آماره‌های همسان و آگاهی‌بخش و کاربردهای آن

نویسندگان
1 دانشگاه کاشان
2 دانشگاه پیام نور
چکیده
در حالتی که حجم اطلاعات زیاد است، داده‌ها باید به نحوی خلاصه شوند که هیچ اطلاعات ارزشمندی از دست نرفته باشد. برای این منظور از آماره بسنده استفاده می‌شود. در این مقاله با تعریف آماره همسان، روشی برای محاسبه این آماره‌ها ارائه شده است. سپس تحت چند تابع زیان مختلف، آماره‌های آگاهی‌بخش تعریف می‌شوند. برای مشخص کردن دو ویژگی، همسانی و آگاهی‌بخشی از مفهوم بسندگی استفاده می‌شود. در پایان تحت چند تابع زیان مختلف، در حالتی که خطاهای مشاهدات گاوسی و سامانه خطی است، آماره‌های آگاهی‌بخش پیدا می‌شوند.
کلیدواژه‌ها

عنوان مقاله English

Similar and informative statistics and its applications

نویسندگان English

Mehdi Shams 1
Gholamreza Hesamian 2
1 University of Kashan
2 payame Noor University
چکیده English

In the case of large amounts of information, the data should be summarized in such a way that no valuable information is lost. Sufficient statistics are used for this purpose. In this paper, by defining similar statistics, a method for calculating these statistics is presented. Informative statistics are then defined under several different loss functions. The concept of sufficiency is used to identify two characteristics, similarity and informativeness. Finally, under several different loss functions, in the case of Gaussian observation errors and linear systems, informative statistics are found.

کلیدواژه‌ها English

Similar statistics
informative statistics
Time Series
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