Search Results for author: Dhivya Eswaran

Found 6 papers, 2 papers with code

On the Value of Behavioral Representations for Dense Retrieval

no code implementations11 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.

Retrieval Text Retrieval

Benefit-aware Early Prediction of Health Outcomes on Multivariate EEG Time Series

no code implementations11 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?

Decision Making EEG +2

Higher-Order Label Homogeneity and Spreading in Graphs

1 code implementation18 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.

Fraud Detection Recommendation Systems

SEDANSPOT: Detecting Anomalies in Edge Streams

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.

Anomaly Detection in Edge Streams

Why You Should Charge Your Friends for Borrowing Your Stuff

no code implementations20 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.

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