Search Results for author: Shib Sankar Dasgupta

Found 11 papers, 8 papers with code

Box-To-Box Transformations for Modeling Joint Hierarchies

no code implementations ACL (RepL4NLP) 2021 Shib Sankar Dasgupta, Xiang Lorraine Li, Michael Boratko, Dongxu Zhang, Andrew McCallum

In Patel et al., (2020), the authors demonstrate that only the transitive reduction is required and further extend box embeddings to capture joint hierarchies by augmenting the graph with new nodes.

Revisiting Virtual Nodes in Graph Neural Networks for Link Prediction

no code implementations29 Sep 2021 EunJeong Hwang, Veronika Thost, Shib Sankar Dasgupta, Tengfei Ma

It is well known that the graph classification performance of graph neural networks often improves by adding an artificial virtual node to the graphs, which is connected to all nodes in the graph.

Clustering Graph Classification +1

Probabilistic Box Embeddings for Uncertain Knowledge Graph Reasoning

1 code implementation NAACL 2021 Xuelu Chen, Michael Boratko, Muhao Chen, Shib Sankar Dasgupta, Xiang Lorraine Li, Andrew McCallum

Knowledge bases often consist of facts which are harvested from a variety of sources, many of which are noisy and some of which conflict, resulting in a level of uncertainty for each triple.

Knowledge Graph Embedding

Box-To-Box Transformation for Modeling Joint Hierarchies

no code implementations1 Jan 2021 Shib Sankar Dasgupta, Xiang Li, Michael Boratko, Dongxu Zhang, Andrew McCallum

In Patel et al. (2020), the authors demonstrate that only the transitive reduction is required, and further extend box embeddings to capture joint hierarchies by augmenting the graph with new nodes.

Knowledge Graphs

Improving Local Identifiability in Probabilistic Box Embeddings

1 code implementation NeurIPS 2020 Shib Sankar Dasgupta, Michael Boratko, Dongxu Zhang, Luke Vilnis, Xiang Lorraine Li, Andrew McCallum

Geometric embeddings have recently received attention for their natural ability to represent transitive asymmetric relations via containment.

Representing Joint Hierarchies with Box Embeddings

1 code implementation AKBC 2020 Dhruvesh Patel, Shib Sankar Dasgupta, Michael Boratko, Xiang Li, Luke Vilnis, Andrew McCallum

Box Embeddings [Vilnis et al., 2018, Li et al., 2019] represent concepts with hyperrectangles in $n$-dimensional space and are shown to be capable of modeling tree-like structures efficiently by training on a large subset of the transitive closure of the WordNet hypernym graph.

Dating Documents using Graph Convolution Networks

1 code implementation ACL 2018 Shikhar Vashishth, Shib Sankar Dasgupta, Swayambhu Nath Ray, Partha Talukdar

While existing approaches for these tasks assume accurate knowledge of the document date, this is not always available, especially for arbitrary documents from the Web.

Document Dating Event Detection +1

AD3: Attentive Deep Document Dater

1 code implementation EMNLP 2018 Swayambhu Nath Ray, Shib Sankar Dasgupta, Partha Talukdar

Knowledge of the creation date of documents facilitates several tasks such as summarization, event extraction, temporally focused information extraction etc.

Document Dating Event Extraction

HyTE: Hyperplane-based Temporally aware Knowledge Graph Embedding

1 code implementation EMNLP 2018 Shib Sankar Dasgupta, Swayambhu Nath Ray, Partha Talukdar

Knowledge Graph (KG) embedding has emerged as an active area of research resulting in the development of several KG embedding methods.

Information Retrieval Knowledge Graph Embedding +4

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