internship review by jin zhao 11/02/2011. jin zhao 11/02/2011 / 12 2wing, nus

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Internship Review By Jin Zhao 11/02/2011

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Internship Review

By Jin Zhao

11/02/2011

Jin Zhao

11/02/2011 / 122WING, NUS

Jin Zhao

11/02/2011 / 123WING, NUS

Jin Zhao

11/02/2011 / 12

Research in University of Colorado at Boulder• Prof. Tamara Sumner– Curriculum Customization– QUALITY

• Prof. James Martin– General NLP (Semantic Role Labeling, Name

Disambiguation)– Medical NLP

4WING, NUS

Jin Zhao

11/02/2011 / 12

QUALITY Project• Quality indicators– 7 in total: has Instructions, has Sponsors, indicates age

range, etc.– Discovered through data analysis and expert study– Classified using SVM with text features

• Tasks– Classification on smaller text blocks– Build an IR system that utilizes quality indicator information

5WING, NUS

Jin Zhao

11/02/2011 / 12

Information Utilization in Domain-specific IR• Axes for classifying information– Type: excerpts, derived information, user-generated information– Source: intra-resource, inter-resource, external– Level: low, high– Representation: text, numbers, graphs – Size: small, medium, large

• Stages of Information Retrieval– Query formulation– Retrieval– Result Display– Result Navigation

6WING, NUS

Jin Zhao

11/02/2011 / 12

Information Utilization in Domain-specific IR• Quality Indicator Information– Scores

Derived information Intra-resource High-level Numbers Small

7WING, NUS

– Text Snippets Excerpts Intra-resource High-level Texts Medium to large

• Methods of Utilization– Query formulation

Filters and sort options

– Retrieval Filtering and sorting

– Result Display Progressive information display

–Result Navigation Filters and sort options

Jin Zhao

11/02/2011 / 12

System Screenshots• Original Digital Discovery System (DDS)

• Filters and Sort Options at Query Formulation

8WING, NUS

Jin Zhao

11/02/2011 / 12

System Screenshots• Progressive Information Display at Result Display

9WING, NUS

Jin Zhao

11/02/2011 / 12

System Screenshots• Filters and Sort Options at Result Navigation

10WING, NUS

Quality Indicator Information

Grade Level and Resource Type

Jin Zhao

11/02/2011 / 12

Lessons Learned• Adapt to the supervision and work style

• Be independent and proactive

• Enjoy oneself but stay alert!

11WING, NUS