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2018
It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.
In this article, we discuss the powerful class of channel codes referred to as turbo codes. We commence with a brief discussion for turbo decoding algorithms. It is proposed to use an PL-log-MAP algorithm. Some numerical results and research experiments, such as simulation for bit error rate estimation for images transmission, have been presented. The performance of the PL-log-MAP algorithm is shown to have the closest performance to the original log-MAP solution.