Identifying Groups: A Comparison of Methodologies
نویسندگان
چکیده
This paper describes and compares three clustering techniques: traditional methods, Kohonen maps latent class models. The also proposes some novel measures of the quality a clustering. To best our knowledge, this is first contribution in literature to compare these techniques context where classes are not known advance.
منابع مشابه
a comparison of linguistic and pragmatic knowledge: a case of iranian learners of english
در این تحقیق دانش زبانشناسی و کاربردشناسی زبان آموزان ایرانی در سطح بالای متوسط مقایسه شد. 50 دانش آموز با سابقه آموزشی مشابه از شش آموزشگاه زبان مختلف در دو آزمون دانش زبانشناسی و آزمون دانش گفتار شناسی زبان انگلیسی شرکت کردند که سوالات هر دو تست توسط محقق تهیه شده بود. همچنین در این تحقیق کارایی کتابهای آموزشی زبان در فراهم آوردن درون داد کافی برای زبان آموزان ایرانی به عنوان هدف جانبی تحقیق ...
15 صفحه اولa comparison of teachers and supervisors, with respect to teacher efficacy and reflection
supervisors play an undeniable role in training teachers, before starting their professional experience by preparing them, at the initial years of their teaching by checking their work within the proper framework, and later on during their teaching by assessing their progress. but surprisingly, exploring their attributes, professional demands, and qualifications has remained a neglected theme i...
15 صفحه اولassessment of deep word knowledge in elementary and advanced iranian efl learners: a comparison of selective and productive wat tasks
testing plays a vital role in any language teaching program. it allows teachers and stakeholders, including program administrators, parents, admissions officers and prospective employers to be assured that the learners are progressing according to an accepted standard (douglas, 2010). the problems currently facing language testers have both practical and theoretical implications but the first i...
A Critical Comparison of Supplier Selection Methodologies
In an extremely competitive market context, consumers demand cheaper and higher quality products, on-time delivery and excellent after-sale services. Therefore, companies are under intense pressure to cut costs while maintaining a high level of quality and after-sale services. Various studies devoted to the analysis of customer-supplier relationships highlighted that, in order to improve the qu...
متن کاملA Critical Comparison of Usability Testing Methodologies
Usability testing is critical to system success. A system, which is functionally perfect, will fail if it is too difficult to use. A recent New Zealand example is the $26 million Department of Corrections jail database system that has been reported as being so difficult to operate that staff do not use it (Boyes, 2005). There is a plethora of usability testing methodologies, yet little informat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of data science
سال: 2021
ISSN: ['1680-743X', '1683-8602']
DOI: https://doi.org/10.6339/jds.201104_09(2).0009