Domains of English Partial Immersion Program at Vocational High Schools Sebagai Buku Acuan Berbahasa Inggris untuk SMK Bilingual di Daerah Istimewa Yogyakarta seperti Mendiknas, Direktorat Menengah Kejuruan terutama berkaitan dengan penunjukan sekolah yang dijadikan model untuk sekolah bilingual di Indonesia. Target lain berupa peningkatkan kinerja sumber daya manusia, kualitas pengajaran dan inovasi pendidikan, produktivitas, efisiensi internal, dan efisiensi eksternal, serta bahan kebijakan nasional dengan terwujudnya buku acuan yang berjudul AN INTEGRATED NEW COURSE BOOK IN LEARNING AND USING ENGLISH FOR SOCIAL DOMAINS OF ENGLISH PARTIAL IMMERSION PROGRAM AT VOCATIONAL HIGH SCHOOLS

PENGEMBANGAN BAHAN AJAR BAHASA INGGRIS BERBASIS K-13 BERORIENTASI PADA HIGHER ORDER THINKING SKILLS DAN PENEKANAN PADA LOCAL WISDOM

Penelitian ini bertujuan untuk mengembangkan bahan ajar Bahasa Inggris berbasis K-13 dengan berorientasi pada Higher Order Thinking Skills (HOTS) dan kearifan lokal (local wisdom) bagi peserta didik di Sekolah Menengah Atas (SMA) di Daerah Istimewa Yogyakarta (DIY). Penelitian ini merupakan penelitian dan pengembangan. Pada tahun pertama penelitian ini menekankan analisis kebutuhan terkait dengan learning needs dan target needs yang digunakan sebagai dasar pengembangan bahan ajar Bahasa Inggris berbasis K-13 dengan berorientasi pada HOTS dan local wisdom bagi peserta didik SMA di DIY. Hasil analisis kebutuhan digunakan untuk mengembangkan draf bahan ajar termaksud. Dalam melaksanakan analisis kebutuhan, penelitian ini melibatkan 8 guru bahasa Inggris dan 395 peserta didik jurusan IPA dan IPS dari 8 SMA yang berbasis budaya di Kabupaten Sleman, Kabupaten Bantul, dan Kotamadya Yogyakarta DIY. Untuk pengumpulan data tersebut digunakan instrumen berbentuk lembar angket dan panduan wawancara. Data berbentuk kualitatif yang diperoleh dianalisis dengan menggunakan deskriptif kualitatif Produk yang dihasilkan pada tahun pertama ini berupa draf bahan ajar bahasa Inggris berbasis K-13 dengan berorientasi pada HOTS dan local wisdom dengan berdasarkan pada hasil analisis kebutuhan yang sudah dilakukan

May Measurement Month 2018: a pragmatic global screening campaign to raise awareness of blood pressure by the International Society of Hypertension

Aims Raised blood pressure (BP) is the biggest contributor to mortality and disease burden worldwide and fewer than half of those with hypertension are aware of it. May Measurement Month (MMM) is a global campaign set up in 2017, to raise awareness of high BP and as a pragmatic solution to a lack of formal screening worldwide. The 2018 campaign was expanded, aiming to include more participants and countries. Methods and results Eighty-nine countries participated in MMM 2018. Volunteers (≥18 years) were recruited through opportunistic sampling at a variety of screening sites. Each participant had three BP measurements and completed a questionnaire on demographic, lifestyle, and environmental factors. Hypertension was defined as a systolic BP ≥140 mmHg or diastolic BP ≥90 mmHg, or taking antihypertensive medication. In total, 74.9% of screenees provided three BP readings. Multiple imputation using chained equations was used to impute missing readings. 1 504 963 individuals (mean age 45.3 years; 52.4% female) were screened. After multiple imputation, 502 079 (33.4%) individuals had hypertension, of whom 59.5% were aware of their diagnosis and 55.3% were taking antihypertensive medication. Of those on medication, 60.0% were controlled and of all hypertensives, 33.2% were controlled. We detected 224 285 individuals with untreated hypertension and 111 214 individuals with inadequately treated (systolic BP ≥ 140 mmHg or diastolic BP ≥ 90 mmHg) hypertension. Conclusion May Measurement Month expanded significantly compared with 2017, including more participants in more countries. The campaign identified over 335 000 adults with untreated or inadequately treated hypertension. In the absence of systematic screening programmes, MMM was effective at raising awareness at least among these individuals at risk