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Avani Samdariya

dblp:210/6425 · DBLP profile ↗
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1ranked-venue papers
0as first author
0since 2021 · last 2018
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 1Graphics, computer vision, multimedia, augmented reality and games · 1

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Artificial intelligence
1 paper
Probabilistic and Bayesian machine learning · 83% Graph learning · 17%

Topics — the 5 heaviest of 5, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Machine learning › Probabilistic and Bayesian machine learning › probabilistic inference
approximate inference
0.312018
Small-Variance Asymptotics for Nonparametric Bayesian Overlapping Stochastic Blockmodels · IJCAI 2018
Machine learning › Probabilistic and Bayesian machine learning › statistical inference › bayesian inference
bayesian nonparametric model
0.312018
Small-Variance Asymptotics for Nonparametric Bayesian Overlapping Stochastic Blockmodels · IJCAI 2018
Machine learning › Probabilistic and Bayesian machine learning
small-variance asymptotics
0.312018
Small-Variance Asymptotics for Nonparametric Bayesian Overlapping Stochastic Blockmodels · IJCAI 2018
Machine learning › Graph learning
graph clustering
0.112018
Small-Variance Asymptotics for Nonparametric Bayesian Overlapping Stochastic Blockmodels · IJCAI 2018
Machine learning › Graph learning › graph clustering
overlapping community detection
0.112018
Small-Variance Asymptotics for Nonparametric Bayesian Overlapping Stochastic Blockmodels · IJCAI 2018

Methods — techniques the papers use, named apart from their topics

small-variance asymptotics · 0.3greedy algorithm · 0.3bregman divergence · 0.3
YearPublicationVenuePosition
2018 Small-Variance Asymptotics for Nonparametric Bayesian Overlapping Stochastic Blockmodels
abstract
The latent feature relational model (LFRM) for graphs represents each node as having binary memberships in one or more communities. The community memberships can be represented in form of a binary vector and LFRM defines the link probability between any pair of nodes as a bilinear function of their community membership vectors. Moreover, using nonparametric Bayesian prior - Indian Buffet Process - on the community membership matrix enables learning the number of communities automatically from the data. However, despite its modeling flexibility, strong link predictive performance, and nice interpretability of binary embeddings, inference in LFRM remains a challenge and is typically done via MCMC or variational methods. These methods can be slow and may take a long time to converge. In this work, we apply the small variance asymptotics idea to the non-parametric Bayesian LFRM, utilizing the connection between exponential families and Bregman divergence. This leads to an overlapping k-means like objective function for the nonparametric Bayesian LFRM, which can be optimized using generic or specialized solvers. We also propose an iterative greedy algorithm to optimize the objective function and compare our approach with other inference methods on several benchmark datasets. Our results demonstrate that our inference algorithm is competitive to methods such as MCMC while being much faster.
Gundeep Arora, Anupreet Porwal, Kanupriya Agarwal, Avani Samdariya, Piyush Rai
IJCAI4