Library Catalog System

A library catalog system keeps records for al bibliographic items .

Bibliographic items:

• books
• computer files
• graphics
• realia,
  
• cartographic

Before librarian keep their records by using library cards. Still, we can find it some places. After coming to www, people are interested to see any information by internet (you can download or access pdf format of book so that you do not need to go library physically)

History:
AS far I know from history, library catalogues are introduced by in the house of wisdom. Then, there was a big collections of books of 7th and 8th centuray in Iraq during Islamic Renaissance. They used totally different catalogue syem in their library.

Later on , Hulagu khan attacked Iraq and distroyed and burnt all books.

Ref:http://liswiki.org/wiki/History_of_the_card_catalog

Here is some wonderful tools for cataloging
Ref : http://www.lib.berkeley.edu/Catalogs/

Holly Ramadan

Allah has given us lots of things, but we always forget to show our respect/ sacrifices to him. Today is our holly Ramadan. I am praying to God so that I can keep my fasting. Generally people think, you can not do work if you keep your fasting. I, myself believe that I do my best work in Ramadan. Anyway, Back to my thesis writing .

Semantic heterogeneity and factors

I was thinking to write about semantic heterogeneity for a long time. Its big problem for semantic matching purpose. Since my thesis on matching between two controlled vocabulary.

In short , I found some factors for heterogeneity problem:

• Time (Vocabulary changes time-to-time)
• place( after 50 miles , a new language starts, for example , italian langauge of trentino people is different than bolzano people or Distinct language in india for every states).
• cultural diversity( English people say centre , American people say center).
• structure of vocabulary (there is no unique presentation of vocabulary, for example some people use rdf files , some people use xml files)

Heterogeneity problem

• Syntactic heterogeneity
• Terminological heterogeneity(Paper vs Article)
• Conceptual heterogeneity is also called semantic heterogeneity.
  
• Semiotic heterogeneity
  

Is social networking problem?

At night, this question came to my mind whether social networking are good or bad or time consuming? I was thinking to write something on it.


As we know that social networking sites( facebook, myspace, friends, h15) are growing popularity everyday. Is this popular only 15-20 aged people or 21-30 or 31-48 so on . I think that mostly people are aged 17-19 are very crazy for facebook. I had a small research on it. I asked a couple people and found out that they are basically using facebook for making new friend. Guys are poking girls and girls are also watching guys faces and physics. I asked myself , "Is it usful or not useful or time consuming". One sense it is useful , you can make good and new friend. On the hand , it is simply time consuming and u can use this time for other purpose. so it is giving any impact for young people with earlier age.


if you consider the group 21-35 then you can find out that most of people are using to communicate with their school or college or university friends or official colleaguge .I do not support those people who are using or browsing facebook at the office. if you spend 15 min or 20 min everyday on facebook then u can wast 1 h official time. It was new about one official person that he told his boss about sickness but boss saw him in facebook and got angry and fired him from job. This kind of cases are coming now the days. I am not saying you should not use it . I can say that you can use it but you should also respect your official time and work.

I think we should use social network site after official hours. or you can use it as learning or group meeting purpose.

but age group 36- 48 use social network site for finding their old school buddies. They are not so frequent on it. They are happy to see and communicated people.

However, we can make it useful :
1. Teacher can open a page for his course and make open discuss through it.
2. We can make meeting schedule among the group.
3. Publish some useful information so that people can get some knowledge.