Extracting Emerging Knowledge from Social Media

Today I presented our full paper titled “Extracting Emerging Knowledge from Social Media” at the WWW 2017 conference.

The work is based on a rather obvious assumption, i.e., that knowledge in the world continuously evolves, and ontologies are largely incomplete for what concerns low-frequency data, belonging to the so-called long tail.

Socially produced content is an excellent source for discovering emerging knowledge: it is huge, and immediately reflects the relevant changes which hide emerging entities.

In the paper we propose a method and a tool for discovering emerging entities by extracting them from social media.

Once instrumented by experts through very simple initialization, the method is capable of finding emerging entities; we propose a mixed syntactic + semantic method. The method uses seeds, i.e. prototypes of emerging entities provided by experts, for generating candidates; then, it associates candidates to feature vectors, built by using terms occurring in their social content, and then ranks the candidates by using their distance from the centroid of seeds, returning the top candidates as result.

The method can be continuously or periodically iterated, using the results as new seeds.

The PDF of the full paper presented at WWW 2017 is available online (open access with Creative Common license).

You can also check out the slides of my presentation on Slideshare.

A demo version of the tool is available online for free use, thanks also to our partners Dandelion and Microsoft Azure.

You can TRY THE TOOL NOW if you want.

Social Media Behaviour during Live Events: the Milano Fashion Week #MFW case

Social media are getting more and more  important in the context of live events, such as fairs, exhibits, festivals, concerts, and so on,  as they play an essential role in communicating them to  fans, interest groups, and the general population. These kinds of events are geo-localized within a city or territory and are scheduled within a public calendar.

Together with the people in the Fashion in Process group of Politecnico di Milano, we studied the impact on social media of a specific scenario, the Milano Fashion Week (MFW), which is an important event in Milano for the whole fashion business.

We presented this work at the Location and the Web workshop co-located with the WWW 2017 Conference in Perth, Australia.

We focus our attention on the spreading of social content  in space, measuring the spreading of the event propagation in space. We build different clusters of fashion brands, we characterize several features of propagation in space and we correlate them to the popularity of the brand and temporal propagation.

We show that the clusters along space, time and popularity dimensions are loosely correlated, and therefore trying to  understand the dynamics of the events only based on popularity  aspects would not be appropriate.

The paper PDF is available as open access PDF online on the WWW 2017 Conference web site. You can download it here.

A subsequent paper on the temporal analysis of the same event “Temporal Analysis of Social Media Response to Live Events: The Milano Fashion Week”, focusing on Granger Causality and other measures, has been published at ICWE 2017 and is available in the proceedings by Springer.

The PowerPoint presentation is available on SlideShare.

Modeling and Analyzing Engagement in Social Network Challenges

Within a completely new line of research, we are exploring the power of modeling for human behaviour analysis, especially within social networks and/or in occasion of large scale live events. Participation to challenges within social networks is a very effective instrument for promoting a brand or event and therefore it is regarded as an excellent marketing tool.
Our first reasearch has been published in November 2016 at WISE Conference, covering the analysis of user engagement within social network challenges.
In this paper, we take the challenge organizer’s perspective, and we study how to raise the
engagement of players in challenges where the players are stimulated to
create and evaluate content, thereby indirectly raising the awareness about the brand or event itself. Slides are available on slideshare:

We illustrate a comprehensive model of the actions and strategies that can be exploited for progressively boosting the social engagement during the challenge evolution. The model studies the organizer-driven management of interactions among players, and evaluates
the effectiveness of each action in light of several other factors (time, repetition, third party actions, interplay between different social networks, and so on).
We evaluate the model through a set of experiment upon a real case, the YourExpo2015 challenge. Overall, our experiments lasted 9 weeks and engaged around 800,000  users on two different social platforms; our quantitative analysis assesses the validity of the model.

cross-platform_pdf

 

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CityOmeters, our solution for smartcity analysis and management, presented at EXPO2015

CityOmeters, the complete solution proposed by Fluxedo for smart city management that includes social engagement via micro-planning and big data flow analytics over social content and IoT, has been presented today at EXPO 2015 in Milano, in the Samsung and TIM pavilion.
See the slides below:

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EventOmeters by Fluxedo: the new actor in Event Management. Mobile app + social media (semantic) analytics + IoT

Following up on my recent perspective that moves from model-driven development to hidden-model products, together with the Fluxedo team and in collaboration with WebRatio and Eurotech, we launched a new product called EventOmeters.

EventOmeters allows businesses and event organizers to increase the effectiveness of their events, involving participants and being able to rely on certain measures for the analysis of returns on investment in trade fairs, music, sports and in general of any gathering of people.
The role of the partners is as follows:

  • WebRatio is a leading provider of tools, methods and services for the rapid production of customized applications,
  • Fluxedo is an innovative start-up focusing on mobile app development, social network integration, and semantic social media analytics,
  • Eurotech will integrate data from IoT sensors whose data is made available realtime through cloud technology.
EventOmeters has been already used in the context of the FuoriSalone, within the Milano Design Week. In this setting, the product featured around 20.000 downloads of the official mobile app of the event and an analysis of more than 110.000 social media posts.
You can find more on this at:
Here is the storified summary of the launch event that happened on April 21, 2015 in ExpoGate in Piazza Castello in Milano, Italy:
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My interview on Social Media and Society: what I said (and what I didn’t)

My recent interview on the evolution of social media and its role in modern society is available on YouTube (in Italian only, sorry about that).

While the 3+ minutes of speech necessarily had to be a general overview on the role and recent changes of social media, I wish to summarise here the some technical aspects of it.

As I mentioned in the presentation:

  • social media changed a lot since their early days, from being consumed on PCs to mobile devices, from general purpose social networks connecting friends to digital stages where we “sell” our life to the entire world, from places where to share personal information to platforms where to publish also objective information coming from the real world experience.
  • social media are nowadays a valuable source of information for companies, who look for (and find) their customers through social media marketing and advertising, and public institutions and researchers, that can leverage on a large amount of data for providing benefits to our everyday life
YourExpo2015 - the Instagram Photo Challenge of Expo2015 MilanoWhat I didn’t say is how you can do that. Well, it’s pretty simple.
The ingredients of the recipe:
  • A lot of users sharing their profile
  • A lot of content (photos, statuses, geotags, descriptions) shared by people
  • (which makes up a VERY big data problem)
  • crawlers capturing this (or stream capturing systems) and storage as needed
  • MODELS of the context, the problem and the solution
  • and DATA ANALYSIS TOOLS for studying the data and extracting meaningful information
To me, the most valuable points are MODELS and ANALYSIS TOOLS. We are doing a lot of experiments on mixing model-driven techniques with semantic analysis, NLP, and social media monitoring. One example of our experiments is the YourExpo2015 Instagram Photo Challenge.
Have a look and participate if you like. More on this coming soon!

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Interdisciplinary projects results of Lake Poli School (LaPS) 2014 at Politecnico di Milano

LaPS - Lake Poli School - Politecnico di Milano, Como, 2014

On Friday February 28, 2014 the Como campus of Politecnico di Milano hosted the final workshop of the Lake Poli School (LaPS).

Lake Poli School was born to address integration between universities and companies, alignment between higher education training and external needs, and cross-disciplinary interaction between students from different cultural background.
LaPS is providing an interesting arena of interaction and collaboration between students, companies, teachers and researchers on issues which have emerged as relevant in the last years.
LaPS is connecting students coming from different disciplinary courses: Environmental Engineering, Computer Science and Engineering, and Management Engineering.

LaPS includes three main activities:

  • Development of a business case in which a selected group of international students work with companies, guided by Politecnico’s research fellows.
  • Seminars on ‘hot’ issues as Creativity and Innovation, Networks, Ethics and Social Responsibility.
  • A final workshop to award the best group and the most entrepreneurial work.

During the final workshop, one project has been selected by the jury and one project by the public and the two best projects for 2014.

Here is a picture of the meeting of the jury that selected the winner project of the 2014 edition of LaPS (together with the ballot in front containing the votes of the public):
https://www.instagram.com/p/k9zixmqyVN/ 

Some videos are available on YouTube regarding the preliminary presentations of the groups given in December 2013 too.

And, finally, here is a storified list of social interactions that happened during the event (including links to media):

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