2013.10.12 SLIDE 1DID Meeting - Montreal Integrating Data Mining and Data Management Technologies for Scholarly Inquiry Ray R. Larson University of California,

2013.10.12 SLIDE 1DID Meeting - Montreal

Integrating Data Mining and Data Management Technologies for Scholarly Inquiry

Ray R. Larson

University of California, Berkeley

Paul Watry Richard Marciano

University of Liverpool University of North

Carolina, Chapel Hill

2013.10.12 SLIDE 2

• Integrating Data Mining and Data Management Technologies for Scholarly Inquiry

• Goals:– Text mining and NLP techniques to extract

content (named Persons, Places, Time Periods/Events) and associate context

• Data:– Internet Archive Books Collection (with

associated MARC where available) ~7.2T– Jstore ~1T– Context sources: SNAC Archival and Library

Authority records.

• Tools– Cheshire 3 – DL Search and Retrieval

Framework– iRODS – Policy-driven distributed data storage– Amazon S3 storage and EC2 computing

DID Meeting - Montreal

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Grid-Based Digital Libraries: Needs

• Large-scale distributed storage requirements and technologies

• Organizing distributed digital collections• Shared Metadata – standards and

requirements• Managing distributed digital collections• Security and access control• Collection Replication and backup• Distributed Information Retrieval

support and algorithms

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But…

• Hasn’t Hadoop and its menagerie already solved everything?– Yes – many tasks can be done now with great

scaleup– And No – most Hadoop solutions are batch

oriented and not geared towards information access, but more towards summarization

– Maybe – we are looking at replacing or supplementing the low-level data management with Hadoop or Spark tools

DID Meeting - Montreal

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Grid/Cloud IR Issues

• Want to preserve the same retrieval performance (precision/recall) while hopefully increasing efficiency (I.e. speed)

• Very large-scale distribution of resources is (still) a challenge for sub-second retrieval

• Different from most other typical Grid/Cloud processes, IR is potentially less computing intensive and more data intensive

• In many ways Grid IR replicates the process (and problems) of metasearch or distributed search

• We have developed the Cheshire3 system to evaluate and manage these issues. The Cheshire3 system is actually one component in a larger Grid-based environment

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Cheshire3 Environment

or iRODS

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Cheshire3 IR Overview

• XML Information Retrieval Engine – 3rd Generation of the UC Berkeley Cheshire system, as co-

developed at the University of Liverpool– Uses Python for flexibility and extensibility, but uses C/C++

based libraries for processing speed– Standards based: XML, XSLT, CQL, SRW/U, Z39.50, OAI to

name a few– Grid/Cloud capable. Uses distributed configuration files,

workflow definitions and PVM or MPI to scale from one machine to thousands of parallel nodes

– Free and Open Source Software

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Cheshire3 Object Model

DID Meeting - Montreal

2013.10.12 SLIDE 9

Current Version

• iRODS and C3 on Amazon EC2 and S3

DID Meeting - Montreal

Bucket 2Bucket 2

Bucket 1Bucket 1

Amazon

S3

iRODSiRODS

Cache

Resource

Cache

Resource

Amazon

EC2

Data Ingestion

Cheshire3Cheshire3

Indexing

RetrievaliCATiCAT

Rule

Engine

Rule

Engine

Data Presentation

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Sample demo

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Summary

• Indexing and IR work very well in the Grid/Cloud environment, with the expected scaling behavior for multiple processes

• Still in progress:– We are still processing collecting the books

collection from the Internet Archive– We are still extracting place names, personal

names, corporate names and linking with reference sources (such as GeoNames, VIAF, and SNAC)

2013.10.12 SLIDE 15DID Meeting - Montreal

Thank you!

iRODS available via https://www.irods.org

Project web site http://diggingintodata.web.unc.edu

Available via https://github.com/cheshire3

Special thanks to John Harrison (Liverpool),

Chien-Yi Hou (UNC), Shreyas and Luis Aguilar (UCB)