نتایج جستجو برای: unbalanced input

تعداد نتایج: 230027  

2014
Aditya Tayal

Kernel methods are a popular choice in solving a number of problems in statistical machine learning. In this thesis, we propose new methods for two important kernel based classification problems: 1) learning from highly unbalanced large-scale datasets and 2) selecting a relevant subset of input features for a given kernel specification. The first problem is known as the rare class problem, whic...

Claudia Behrend, Javad Karimzad Hagh, Mir Davood Omrani, Mitra Ansari Dezfouli, Sadaf Omori Sarabi, Seyed Behrooz Mohseni, Seyed Khalil Rashidi,

Background: Mosaicism of a normal cell population and an unbalanced autosomal chromosome rearrangement is rarely seen. If the abnormal cell line contributes to a minor part of soma, the phenotype is expected to be normal. Case Report: We report a 29-year-old woman who had balance chromosomal translocation of 46,XX,t(5;21) with a 2-year-old affected girl, characterized by mental retardation, dys...

2014

Location S1A1 S1A2 S2A1 S2A2 Fig. 1 Design for the estimation of the random components of uncertainty arising from both the sampling and the analytical procedures. (A) Balanced design. (B) Unbalanced design. An empirical estimation of the random components of measurement uncertainty arising from the sampling and analytical processes can be made via an experiment involving replication. Analysis ...

Development of distributed generations’ technology, trends in the use of these sources to improve some of the problems such as high losses, low reliability, low power quality and high costs in distributed networks. Choose the correct location to install and proper capacity of these sources, such as important things that must be considered in their use. Since distribution networks are actu...

2013
Andrea Dal Pozzolo Olivier Caelen Serge Waterschoot Gianluca Bontempi

State-of-the-art classification algorithms suffer when the data is skewed towards one class. This led to the development of a number of techniques to cope with unbalanced data. However, as confirmed by our experimental comparison, no technique appears to work consistently better in all conditions. We propose to use a racing method to select adaptively the most appropriate strategy for a given u...

2003
A. Tenhunen

In induction machines, an eccentrically positioned rotor experienced a strong unbalanced pull toward the short side of the air gap. The non-symmetric flux distribution due to the eccentricity induces circulating currents in the rotor cage and parallel branches of the stator winding. These currents equalise the flux distribution and reduce the unbalanced magnetic pull. In this paper, the effects...

2013
T. Murali Krishna N. V. Ramana S. Kamakshaiah

This paper presents a novel distribution power flow algorithm to estimate losses and analyze unbalanced distribution systems. An unbalanced distribution network is decomposed into clusters. The unbalanced laterals are solved using the backward/forward sweep method in each phase. The clustering of total network makes faster computation. The three phase modeling of all the distribution transforme...

1998
W. Xu S. J. Ranade

Harmonics related concerns were initially centered at a few large harmonic-producing devices until the early 1980s. Because these devices, such as HVDC and SVC, and their supply systems are well balanced among three phases, harmonic analysis based on positive sequence network representations was generally sufficient. The situation has changed significantly in recent years. More and more harmoni...

Journal: :Journal of physics 2023

Abstract In this work we address the problem of phase sensitivity optimization for an unbalanced Mach-Zehnder interferometer. While quantum Fisher information can be employed in order to obtain optimum transmission coefficient first beam splitter, is no longer true second one, whose detection-scheme dependent. We thus consider three commonly used detection schemes and provide optimal solution e...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی شریف 1369

اغلب پروسس هایی که در صنایع و به خصوص صنایع شیمیایی وجود دارند ورودی و خروجی های متعددی دارند. کنترل این پروسس ها که به نام : mimo (multiple input-multiple - output) معروفند، به سادگی کنترل سیستم های تک ورودی و تک خروجی : siso (single input single output) نمی باشد. زیرا سیستم های mimo تداخلی بوده و استفاده از حلقه های متعدد به فرم معمول در اغلب موارد پاسخ های مناسبی بوجود نخواهد آورد. به همین د...

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