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Teaching and Learning Resources on the Internet. 謝寶煖 台灣大學圖書資訊學系副教授 2004 年 11 月 6 日 [email protected] Outline. Course content online MIT OCW The World Lecture Hall GEM Yale and the World Research online Collaboratories Shariums Online Communities Archives Open Access Journals

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teaching and learning resources on the internet

Teaching and Learning Resources on the Internet

謝寶煖

台灣大學圖書資訊學系副教授

2004年11月6日

[email protected]

outline
Outline
  • Course content online
    • MIT OCW
    • The World Lecture Hall
    • GEM
    • Yale and the World
  • Research online
    • Collaboratories
    • Shariums
    • Online Communities
    • Archives
    • Open Access Journals
  • Web search tools
    • Directory
    • Search engines
    • Meta search engines
course content online
Course content online
  • Course title
  • Syllabus
  • Readings,
  • lecture notes, handouts,
  • assignments, review questions
  • pictures, animations, audio clips, video presentation
course content online1
Course content online
  • MIT OCW
  • The World Lecture Hall
  • Yale and the World
  • Gateway to Educational Materials, GEM
mit opencourseware mit ocw

MIT OpenCourseWare MIT OCW

http://ocw.mit.edu/index.html

http://www.twocw.net

mit ocw
MIT OCW
  • Goals
    • Provide free, searchable, access to MIT\'s course materials for educators, students, and self-learners around the world.
    • Extend the reach and impact of MIT OCW and the "opencourseware" concept.
  • publish the materials from virtually all of MIT\'s undergraduate and graduate courses. (2008)
  • With 900 courses published as of September 2004
the world lecture hall

The World Lecture Hall

http://web.austin.utexas.edu/wlh/

world lecture hall
World Lecture Hall
  • publishes links to pages created by faculty worldwide who are using the Web to deliver course materials in any language.
  • Some courses are delivered entirely over the Internet. Others are designed for students in residence. Many fall somewhere in between.
  • has 83 categories to browse.
  • university-level courses
yale international homepage

Yale International Homepage

http://www.world.yale.edu

slide30
GEM
  • The Gateway to Educational Materials
  • Sponsored by ed.gov (美國教育部)
  • A Consortium effort to provide educators with quick and easy access to thousands of educational resources found on various federal, state, university, non-profit, and commercial Internet sites.
research online
Research online
  • Collaboratories
  • Shariums
  • Online Communities
  • Open Access Journals
  • Archives
slide39
新型態的社會連結
  • Collaboratories
    • 1989 William Wulf
    • Science of collaboratories, SOC
    • Univ. of Michigan, Howard Univ.
    • Sponsored by National Science Council
    • http://www.scienceofcollaboratories.org/Resources/colisting.php
  • Shariums
    • BioScience http://www.pmabs.org/sharium/
    • The American Front Porch (AFP) http://www.ils.unc.edu/afporch/main.html
  • Online Communities
    • Ask An Expert
    • Knowledgebases http://students.washington.edu/lmon/knowledgebases.html
online communities
Online Communities
  • Knowledgebases
    • http://students.washington.edu/lmon/knowledgebases.html
  • Ask An Expert
ask an expert services
Ask an Expert services
  • AskERIC
  • Ask Joan of Art! (National Museum of American)
  • NASA\'s Ask the Space Scientist
open access journals

Open Access Journals

Directory of Open Access Journals

http://www.doaj.org/

Journal that use a funding model that does not charge readers or their institutions for access. From the BOAI definition [1] of "open access" we take the right of "users to read, download, copy, distribute, print, search, or link to the full texts of these articles" as mandatory for a journal to be included in the directory.

journal selection criteria
Journal Selection Criteria
  • Information coverage 1.1 Subject: all scientific and scholarly subjects are covered1.2 Types of resource: research or review papers in full text.1.3 Acceptable sources: academic, government, commercial, non-profit private sources are all acceptable.1.4 Level: the target group should be primarily researchers.1.5 Content: a substantive part of the journal should consist of research papers. All content should be available in full text.
  • Access 2.1 Cost: No charges to users or their institutions.2.2 Registration: Free user registration online is acceptable.2.3 Journals that has an embargo period will not be added.
  • Metadata 3.1 Granularity: Being catalogued on journal title level.
  • Quality 4.1 Quality control: Peer-review or editorial quality control
web search tools

Web Search Tools

Directory

Search engines

Meta search engines

slide58

網站數量

  • Netcraft Web Server Survey
    • has topped55 million sites for October 2004, receiving responses from 55,388,466 sites.(5千5百萬個網站)
    • roughly 1 million sites a month

Source: Netcraft Web Server Surveyhttp://news.netcraft.com/archives/web_server_survey.html

slide60
網頁數量

42億8千5百萬

  • 搜尋引擎Google可以搜尋 網頁(含PDF檔)
slide61
網路資源搜尋工具
  • 分類目錄(subject directories)
    • 網站
    • Yahoo, Yam
  • 搜尋引擎(search engines)
    • 網頁
    • Google, Alltheweb, altavista
    • Openfind, sina (找期刊論文)
  • 整合式搜尋引擎(meta search engines)
    • 網頁
    • Mama, DogPile, Search.com
  • 入口網站(Portal)
  • 網站指南(Web Guide)
slide67
分類目錄

Internet People > Meg Whitman

Directory > Computers and Internet > Internet > People > Whitman, Meg

google www google com www google com tw
Googlewww.google.comwww.google.com.tw
  • 國際多語,透過語言選擇項目
    • 用戶可以指定自己喜好的語言版本
    • 可設定查詢範圍只在特定的語言內
google
Google
  • I’m Feeling Lucky(好手氣)
  • Web Search
    • Preference ( 偏好設定)
    • Advanced Search
      • Language
      • Date
      • Format(可查pdf檔)
      • Domain
  • 分類目錄(web directory):知識彙整
  • 專業搜尋(topic-specific search):大學、政府
  • 查詢結果
    • 頁庫存檔(Cached)
    • 群組結果(Clustering)
    • 查找類似網頁(Similar pages)
    • 翻譯
  • Google Toolbar + Desktop search
    • About Google > Google Services & Tools
  • Make Google Your Homepage! (設定成首頁)
web search preference advanced search language date format pdf domain tips
Web Search

Preference ( 偏好設定)

Advanced Search

Language

Date

Format(可查pdf檔)

Domain

Tips

slide83
搜尋秘笈 稱霸網林
  • 第一招
    • 明確字詞 精確結果
      • 輸入查詢的字詞愈明確,則查到的資料愈精確
        • 電影
        • 電影關鍵報告
        • 總統就職 國宴 四季宴

( 代表空一格,中文以空格區辨詞組)

slide84
搜尋秘笈 稱霸網林
  • 第二招
    • 有加有減 結果更相關
      • + 輸入的關鍵字一定要出現在檢索結果中
        • 臥虎藏龍
        • 臥虎藏龍電視劇
        • 臥虎藏龍+電視劇+電影
        • 臥虎藏龍+電視劇+電影-音樂
        • +clinton +lewinsky
      • - 輸入的關鍵字一定不要出現在檢索結果中
        • 臥虎藏龍-音樂
        • +clinton –lewinsky
        • 知識管理 -site:.com
slide85
搜尋秘笈 稱霸網林
  • 第三招
    • 限定查詢範圍 結果更精確
      • 語文
      • 網域:.edu .tw .gov.tw .com .idv.tw
      • 日期
      • 資料類型 .ppt .pdf .doc
      • 分類
      • 地域
slide86
搜尋秘笈 稱霸網林
  • 第四招 布林查詢
    • 可將查詢範圍明確地擴大或縮小,使查詢結果更為準確
      • AND 、OR 、NOT
      • + -
        • dogs AND cats
        • 貓 AND 音樂劇
        • dogs OR cats
        • 皮卡丘 OR 趴趴熊
        • dogs NOT cats
slide87
搜尋秘笈 稱霸網林
  • 第五招 關鍵字的選擇
    • 平均輸入1.5個關鍵字三個不算多
    • 5W1H
      • What
      • Who
      • Where
      • When
      • why
      • How
slide88
搜尋秘笈 稱霸網林
  • 第六招 自然語言查詢
    • 利用智慧代理分析輸入的問句,粹取關鍵字並判斷關鍵字間的布林關係,送到搜尋引擎資料庫進行查詢比對,再回饋查詢結果。
      • 例:how doctor define SARS
      • Where is a good place to stay in Boston?
    • Stop words(頻繁字),如a, an, at, in …
      • To be or not to be
      • “To be or not to be”
slide89
搜尋秘笈 稱霸網林
  • 第七招 片語查詢(Phrase Searching)
    • 加上引號“ ”
      • “knowledge management”
      • 自動片語查詢: Google, Alta Vista, Excite
slide90
搜尋秘笈 稱霸網林
  • 第八招 指定欄位(Field Searching)
    • title:knowledge management
    • title:“knowledge management”
    • title:”knowledge management” –site:.com
slide91
常用查詢技巧
  • 多組關鍵字
  • 用+ 表示 and,要
  • 用- 表示not,不要
  • 嘗試不同的工具以得到最佳的結果
cached similar pages search within this result
查詢結果

頁庫備份 Cached

類似網頁 Similar Pages

結果再查詢 search within this result

slide103

CNN - Behind the scenes at eBay - January 13, 2000 Category: News > Online Archives > CNN.com > 

2000 > January > Tech [CNN]

slide107

1.選定學校

2.輸入課程名稱關鍵詞+

Lecture notes

Syllabus

Assignment

project

slide114

整合式搜尋引擎的類型

  • 選擇性搜尋
    • 限制每個搜尋引擎的查詢時間或筆數
    • 適合做探索性搜尋,選擇適用的搜尋引擎
    • MetaCrawler,Mamma, Ixquick Metasearch
  • 完整搜尋
    • Dogpile, Profusion, Copernic
  • 分類目錄
    • 將專業搜尋引擎分門別類
    • Search.com
mamma s ranking algorithm
Mamma’s Ranking Algorithm
  • rSort
    • Works like a voting system for search results.
    • The search engines Mamma.com queries often return duplicate results. Instead of simply eliminating the duplicates as many metasearch engines may do, we use this information to rank our results.
    • Each duplicate search result is considered a \'vote\' for that result.
    • Pages with the highest number of votes go at the top of our result set (for the mathematicians in the audience, the method of voting we use is a simplified version of the "Condorcet Method", named after the mathematician Marquis de Condorcet who invented this voting procedure in the 18th century).
    • One of the big advantages of this ranking method is the elimination of search engine spam.
slide121

俄亥俄州克利夫蘭將近一周來一直下雨,3 日好不容易轉晴,溫煦的陽光使動物園裡的北極熊懶洋洋地打起盹來。(美聯社)

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