129 citations · 798 across the 46 of their papers we have counts for
5 papers · 1 filter
SupMMD: A Sentence Importance Model for Extractive Summarization using Maximum Mean Discrepancy
Umanga Bista, Alexander Patrick Mathews, Aditya Krishna Menon +1
Most work on multi-document summarization has focused on generic summarization of information present in each individual document set. However, the under-explored setting of update…
UNIPoint: Universally Approximating Point Processes Intensities
Alexander Soen, Alexander Mathews, Daniel Grixti-Cheng +1
Point processes are a useful mathematical tool for describing events over time, and so there are many recent approaches for representing and learning them. One notable open questio…
Variation across Scales: Measurement Fidelity under Twitter Data Sampling
Siqi Wu, Marian-Andrei Rizoiu, Lexing Xie
A comprehensive understanding of data quality is the cornerstone of measurement studies in social media research. This paper presents in-depth measurements on the effects of Twitte…
Transform and Tell: Entity-Aware News Image Captioning
Alasdair Tran, Alexander Mathews, Lexing Xie
We propose an end-to-end model which generates captions for images embedded in news articles. News images present two key challenges: they rely on real-world knowledge, especially…
Describing and Predicting Online Items with Reshare Cascades via Dual Mixture Self-exciting Processes
Quyu Kong, Marian-Andrei Rizoiu, Lexing Xie
It is well-known that online behavior is long-tailed, with most cascaded actions being short and a few being very long. A prominent drawback in generative models for online events…