Architecture of data mining system

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This document discusses data mining and the architecture of data mining systems. It describes data mining as extracting knowledge from large amounts of data. The architecture of a data mining system is important, with a good system facilitating efficient and timely data mining tasks. Different levels of coupling between data mining systems and database/data warehouse systems are described, including no coupling, loose coupling, semi-tight coupling, and tight coupling. Tight coupling provides the most integrated and optimized system but is also the most complex to implement.

PRESENTED BY,
S .Nandhini
I- Msc(CS&IT)
NADAR SARASWATHI ARTS
AND SCIENCE COLLEGE,
THENI.

DATA MINING:
Data mining refers to extracting or
“mining” knowledge from large amounts of
data. Also referred as knowledge discovery in
databases.
ARCHITECTURE OF DATA MINING
SYSTEM:
*The architecture and design of a
data mining system is critically important.
*A good system architecture will
facilitate the system to make best use of the
software environment,accomplish data mining
tasks in an efficient and timely manner.

ARCHITECTURE OF DATA MINING DIAGRAM
Data Selection
Data integration
database
Data
warehouse
World
wide web
Other
informatio
n repostior
Database/data warehouse server
Database engine
Data/pattern evaluation
Graphical user interface
Knowledge
base

Data mining system can be integrated with a
DB/DW system using the following coupling
schemes:
 NO COUPLING
 LOOSE COUPLING
 SEMI-TIGHT COUPLING
 TIGHT COUPLING

NO COUPLING:
No coupling means that a DM system
will not utilize any function of a DB or DW
system.
It may fetch data from a particular
source process data using some data mining
algorthims, and then store the mining result in
another file.
DM system may spend a substantial
amount of time finding,collecting,cleaning, and
transforming data.
No coupling represents a poor design.

LOOSE COUPLING:
* Loose coupling means that a DM
system will use some facilities of a DB or DW
system.
*Fetching data from a data repository
managed by these system,performing data mining
and then storing the mining results either in file or
in a designated place in a database or data
warehouse.
Advantages of the Flexibility, efficiency,
and other features provided by such systems.
loose coupling to achieve High Scalability
and good performance with large data sets.

SEMI-TIGHT COUPLING:
Semitight coupling means that
besides linking a DM system to a DB/DM
system.
These primitives can include
sorting,indexing,aggregation,histogram
analysis,multiway join,and precomputation of
some essential statistical measures.
such as sum,count,max,min,standard
deviation

TIGHT COUPLING:
 Tight coupling means that a DM system is smoothly
integrated into DB/DM system.
 Data mining queries and functions are optimized
based on mining query analysis,data
structures,indexing schemes,and query processing
methods of a DB or Dw system
 Efficient implementations of data mining
functions,high system performance, and an
integrated information processing environment.

Loose coupling though not efficient is
better than no coupling since it makes use of
both data and system facilities of a DB/DW
system.
Tight coupling is highly desirable but
its implementation is nontrivial and more
research is needed in this area.
Semitight coupling is a compromise
between loose and tight coupling.

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Congress,[x] and a new mood in Britain for rapid decolonisation in India.[y][41][44] Bose's legacy is mixed. Among many in India, he is seen as a hero, his saga serving as a would-be counterpoise to the many actions of regeneration, negotiation, and reconciliation over a quarter-century through which the independence of India was achieved.[z][aa][ab] His collaborations with Japanese Fascism and Nazism pose serious ethical dilemmas,[ac] especially his reluctance to publicly criticize the worst excesses of German anti-Semitism from 1938 onwards or to offer refuge in India to its victims. Chittaranjan Das, a voice for aggressive nationalism in Bengal. In 1923, Bose was elected the President of Indian Youth Congress and also the Secretary of the Bengal State Congress. He became the editor of the newspaper "Forward", which had been founded by Chittaranjan Das.[81] Bose worked as the CEO of the Calcutta Municipal Corporation for Das when the latter was elected mayor of Calcutta in 1924.[82] During the same year, when Bose was leading a protest march in Calcutta, he, Maghfoor Ahmad Ajazi and other leaders were arrested and imprisoned.[83][failed verification] After a roundup of nationalists in 1925, Bose was sent to prison in Mandalay, British Burma, where he contracted tuberculosis.[84] Subhas Bose (in military uniform) with Congress president, Motilal Nehru taking the salute. Annual meeting, Indian National Congress, 29 December 1928 In 1927, after being released from prison, Bose became general secretary of the Congress party and worked with Jawaharlal Nehru for independence. In late December 1928, Bose organised the Annual Meeting of the Indian National Congress in Calcutta.[85] His most memorable role was as General officer commanding (GOC) Congress Volunteer Corps.[85] Author Nirad Chaudhuri wrote about the meeting: Bose organized a volunteer corps in uniform, its officers were even provided with steel-cut epaulettes ... his uniform was made by a firm of British tailors in Calcutta, Harman's. A telegram addressed to him as GOC was delivered to the British General in Fort William and was the subject of a good deal of malicious gossip in the (British Indian) press. Mahatma Gandhi as a sincere pacifist vowed to non-violence, did not like the strutting, clicking of boots, and saluting, and he afterward described the Calcutta session of the Congress as a Bertram Mills circus, which caused a great deal of indignation among the Bengalis.[85] A little later, Bose was again arrested and jailed for civil disobedience; this time he emerged to become Mayor of Calcutta in 1930.[84] Chittaranjan Das, a voice for aggressive nationalism in Bengal. In 1923, Bose was elected the President of Indian Youth Congress and also the Secretary of the Bengal State Congress. He became the editor of the newspaper "Forward", which had been founded by Chittaranjan Das.[81] Bose worked as the CEO of the Calcutta Municipal Corporation for Das when the latter was elected ma

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