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Pure negation query in lucene
In many information-retrieval system, you can use queries like “term1 AND (NOT term2)” but you ca...
Lucene term documents and term positions
IntroductionTerm documentsFor each term T, there are (doc frequency of the term) tuples of <do...
Lucene spans
IntroductionIn Lucene, a span is a triple (i.e. 3-tuple) of <document number, start position, ...
Access denied error when installing Windows XP Service Pack 3
When attempting to upgrade Windows XP systems to Service Pack 3, you get one of the following err...
Simplifying web-based processes with CoScripter
“IBM has a very cool Firefox-only plugin called CoScriptor which is sort of a macro recorder for...
Effect of file operations on its own and its parent directory's modification times
\ File added File modified File renamed File deleted File Y Y N N/A Parent d...
X11 on MacBook Pros
As of August 2007, Apple made a real effort to hide X11 on Tiger install disks for MacBook Pros. ...
PHP and ODBC
While looking for something else in the Moodle Forums, I found these links that refer to the unde...
PHP ODBC Setup Guide
Guide to setting up php-odbc for connection to Registrar database. Example for RedHat EL 5.Create...
How do I get my Scantron Machine serviced?
The Scantron machine itself should have a 1-800 number listed on them. The best bet is to call t...
Performance of array_shift and array_pop in PHP
We have confirmed that array_shift is much slower than array_pop in PHP.Code:<?// Create an ar...
Outlook 2003 Error: There was an error locating one of the items
While trying to add an exchange server account the following message appeared:“There was an error...
Free/open source information retrieval libraries
What are they and why using oneInformation retrieval libraries are software libraries that provid...
Wiki Timelines
DipityIntroDipity is an AJAX web application based on MIT’s SIMILE Timeline. It can accept web f...
Social Science Simulations
Online simulations are a interesting way to present concepts and ideas visually, as well as provi...
XP Desktop Setup for AIS Remote Printing
1. Enable LPR printing services (Print Services for Unix).Click on the Start Menu then Control Pa...
Wiki Mapping
Wiki MappingThe Google Maps API and the KML mapping file format has opened up new ways of manipul...
HIPAA (Protected Health Information) Data Elements
HIPAA – Protected Health Information Patient Names Street address, city, county, zip code Dates (...
FERPA (Student Records) Data Elements
FERPA – Student Records Grades / Transcripts Class lists or enrollment information Student Financ...
SQL Injection (Application Vulnerability)
SummarySQL Injection is a type of security vulnerability that occurs when application does not pr...