Ongoing Research

P.Krishna ReddyIIIT, Hyderabad

pkreddy@iiit.ac.in

COMAD 2008

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 e2 c2r2[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 e2

c2

(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).