1 Introduction
2 Authority and web discussion
2.1 Web discussion group
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Discussion connected to a web article In this case, the discussion is only an additional function to the content of the article to enable feedback. The subject of such discussion can be the text of the article or the concerning theme or product.
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Guestbook A place on a web site dedicated to reactions on the given web project, for example, a personal web page or a web page relevant to some theme.
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Discussion forum A part of a more extensive discussion project. It enables to establish new discussion pages and to sectionalize them into groups according to themes. It is a place, where users can leave the contributions. These contributions (e.g., news) are often longer than one line as they are within chatrooms. They are temporarily archived. An approval of new contributions by moderator of the discussion can be desired before the contributions became visible for all users.
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Questions and answers Some public institutions offer the public answering of question, suggestions or complaints on special web pages. In this case, a pronouncement of a responsible representative of the institution is expected.
2.2 Authority identification in general
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Formal (functional) authority It represents a measure of influence of some person following from his formal position regardless of personal properties. It is leadership of the person, who is mandated to make decisions. It is obviously the result of a position, title or function of some person within an organization (an arbiter, teacher, politician, and so on). A leader could require submission, although this person is not honest or brave or predictable or able of a quick decision-making.
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Informal (natural) authority It is based on human and personal properties and professional assumptions of a person. It is the result of a personal profile, capability, adequate self-confidence, and social activities. Such person has natural, spontaneous influence on others, because of his/her persuasiveness and good experiences with his/her advices and decisions. The people, who let an authority to lead them, enforce the weight of this authority.
2.3 Authority of a web discussion
3 Used methods
3.1 Linear and non-linear regression
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\(y = b_{0} + b_{1}x\) (basic linear regression)
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\(y = b_{0} + b_{1}x + b_{2}x^{2}\) (quadratic regression)
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\(y = b_{0} + b_{1}x + {\cdots } + b_{r}x^{r}\) (polynomial regression)
3.2 Ordinary least squares method
3.3 Specification of the variables of a discussion structure
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AE Average evaluation of the contribution.
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K Value of the karma of the user, which is the contribution author.
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NCH Number of characters within his/her contributions.
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AL Average layer in the conversation tree (see Fig. 4).
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ANR Average number of reactions on his/her contributions.
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NC Number of contributions of given discussant.
Version | Average deviation |
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L-EXPERT | 17.3489 |
L-CROWD | 3.2998 |
PL-EXPERT | 24.0123 |
PL-CROWD | 8.7912 |
NL-EXPERT | 18.1131 |
NL-CROWD | 6.5618 |
Precision | Recall | ||||
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Test | Version | Expert | Crowd | Expert | Crowd |
Cross val. 12_3 | Linear regression | 0.78 | 0.99 | 0.69 | 0.99 |
Polynomial regression | 0.77 | 0.84 | 0.65 | 0.97 | |
Non-linear regression | 0.72 | 0.99 | 0.66 | 0.88 | |
Cross val. 13_2 | Linear regression | 0.65 | 0.98 | 0.65 | 0.93 |
Polynomial regression | 0.63 | 0.77 | 0.60 | 0.91 | |
Non-linear regression | 0.67 | 0.97 | 0.67 | 0.86 | |
Cross val. 23_1 | Linear regression | 0.68 | 0.97 | 0.67 | 0.67 |
Polynomial regression | 0.62 | 0.72 | 0.58 | 0.95 | |
Non-linear regression | 0.69 | 0.97 | 0.69 | 0.67 | |
Average | Linear regression | 0.70 | 0.98 | 0.67 | 0.80 |
Polynomial regression | 0.67 | 0.78 | 0.61 | 0.94 | |
Non-linear regression | 0.67 | 0.97 | 0.67 | 0.80 |