On The Insider: Britney's Bikini-Clad Top 10
BNET Business Network:
BNET
TechRepublic
ZDNet

FREE Registration is required

Overview:

Data mining algorithms use various Trie and bitmap-based representations to optimize the support (i.e., frequency) counting performance. This paper compares the memory requirements and support counting performance of FP Tree, and Compressed Patricia Trie against several novel variants of vertical bit vectors. First, borrowing ideas from the VLDB domain, they compress vertical bit vectors using WAH encoding. Second, they evaluate the Gray code rank-based transaction reordering scheme, and show that in practice, simple lexicographic ordering, obtained by applying LSB Radix sort, outperforms this scheme.

(Is this item miscategorized? Does it need more tags? Let us know.)

Format:PDFSize:307 KB
Date:Aug 2007
Pages:10

Top results from Data Mining - Analysis

White Paper Social CRM Comes of Age
White Paper Designing High Availability for SQL Server 2005
Download Technical On Demand Teleconference: Managing large objects in a DB2 for z/OS environment - tips and techniques
White Paper Choosing a Standard for BI and Reporting: Simplify the IT Environment Reduce Your TCO Increase Your ROI.
Case Study Medical Device Company Gains Cost-Effective Business Intelligence Solution

» View all Data Mining - Analysis listings

advertisement

White Papers, Webcasts, and Resources

Featured Training Courses

advertisement

Enterprise Applications

  • Check out some of the easiest and most powerful ways to boost productivity while saving money on your application infrastructure. See ZDNet's comprehensive Enterprise Application resource center, now!
  • New Online Dashboard
  • Read about top issues IT decision-makers face every day, plus get cost effective solutions to real life IT problems. Oracle Topline

Returning users: Log In Here!

Already registered on BNET, TechRepublic, or ZDNet? Simply log in.

Free Membership: Sign Up Now!

Sign up for a free membership today and get instant and unlimited access to one of the largest databases of white papers, webcasts, and casestudies anywhere. Your FREE membership allows you to:

  • Download an unlimited amount of content, including classic and current white papers, case studies, webcasts and more
  • Track content on your chosen topics of interest
  • Receive targeted email alerts when your favorite content is added
  • Save content for future reading
  • Receive our member newsletter

When you register to access this library, you allow us to share your information with companies that produce products or services featured in the library--so that such companies may contact you with information and offers regarding their products and services. This enables us to keep the library a free service. As a library registrant, you will receive a complimentary subscription to the ZDNet white paper newsletter and e-mail Must-Read News Alerts. You can unsubscribe from these at any time. By clicking the Sign up button, you indicate that you agree to our Terms and Conditions and have read and understand our Privacy Policy (updated).