Day: May 6, 2005

Bluetooth Technology Models and Future

Exforsys
This article discusses about various Bluetooth Technology Models & Application in the market and Bluetooth in Future. Bluetooth Technology Models & Applications HomeRF like Bluetooth is a specification for connectivity and mobility in a home-like environment. HomeRF Working Group has developed a specification for wireless communications in the home called the Shared Wireless Access Protocol (SWAP). The Federal Aviation Administration (FAA) and other aviation regulatory bodies worldwide are currently reviewing the use of Bluetooth products on private and commercial aircraft. In the U.S. the FAA is the governing body to… Read More

Bluetooth Vs 802.11b Wireless LANs

Exforsys
This article discusses about the differences between Bluetooth and 802.11b Wireless LANs, Co-existence of Bluetooth & Wi-Fi and Advantages & Disadvantages. 1) Bluetooth has lower distance range (less than 30 feet) than 802.11b (up to 200 feet). Therefore, you would need many more access points to cover the same area of an office. Simple mathematics will show that you may need as many as 20-50 times the number of access points 2) Bluetooth has generally lower speed than that of 802.11b wireless LANs. 3) Bluetooth components (chips and radios) and device… Read More

MSAS – Browsing the Dependency Network

Exforsys
The predictive model of the decision tree helps users determine whether similar cases will have a similar behavior. The attributes of the tree can be examined for impact analysis by using the Dependency Network Browser. This can be opened by right clicking on a decision tree data mining model in the Analysis services explorer tree control.   The Dependency Network Browser window contains a slider on the left and a display window on the right. It contains a Close and help button at the bottom. When the slider is moved… Read More

MSAS – Building a Relational Decision Tree Model

Exforsys
Let us assume FoodMart wants the members with Golden Membership to be studied. It wants to focus on broadening the membership of the Gold Card. This can be done now using the Decision Tree Model. The Decision Tree model can be created from the relational data contained in the FoodMart 2000 Access database. 1. In the Analysis Manager tree pane right click the Mining model folder and select New mining model… 2. In the Wizard Welcome screen click Next to proceed. 3. In the Select the source type screen select… Read More

MSAS – Introduction to Data Mining

Exforsys
The process of probing into a set of information for descriptive and predictive purposes is called data mining. The purpose is to identify those trends and patterns which indicate the direction of effort to achieve desired outcomes. SQL Server 2000 and Analysis Services, has inbuilt powerful data mining capabilities including algorithms for Clustering and for Decision Trees.Before actually studying the data mining capabilities of Analysis Services, let us briefly look at some terminology generally used while discussing data mining. Understanding Terms used in Data Mining A case is the term… Read More