Human-Computer Interaction: Communication, Cooperation, and Application Design

By Hans-Jörg Bullinger; Jürgen Ziegler | Go to book overview

in projects associated with the employee. Whereas with self-published documents there is an explicit linkage between the documents and employee (they are indexed by employee number on the MII), with documents that mention employees, this linkage must be derived from the underlying text. In particular, an information extraction tool1 tags proper names in text and then statistically measures how strongly these names are associated with specific topics. Because each source of information alone is not sufficient to determine if an employee is an "expert" in a particular topic, ExpertFinder relies on the combination of evidence from many sources.

Figure 1. ExpertFinder "chemical" example

Evaluation

The original goal of ExpertFinder was to place a user within one phone call of an expert. That is, even if the persons listed as the result of an ExpertFinder query weren't the experts, they would be able to provide the name of someone who was. Happily, actual "experts" are typically listed as the top three or four candidates. The likelihood of randomly selecting a correct expert is the total number of experts divided by total corporate staff (4500) so there is often significantly less than a one-percent chance of finding any experts.

Table 1 contrasts the performance of ten technical human resource managers, professionals at finding experts, with ExpertFinder for the task of identifying the top five corporate experts in speciality areas listed in the table. The first column in Table 1 shows the degree of inter-subject variability in reporting experts (measuring percentage of agreement of first, second, and third of five experts). Columns 2 and 3 show results for precision, the degree to which a staff found by ExpertFinder is considered expert by humans, and recall, the degree to which apriori human-designated experts are found by ExpertFinder.

____________________
1
NameTag from IsoQuest Corporation.

-304-

Notes for this page

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
One moment ...
Default project is now your active project.
Project items
Notes
Cite this page

Cited page

Style
Citations are available only to our active members.
Buy instant access to cite pages or passages in MLA 8, MLA 7, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

(Einhorn 25)

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Note: primary sources have slightly different requirements for citation. Please see these guidelines for more information.

Cited page

Bookmark this page
Human-Computer Interaction: Communication, Cooperation, and Application Design
Table of contents

Table of contents

Settings

Settings

Typeface
Text size Smaller Larger Reset View mode
Search within

Search within this book

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

Help
Full screen
Items saved from this book
  • Bookmarks
  • Highlights & Notes
  • Citations
/ 1364

matching results for page

    Questia reader help

    How to highlight and cite specific passages

    1. Click or tap the first word you want to select.
    2. Click or tap the last word you want to select, and you’ll see everything in between get selected.
    3. You’ll then get a menu of options like creating a highlight or a citation from that passage of text.

    OK, got it!

    Cited passage

    Style
    Citations are available only to our active members.
    Buy instant access to cite pages or passages in MLA 8, MLA 7, APA and Chicago citation styles.

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

    1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

    Cited passage

    Thanks for trying Questia!

    Please continue trying out our research tools, but please note, full functionality is available only to our active members.

    Your work will be lost once you leave this Web page.

    Buy instant access to save your work.

    Already a member? Log in now.

    Search by... Author
    Show... All Results Primary Sources Peer-reviewed

    Oops!

    An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.