Storage Retrieval

Download Advanced Methods for Inconsistent Knowledge Management by Ngoc Thanh Nguyen PDF

By Ngoc Thanh Nguyen

This e-book is a primary. It fills a huge hole available in the market and offers a large picture of clever applied sciences for inconsistency answer. the necessity for this solution of information inconsistency arises in lots of functional functions of desktops. this type of inconsistency effects from using a number of assets of information in figuring out useful initiatives. those assets are usually self reliant and use diversified mechanisms for processing wisdom concerning the related actual international. this may result in compatibility difficulties.

Show description

Read Online or Download Advanced Methods for Inconsistent Knowledge Management (Advanced Information and Knowledge Processing) PDF

Similar storage & retrieval books

The Functional Approach to Data Management: Modeling, Analyzing and Integrating Heterogeneous Data

It truly is over twenty years because the useful facts version and useful programming languages have been first brought to the computing neighborhood. even if built by means of separate examine groups, contemporary paintings, offered during this e-book, indicates there's robust synergy of their integration. As database know-how emerges as significant to but extra advanced and critical functions in components corresponding to bioinformatics, nationwide protection, legal investigations and complicated engineering, extra refined ways like that provided right here, are wanted.

Strategy and Architecture of Health Care Information Systems

Info expertise always adjustments and speedy turns into out of date. The method of making plans and enforcing a overall healthiness care details approach, in spite of the fact that, is extra consistent. via sensible, step by step guidance, the writer demonstrates tips on how to determine the method and structure opposed to which seller and method judgements has to be made.

Redis Cookbook: Practical Techniques for Fast Data Manipulation

Years seeing that its preliminary liberate, Redis already has a powerful checklist of adopters, together with Engine backyard, GitHub, Craigslist, and Digg. This open resource info constitution server is outfitted for velocity and adaptability, making it perfect for lots of purposes. in case you are utilizing Redis, or contemplating it, this concise cookbook presents recipes for numerous matters you are prone to face.

Extra resources for Advanced Methods for Inconsistent Knowledge Management (Advanced Information and Knowledge Processing)

Example text

A) For function c2 the proof follows immediately from the notice that Diam( W X ) ≤ Diam( W X \ X ' ). (b) For function c3 we have d(X ) = 1 M M ∑ wiX . i =1 Because for each xi ∈ X ′ there is wiX = Diam( W X ), therefore there should be d(X ) ≥ d(X \ X ') ; that is, c3(X\X ′) ≥ c3(X). (c) For function c4 the proof is similar as for function c3 ♦ This property shows another way for improving consistency referring to functions c2, c3, and c4, which is based on removing from a profile those elements generating the maximal average distance.

2. Postulates for Consistency Functions The requirements for consistency functions are expressed in the following postulates. We assume that the universe U consists at least of two elements. Let c ∈ C(U). The postulates are presented as follows. P1a. Postulate for maximal consistency: If X is a homogeneous profile then c(X) = 1. P1b. Extended postulate for maximal consistency: For Y, Z ∈ Π(U) where Y = {x} and X ( n ) = (n ∗ Y) ∪ Z being such a profile that element x occurs at least n times, and the numbers of occurrences of other elements from Z are constant, then the following equation should be true, lim c( X ( n ) ) = 1 .

In this case a consensus method enables determining such a record of data which, first, should best represent a set of data records, and, second, should be a good compromise acceptable for the participants that are in conflict. According to Barthelemy et al. [13, 14] problems considered by consensus theory can be classified into the two classes: • Problems in which a certain and hidden structure is searched • Problems in which inconsistent data related to the same subject are unified The problems included in the first class seem to be very similar to the problems of data mining.

Download PDF sample

Rated 4.04 of 5 – based on 18 votes