نتایج جستجو برای: ensemble strategy
تعداد نتایج: 383926 فیلتر نتایج به سال:
مقاله حاضر به بررسی سودمندی رگرسیونهای تجمیعی و روشهای انتخاب متغیرهای پیشبین بهینه (شامل روش مبتنی بر همبستگی و ریلیف) برای پیشبینی بازده سهام شرکتهای پذیرفته شده در بورس اوراق بهادار تهران میپردازد. بهمنظور ارزیابی عملکرد رگرسیون تجمیعی، معیارهای ارزیابی (شامل میانگین قدرمطلق درصد خطا، مجذور مربع میانگین خطا و ضریب تعیین) مربوط به پیشبینی این روش، با رگرسیون خطی و شبکههای عصبی مصنوعی...
The advent of New Zealand’s world-leading Digital Strategy underpins the increasing importance of ICTs in community settings. It also marks a significant change in government policy and the first time a government has adopted a whole of government approach to ICTs. This article provides a personal view of the policy process for creating the Digital Strategy, presented by one of the participants...
This paper will discuss recent initiatives to encourage the development of broadband networks in New Zealand. It is widely believed that the availability of good quality broadband will lead to improved economic development at the regional level. This paper considers the role played by both national and regional government in improving access to broadband. At a national level the government has ...
Organizations are increasingly adopting digital strategies and investing heavily in digital technologies and initiatives. However, to date, there does not appear to be a clear understanding of digital strategies and their purpose, which forms the motivation for this research. This research-in-progress study aims to address this research gap by exploring 1) the various conceptions of digital str...
•Many parents use multiple monitoring strategies in different combinations over time to monitor their adolescents.•Adolescents of parents who use multiple strategies reported greater risk involvement.•Parents who solicited information only from adolescents had greater knowledge and adolescent disclosure.
The focus of this paper is on developing ways to evaluate teaching performance on a regular basis as a means of improving teaching effectiveness and increasing student learning in the classroom. In particular, this paper shows how an instructor-developed pretest, when given at the start of an introductory economics course as part of a preand post-test strategy, can be used as a diagnostic and d...
This paper investigates the effect of diversity caused by Negative Correlation Learning(NCL) in the combination of neural classifiers and presents an efficient way to improve combining performance. Decision Templates and Averaging, as two non-trainable combining methods and Stacked Generalization as a trainable combiner are investigated in our experiments . Utilizing NCL for diversifying the ba...
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