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

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others types of them that the social platform enable to share, likevideos, images, links, etc.It’s on the basis of these main social concepts that the SNA [4] (Social NetworkAnalysis), applying the network theory, tries to understand how relations arecreated and how information and contents flows on networks, this, in order toimprove existing systems or to create new ones and to make considerations usefulfor the users themselves (suggesting future interactions or new possiblerelationships) or for the marketing needs.Recently, always thanks to the social networks success, many content aggregatorslike TwitterDeck 1 , has been created. These applications enable users to see in realtimesocial updates coming from different social networks to which they aresubscribed, providing them, through previous authorization, the possibility tointeract with others as if they are really connected to the social website.Despite there are many applications of this type, no ones allows to visualizeintegrated statistics related to a set of social profiles provided by the user.The main objectives of this thesis project are the study of the reputation problemwithin social networks, the definition of analysis metrics and models, and thecreation of a web application through which registered users may view, not onlysocial updates in real-time, but also statistical data daily collected, related to allthe social profiles provided.In particular, during the project implementation, different types between the mostcommon social networks, have been chosen on the basis of the information madeavailable by their API and, through the definition of a specific data structure, allthe daily variations of the social values observed (like content items, posts, views,etc.), have been memorized. Moreover, a page containing a general overview1 TwitterDeck: is a client application implemented through Adobe Air. It allows users to managetheir accounts over different social networks like for example Twitter, Facebook, FourSquare, etc.8
elated to the user selected, resuming all the quantitative information collected,and providing indicators of “visibility” and of “productivity”, has been created.Always through this page, users have the possibility to visualize temporaldiagrams about their social activity carried out over the different social networks.The second chapter describes in detail what online social networks, focusing theattention on the main characteristics and introducing those used for theimplementation phase of the thesis project. It provides also some examples onhow enterprises can benefit adopting them. Finally it draws some real studiesconduced nowadays over social networks.The third chapter describes the main contributions to which a user, subscribed toat least one social network, may benefit thanks to the implementation of the thesisproject. In particular, it defines and describes the “unified visibility panel”, a pagecontaining an overview related to the user’s profiles that resumes all thequantitative information collected, as well as provides indicators of “visibility”and “productivity”. It presents also, through some example, how influencingvariables and the related weights, for both types of indicators, have been chosen.The fourth chapter describes the main requirements on which the implementationof the application is based, showing how the database has been structured in orderto contain all the quantitative information daily collected about the different socialnetworks. Since not all the value collected have temporal references, it alsoexplains how the variation related to this types of values over time, have beenmemorized into the database.Sequence diagrams are also presented with the aim to show how the main featuresof the application, like the visualization of the temporal charts, are managed.The fifth chapther draws how the application has been tested using differentcategories of social profiles. Moreover, it presents some example of temporalgraphs that show the main aspects highlighted during the period observed, withsome considerations made on them.9
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: 1 INTRODUCTION In the last five yea
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 and 42: ss_slide_vis_wg 3 fb_photo_tag_vis_
Page 43 and 44: The following table (fig. 11) shows
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
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Figure 19 - YouTube’s content tab
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Figure 21 - Twitter’s tables crea
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ü fb_group: memorizes the number o
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Into “util”, others sub-package
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First registration phaseThe sequenc
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Figure 25, shows the sequences of o
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Second registration phaseThe memori
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5. The Facebook’s server response
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2. A request for the page “UserYt
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When the job is triggered, the meth
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5 EXPERIMENTS AND EVALUATIONS In o
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5.1 Politics and social networks
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Evidence on the use of social netwo
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independently by the last upload, r
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5.3 Connection between profiles N
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interconnected the two social netwo
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By introducing the concept of socia
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6.2 Future developments At the cur
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BIBLIOGRAPHY [1] Wikipedia - WEB 2.
Page 101:
[27] SlideShare - SlideShare API -
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