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Analysis of murder rate prediction model case study

Wednesday, 06 January 2010 18:59 Yasser Almohammad

( 23/6/2008)

Abstract

Crime rate prediction models are intriguing, because there is no magic formula for human actions and reactions within the surrounding local and global conditions. Recently many models were studied and introduced depending on many factors which might affect such rates, and analysts are usually asked whether crime will increase or decrease, and by using past figures along with other factors an estimated figure could be presented, they are quit vital for policy makers and planners who could incorporate such numbers into crime prevention programs.

And since the magic formula doesn’t exist in this case, many assumptions are made of the factors that might affect crime rates, including: unemployment, deprivation, political instability, public awareness, police and government efforts to prevent crimes, other interesting models even include natural disasters and how they affect crime rates, as crime rates increase with the more damage they produce(Diana Ehlers, 1998).

Last Updated on Friday, 15 January 2010 18:09 Read more...

Reading Program's Memory and finding the pointers of a target variable address using Cheat engine

Monday, 04 January 2010 21:06 Yasser Almohammad

(23/6/2009)

this article was created based on a Threadi had on a gaming-programming forum that provides some tutorials of how to find basepointer using cheat engine for an online game called (Archlord)... the methodology in this Thread is general, and can be used on any other program-game.... how ever each needs its own case stufy to find the right address and the addresses are mostlikely to change if the version of the software changes(and new content was added which might change the base addresses and the offsets)

this thread contains videos of how to find you hp and ur target's hp base address using cheat engine in Archlord, along with a mini-simple tool written in C# that uses this info to find ur hp and ur target's hp by reading the process memory also the source code (for whom ever wants to use it in his own bot possibly!) ---> finding base address isnt always easy, it has try-and-error, interacting with the client to gather more info using CE... the initial 1098 value of the target mob could be replaced by another char (like open another client and use another char of urs which u know its hp, that is if u dont have the mobs list with their ids and hp vals -- or could be approximated into a range by dealing damage and approximating the value... -)
Last Updated on Thursday, 07 January 2010 19:21 Read more...

Database System, Data Warehouses Article

Wednesday, 06 January 2010 18:46 Yasser Almohammad

(23/6/2008 )

Abstract

Nowadays the economy is basically characterized by the rapid and ever changing market and the many available business opportunities. Thus to be successful it is quit vital for an enterprise to be able to make the appropriate decisions and to make them fast, such decisions are made depending on the past and current position of the enterprise and by analyzing the market demands, and that’s where data warehouse roles comes in which is the basis for decision making.

Data warehouse systems have become an important component of the corporate information system architecture, and in Decision Support Systems DSS they play such a crucial role to get all sorts of information which participate in the company current and future planning and decision making process.

Data warehouse systems have grown rapidly since they first emerged as a simple centralized repositories of cash-register to become a complete platform which integrates and federates data and practices sophisticated data analysis operations over these datasets, there for there was a tremendous shift in the kinds of operations done by a data warehouse systems, the services offered also in the wide acceptance of such systems in the industry these days.

Last Updated on Friday, 15 January 2010 18:06 Read more...

Simple Distributed Database Management System Using PVM (part1)

Tuesday, 05 January 2010 15:35 Yasser Almohammad

(22/05/2004)

Introduction:

we need to build a database engine which can do all jobs on a specific database, for databases on several computers or clients to communicate they use clusters, each computer must have only one cluster, one cluster connects to one database engine, one database engine can serve unlimited number of local databases, Clusters make all the databases in the network available to any client program, so from the client or user point of view, it will be one system.

The client programs can work on any database on any system using the cluster, when a client program runs it looks for the first available cluster and connects to it, starting from the local machine, unlimited clients can connect to the same cluster at the same time (the only limitation is the network speed), unlimited clients can be active even on the same computer, the cluster do all the coordinating and communication with other clusters, it directs the client calls to the engine or to the right cluster depending on the data base name, the other cluster in turn directs the calls to his engine (or even to another cluster) to serve the caller, the client doesn’t have to know anything about the network structure or distribution to work.

The figure in the following page describes what is happening (or what must happen in our system):