نتایج جستجو برای: data organizationmethod
تعداد نتایج: 2410153 فیلتر نتایج به سال:
The purpose of this paper is to improve the modeling of the data-driven wind turbine system that receives data from noise signals. Most of the data on industrial systems is noisely and data noise is inevitable and natural. The method and idea proposed in this paper, Data Fogging, significantly reduce the impact of noise on data-driven wind turbine system modeling, which is the basis of this met...
The growing amount of information that has arisen from emerging technologies has caused organizations to face challenges in maintaining and managing their information. Expanding hardware, human resources, outsourcing data management, and maintenance an external organization in the form of cloud storage services, are two common approaches to overcome these challenges; The first approach costs of...
In the classical data envelopment analysis (DEA) models, inputs and outputs are assumed as known variables, and these models cannot deal with unknown amounts of variables directly. In recent years, there are few researches on handling missing data. This paper suggests a new interval based approach to apply missing data, which is the modified version of Kousmanen (2009) approach. First, the prop...
Over the last 20 years, and particularly with the advent of Big Data and analytics, the research area around Data and Information Quality (DIQ) is still a fast growing research area. There are many views and streams in DIQ research, generally aiming at improving the effectiveness of decision making in organizations. Although there are a lot of researches aimed at clarifying the role of BIG data...
This paper introduces discretionary imprecise data in Data Envelopment Analysis (DEA) and discusses the efficiency evaluation of Decision Making Units (DMUs) with non-discretionary imprecise data. Then, suggests a method for evaluation the efficiency of DMUs with non-discretionary imprecise data. When some inputs and outputs are imprecise and non-discretionary, the DEA model becomes non-linear ...
به منظور بررسی تاثیر ویزگیهای درون شرکتی بر اهرم مالی در شرکتهای پذیرفته شده در بورس اوراق بهادار تهران 52 شرکت فعال از سال1383 تا1387 در بورس اوراق بهادار تهران به عنوان نمونه انتخاب گردیده است.برای انجام اینکار از ترکیب داده های مقطعی و سری زمانی (داده های تلفیقی ) استفاده میشود. به اینصورت که با استفاده از متدولوزی داده های تلفیقی (panel data) رابطه بین متغیرها ارزیابی و آزمون میشود و برای ب...
the purpose of the present study was to investigate the latent pattern underlying reading ability . some 272 male and female participants. english majors at the ba level , participated in the study. two valid tests were used in this study, the reading test developed exclusively for the purpose of this project and academic reading section of ielts. to investigate the possible latent underlying...
این پژوهش با هدف بررسی تاثیر صنعت بانکداری بر بهبود فضای کسب و کار در کشورهای منتخب توسعه یافته و در حال توسعه طی سال های 2008 تا 2012 صورت گرفته است. رتبه فضای کسب و کار که از طریق شاخص های 10گانه مطرح در بانک جهانی بدست می آید، بعنوان متغیر وابسته در نظر گرفته شده است. ضریب نفوذ بانکداری و ضریب تراکم بانکداری، متغیرهای مستقل مدل در نظر گرفته شده اند. برای بررسی فرضیه های پژوهش از مدل پانل دیت...
After collecting data, in researches, the type of data distribution must be determined; since any analysis requires the distribution of its own data. Soil properties, such as salinity, are also the same case. Due to its direct and indirect effects on plant growth, soil salinity is an important feature that has always been investigated in agriculture and natural resources, leading to a lot of re...
Data envelopment analysis (DEA) is an approach to measure the relative efficiency of decision-making units with multiple inputs and multiple outputs using mathematical programming. In the traditional DEA, it is assumed that we know the input or output role of each performance measure. But in some situations, the type of performance measure is unknown. These performance measures are called flexi...
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