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Search Enhancements using Natural Language Processing Techniques
NASA Goddard Earth Sciences Data and Information Services Center (GESDISC) is one of the 12 NASA Science Mission Directorate Data Centers. The main goal of GESDISC is to provide earth science data, information, and services to the earth science data community. Consequently, data discovery is at the center of our mission and our search engine is the primary tool for our users to interact, find, and access our data. Existing search approaches are largely focused on hard-matching of keywords in the search query with dataset metadata. Here we propose to expand the search by introducing a complementary natural language processing (NLP) search. At the heart of our proposed NLP search, we trained a joint embedding using scientific text corpus and a curated set of dataset metadata. The embedding learns the association between words in our dataset metadata and those of the scientific text corpus. This enables us to go beyond simple hard-matching of a query and data set metadata and have a notion of “similarity” between the search query and the datasets. We further integrated our NLP search into the Elastic Search (ES) framework leveraging similarity search capabilities offered through the “dense_vector” field type. Our preliminary evaluations show that our proposed NLP search has the potential to be utilized to complement the existing search engine and serve as a base for a dataset recommendation system.
Document ID
20210018883
Acquisition Source
Goddard Space Flight Center
Document Type
Poster
Authors
Armin Mehrabian
(ADNET SYSTEMS INC Bethesda, Maryland, United States)
Irina Gerasimov
(Adnet Systems (United States) Bethesda, Maryland, United States)
Mohammad Khayat
(Adnet Systems (United States) Bethesda, Maryland, United States)
Jennifer Wei
(Goddard Space Flight Center Greenbelt, Maryland, United States)
Binita KC
(Adnet Systems (United States) Bethesda, Maryland, United States)
Hegde Mahabaleshwara
(Adnet Systems (United States) Bethesda, Maryland, United States)
Date Acquired
July 20, 2021
Subject Category
Computer Programming And Software
Meeting Information
Meeting: ESIP Summer 2021 Meeting
Location: Online
Country: US
Start Date: July 19, 2021
End Date: July 23, 2021
Sponsors: Goddard Space Flight Center
Funding Number(s)
CONTRACT_GRANT: 4001.00.628
Distribution Limits
Public
Copyright
Public Use Permitted.
Technical Review
Single Expert
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