no code implementations • SIGDIAL (ACL) 2021 • Sujith Ravi, Zornitsa Kozareva
We propose a novel on-device neural sequence labeling model which uses embedding-free projections and character information to construct compact word representations to learn a sequence model using a combination of bidirectional LSTM with self-attention and CRF.
no code implementations • 24 Jun 2022 • Makoto Yamada, Yuki Takezawa, Ryoma Sato, Han Bao, Zornitsa Kozareva, Sujith Ravi
In this paper, we aim to approximate the 1-Wasserstein distance by the tree-Wasserstein distance (TWD), where TWD is a 1-Wasserstein distance with tree-based embedding and can be computed in linear time with respect to the number of nodes on a tree.
1 code implementation • 8 Sep 2021 • Yuki Takezawa, Ryoma Sato, Zornitsa Kozareva, Sujith Ravi, Makoto Yamada
By contrast, the Wasserstein distance on a tree, called the tree-Wasserstein distance, can be computed in linear time and allows for the fast comparison of a large number of distributions.
no code implementations • 5 Aug 2021 • Markus Dreyer, Mengwen Liu, Feng Nan, Sandeep Atluri, Sujith Ravi
Neural models for abstractive summarization tend to generate output that is fluent and well-formed but lacks semantic faithfulness, or factuality, with respect to the input documents.
1 code implementation • NAACL 2021 • Ramakanth Pasunuru, Mengwen Liu, Mohit Bansal, Sujith Ravi, Markus Dreyer
We also show improvements in a transfer-only setup on the DUC-2004 dataset.
no code implementations • 20 Apr 2021 • Hengxin Fun, Sunil Gandhi, Sujith Ravi
Our ROM approach presents a unified and generalizable framework that enables scaling efficiently to multiple tasks, varying levels of supervision, and optimization choices such as different learning schedules without changing the model architecture.
no code implementations • 17 Apr 2021 • Arthur Bražinskas, Mengwen Liu, Ramesh Nallapati, Sujith Ravi, Markus Dreyer
This applies to scenarios such as a news publisher training a summarizer on dated news and summarizing incoming recent news.
9 code implementations • ACL 2020 • Dorottya Demszky, Dana Movshovitz-Attias, Jeongwoo Ko, Alan Cowen, Gaurav Nemade, Sujith Ravi
Understanding emotion expressed in language has a wide range of applications, from building empathetic chatbots to detecting harmful online behavior.
3 code implementations • ACL 2020 • Ines Chami, Adva Wolf, Da-Cheng Juan, Frederic Sala, Sujith Ravi, Christopher Ré
However, existing hyperbolic embedding methods do not account for the rich logical patterns in KGs.
Ranked #5 on Link Prediction on YAGO3-10
no code implementations • EACL 2021 • Chinnadhurai Sankar, Sujith Ravi, Zornitsa Kozareva
At the heart of text based neural models lay word representations, which are powerful but occupy a lot of memory making it challenging to deploy to devices with memory constraints such as mobile phones, watches and IoT.
1 code implementation • ECCV 2020 • Xin Eric Wang, Vihan Jain, Eugene Ie, William Yang Wang, Zornitsa Kozareva, Sujith Ravi
Recent research efforts enable study for natural language grounded navigation in photo-realistic environments, e. g., following natural language instructions or dialog.
1 code implementation • NeurIPS 2019 • Otilia Stretcu, Krishnamurthy Viswanathan, Dana Movshovitz-Attias, Emmanouil Platanios, Sujith Ravi, Andrew Tomkins
To address this, we propose Graph Agreement Models (GAM), which introduces an auxiliary model that predicts the probability of two nodes sharing the same label as a learned function of their features.
1 code implementation • 13 Nov 2019 • Gaurav Menghani, Sujith Ravi
Knowledge distillation is a widely used technique for model compression.
no code implementations • IJCNLP 2019 • Prabhu Kaliamoorthi, Sujith Ravi, Zornitsa Kozareva
We evaluate our approach on multiple large document text classification tasks.
no code implementations • IJCNLP 2019 • Zornitsa Kozareva, Sujith Ravi
Our model ProSeqo uses dynamic recurrent projections without the need to store or look up any pre-trained embeddings.
no code implementations • 16 Oct 2019 • Azade Nazi, Will Hang, Anna Goldie, Sujith Ravi, Azalia Mirhoseini
We introduce a novel end-to-end approach for learning to cluster in the absence of labeled examples.
no code implementations • 25 Sep 2019 • Xin Wang, Vihan Jain, Eugene Ie, William Wang, Zornitsa Kozareva, Sujith Ravi
Recent research efforts enable study for natural language grounded navigation in photo-realistic environments, e. g., following natural language instructions or dialog.
no code implementations • EACL 2021 • Chinnadhurai Sankar, Sujith Ravi, Zornitsa Kozareva
Recently, there has been a strong interest in developing natural language applications that live on personal devices such as mobile phones, watches and IoT with the objective to preserve user privacy and have low memory.
no code implementations • WS 2019 • Chinnadhurai Sankar, Sujith Ravi
Open domain dialog systems face the challenge of being repetitive and producing generic responses.
no code implementations • ACL 2019 • Sujith Ravi, Zornitsa Kozareva
We show that this results in accelerated inference and performance improvements.
no code implementations • ACL 2019 • Trapit Bansal, Da-Cheng Juan, Sujith Ravi, Andrew McCallum
State-of-the-art models for knowledge graph completion aim at learning a fixed embedding representation of entities in a multi-relational graph which can generalize to infer unseen entity relationships at test time.
2 code implementations • NAACL 2019 • Chinnadhurai Sankar, Sujith Ravi, Zornitsa Kozareva
Neural word representations are at the core of many state-of-the-art natural language processing models.
1 code implementation • 2 Mar 2019 • Azade Nazi, Will Hang, Anna Goldie, Sujith Ravi, Azalia Mirhoseini
Graph partitioning is the problem of dividing the nodes of a graph into balanced partitions while minimizing the edge cut across the partitions.
Ranked #1 on graph partitioning on custom
1 code implementation • 14 Feb 2019 • Da-Cheng Juan, Chun-Ta Lu, Zhen Li, Futang Peng, Aleksei Timofeev, Yi-Ting Chen, Yaxi Gao, Tom Duerig, Andrew Tomkins, Sujith Ravi
Learning image representations to capture fine-grained semantics has been a challenging and important task enabling many applications such as image search and clustering.
Ranked #11 on Image Classification on iNaturalist
1 code implementation • EMNLP 2018 • Sujith Ravi, Zornitsa Kozareva
Deep neural networks reach state-of-the-art performance for wide range of natural language processing, computer vision and speech applications.
no code implementations • 2 Aug 2017 • Sujith Ravi
At its core lies a novel objective that jointly trains using two different types of networks--a full trainer neural network (using existing architectures like Feed-forward NNs or LSTM RNNs) combined with a simpler "projection" network that leverages random projections to transform inputs or intermediate representations into bits.
Ranked #61 on Image Classification on MNIST
no code implementations • 14 Mar 2017 • Thang D. Bui, Sujith Ravi, Vivek Ramavajjala
In this work, we propose a training framework with a graph-regularised objective, namely "Neural Graph Machines", that can combine the power of neural networks and label propagation.
no code implementations • 7 Sep 2016 • Harrie Oosterhuis, Sujith Ravi, Michael Bendersky
Our approach effectively captures the multimodal semantics of queries and videos using state-of-the-art deep neural networks and creates a summary that is both semantically coherent and visually attractive.
no code implementations • 15 Jun 2016 • Anjuli Kannan, Karol Kurach, Sujith Ravi, Tobias Kaufmann, Andrew Tomkins, Balint Miklos, Greg Corrado, Laszlo Lukacs, Marina Ganea, Peter Young, Vivek Ramavajjala
In this paper we propose and investigate a novel end-to-end method for automatically generating short email responses, called Smart Reply.
no code implementations • NAACL 2016 • Justine Zhang, Ravi Kumar, Sujith Ravi, Cristian Danescu-Niculescu-Mizil
Public debates are a common platform for presenting and juxtaposing diverging views on important issues.
no code implementations • 6 Dec 2015 • Sujith Ravi, Qiming Diao
Traditional graph-based semi-supervised learning (SSL) approaches, even though widely applied, are not suited for massive data and large label scenarios since they scale linearly with the number of edges $|E|$ and distinct labels $m$.
no code implementations • TACL 2014 • Sujith Ravi, Sergei Vassilivitskii, Vibhor Rastogi
We propose a new method for unsupervised tagging that finds minimal models which are then further improved by Expectation Maximization training.
no code implementations • NeurIPS 2012 • Amr Ahmed, Sujith Ravi, Alex J. Smola, Shravan M. Narayanamurthy
Clustering is a key component in data analysis toolbox.