EBSCO Discovery Service Presented By: Shaji John Discovery - PowerPoint PPT Presentation

EBSCO Discovery Service Presented By: Shaji John Discovery Innovations and FOLIO Africa, Southeast Asia, South Asia & South Korea | www.ebsco.com 1

AGENDA • What is Discovery Service • Features & Functionalities • Client Lists • Customized Interfaces • Demonstration • Questions | www.ebsco.com 2

Discovery Service American Libraries May 1, 2015 Adoption Worldwide [Marshall Breeding] EBSCO Discovery Service (EDS) 8,246 installations Primo Central 1,529 installations Summon 697 installations | www.ebsco.com 3

Search Engines | www.ebsco.com 4

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Empower Users | www.ebsco.com 7

Open Relevance Ranking | www.ebsco.com 8

Openness About Relevance Algorithm • EDS relevance details are open for all customers, potential customers and content providers • Truly sophisticated relevance algorithms are not easy to duplicate | www.ebsco.com 9

Relevance Ranking | www.ebsco.com 10

The first two results provide detailed information about how relevance ranking / value ranking works in EDS… | www.ebsco.com 11

Relevance Ranking: Quality & Openness The system has the following priorities and has no bias toward content from any provider: 1. Match on subject headings from controlled vocabularies 2. Match on article titles 3. Match on author keywords 4. Match on keywords within abstracts 5. Match on keywords within full text Exact Matches: Exact matches are favored over partial matches – Density: Matches across multiple metadata fields are favored for considering also the field in which those words appear (abstract vs. relevance scoring (more is better). The scoring influence of repeat terms full text vs. title, etc.) within individual metadata fields is minimized. | www.ebsco.com 12

Relevance Ranking – Layered Calculations • Term freq / density, scaled fields calc − Eg. Weights: Subjects : 15, Title: 10, Keyword: 5, Abstract: 2, Full Text: 1 • Tie-breakers / customizers − Date recency, article length, publication types (e.g. a peer-reviewed article > book review), etc • Exact match boost − Score boosted an exact match in a specific field (e.g. Title, of a book) • Customer influence, preference − Catalog and Institutional Repositories (IRs) − Raise or lower relevancy of your specific content | www.ebsco.com 13

Value Ranking: Quality & Openness After conducting an unprecedented number of usability studies with undergraduate students, graduate students, and faculty, the following additional emphases were put in place to improve the value of the results for the end user: | www.ebsco.com 14

Value Ranking: Quality & Openness RECENCY Recently published content is scored higher for relevance than older content | www.ebsco.com 15

Value Ranking: Quality & Openness DOCUMENT TYPE Certain document types are weighted higher than others for relevance scoring For example, when the word “ book ” or “ review ” is not searched, there is a “ bias ” against book reviews, so these don ’ t dominate results | www.ebsco.com 16

Value Ranking: Quality & Openness LENGTH Articles of a more substantial length have a heavier weighting (e.g., a ¼ page article is considered less valuable than a 4 page article) | www.ebsco.com 17

Problem: Missed Connections Subject Indexing in EDS TOPICAL QUERY Attention-deficit hyperactivity disorder adhd Attention deficit disorder with hyperactivity Ectohormones Allelochemicals pheromones Semiochemicals Allomones Positron Emission Tomography PET scan Tomography, Emission-Computed Emission Tomography Compulsive gambling gambling addiction Pathological Gambling User queries and subject indexing not always aligned. Different vocabularies often use different terminology for the same concept. | www.ebsco.com 18

JNU Full Text Downloads has increased after implementation of Discovery 180000 160000 167880 Full Text 140000 120000 159435 Full 100000 Text Projected JNU Usage 80000 110955 Full Text 60000 40000 54164 Full Text 20000 4696 Full Text 0 Updated 8 th January 2017 2012 2013 2014 2015 2016 | www.ebsco.com 19

Key criteria for Discovery decision making Interoperability Relevance Configurability Content Focus on Discovery tools and services | www.ebsco.com 21

Backend Systems Front-end Discovery - EDS Evaluation Criteria Happy Library Happy End Users Administrators Happy Subject and Reference Librarians “ Next-Gen ” ALMA, WMS, VuFind EDS UI Intota, Kuali OLE, Sierra, Blue Cloud “LMS” Aleph, Symphony, Most Relevant Millennium Blacklight Results Above the Fold ERM Ex Libris SFX, PQ SS360, EBSCO FTF Koha UI EDS Learning Management System (Moodle, etc.) LMS Custom Partner UI App Best User Experience Best user experience, most choice. | www.ebsco.com 22

Thai EDS clients | www.ebsco.com 23

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EDS Interface Customizations | www.ebsco.com 25

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Result Page for ILI | www.ebsco.com 27

View Demo MIT LIBRARY THEN | www.ebsco.com 28

MIT LIBRARY NOW | www.ebsco.com 29

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IIM Bangalore | www.ebsco.com 33

IIM Calcutta | www.ebsco.com 34

With Library Site Embedded Search Box | www.ebsco.com 35

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Demonstration | www.ebsco.com 37

No Obligation Free Trial | www.ebsco.com 38

Thank You Find out more information at: http://www.ebscohost.com Shaji John sjohn@ebsco.com +91 11 2619 8966 - 67 | www.ebsco.com 39