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Using the library services Internet: evaluation of sources Use - - PowerPoint PPT Presentation

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Using the library services Internet: evaluation of sources Use search engines effectively Some basic search techniques Choosing the appropriate source Computer science sources Bibliographies and reference works Data bases

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Using the library services

Internet: evaluation of sources Use search engines effectively Some basic search techniques Choosing the appropriate source Computer science sources

Bibliographies and reference works Data bases Fulltext archives

Sources of other disciplines Two cases

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September 2005 Library introduction

Evaluation of net sources - 1

Is it real? Is it unaffected and independent? Time dependency Is it free from tendency? Examples

Google: cambodia pol pot killings Google: evolution theory darwinism Google: traveling salesman problem

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September 2005 Library introduction

Evaluation of net sources - 2

Who is talking?

A well known organization Public authorities A private person Somebody selling something?

Updating and maintenance

Is the page dated? New or old? Does the page contain dead links?

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September 2005 Library introduction

Evaluation of sources - 3

Look at the URL:

.com = commercial/business(.co.uk) .gov = US authorities .org = organizations .edu = US education institutions (.ac.uk) .dep.no = Norwegian ministries .uio.no, .ntnu.no, .uib.no, .uit.no (Norwegian

universities)

Is the page sponsored?

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September 2005 Library introduction

Use search engines effectively

Google

  • nly up to ten words, the first word is

considered the most important

use phrases, not single words limit your search through the advanced

search option

click the ”similar pages”-link exclude words or phrases, using ”-”

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September 2005 Library introduction

Choosing the appropriate source

What is your problem?

a special Java fix a sorting algorithm articles/books covering a subject

What kind of answer do you want?

short precise definition short introduction serious high level treatment of a subject

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September 2005 Library introduction

Special reference works

Oxford Reference Online – Computing MATHnetBASE The Concise Oxford Dictionary of Mathematics A Dictionary of Statistics (Oxford Reference Library)

Via http:/ / x-port.uio.no

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September 2005 Library introduction

Bibliographies

The Collection of Computer Science Bibliographies

2 000 000 references in computer science.

The HCI Bibliography

29 000 references in the field "human-computer-

interaction".

The Hypertext Bibliography Project

Included in the CCSB. 50 300 references up to 1999.

Research Index.

"The NECI Scientific Literature Digital Library". 700 000

references with citings.

SIGGRAPH Bibliography Database Search

15 500 unique references in the field of computer graphics

and interactive techniques.

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September 2005 Library introduction

Reference- and citation databases

Inspec

Physics, digital technique,

telecommunication, control theory, information technology

ISI Web of science (Science citation

index)

Covers important journals in mathematics,

computer science, and natural sciences

Citation database

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September 2005 Library introduction

Basic search techniques

Using fields (author, subject, title, ...) Boolean (logical) operators Using controlled vocabularies / thesauri

/ classification systems

Word stemming (truncation/wildcard) Phrases vs single words Index browsing

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September 2005 Library introduction

Inspec

7 000 000 references from 1965 – 400 000 added annually Search techniques

field searching Thesaurus (controlled vocabulary) Truncation (* , ?) Operators (adj, and, or, not, near, with)

Via http:/ / x-port.uio.no

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September 2005 Library introduction

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September 2005 Library introduction

Language and time period limits

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September 2005 Library introduction

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September 2005 Library introduction

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September 2005 Library introduction

Tesaurus-søk : ”e-learning”

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September 2005 Library introduction

Tesaurus-søk: ”learning”

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September 2005 Library introduction

”computer-aided-instruction” ”Search Marked”

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September 2005 Library introduction

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September 2005 Library introduction

Combine and search using AND

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September 2005 Library introduction

Kombinasjonen

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September 2005 Library introduction

Noe med multimedia i tillegg

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September 2005 Library introduction

Kombinerer på ny

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September 2005 Library introduction

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September 2005 Library introduction

ISI Web of Knowledge

Science citation index

5900 journals in mathematics and science are analyzed

Includes also:

Social Sciences Citation Index Arts & Humanities Citation Index

Search techniques

Operators (and, or, not, same) Truncation (* , ?, $) Author search (Last name and initials) Limits (language and document type)

Via http:/ / x-port.uio.no

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September 2005 Library introduction

Gå til søking

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September 2005 Library introduction

Valg av søkeskjema og søkegrunnlag

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September 2005 Library introduction

Artikler av Donald E. Knuth

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September 2005 Library introduction

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September 2005 Library introduction

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September 2005 Library introduction

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September 2005 Library introduction

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September 2005 Library introduction

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September 2005 Library introduction

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September 2005 Library introduction

Fulltext archives

ACM Digital Library IEEE Xplore Lecture notes in computer science Master thesis, doctoral thesis Electronic journals (UiO subscribes to

  • ver 7000)
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September 2005 Library introduction

ACM Digital Library

87 journals (1954-) 192 conferences (1952-) Search technique

implicit OR ranked hit lists Phrases ”...” Case sensitive Operators (+ , -) Truncation (* )

Via http:/ / x-port.uio.no

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September 2005 Library introduction

IEEE Xplore

Close to 1 million documents (articles,

conference papers, IEEE standards) from 1988 - (selected items back to 1950)

Search technique

Fields (au, ti, ab, de, ...) automatic truncation (avoid using ”) limit on document type wild card:? (one char), * (nil or more chars) Operators (paragraph, sentence, phrase, near,

and, or, not)

Via http:/ / x-port.uio.no

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September 2005 Library introduction

Lecture Notes in Computer Science

A book series (more than 3400 volumes)

Lecture Notes in Artificial Intelligence Lecture Notes in Bioinformatics

Paper version in the library (vol. 1-3350) Search technique

Operators (and or not near) Truncation (* ) Phrases ”...” word forms (sink* * = sink* sank sunk)

Via http:/ / x-port.uio.no

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September 2005 Library introduction

Thesis

Thesis in informatics Thesis and doctoral thesis for UiO as a

whole (DUO)

Via http:/ / www.ub.uio.no/ umn/ inf/

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September 2005 Library introduction

Electronic journals

The university library subscribes to over

7000 electronic journals

You find them via the library portal

http://x-port.uio.no

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September 2005 Library introduction

Data bases in other disciplines

Psychology (PsycInfo) Medicine (PubMed) Sociology (Sociology abstracts) Education science (ERIC)

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September 2005 Library introduction

Library catalogues

Union catalogue of the universities and

colleges in Norway (BIBSYS)

http://www.ub.uio.no/umn/inf/

Catalogues of the National Library

http://www.nb.no/baser/

Public libraries

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September 2005 Library introduction

Two scenarios

We want literature about:

1.

Cultural considerations/implications of doing systems development in developing countries.

2.

Psychological implications of e- learning.

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September 2005 Library introduction

Case 1: cultural implications of doing systems development in developing countries

The vocabulary

global programming teams, systems development,

developing countries, globalization, outsourcing, ...

The sources:

ACM digital library INSPEC Web of knowledge Sociological abstracts

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September 2005 Library introduction

Case 2:Psychological implications of e-learning

The vocabulary

e-learning, psycholog* , computer uses in education,

distance education, computer aided instruction (CAI), human computer interaction, user interfaces, ...

The sources:

Inspec ERIC PsycInfo Web of knowledge Collection of computer science bibliographies HCI bibliography

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September 2005 Library introduction

You want some, or all, articles

  • n a specific topic:

Most important informatics source: INSPEC

Decide what’s the correct terminology Combine and limit your search to get a clear,

readable hit list

Read the abstracts to check relevance To get the text:

Electronic version? IEEE Xplore, ACM Portal, Lecture

Notes in Computer Science, or in an electronic journal?

Paper version? Check holdings in x-port, order a copy.

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September 2005 Library introduction

Cross-disciplinary topic?

Check other databases! E.g:

Bioinformatics (Biological abstracts) Mathematical modelling (MathSci) User interface (PsycINFO) Medical informatics (PubMed) Education (ERIC) Sociology (Sociological abstracts) ...

Same search techniques, different terminology,

different user interface, different search syntax,...

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September 2005 Library introduction

Summing up

Evaluate and be critical to the information

you find on the Internet

Define your problem; information need Use the search techniques to hit the bull’s eye Be aware of the different sources available

and use them

Handbooks Reference databases Fulltext archives and electronic journals

The library staff is always there to help you