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  <controlfield tag="008">210402s9999    xx            000 0 und d</controlfield>
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   <subfield code="a">Trang, Thị Mỹ Kim</subfield>
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   <subfield code="a">Cải tiến mô hình chuỗi thời gian mờ của Singh và ứng dụng :</subfield>
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   <subfield code="b">Luận văn tốt nghiệp cao học ngành: Lý thuyết xác suất và Thống kê toán học</subfield>
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   <subfield code="c">Trang Thị Mỹ Kim ; Võ Văn Tài</subfield>
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   <subfield code="a">Cần Thơ</subfield>
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   <subfield code="b">Trường Đại học Cần Thơ</subfield>
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   <subfield code="c">2020</subfield>
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   <subfield code="a">Trong dự báo, hai mô hình chính đang được sử dụng phổ biến là mô hình hồi quy và chuỗi thời gian. Nghiên cứu đề xuất một mô hình dự báo cho chuỗi thời gian dựa trên những cải tiến trong việc xác định tập nền và việc thiết lập các mối quan hệ mờ. Dựa trên mô hình của Singh (2007) và ý tưởng của Abbasov-Mamedova (2003), đề xuất một mô hình có thể mờ hóa dữ liệu và dự báo tương lai. Mô hình đề nghị được minh họa cụ thể các bước thực hiện bởi ví dụ số và được thực hiện một cách hiệu quả bằng một chương trình được thiết lập trên phân mềm thống kê R. Nó có ưu điểm hơn các mô hình dự báo phổ biến hiện tai như ARIMA và Abbasov-Mamedova (2003) qua nhiều bộ số liệu đối chứng quan trong. Mô hình đề nghị cũng được áp dụng trong dự báo một số vấn đề quan trọng ở Việt Nam. Các ví dụ và áp dụng đã cho thấy tiềm năng trong thực tế của vấn đề được nghiên cứu.</subfield>
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   <subfield code="a">Time series analysis,Phân tích chuỗi thời gian</subfield>
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   <subfield code="c">Qhieu</subfield>
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   <subfield code="a">Trung tâm Học liệu Trường Đại học Cần Thơ</subfield>
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