236:
The contributors can have intrinsic or extrinsic motivation to contribute. Further, the motivations to share knowledge can be categorized into individual-based and organization or website based motivations. Website based motivations (extrinsic) include rewards and incentives to the contributions like for example upvotes or coupons. Individual-based motivations (intrinsic) would constitute factors like a belief in knowledge ownership, individual characteristics, interpersonal trust, and will for justice. Specifically, two kinds of motivations drive people to participate in online Q&A: Why do people ask questions, and why do others answer these questions?
206:. A graph connecting topics to users, a social graph connecting users, and a graph connecting related questions. These connections help users find the topic that they are looking for and build a social connection with people sharing the same interests. Also, as contributors gather according to a common theme, their votes help to screen out the domain expert and the high quality questions in that field. The heterogeneity in the user and question graphs are significant contributors to the quality of the community's knowledge base.
92:, was launched, allowing users to ask questions and with the help of other people, have them answered. The slogan of the service, "The Ask Jeeves Answer Point is the place where you can ask and answer questions. Have a question? Post it! Know the answer? Post it!", indicated the main function of it, which inspired the creation of later Q&A sites. The last archived version of the Ask Point was from late 2001 when it still allowed registration.
154:: Also known as virtual reference, it is an extended version of traditional reference service where users in the library can get help from librarians with identifying desired materials. The advantage comes from the fact that users can have access anytime without physical constraints. The current services in this type include Ask an IPL Librarian of the Internet Public Library, and the Educators' Reference Desk
162:
of people often surpasses answers from experts in a traditional Q&A service. For example, Harper, Raban, Rafaeli, and
Konstan (2008) showed that a social Q&A system ended up with a better quality of answers than those of library reference services by comparing existing services. Established examples of community Q&A sites are
318:
The user asks their question which can be answered by any member of that online community. The answers then go through an assessment, wherein the good answers are upvoted and the bad answers are downvoted by the users (or a similar parallel on different platforms). The members of the online community
201:
Originally, Q&A communities had little structural or role-based organization. In recent years, some communities started to form social and information structures. This is driven by the increasing number of contributors and the adoption of new features as mentioned above. Research shows that there
142:
An online Q&A service serves the public with its ease of getting access without temporal and spatial constraints. The mechanisms are standardized: Questioners express their information needs in the form of a question, and people (experts, or other users in the system) answer those questions based
314:
to obtain answers to posted questions. Crowdsourcing is the act of outsourcing work to an undefined, networked labor using an open call for participation, and it is used to support the activities on most Q&A software (such as Stack
Exchange, Quora, etc.). This technique allows the user to obtain
266:
The next step regarding the cycle of question and answering behaviors is for askers to assess answers to see if answers meet their expectations from information needs. In the same survey examined by Choi (2014), the most desired factor was “Additional or alternative information (4.03 / 5)”, followed
227:
such as approval, status, and respect play a very important role in motivating people to contribute to the Q&A software. User's eagerness of showing their knowledge and expertise and the potential chance of being noticed by recruiters also play a role in motivating people to answer questions and
179:
Community Q&A sites involved everyday users in answering questions – it largely increased the number of contributors. One of the problems of these communities is that it is hard to control the quality of answers compared with "ask an expert service". In recent years, community Q&A sites tend
161:
Social Q&A (community Q&A): In social Q&A services, any user in the community can ask or answer questions. Since a question can receive attention from many people unlike expert service, questioners are likely to benefit from the wisdom of crowds. The set of answers made by a large number
273:
Answering behaviors have raised curiosity among researchers, because there is in general no explicit compensations against the activity. Raban and Harper (2008) asked people who answered questions on social Q&A about the motivation of their answering behavior as well in the same survey. The top
235:
The social capital, social exchange, and social cognitive theories explain why users may continuously contribute knowledge to online social Q&A communities. However, some potential users may also feel hesitant to contribute due to fear of criticism from or of misleading online community members
322:
This type of crowd participation in a Q&A platform has the potential to increase the knowledge of individual users, thus improving and speeding up their work process. The abundance of information to which users are exposed through this system is effectively changing the way people collaborate,
222:
to share knowledge. People who trust the software more tend to be involved more in question and answer activities. The knowledge contribution from others leads to even more people to share their knowledge. Users who read more contributed knowledge tend to contribute more generally. Users are also
242:
While there are many different ways of fulfilling information needs, a large number of people are asking questions in online Q&A services. What motivates people to take advantage of those systems? And what do users expect from using these systems? Choi (2014) surveyed 200 people who actively
157:
Expert services: Represents a technological and social way of providing quality question answering service. This service is staffed by domain experts. Organizations other than libraries offer Q&A service where experts in a specific area answer questions. Some are fee-based (e.g., NetWellness
99:
in August 2001 which used Google staffers to answer questions by e-mail. A flat fee (US$ 3.00) was involved for an answer. In April 2002, Google launched Google
Answers, which allowed users to post answers to questions, to replace its predecessor. Google Answers cost askers $ 2 to $ 200 for an
365:
A large number of users shifted from mailing lists to Q&A software. In addition, users of Q&A software tend to provide answer faster. Q&A software and websites are considered forms of crowdsourcing systems, they have wide-ranging impacts that can be either positive or negative.
107:, which was later replaced by the beta version of Yahoo! Answers on December 8, 2005. Ask Yahoo! was discontinued in March 2006. Yahoo! Answers give members the chance to earn points, thus encouraging user participation. To support countries using non-English characters,
84:
answers to them. This kind of software is particularly useful for responding to questions regarding specific industries. Users may learn by regularly answering questions or exchanging views with other industry specialists using the website.
146:
Online Q&A service can be classified into several types in terms of who answer questions, and how services maintain and control the quality of information. Shah et al. (2009) classified online Q&A service into three categories:
891:
1864:
1485:
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asked questions on Yahoo! Answers, and asked them the motivations and expectations of asking behaviors in online Q&A system. The five most significant factors of asking behaviors in the survey are:
184:, and highly interactive browsing and searching capabilities. These features used the crowd power to evaluate the quality of answers and also the reliability of the contributors. Some communities as
1710:
1585:
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tags the users received highest votes in a given domain as "Excellent answer provider". These new features generally integrate some expert verification and service into Q&A community sites.
267:
by “Accurate and complete information”. It is interesting that factors related to information itself surpassed “social and emotional support (2.47 / 5)” which is related to affective needs.
2477:
121:
was founded in June 2009, while the website was made available to the public on June 21, 2010. Users can collaborate by editing questions and suggesting edits to other users' answers.
362:
Q&A sites and software as a way of coordinating development and user support activities, compared to the traditional mailing list, have a significant impact on user behavior.
1228:
Vasilescu, Bogdan; Serebrenik, Alexander; Devanbu, Prem; Filkov, Vladimir (2014). "How social Q&A sites are changing knowledge sharing in open source software communities".
1041:
Jin, Jiahua; Li, Yijun; Zhong, Xiaojia; Zhai, Li (2015-11-01). "Why users contribute knowledge to online communities: An empirical study of an online social Q&A community".
883:
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Ardichvili, Alexander; Page, Vaughn; Wentling, Tim (2003-03-01). "Motivation and barriers to participation in virtual knowledge-sharing communities of practice".
33:
that attempts to answer questions asked by users (Q&A stands for "question and answer"). Q&A software is frequently integrated by large and specialist
1706:
1535:
1581:
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Q&A software is often provided to corporate and specialist sites, so the site and its users can be asked questions as well as provide or receive
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mechanisms, while also featuring no direct mutual interest between its users, trusting the software and the
Internet environment provides some
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535:
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to embrace newer interaction designs than the other types of Q&A sites, by providing features like tagging and rating interfaces,
1814:
232:
can explain the appeal of displaying statistics or getting awarded with badges and similar for contributions to Q&A communities.
1122:
1610:
725:
130:
From 2010 with the widespread use of smartphones and tablets, there is an increasing number of Q&A sites that decide to launch
1431:
1194:
Mao, Ke; Capra, Licia; Harman, Mark; Jia, Yue; A survey of the use of crowdsourcing in software engineering. (2016, September 20)
112:
1760:
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2315:
1781:
1735:
884:"Web Search History: Before Google Answers and Yahoo Answers There Was "Answer Point" From Ask Jeeves | Search Engine Watch"
1215:
Vasilescu, Bogdan, et al. “StackOverflow and GitHub: Associations
Between Software Development and Crowdsourced Knowledge.”
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2174:
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Although many online Q&A communities do not include financial rewards for users' knowledge-contribution behaviors or
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was launched in
September 2009 and features a network of specialized communities with some degree of self-moderation.
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996:
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1946:
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Since then, more and more sites have begun to offer Q&A services. Google launched its Q&A service called
41:
that allows users in similar fields to discuss questions and provide answers to common and specialist questions.
2234:
2203:
1531:
861:
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Support for multiple communities within a single installation, multiple categories within a single community
1839:
1660:
2001:
96:
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379:
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1168:
816:
375:
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http://www.netwellness.org), whereas others offer free-service (e.g., PickAnswer http://pickanswer.com)
151:
1506:
335:
Differentiation of questions and answers (features that affect answers should not affect the question)
2090:
2111:
1230:
Proceedings of the 17th ACM conference on
Computer supported cooperative work & social computing
1153:
964:
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134:. Popular Q&A sites like Yahoo! Answers and Quora have launched their own mobile applications.
1556:
2047:
959:
2351:
1140:
1861:"When will Atlassian be able to share the OSQA to Confluence Questions conversion scripts?"
574:
1806:
8:
1115:
284:
111:
operate different platforms in some Asian countries, such as Yahoo! Chiebukuro (Yahoo!知恵袋
1606:
858:"HOW TO: Set Up a Q&A Website in Minutes – the Best Options Reviewed & Compared"
338:
Differentiation of answers (replies to the question) and comments (replies to an answer)
1251:
1093:
1014:
1002:
131:
1203:
Yao, Tong, et al. “Detecting high-quality posts in community question answering sites”
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Shah, Chirag; Oh, Sanghee; Oh, Jung Sun (2009). "Research agenda for social Q&A".
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992:
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answers from a large community, with lower costs and defect rates to the developers.
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20:
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38:
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1731:
30:
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Maxwell, Harper (2008). "Predictors of answer quality in online Q&A sites".
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are three different connection networks (or graphs) inside communities such as
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65:
57:
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accepted answer. By late
December 2006, it was fully closed to new activity.
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2523:
2394:
1886:
1237:
988:
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seeking recognition when they contribute knowledge on the Q&A software.
2498:
1381:
1331:
229:
115:) in Japan and as Yahoo! Knowledge in Korea, Taiwan, China, and Hong Kong.
2072:
941:
Proceedings of the SIGCHI Conference on Human
Factors in Computing Systems
2281:
2137:"How can I create 'Question Answer' website using Pligg? - Pligg Support"
1936:
1681:
1116:"Motivations and Expectations for Asking Questions Within Online Q&A"
653:
88:
In the late 1990s, a free online service called Answer Point provided by
34:
1456:
1911:
1281:
219:
104:
89:
1968:
353:
Marking a question as a duplicate of another one (if the event occurs)
319:
can find a question that needs answering to and answer that question.
2224:
2195:
1707:"[Fundraiser] Is it possible to migrate from OSQA to AskBot?"
1482:"Are there logs we can look at to see how a user created an account?"
620:
498:
1357:"Questions - Ask Fedora: Community Knowledge Base and Support Forum"
857:
2444:
181:
1887:"[CQ-1475] Publish AAC migration scripts - Atlassian JIRA"
981:
Proceedings of the 22nd international conference on World Wide Web
103:
In early 2000s, Yahoo! launched its online Q&A service called
1835:
1656:
490:
425:
1997:
1582:"How can I add an oauth2 custom login provider to askbot ?"
1227:
486:
Yes (conversion from some apps, server-side dump import/export)
2229:
1941:
1807:"Confluence Questions - Knowledge Sharing Software - Atlassian"
1682:"Import other forums into Askbot — Askbot 0.7.54 documentation"
1306:
471:
438:
81:
2022:
475:
396:
203:
185:
167:
118:
61:
344:
Sorting of answers by votes and questions by answered status
467:
385:
This table shows self-hostable Q&A software solutions.
53:
49:
2086:
1732:"Askbot management commands — Askbot 0.7.54 documentation"
331:
Some other defining features a Q&A software include:
2256:
44:
There are numerous examples of Q&A software in both
1757:"Sending email to askbot — Askbot 0.7.54 documentation"
374:
A complete comparison of Q&A sites can be found at
174:
1232:. CSCW '14. New York, NY, USA: ACM. pp. 342–354.
1067:
247:
Learning; Self-education through acquiring information
2470:"Only logged in users can view questions and answers"
1607:"Skin system in Askbot — Askbot 0.7.54 documentation"
1457:"Moderation in Askbot — Askbot 0.7.54 documentation"
876:
956:
Motivations for
Answering Questions Online Abstract
196:
1166:
979:Wang, Gang (2013). "Wisdom in the social crowd".
2546:
1557:"Optional modules — Askbot 0.7.54 documentation"
1167:Doan, Anhai; Ramakrishnan, Raghu; Halevy, Alon.
1045:. Novel applications of social media analytics.
760:Import from StackExchange with linking profiles
461:Partial (moderators, premoderation recommended)
528:Unpublished migration script from OSQA exists.
253:Seeking advice or opinions for making decisions
2352:"Contributors to q2a/question2answer · GitHub"
1040:
310:Q&A software uses a sourcing model called
1270:https://meta.stackexchange.com/a/37953/260073
1169:"Crowdsourcing Systems on the World-Wide Web"
323:communicate and learn in online communities.
259:Gaining a sense of security through knowledge
1307:"The Askbot Open Source Project on Open Hub"
2379:: CS1 maint: numeric names: authors list (
2335:: CS1 maint: numeric names: authors list (
1782:"Which features do you want in Ask Fedora?"
2225:"The QPixel Open Source Project on GitHub"
2023:"The OSQA Open Source Project on Open Hub"
1657:"Askbot API — Askbot 0.7.54 documentation"
914:Library & Information Science Research
326:
2308:"Releases · q2a/question2answer · GitHub"
1532:"can askbot be a private membership site"
963:
911:
629:25k question top, 5k+ in multiple sites
2257:"Codidact open-source Q&A platform"
953:
938:
850:
2547:
2524:"Creating plugins for Question2Answer"
954:Raban, Daphne R.; Harper, F. Maxwell.
2499:"Creating themes for Question2Answer"
2167:"Releases · Pligg/pligg-cms · GitHub"
1223:
1221:
1211:
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1190:
1188:
864:from the original on 14 February 2014
2282:"What customizations are available?"
2237:from the original on 23 January 2022
1109:
1107:
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1034:
1032:
1030:
978:
483:Partial (read-only, only questions)
175:Change of Q&A community features
1407:"Better multilingual organization?"
16:Online question and answer software
13:
1218:
1206:
1185:
14:
2566:
2164:
1867:from the original on 4 March 2016
1507:"Can you make private questions?"
1104:
1027:
137:
37:and tends to be implemented as a
1949:from the original on 25 May 2015
1113:
305:
197:Social and information structure
2530:from the original on 2018-12-12
2516:
2505:from the original on 2018-12-07
2491:
2480:from the original on 2018-12-09
2462:
2451:from the original on 2018-12-09
2437:
2426:from the original on 2018-12-16
2412:
2401:from the original on 2018-12-09
2387:
2362:from the original on 2015-02-21
2349:
2343:
2318:from the original on 2020-09-14
2305:
2299:
2288:from the original on 2023-03-10
2274:
2263:from the original on 2022-02-06
2249:
2217:
2206:from the original on 2015-04-10
2188:
2177:from the original on 2013-12-14
2158:
2147:from the original on 2015-03-22
2129:
2118:from the original on 2015-05-02
2104:
2093:from the original on 2015-04-23
2087:"Lockergnome Community Q&A"
2079:
2065:
2054:from the original on 2015-04-10
2040:
2029:from the original on 2017-06-30
2015:
2004:from the original on 2015-05-02
1990:
1979:from the original on 2017-10-17
1969:"1,500+ customers and counting"
1961:
1929:
1918:from the original on 2017-06-06
1904:
1893:from the original on 2016-03-04
1879:
1853:
1842:from the original on 2015-05-22
1836:"Questions - Atlassian Answers"
1828:
1817:from the original on 2015-05-26
1799:
1788:from the original on 2015-09-06
1774:
1763:from the original on 2015-04-28
1749:
1738:from the original on 2010-12-31
1724:
1713:from the original on 2016-03-03
1699:
1688:from the original on 2011-01-28
1674:
1663:from the original on 2014-03-02
1649:
1638:from the original on 2015-05-01
1624:
1613:from the original on 2011-06-16
1599:
1588:from the original on 2016-03-04
1574:
1563:from the original on 2015-04-28
1549:
1538:from the original on 2016-03-04
1524:
1513:from the original on 2016-03-03
1499:
1488:from the original on 2016-03-03
1474:
1463:from the original on 2012-08-22
1449:
1438:from the original on 2016-03-03
1424:
1413:from the original on 2016-03-04
1399:
1388:from the original on 2015-04-11
1374:
1349:
1338:from the original on 2015-04-23
1324:
1313:from the original on 2017-06-30
1299:
1288:from the original on 2015-09-08
1274:
1262:
1197:
1160:
1128:from the original on 2017-12-15
1070:Journal of Knowledge Management
894:from the original on 2017-02-04
860:. Inspired Mag. 14 March 2010.
549:45k+ questions in the top site
350:Question tagging and tag search
2112:"OSQA spammers keep siging up"
2048:"What sites are running OSQA?"
1061:
972:
947:
932:
905:
690:Pligg core "story submission"
493:, user tags newsletter, other
209:
1:
2420:"Translating Question2Answer"
1332:"Questions - Ask LibreOffice"
1019:: CS1 maint: date and year (
843:
452:30k+ questions in some sites
369:
191:
56:, OSQA, Question2Answer, and
2555:Question-and-answer websites
1268:There are potentially more.
1043:Information & Management
256:Finding relevant information
250:Having fun asking a question
97:Google Questions and Answers
7:
2196:"Top Users - Pligg Support"
1382:"Domande - Ask LibreOffice"
817:Comparison of Q&A sites
809:
740:10k+ questions in one site
511:25k+ questions in one site
380:Comparison of wiki software
376:Comparison of Q&A sites
281:Enjoyment in helping others
10:
2571:
2445:"Question2Answer features"
926:10.1016/j.lisr.2009.07.006
780:20k+ sites, 6m+ questions
152:Digital reference services
75:
18:
1082:10.1108/13673270310463626
357:
271:Motivation for answering:
1055:10.1016/j.im.2015.07.005
274:ranked motivations are:
264:Expectation from askers:
19:Not to be confused with
2395:"Question2Answer sites"
1238:10.1145/2531602.2531659
989:10.1145/2488388.2488506
327:Other defining features
1148:Cite journal requires
983:. pp. 1341–1352.
623:version of Answerhub)
341:User voting of answers
278:Reputation enhancement
240:Motivation for asking:
228:contribute questions.
60:. Communities such as
1937:"Discourse on GitHub"
1632:"Questions - My site"
1432:"Questions - My site"
888:searchenginewatch.com
347:Approval of an answer
301:Continuance intention
143:on their knowledge.
616:2011? (2015 master)
575:Discourse (software)
501:Confluence Question
393:Stable release date
489:Email Q&A, auto
132:mobile applications
52:formats, including
654:Phabricator Ponder
416:Private questions
216:reputation-ranking
21:Q&A (Symantec)
2233:. 2 August 2022.
1945:. 3 August 2022.
837:Reputation system
807:
806:
746:Ruby, JavaScript
661:Yes (Apache v.2)
594:Ruby, JavaScript
413:Abuse prevention
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1912:"About Biostars"
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1863:. 10 June 2014.
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1359:. Archived from
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1018:
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969:
967:
951:
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902:
900:
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822:Knowledge market
797:Themes, Plugins
768:Question2Answer
388:
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27:Q&A software
2570:
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2130:
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2073:"Is OSQA dead?"
2071:
2070:
2066:
2057:
2055:
2046:
2045:
2041:
2032:
2030:
2021:
2020:
2016:
2007:
2005:
1996:
1995:
1991:
1982:
1980:
1967:
1966:
1962:
1952:
1950:
1935:
1934:
1930:
1921:
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1909:
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1896:
1894:
1885:
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1304:
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1282:"askbot 0.10.2"
1280:
1279:
1275:
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1263:
1248:
1226:
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1138:
1137:
1131:
1129:
1125:
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1105:
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1062:
1039:
1028:
1012:
1011:
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965:10.1.1.119.1962
952:
948:
937:
933:
910:
906:
897:
895:
882:
881:
877:
867:
865:
856:
855:
851:
846:
841:
812:
430:Export, import
419:Authentication
372:
360:
329:
308:
212:
199:
194:
177:
140:
78:
72:Q&A sites.
31:online software
24:
17:
12:
11:
5:
2568:
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2541:
2540:
2515:
2490:
2461:
2436:
2411:
2386:
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2298:
2273:
2248:
2216:
2187:
2157:
2128:
2103:
2078:
2064:
2039:
2014:
1989:
1960:
1928:
1903:
1878:
1852:
1827:
1798:
1773:
1748:
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1026:
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920:(4): 205–209.
904:
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847:
845:
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840:
839:
834:
829:
824:
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729:
722:
721:
719:
717:
715:
713:
711:
709:
707:
705:
703:
700:
697:
696:Maybe (CC-BY)
694:
691:
687:
686:
684:
682:
679:
677:
675:
673:
671:
668:
666:
664:
662:
659:
656:
650:
649:
647:
645:
643:
641:
639:
637:
634:
632:
630:
627:
624:
619:Maybe (GPLv3;
617:
614:
610:
609:
607:
605:
603:
601:
599:
597:
595:
592:
589:
586:
583:
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550:
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541:
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531:
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422:Customisation
420:
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304:
303:
302:
299:
296:
293:
287:
282:
279:
261:
260:
257:
254:
251:
248:
225:Social rewards
211:
208:
198:
195:
193:
190:
176:
173:
172:
171:
164:Stack Exchange
159:
155:
139:
138:Classification
136:
125:Stack Exchange
109:Yahoo! Answers
77:
74:
66:Stack Exchange
58:Stack Exchange
15:
9:
6:
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2074:
2068:
2053:
2049:
2043:
2028:
2024:
2018:
2003:
1999:
1993:
1978:
1974:
1973:discourse.org
1970:
1964:
1948:
1944:
1943:
1938:
1932:
1917:
1913:
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1462:
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1387:
1383:
1377:
1363:on 2018-10-30
1362:
1358:
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1333:
1327:
1312:
1308:
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1287:
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1247:9781450325400
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908:
893:
889:
885:
879:
863:
859:
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832:Crowdsourcing
830:
828:
825:
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750:
748:
745:
742:
739:
736:
734:Yes (AGPLv3)
733:
730:
727:
724:
723:
720:
718:
716:
714:
712:
710:
708:
706:
704:
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685:
683:
680:
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530:
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517:
515:
513:
510:
508:
505:
503:
500:
497:
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492:
488:
485:
482:
480:Skins, other
479:
477:
473:
469:
466:
463:
460:
457:
454:
451:
448:
445:
442:
440:
437:
436:
432:
429:
427:
424:
421:
418:
415:
412:
409:
407:Multilingual
406:
403:
400:
398:
397:Free software
395:
392:
390:
389:
386:
383:
381:
377:
367:
363:
352:
349:
346:
343:
340:
337:
334:
333:
332:
324:
320:
316:
313:
312:crowdsourcing
306:Crowdsourcing
300:
297:
294:
292:
291:self-efficacy
288:
286:
283:
280:
277:
276:
275:
272:
268:
265:
258:
255:
252:
249:
246:
245:
244:
241:
237:
233:
231:
226:
221:
217:
207:
205:
189:
187:
183:
169:
165:
160:
156:
153:
150:
149:
148:
144:
135:
133:
128:
126:
122:
120:
116:
114:
110:
106:
101:
98:
93:
91:
86:
83:
73:
71:
70:closed source
67:
63:
59:
55:
51:
47:
42:
40:
36:
32:
28:
22:
2532:. Retrieved
2518:
2507:. Retrieved
2493:
2482:. Retrieved
2473:
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2453:. Retrieved
2439:
2428:. Retrieved
2414:
2403:. Retrieved
2389:
2364:. Retrieved
2355:
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2320:. Retrieved
2311:
2301:
2290:. Retrieved
2276:
2265:. Retrieved
2251:
2239:. Retrieved
2228:
2219:
2208:. Retrieved
2199:
2190:
2179:. Retrieved
2170:
2160:
2149:. Retrieved
2140:
2131:
2120:. Retrieved
2106:
2095:. Retrieved
2081:
2067:
2056:. Retrieved
2042:
2031:. Retrieved
2017:
2006:. Retrieved
1992:
1981:. Retrieved
1972:
1963:
1951:. Retrieved
1940:
1931:
1920:. Retrieved
1906:
1895:. Retrieved
1881:
1869:. Retrieved
1855:
1844:. Retrieved
1830:
1819:. Retrieved
1810:
1801:
1790:. Retrieved
1776:
1765:. Retrieved
1751:
1740:. Retrieved
1726:
1715:. Retrieved
1701:
1690:. Retrieved
1676:
1665:. Retrieved
1651:
1640:. Retrieved
1626:
1615:. Retrieved
1601:
1590:. Retrieved
1576:
1565:. Retrieved
1551:
1540:. Retrieved
1526:
1515:. Retrieved
1501:
1490:. Retrieved
1476:
1465:. Retrieved
1451:
1440:. Retrieved
1426:
1415:. Retrieved
1401:
1390:. Retrieved
1376:
1365:. Retrieved
1361:the original
1351:
1340:. Retrieved
1326:
1315:. Retrieved
1301:
1290:. Retrieved
1276:
1264:
1229:
1199:
1175:. Retrieved
1162:
1141:cite journal
1130:. Retrieved
1114:Choi, Erik.
1076:(1): 64–77.
1073:
1069:
1063:
1046:
1042:
980:
974:
955:
949:
940:
934:
917:
913:
907:
896:. Retrieved
887:
878:
866:. Retrieved
852:
588:1500+ sites
582:Yes (GPLv2)
446:Yes (GPLv3)
384:
373:
364:
361:
330:
321:
317:
309:
298:Confirmation
295:Satisfaction
270:
269:
263:
262:
239:
238:
234:
230:Gamification
213:
200:
178:
145:
141:
129:
123:
117:
102:
94:
87:
79:
43:
35:corporations
26:
25:
2474:Q2A Q&A
868:12 December
771:2019-01-12
731:2020-12-17
728:(Codidact)
579:2021-10-21
540:2012-04-23
443:2017-03-01
401:Committers
285:Reciprocity
210:Motivations
46:open source
2534:2018-12-08
2509:2018-12-08
2484:2018-12-08
2455:2018-12-08
2430:2018-12-08
2405:2018-12-08
2366:2015-04-23
2322:2015-04-23
2292:2023-03-10
2267:2022-02-06
2241:6 February
2210:2015-04-23
2181:2015-04-23
2151:2015-04-23
2122:2015-04-25
2097:2015-04-23
2058:2015-04-23
2033:2015-04-23
2008:2015-04-23
1998:"Download"
1983:2022-02-06
1953:6 February
1922:2017-06-04
1897:2015-04-23
1846:2015-04-23
1821:2015-04-23
1792:2015-07-25
1767:2015-04-25
1742:2015-04-25
1717:2015-04-25
1692:2015-04-25
1667:2015-04-25
1642:2015-04-25
1617:2015-04-25
1592:2015-04-25
1567:2015-04-25
1542:2015-04-25
1517:2015-04-25
1492:2015-04-25
1467:2015-04-25
1442:2015-04-25
1417:2015-04-25
1392:2015-04-23
1367:2015-04-23
1342:2015-04-23
1317:2015-04-23
1292:2015-04-23
1177:3 February
1132:2017-12-15
898:2017-02-04
844:References
543:Yes (MIT)
370:Comparison
289:Knowledge
220:motivation
192:Mechanisms
105:Ask Yahoo!
90:Ask Jeeves
2200:Pligg CMS
2141:Pligg CMS
1811:Atlassian
1090:1367-3270
1015:cite book
960:CiteSeerX
774:Yes, GPL
621:open core
499:Atlassian
410:Language
182:RSS feeds
39:community
2549:Category
2528:Archived
2503:Archived
2478:Archived
2449:Archived
2424:Archived
2399:Archived
2375:cite web
2360:Archived
2331:cite web
2316:Archived
2286:Archived
2261:Archived
2235:Archived
2204:Archived
2175:Archived
2145:Archived
2116:Archived
2091:Archived
2052:Archived
2027:Archived
2002:Archived
1977:Archived
1947:Archived
1916:Archived
1891:Archived
1871:23 April
1865:Archived
1840:Archived
1815:Archived
1786:Archived
1761:Archived
1736:Archived
1711:Archived
1686:Archived
1661:Archived
1636:Archived
1611:Archived
1586:Archived
1561:Archived
1536:Archived
1511:Archived
1486:Archived
1461:Archived
1436:Archived
1411:Archived
1386:Archived
1336:Archived
1311:Archived
1286:Archived
1256:14196171
1123:Archived
1098:14849211
1007:15626910
892:Archived
862:Archived
810:See also
792:Partial
693:2014-08
536:Biostars
491:tweeting
464:Partial
2165:Pligg.
554:Python
458:Python
426:Web API
76:History
2356:GitHub
2312:GitHub
2230:GitHub
2171:GitHub
1942:GitHub
1254:
1244:
1096:
1088:
1005:
995:
962:
726:QPixel
681:Maybe
636:Maybe
565:Maybe
472:OpenID
439:Askbot
433:Other
358:Impact
82:expert
2350:q2a.
2306:q2a.
1252:S2CID
1172:(PDF)
1126:(PDF)
1119:(PDF)
1094:S2CID
1003:S2CID
658:2015
613:OSQA
585:800+
476:OAuth
449:100+
404:Size
204:Quora
186:Zhihu
168:Quora
119:Quora
62:Quora
2381:link
2337:link
2243:2022
1955:2022
1873:2015
1242:ISBN
1179:2017
1154:help
1086:ISSN
1021:link
993:ISBN
870:2013
789:Yes
786:PHP
783:Yes
777:15+
755:Yes
737:30+
702:2k+
670:PHP
626:30+
591:Yes
546:10+
468:LDAP
455:Yes
378:and
166:and
68:are
54:Qhub
50:SaaS
48:and
1234:doi
1078:doi
1051:doi
985:doi
922:doi
743:No
699:5+
506:No
64:or
29:is
2551::
2526:.
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