Phil 6.16.17

5:30 – 6:30 BRI

  • Catching up on email, etc.


  • Implementing LETHAL and RESPAWN options
  • Poster presentation! See if I can get a space near a table/outlet
  • Talks
  • Ece Kamar Humans to the rescue
    • Troubleshooting of ML systems
    • What happens when systems are functioning in the wild
    • Biases in ML – minority representations of well, minorities (blind spots – unknown unknown)
    • Beat the machine Attenberg 2011
    • Multi-armed bandit – exploration – but how? What is the source to explore
    • Hard to debug. What about AI making models that are understandable and effective. E.g. build low-variable systems using GP
  • Nick Ouellette – Validating Models of Collective Behavior
    • Flocks and swarms
      • Movement + interaction rules+interaction range -> group structure function
      • Vivsek et. al. PRL (1995) alignment only
      • How to benchmark. What is a good/bad model
    • ‘
  • Creating Collective Intelligence – Dan Weld (Relevant to curating and BRI)
    • Provisioning mixed computer – human teams
    • Objective -> initial workflow -> improve, repeat (Self-optimizing workflow)
    • Sliders as a way of understanding the sers, then a place to clarify. IMPORTANT. Then cluster on the confusions, and update the query/ Sample from the confusion results to test improvement.
    • Gold questions (flags) that are known. What percentage get inserted for optimal user response
    • Partially Observable Makkov decision process (Belief state as input)/ Build a policy that provides the optimal result
    • Explore/Exploit strategy since partial information
    • MicroTalk Test Task <- serendipity injection
    • Select for discerning worker Flesch-Kincaid model?. Need to look into that.
    • Conclusions
      • Tools for creating collective intelligence
      • Self-Optimizing Workflows
      • Getting workers to argue
  • Chris Welty – Google – moderator for session 4
  • Andres Abeliuk – Controlling Collective Behavior through Position Bias
    • display policies affect what customers choose
    • Youtube, spotify, etc use ratings/reviews, PageRank, etc form feedback loops
    • How do we mitigate these biases
    • Salgannik MusicLab Science (2006?) runaway feedback loops to first user advantage
    • This study ranks by listens/downloads. Does this affect the result. Four ranking policies, and yesy/no social signals
    • Random ordering with no social signal seems to provide most consistent ranking with least inequality
  • Brent Hecht: The Role of Human Geography in Collective Intelligence
    • Physical Geography
    • Spatial Computing
    • Human Geography
      • Spatial homophily – we live and spend time near people like us. Impossible to overstate
        • Worker location
        • Location of the work
        • Distance between these two
        • If a bank account is required, for example, you will have spatial bias. Pokemon Go was influenced by a biased crowdsourced dataset
        • Interaction decreases with distance
        • Structured variation population density
        • Highest in urban cores lower in suburbs, lowest in rural.
        • Johnson Et al SIGCHI 2016
        • Mental maps, region theory
  • Hila Lifshitz-Assaf Delineating Role Behaviors in Wikipedia
    • Emergent roles determined by clusters of activity
      • Temporal distance is as influential as geographic distance
      • Watching what people do over time – how much chaos, how much order
      • Need to dig up these papers
      • Why did you choose the motivation axis?
  • Mehdi Moussaid – The Propagation of accurate judgements in Experimental Transmission Chains
    • Judgement propagation – well known
    • Behavioral processes affect the level of influence – poorly known
    • Experiment is sequential, but each person is exposed to the judgement of the prior results.
    • Visual perception task, where the user determines the overall direction of a cluster of dots
    • First person has an easy task – clear movement, but the others have a noisier version of the task, but the same answer
    • Propagation slows down with social distance and falls to zero around 3
  • Yue Han – Collective exploration: Remixing with human-based search Algorithms
    • This is mapping. Not sure how the semantic spoace is mapped WRT what. Amd what i you run it in reverse?
  • Kennith Huang – Real Time On-Demand Crowd powered entity extraction
    •  Output agreement mechanism – agreement gets reward.
  • John Harlow – Proactively Identifying and Correcting for Social Biases in Datasets Proliferating into Civic Technology
    • Identify biases of the past algorithmically and initiate corrections
    • Being digitally invisible
    • How people in a place understand the world around them?
  • Yun Huang – BandCaption: Crowdsourcing  Video Caption Corrections
  • John Prpic – Unpacking Blockchain
  • The poster went well!
  • Kate Starbird Online rumouring
    • Overlapping narratives and websites supporting alternative narratives
    • Shooting related search terms for 9 months of twitter
    • Gun takeaway agenda.
    • False Triangulation – same information distributed across different sources
    • Is there some sort of evolution of low dimension attractors?
  • Gamification became co opted by efficiency and lost its game-like option Efficiency destroys diversity.

The Russian “Firehose of Falsehood” Propaganda Model Why It Might Work and Options to Counter It

  • Is there a difference between ‘diversity’, ‘noise’, and disinformation/alt narratives. I think there is some kind of monitoring the ‘native population’ and then figuring ways to amplify? What is the adversary signaling
  • Can you build a high-engagement game that will attract those in the alt-narratives an expands their perspective? Deliberation that is not tied directly to the outcome
  • The alt-narrative ecosystem is not about signalling capability. It’s about signalling reach. And through the reach to powerful players, instigating uncertainty and disruption..

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