Thesis full text PDF (in Italian) - Politecnico di Milano

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3.2.1 Improvements on “visibility” and “productivity” indicators At the current state, “visibility” and “productivity” values, introduced by the“unified visibility panel”, allow users to check their social activity performedthrough the profiles provided during the registration phase, and to makecomparisons, accessing the same panel of others users.With the aim to improve the indicators’ readability, it would be interesting,through future developments, to replace the numerical values, displayinggraphical bars (see fig. 10).Figure 10 - The "unified visibility panel" after the improvements described on the indicators of"visibility" and "productivity".In order to apply this improvement, it’s necessary to modify the structural datathat contains information related to the users subscribed to the application, askingand memorizing, during the registration phase, information related to their jobprofession (student, professor, comedian, politic, etc.).40
The following table (fig. 11) shows how, even the weights’ values, are subjectedto a changes, introducing the modification.In particular, are shown the default weights used in order to calculate the user’s“productivity” indicator, taking also into consideration its membership’s category(job profession).As for the case implemented, the values have been obtained observing, for eachuser’s category, the social activity during a delta-time period (default Δ=1month),related to a sample of five profiles every social network considered.Productivityindicator's weights(Δ=1month)Twitter(tweets)Facebook(posts)SlideShare(presentations)YouTube(videos)Politics 80 250 0 60Singers 130 100 0 5Comedians 100 180 0 30Professors 80 130 4 0,7Students 50 200 0 0,2Figure 11 - Default weights that will be used by the application in order to calculatethe "productivity" indicator according with the user’s category.By introducing the modification explained above, the computation of an indicator,can be performed using as before the values collected, properly weighed, butmaking also a final normalization, considering all the data collected related to theothers users of the same category, getting as a result, a value between “0” and“100”, which can be displayed through the new graphical indicator.The improvement proposed, not yet implemented, not only will permit to avoidsudden changes of the indicators (values too high or too low) due to possibleinhomogeneity between subscribed users, but also, it will provide to them, thepossibility to make a first comparison between the others subscribed of the samecategory, just looking, thanks to the normalization, to the graphical indicators.41
Page 1 and 2: POLITECNICO DI MILANOFacoltà di In
Page 5 and 6: SOMMARIO Negli ultimi anni, la diff
Page 7 and 8: ABSTRACT The online social networks
Page 9 and 10: 1 INTRODUCTION In the last five yea
Page 11 and 12: elated to the user selected, resumi
Page 13 and 14: 2 BACKGROUND 2.1 Online social ne
Page 15 and 16: After the subscription to an online
Page 17 and 18: 2.2 Socials networks: some examp
Page 19 and 20: Other important features provided b
Page 21 and 22: Others mains features provided by t
Page 23 and 24: Introduce social BPM into a company
Page 25 and 26: online meetings (wiki meeting).Due
Page 27 and 28: 2.4 Analysis on social network T
Page 29 and 30: The high coefficient of local user
Page 31 and 32: 2.4.3 Modelling relationship stre
Page 33 and 34: 3 MAIN CONTRIBUTIONS Nowadays, the
Page 35 and 36: 3.1 User’s real-‐time updat
Page 37 and 38: 3.2 The “unified visibility pa
Page 39 and 40: user during the registration phase
Page 41: ss_slide_vis_wg 3 fb_photo_tag_vis_
Page 45 and 46: 3.3 Rendering temporal charts Tem
Page 47 and 48: As mentioned before, another way in
Page 49 and 50: Unified visibilitypanel1A page, wit
Page 51 and 52: ü Twitter: a micro blogging social
Page 53 and 54: ü Log of information and errors: t
Page 55 and 56: 4.4 Structure of the web applic
Page 57 and 58: 4.5 Data storage In order to store
Page 59 and 60: ü Tag PROFILES: node element that
Page 61 and 62: Figure 18 - Example of table contai
Page 63 and 64: Figure 19 - YouTube’s content tab
Page 65 and 66: Figure 21 - Twitter’s tables crea
Page 67 and 68: ü fb_group: memorizes the number o
Page 69 and 70: Into “util”, others sub-package
Page 71 and 72: First registration phaseThe sequenc
Page 73 and 74: Figure 25, shows the sequences of o
Page 75 and 76: Second registration phaseThe memori
Page 77 and 78: 5. The Facebook’s server response
Page 79 and 80: 2. A request for the page “UserYt
Page 81 and 82: When the job is triggered, the meth
Page 83 and 84: 5 EXPERIMENTS AND EVALUATIONS In o
Page 85 and 86: 5.1 Politics and social networks
Page 87 and 88: Evidence on the use of social netwo
Page 89 and 90: independently by the last upload, r
Page 91 and 92: 5.3 Connection between profiles N
Page 93 and 94:
interconnected the two social netwo
Page 95 and 96:
By introducing the concept of socia
Page 97 and 98:
6.2 Future developments At the cur
Page 99 and 100:
BIBLIOGRAPHY [1] Wikipedia - WEB 2.
Page 101:
[27] SlideShare - SlideShare API -
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