Dearman, D., Kellar, M., and Truong, K. N. An examination of daily information needs and sharing opportunities. In Proceedings of the 2008 ACM conference on Computer supported cooperative work (New York, NY, USA, 2008), CSCW ’08, ACM, pp. 679–688. [PDF]
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The main argument of this work is that context-sensitive information needs can be supported by individuals in the social network. The authors support the idea that many contextual needs require specialized knowledge that is often not available on the Internet.
Under this assumption they conducted a 4-weeks diary study in which a diverse group of participants recorded the information they needed or that they wanted to share. They collected 1290 entries that were analyzed using grounded theory affinity analysis. They grouped the needs into 9 main categories with relative subcategories. Participants were able to satisfy their needs 45.3% of the time. Participants satisfied their information need by asking someone, going to a location where the information was available, look the answer on the web and user other methods suchg as the GPS, paper documents, trial and error and other media.
By looking qualitatively at the answers they observed some interesting facts: The timeliness of the information was a key factor and also the trust relationship with the source of the answer was an higly quoted variable that participants took into account.
The basic idea of the application is that you can formulate a wish and share it with people around you. The wish takes the form of a seed that you need to cultivate by giving enough water and light. Little by little the wish grows into a tree and it starts making flowers. People nearby can see your wish because it is planted at a geolocated position and can send you comments and encouraging messages to help you make you wish come true.
The concept of the app came out of the joint work that we did last summer with the UDSI team in Barcelona. I also like the idea because of my past work with the DigitalSeed [link] etc.
If you want to try out the app: WishTree

Heimonen, T. Information needs and practices of active mobile internet users. In Proceedings of the 6th International Conference on Mobile Technology, Application & Systems (New York, NY, USA, 2009), Mobility ’09, ACM, pp. 50:1–50:8. [PDF]
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The authors of this paper looked at the effect of dataplan on smartphones have on mobile information needs and poractices. The authors used a diary study with 8 participants over the course of two weeks. Participants were filling a web form where they were asked to answer a certain number of questions (where / when / what / how / did you find what you were looking for?). They used a strict definition of information needs: need for a piece of informationthat you cannot recall from memory or that is not immediately available to you and that you would likely spend few minutes attempting to solve it while mobile.
They classified with simple coding the information needs into 15 topical categories. They divided the needs into utilitarian (pragmatic) and hedonic (entertainment). Most of the needs, 45%, were addressed immediately. The majority of the users answered the needs through web search. Interestingly, they also found that the contributing reasonto the information need is not easily attributable to any environmental factor (33% of the times).
The paper also presents some nice implications for design, such as the use of communal knowledge to solve mobile search needs. Also, they suggested several techniques to take advantage of the user’s interaction to predict mobile information needs.
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