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Detecting Important Events
using Prediction Markets, Text
Mining, and Volatility Modeling
     George Tziralis  Panos Ipeirotis
markets and ef鍖ciency

 strong: prices re鍖ect all information, public and
  private
 semi-strong: prices re鍖ect all publicly available
  information
 weak: past prices cannot be used for market
  prediction
prediction markets?

 Perhaps, the relationship between price and
   information is no more clear than in prediction
   markets (Pennock et al. 2002)
 lets start from the weak form of ef鍖ciency
 is it possible to predict future prices using only
   past ones?
playground

 InTrade
 political contracts
 US nominee elections 08
 800 - 1000 time series instances for each
  contract
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop
Tziralis & Ipeirotis at 3rd Prediction Markets Workshop

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Tziralis & Ipeirotis at 3rd Prediction Markets Workshop

  • 1. Detecting Important Events using Prediction Markets, Text Mining, and Volatility Modeling George Tziralis Panos Ipeirotis
  • 2. markets and ef鍖ciency strong: prices re鍖ect all information, public and private semi-strong: prices re鍖ect all publicly available information weak: past prices cannot be used for market prediction
  • 3. prediction markets? Perhaps, the relationship between price and information is no more clear than in prediction markets (Pennock et al. 2002) lets start from the weak form of ef鍖ciency is it possible to predict future prices using only past ones?
  • 4. playground InTrade political contracts US nominee elections 08 800 - 1000 time series instances for each contract