Wednesday, December 29, 2010

Innocity Competition

Hurry! My team "Mainio" won the Innocity Competition held in Lappeenranta.
More information on http://www.innocity.fi

Sunday, June 14, 2009

Multimedia Query Optimization (Research Work)

This research paper describe a system for querying a multimedia data including Images, Audio and Video data. In contrast to previous multimedia query languages that are either designed for one particular medium or specialized for a particular application, I want to do research for the treatment of multiple media and different applications. The query for multimedia data retrieval should includes constructs to capture the temporal and spatial relationships in multimedia data as well as functions for query presentation.
In near future, the databases will include image, audio and video data in addition to traditional text and numerical data. These data types will require query methods that are more appropriate and natural to the type of respective data. For instance, a natural way to query an image database is to retrieve images based on operations on images or sketches supplied as input. Similarly a natural way of querying an audio database is to hum the tune of a song.

The complex spatial and temporal relationships inherent in the wide range of multimedia data types make a multimedia query language quite different from its counterpart in traditional DBMSs. For example, the query language of traditional DBMSs only deals with the exact-match queries on conventional data types. Although this might be sufficient to deal with queries posed against metadata or annotations of multimedia data, content-based information retrieval requires non-exact-match queries which go beyond the traditional approaches.

Powerful query languages significantly help simplify multimedia database access. These languages have to provide constructs for querying, based on the structure of multimedia documents as well their context.
To Download the presentation on Query Optimization, click the link below:

Sunday, June 7, 2009

Survey on Test Oracle Generations

Automation for software testing is a difficult and compound process. The most recognizable aspect of test automation is to organize the test cases, then running these test cases onto the system and capture the results and then verify them. For that, a set of expected results are needed to compare the actual results of the system. Generation of the expected results can be done by various techniques. The technique surveyed in this paper is Test Oracles Generation. This paper describes the purpose of oracles for various types of software testing and also survey some types of Oracles used for the Software testing.




To download the presentation, use the link:

Monday, April 6, 2009

Presentation on Searching Techniques - Hashing

  • The Linear Search (Sequential Search) is the simplest algorithm to search a specific target key in a data collection. It simply examines each element in turn, starting with the first element, until it finds the target element or it reaches at the end of array. It is also the least efficient.
  • The Binary Search is the standard method for searching through a sorted array. It is much more efficient than the linear search but it does require that the elements be in order.
  • A further search method is HASHING. Hash data structures allow the storage and retrieval of data in an average time which does not depend at all on the collection size.

Hashing refers to the conversion of a column's primary key value to a database page number on which the row will be stored. Retrieval operations that specify the key column value use the same hashing algorithm and can locate the row directly. Hashing provides fast retrieval for data that contains a unique key value. For Conversion of a value to its Database / Array index number, a Hash Function is used.

For downloading the presentation, use the link

http://www.4shared.com/file/110403351/8e2623bf/Hashing.html


(For further detail and presentation, mail me)

Tuesday, February 3, 2009

Service Oriented Architecture

You can download course book of SOA from the
link provided here. Book name is "Principles of
Service Design" by Thomas Erl.

http://www.4shared.com/file/151222808/b0c052e9/erl-soa_principles_of_service_design.html

Monday, February 2, 2009

Free Software Downloads

Download VLC Media Player
VLC media player is a highly portable multimedia player and multimedia framework capable of reading most audio and video formats (MPEG-2, MPEG-4, H.264, DivX, MPEG-1, mp3, ogg, aac ...) as well as DVDs, Audio CDs VCDs, and various streaming protocols.


http://vlc-media-player.en.softonic.com/

Download Foxit Reader
Foxit Reader is a free PDF document viewer and printer, with incredible small size, breezing-fast launch speed and amazingly rich feature set.
WinRar 3.9
RAR is a general purpose archiving and compression program competing with/replacing programs such as PKZip, ARJ, and others. It offers significantly improved compression ratios, easier use and a cheaper price as well as supporting long file names, disk spanning, and self-extracting file creation.

Thursday, September 11, 2008

Skype Free Download

Use the link below to download the Skype software for chating. Its free of cost.