ongoing research p.krishna reddy iiit, hyderabad [email protected] comad 2008
TRANSCRIPT
Core Database Systems:Transaction Management
• So far– Transaction management
• Database systems• Replicated databases
• Current work– Speculative locking
Speculative Locking: Example
r1[X] w1[X'] r1[Y] w1[Y']
s1e1 c1
s2 e2c2r2[X'] w2[X"'] r2[Z] w2[Z"]
r2[X] w2[X"] r2[Z] w2[Z']
time
(ii) SL
T1:
T2:
T21
T22
s1e1 c1
time
r1[X] w1[X'] r1[Y] w1[Y']
r2[X] w2[X'] r2[Z] w2[Z']
s2 e2c2
(i) 2PL
T1:
T2:
T1 completeswork on X
T1 releaseslock on X
Speculation trades extra processing power for performance
Core Database Systems
• Current work– Speculation to improve the performance of
read-only transactions
• Future: – Investigate how low cost CPU/main
memory CLOUD to improve application and system parallelism and build• speculative operating systems.• Speculative transaction managers• Speculative web service managers
• Extraction of rare knowledge– Rare association rules
• Improve search quality by extending ideas from social networks and other domains.
• Recommend products which for every Indian consumer.
• Create an online facility to retrieve similar judgements for lawyers and judges and reduce justice delivery period.
Data and Web data mining
• User interfaces– Designing efficient data entry
framework
– to help e-commerce customers to reduce the time to select the product
• Text mining– Exploit web directories for better text
mining.
Data and Web data mining
ICTs for Social Development
• Through eSagu, make every Indian farmer to produce 100% export quality farm produce and increase income in the order of magnitude.
Sample Photographs 2
Sample Photographs 3
Sample advices generated by Agricultural Externs
ICTs for Social DevelopmentICTs-based Agricultural Education
• Existing framework– Agricultural experts visit land and learns the applied
concepts
• Proposed framework:– AEs learn practical knowledge by exposing
themselves with huge number of farm situations captured under ICT-based learning framework
– The farm situations are captured and indexed using ICTs such as data warehousing, image processing, video, and audio.
ICTs for Social DevelopmentICTs-based Agricultural Education
• We have announced Post-graduate Diploma in applied agriculture and IT (PGDAAIT)– Similar to House surgeon course for MBBS
students.
• The ICT-based learning framework has three components– Data warehouse of crop care concepts (DWOC3)– eSagu Clinic– Field visits
ICTs for Social DevelopmentICTs-based Agricultural Education
• DWOC3 contains – Data warehouse of virtual farm observation
concepts which are captured through multimedia data including text, photos, video, audio.
– DWOC3 contains farm situations indexed based on various concepts in a multi-dimensional manner.
ICTs for Social DevelopmentICTs-based Agricultural Education
• In eSaguClinic,– a group of scientists deliver the agricultural advice
based on the crop status information received in the form of digital photos and other information.
– For PGDAAIT program, we will operate few eSagu local centers.
– The students are exposed to eSaguClinic to learn the practical aspects.
• Field visits– The students are exposed to field visits.
ICTs for Social DevelopmentBuild farmer ERP
• Formal Problem Statement: Given – a region (say r1,r2…rl) ,
– number of farms (f1,f2…fm),
– types of soil of each form (s1,s2…sn),
– crop grown in each farm (c1,c2…co),
– variety of the crop (v1,v2…vp),
– weather type (w1,w2…wq),
– water availability (wa1,wa2…war),
– labor availability (la1,la2…las),
– machines (c1,c2…cu)
– the farmer can invest (m1,m2…mt) and
– the type of market where his products can be sold.
• Find the problems that can occur in the farms of a farmer, in various stages of crop cultivation.
• Come up with an optimized plan for all the farms of a farmer, so that the magnitude of the problems can be reduced. Problem 6.
ICTs for Social DevelopmentImproving Literacy
• Build an IT-based system to provide functional literacy (read, write, simple maths) to each and every illiterate in India without disturbing his/her daily routine (earning source or power).