TAILIEUCHUNG - Data Mining and Knowledge Discovery Handbook, 2 Edition part 50

Data Mining and Knowledge Discovery Handbook, 2 Edition part 50. Knowledge Discovery demonstrates intelligent computing at its best, and is the most desirable and interesting end-product of Information Technology. To be able to discover and to extract knowledge from data is a task that many researchers and practitioners are endeavoring to accomplish. There is a lot of hidden knowledge waiting to be discovered – this is the challenge created by today’s abundance of data. Data Mining and Knowledge Discovery Handbook, 2nd Edition organizes the most current concepts, theories, standards, methodologies, trends, challenges and applications of data mining (DM) and knowledge discovery. | 470 Swagatam Das and Ajith Abraham over the world till date. The major hurdle in this task is that the functioning of the brain is much less understood. The mechanisms with which it stores huge amounts of information processes them at lightning speeds and infers meaningful rules and retrieves information as and when necessary have till now eluded the scientists. A question that naturally comes up is what is the point in making a computer perform clustering when people can do this so easily The answer is far from trivial. The most important characteristic of this information age is the abundance of data. Advances in computer technology in particular the Internet have led to what some people call data explosion the amount of data available to any person has increased so much that it is more than he or she can handle. In reality the amount of data is vast and in addition each data item an abstraction of a real-life object may be characterized by a large number of attributes or features which are based on certain measurements taken on the real-life objects and may be numerical or non-numerical. Mathematically we may think of a mapping of each data item into a point in the multi-dimensional feature space each dimension corresponding to one feature that is beyond our perception when number of features exceed just 3. Thus it is nearly impossible for human beings to partition tens of thousands of data items each coming with several features usually much greater than 3 into meaningful clusters within a short interval of time. Nonetheless the task is of paramount importance for organizing and summarizing huge piles of data and discovering useful knowledge from them. So can we devise some means to generalize to arbitrary dimensions of what humans perceive in two or three dimensions as densely connected patches or clouds within data space The entire research on cluster analysis may be considered as an effort to find satisfactory answers to this fundamental question. The task .

TỪ KHÓA LIÊN QUAN
TAILIEUCHUNG - Chia sẻ tài liệu không giới hạn
Địa chỉ : 444 Hoang Hoa Tham, Hanoi, Viet Nam
Website : tailieuchung.com
Email : tailieuchung20@gmail.com
Tailieuchung.com là thư viện tài liệu trực tuyến, nơi chia sẽ trao đổi hàng triệu tài liệu như luận văn đồ án, sách, giáo trình, đề thi.
Chúng tôi không chịu trách nhiệm liên quan đến các vấn đề bản quyền nội dung tài liệu được thành viên tự nguyện đăng tải lên, nếu phát hiện thấy tài liệu xấu hoặc tài liệu có bản quyền xin hãy email cho chúng tôi.
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.