Ongoing Research P. Krishna Reddy IIIT, 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 T 1 releases lock on X T 1 completes work on X T 1: T 2: r 1[X] w 1[X'] r 1[Y] w 1[Y'] s 1 e 1 c 1 r 2[X] w 2[X'] r 2[Z] w 2[Z'] s 2 e 2 (i) 2 PL T 1: T 2: r 1[X] w 1[X'] r 1[Y] w 1[Y'] s 1 s 2 e 1 T 21 r 2[X'] w 2[X"'] r 2[Z] w 2[Z"] time c 1 r 2[X] w 2[X"] r 2[Z] w 2[Z'] T 22 c 2 (ii) SL e 2 c 2 time 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
Data and Web data mining • 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.
ICTs for Social Development • Through e. Sagu, 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 Development ICTs-based Agricultural Education • Existing framework – Agricultural experts visit land 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 Development ICTs-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 (DWOC 3) – e. Sagu Clinic – Field visits
ICTs for Social Development ICTs-based Agricultural Education • DWOC 3 contains – Data warehouse of virtual farm observation concepts which are captured through multimedia data including text, photos, video, audio. – DWOC 3 contains farm situations indexed based on various concepts in a multidimensional manner.
ICTs for Social Development ICTs-based Agricultural Education • In e. Sagu. Clinic, – 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 e. Sagu local centers. – The students are exposed to e. Sagu. Clinic to learn the practical aspects. • Field visits – The students are exposed to field visits.
ICTs for Social Development Build farmer ERP • Formal Problem Statement: Given – – – a region (say r 1, r 2…rl) , number of farms (f 1, f 2…fm), types of soil of each form (s 1, s 2…sn), crop grown in each farm (c 1, c 2…co), variety of the crop (v 1, v 2…vp), weather type (w 1, w 2…wq), water availability (wa 1, wa 2…war), labor availability (la 1, la 2…las), machines (c 1, c 2…cu) the farmer can invest (m 1, m 2…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 Development Improving 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).
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