no code implementations • 11 Aug 2022 • Nan Jiang, Dhivya Eswaran, Choon Hui Teo, Yexiang Xue, Yesh Dattatreya, Sujay Sanghavi, Vishy Vishwanathan
We consider text retrieval within dense representational space in real-world settings such as e-commerce search where (a) document popularity and (b) diversity of queries associated with a document have a skewed distribution.
no code implementations • 11 Nov 2021 • Shubhranshu Shekhar, Dhivya Eswaran, Bryan Hooi, Jonathan Elmer, Christos Faloutsos, Leman Akoglu
Given a cardiac-arrest patient being monitored in the ICU (intensive care unit) for brain activity, how can we predict their health outcomes as early as possible?
1 code implementation • 18 Feb 2020 • Dhivya Eswaran, Srijan Kumar, Christos Faloutsos
Vertices with stronger connections participate in higher-order structures in graphs, which calls for methods that can leverage these structures in the semi-supervised learning tasks.
1 code implementation • ICDM 2018 • Dhivya Eswaran, Christos Faloutsos
Given a stream of edges from a time-evolving (un)weighted (un)directed graph, we consider the problem of detecting anomalous edges in near real-time using sublinear memory.
Ranked #2 on Anomaly Detection in Edge Streams on Darpa
no code implementations • 20 May 2017 • Kijung Shin, Euiwoong Lee, Dhivya Eswaran, Ariel D. Procaccia
We consider goods that can be shared with k-hop neighbors (i. e., the set of nodes within k hops from an owner) on a social network.