Search Results for author: Pio Calderon

Found 3 papers, 2 papers with code

Opinion Market Model: Stemming Far-Right Opinion Spread using Positive Interventions

1 code implementation13 Aug 2022 Pio Calderon, Rohit Ram, Marian-Andrei Rizoiu

To evaluate the effectiveness of positive interventions, we introduce the Opinion Market Model (OMM), a two-tier online opinion ecosystem model that considers both inter-opinion interactions and the role of positive interventions.

Linking Across Data Granularity: Fitting Multivariate Hawkes Processes to Partially Interval-Censored Data

1 code implementation3 Nov 2021 Pio Calderon, Alexander Soen, Marian-Andrei Rizoiu

The multivariate Hawkes process (MHP) is widely used for analyzing data streams that interact with each other, where events generate new events within their own dimension (via self-excitation) or across different dimensions (via cross-excitation).

Interval-censored Hawkes processes

no code implementations16 Apr 2021 Marian-Andrei Rizoiu, Alexander Soen, Shidi Li, Pio Calderon, Leanne Dong, Aditya Krishna Menon, Lexing Xie

We propose the multi-impulse exogenous function - for when the exogenous events are observed as event time - and the latent homogeneous Poisson process exogenous function - for when the exogenous events are presented as interval-censored volumes.

Point Processes

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