Academic search engines
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Academic Search Engines. Online SEARCHING For professional or academic purposes – part ii. Summary. Academic Search Engine Characterization Inputs: Information sources Kind of documents Output: Types of retrieved documents (access) Main academic search Engines Google Scholar Scirus

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Academic search engines

Academic Search Engines

Online SEARCHING For professional or academic purposes – part ii

L. Codina. UPF Interdisciplinary CSIM Master


Summary

Summary

  • Academic Search Engine Characterization

    • Inputs:

      • Information sources

      • Kind of documents

    • Output:

      • Types of retrieved documents (access)

  • Main academic search Engines

    • Google Scholar

    • Scirus

    • Live Academic

L. Codina. UPF Interdisciplinary CSIM Master


Inputs information sources

Inputs: Information sources

  • Typology of institutions or corporations web sites indexed by the A-SE

    • Universities (.edu sites)

    • Research centres (NASA, RAND, etc.)

    • Government (sites related with science, technology, etc.)

    • Journal and book publishers

    • Library collections

    • Digital repositories (e-prints, e-books, etc.)

L. Codina. UPF Interdisciplinary CSIM Master


Inputs typology of documents

Inputs: Typology of documents

  • Web pages (and any kind of documents: pdf, word, etc.) published in web sites

  • Articles of peer review journals (both open access and subscription-based access)

  • Academic works, like dissertations, thesis, etc.

  • Patents

  • Books

  • References (not the full text document, only the bibliographic reference)

L. Codina. UPF Interdisciplinary CSIM Master


Output types of retrieved documents

Output: Types of Retrieved Documents

  • The retrieved documents in the search engine results page may be:

    • Free (web pages, open access peer review journal articles, etc.)

    • Free if you are in the campus or connected to the campus network (articles of the peer review journal that are subscribed by your University)

    • Not free: by payment because the journal is not subscribed by your university (articles of the peer review subscription-based journal)

    • References only (not the document: you have to find out the full text document by other ways)

L. Codina. UPF Interdisciplinary CSIM Master


The main academic search engines

The main Academic-Search Engines

  • Google Scholar (Google)

    scholar.google.com

  • Scirus (Elsevier)www.scirus.com

  • Academic Live (Microsoft)academic.live.com

L. Codina. UPF Interdisciplinary CSIM Master


Google scholar i

Google Scholar - I

  • Google Scholar

    • Inputs:

      • All sources and types, except patents

    • Special features:

      • Citation analysis, ranking and navigation options

L. Codina. UPF Interdisciplinary CSIM Master


Google scholar ii

Google Scholar - II

L. Codina. UPF Interdisciplinary CSIM Master


Scirus i

Scirus - I

  • Scirus

    • Inputs:

      • All sources and types, except books and references

    • Special features:

      • The search facilities, the characteristics of the results page, the diversity of sources, the access to full text patents and the total amount of available information

L. Codina. UPF Interdisciplinary CSIM Master


Scirus ii

Scirus II

L. Codina. UPF Interdisciplinary CSIM Master


Live academic i

Live Academic - I

  • Live Academic

    • Inputs:

      • All sources, except patents

    • Special features:

      • Visualization, sort and exportation options in the results page

L. Codina. UPF Interdisciplinary CSIM Master


Live academic ii

Live Academic - II

L. Codina. UPF Interdisciplinary CSIM Master


Ranking by amount of information

Ranking by amount of information

  • Scirus

  • Google Scholar

  • Live

    A simple test. Keyword: hypertext

    Number of results in:

  • Scirus:615,695 documents

  • Google Scholar:252,000 documents

  • Live:12,153 documents

L. Codina. UPF Interdisciplinary CSIM Master


Conclusions i

Conclusions - I

  • Databases vs. search engines: What is the different role of each system?

    • Academic databases (subscription-based):

      • Indispensable if you need to legitimate your work (for example, for a dissertation or to submit a paper to a peer review journal)

      • If you want to be sure about the state of art in your field

      • The most trustworthy information

    • Academic Search Engines (free-access):

      • The most up to date information

      • Quickly and easy access to information

      • Useful information: more practical, more understandable, more direct and academic-jargon free, etc. (but at your risk)

      • In addition, they contain, partially, the same documents that academic databases (but it is not sure and it is at a very different proportion, depending the field).

L. Codina. UPF Interdisciplinary CSIM Master


Conclusions ii

Conclusions - II

  • Academic database will be essential for you for the reasons mentioned in previous slide… but the crude truth is that Academic Search Engines will make your life more easier.

  • In other words: probably, you will want to use search engine because its easiness, and probably you willnotwant to use databases because its (relative) difficulty, but you have to use it.

  • So… fortunately or unfortunately you will need both

L. Codina. UPF Interdisciplinary CSIM Master


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