Context Mediation among Knowledge Discovery Components Ebook

, ,
Publication: Dissertation.Com
Is my Device Supported?

You're about to purchase a Downloadable Ebook

Hi, sorry for the interruption!
We're repeating some important information here to ensure that you're making an informed purchase. Please review it.

  • Don't get caught unaware. Preview ebook and open the sample ebook on each of your intended devices before continuing.
  • You will need a Free 3rd-party application that can read the intermediate .acsm file you will receive as download. PDF/Epub format is downloaded automatically by the application thereafter. Please install the necessary software first on your intended device of use.
  • - Printing 25 pages every 30 days is allowed.
    - Copying 25 text selections every 30 days is allowed.
  • Refund Policy
    Refunds are not allowed after the ebook is opened so please open the ebook directly on your intended device. Refund requests should be recieved within 7 days after download is made available. Of course, if you get an incorrect ebook ( different from what is mentioned in the title) or if the ebook doesn't open on the initial device, then we'll assist with fixing the issue or get you a refund if a timely fix isn't available.
  • Customer Service
    We currently only provide ticket (online form submission) or email support. Rest assured that you're in good hands; customers like our professional service!
I have previewed the ebook and read the requirements and terms.

Language: English
Publication Date: October 2005
Pages: 214
File Size: 3198 Kbytes

Restrictions set by Publisher:
- Text-to-speech feature is available.
- Printing 25 pages every 30 days is allowed.
- Copying 25 text selections every 30 days is allowed.
- Free application Adobe Digital Editions, Aldiko reader, or Bluefire reader required .
Change Region
ISBN: 9781599422282   Should I buy this Ebook?   Write a Review


Context Mediation is a field of research that is concerned with the interchange of information across different environments, which provides a vehicle to bridge semantic gaps among disparate entities. Knowledge Discovery is concerned with the extraction of actionable information from large databases. A challenge that has received relatively little attention is knowledge discovery in a highly disparate environment, that is multiple heterogeneous data sources, multiple domain knowledge sources and multiple knowledge patterns. This thesis tackles the problem of semantic interoperability among data, domain knowledge and knowledge patterns in a knowledge discovery process using context mediation. Context fundamentals are introduced, which encompasses the concepts of context identity, semantic values, contextual equivalence, contextual orders, contextual distances, inheritance of contexts and inter-ontology relationships. Based on this foundation, the principles of context mediators for data, domain knowledge and knowledge patterns are outlined, a context mediator prototype is developed and performance tests are carried out. Expanding on these rudimentary elements, context mediation is introduced for data, domain knowledge and knowledge patterns. Contextual data mediation is concerned about semantic conflicts among heterogeneous data sources which are used as input for knowledge discovery. In order to treat contexts as first class citizens and allow inheritance as well as overloading and overriding operations, an object data model has been chosen, namely ODMG. In addition to extending the ODMG meta model, its object definition language and object query counterpart have been extended appropriately. Contextual domain knowledge mediation deals with the integration of pre-existing knowledge about data, preferences and biases ubiquitous in multiple contexts, which are incorporated in the knowledge discovery process. Different types of contextual domain knowledge are formulated, namely taxonomies, constraints, user preferences and previously discovered knowledge. In order to allow the support of subjective and objective domain knowledge, context mediation among different domain knowledge entities is proposed which is compatible with the context mediation formulated earlier. Contextual knowledge pattern mediation is concerned with the interpretation of the outputs from data mining algorithms from different perspectives. An object-oriented framework is presented that models the output of virtually any knowledge discovery exercise. Based on the proposed framework, two operations are developed which allow the viewing or interpreting of data mining output within different contexts. Contextual ranking allows the ordering of information based on qualitative and quantitative information. Three manipulative operations are introduced which provide a further vehicle to tailor knowledge sets, namely balancing, boosting and inversion. Comparison of discovered knowledge provides a powerful mechanism to evaluate the equivalence between two or more knowledge patterns or pattern objects. A summary value is introduced which is used to calculate pattern equivalence and example summary values have been given for segments and associations. All presented techniques, methods and models are applied in real-world scenarios, covering disciplines from a wide range of industry, namely web mining and marketing, manufacturing, meteorology and internationalisation. When feasible, industry standards were utilised, for instance ODMG, PMML and KQML. The carried out research has resulted in almost fifty international publications, including the co-authorship of a book, a journal editorship and one conference best paper award.


Should you buy this Ebook?

We've put together a collection of resources to help you make a decision regarding whether you should buy this Ebook from us.

  1. Is your device one of these? Ebook reading software will work on the following devices: Windows, Mac, Android 2.2+ Devices, IPad (iOS 3+), IPhone (iOS 3+), Kindle Fire. Several other devices are also supported by the software.
  2. Compare prices. Our price is $13.00. If you would like to research our competitors to see their prices. Here're some places to look:
  3. Why should you buy Ebooks from

    We've had 1000s of downloads so far and with over 300000+ Ebooks to choose from, is becoming a favorite Ebook Store for many. Allow us to win you over with our competitive pricing, upfront policies and diligent customer service.

    We're Upfront:

    • Every Ebook page on has information on restrictions that publishers have placed on the Ebook along with a clear indication of software required to read the Ebooks.
    • If ratings for an Ebook are available from one of several sources online, then we've attempted to get those to help you make a better purchasing decision about the Ebook. Reviews from Goodreads (a popular reviews site) are provided on the same if they're available.
    • In most cases, we've also attempted to get you links to the Ebook on our competitor's site so that you can compare prices with relative ease.
    • We use McAfee to scan for any vulnerabilities in the system to ensure that any information that you give us does not fall into the wrong hands.
    • We use Paypal, a trusted 3rd party payment provider to accept Payments -- your payment information doen't reside with us. Any information that does end up with us is safe.

After installing the appropriate app for your device, try a Sample Download (Sherlock Holmes from Project Gutenberg) before purchase. The sample is only for checking device compatibility.

Check below for device compatibility and any free 3rd-party software requirements. Choice of what ebook reading app to use is yours, we only present a few common apps that several customers of ours have preferred. You should be able to transfer your purchase to more than one (upto 6) compatible devices as long as your ebook-reading apps have been registered with the same Adobe ID before opening the file.


Windows/Mac PC or Laptop

Free app Adobe Digital Editions required. Note that this software is not the same as Adobe Reader.


Android 2.1+

Free app Aldiko Reader or Bluefire Reader required.

Kindle Fire (and any Android based Kindle models)

Free Kindle Android app Bluefire Reader required.


IPad or IPhone

Free app Bluefire Reader required. Kindly review their tutorial for the requirement (note that while they're talking about library ebooks, same applies to your purchased .acsm file) -- feel free to use the sample download for testing. Tutorial .

Other E-Reader

Several Other devices supported

Devices like Nook are supported via the free application Adobe Digital Editions . This software is not the same as Adobe Reader. Please check compatibility of your device before purchase.

Context Mediation among Knowledge Discovery Components