Search Results for author: Saurav Manchanda

Found 14 papers, 7 papers with code

Evaluating Scholarly Impact: Towards Content-Aware Bibliometrics

1 code implementation EMNLP 2021 Saurav Manchanda, George Karypis

Quantitatively measuring the impact-related aspects of scientific, engineering, and technological (SET) innovations is a fundamental problem with broad applications.

Fooling the Textual Fooler via Randomizing Latent Representations

no code implementations2 Oct 2023 Duy C. Hoang, Quang H. Nguyen, Saurav Manchanda, Minlong Peng, Kok-Seng Wong, Khoa D. Doan

Despite outstanding performance in a variety of NLP tasks, recent studies have revealed that NLP models are vulnerable to adversarial attacks that slightly perturb the input to cause the models to misbehave.

Walk-and-Relate: A Random-Walk-based Algorithm for Representation Learning on Sparse Knowledge Graphs

1 code implementation19 Sep 2022 Saurav Manchanda

As these models only use the observed triplets to estimate the embeddings, they are prone to suffer through data sparsity that usually occurs in the real-world knowledge graphs, i. e., the lack of enough triplets per entity.

Knowledge Graphs Representation Learning +1

An Embedding-Based Grocery Search Model at Instacart

no code implementations12 Sep 2022 Yuqing Xie, Taesik Na, Xiao Xiao, Saurav Manchanda, Young Rao, Zhihong Xu, Guanghua Shu, Esther Vasiete, Tejaswi Tenneti, Haixun Wang

To train the model efficiently on noisy data, we propose a self-adversarial learning method and a cascade training method.

Schema-Aware Deep Graph Convolutional Networks for Heterogeneous Graphs

no code implementations3 May 2021 Saurav Manchanda, Da Zheng, George Karypis

To address this question, we propose our GCN framework 'Deep Heterogeneous Graph Convolutional Network (DHGCN)', which takes advantage of the schema of a heterogeneous graph and uses a hierarchical approach to effectively utilize information many hops away.

Distant-Supervised Slot-Filling for E-Commerce Queries

no code implementations15 Dec 2020 Saurav Manchanda, Mohit Sharma, George Karypis

Slot-filling refers to the task of annotating individual terms in a query with the corresponding intended product characteristics (product type, brand, gender, size, color, etc.).

Retrieval slot-filling +1

Image Generation Via Minimizing Fréchet Distance in Discriminator Feature Space

1 code implementation26 Mar 2020 Khoa D. Doan, Saurav Manchanda, Fengjiao Wang, Sathiya Keerthi, Avradeep Bhowmik, Chandan K. Reddy

We use the intuition that it is much better to train the GAN generator by minimizing the distributional distance between real and generated images in a small dimensional feature space representing such a manifold than on the original pixel-space.

Image Generation

Regression via Implicit Models and Optimal Transport Cost Minimization

1 code implementation3 Mar 2020 Saurav Manchanda, Khoa Doan, Pranjul Yadav, S. Sathiya Keerthi

This paper addresses the classic problem of regression, which involves the inductive learning of a map, $y=f(x, z)$, $z$ denoting noise, $f:\mathbb{R}^n\times \mathbb{R}^k \rightarrow \mathbb{R}^m$.

regression

Image Hashing by Minimizing Discrete Component-wise Wasserstein Distance

1 code implementation29 Feb 2020 Khoa D. Doan, Saurav Manchanda, Sarkhan Badirli, Chandan K. Reddy

In this paper, we show that the high sample-complexity requirement often results in sub-optimal retrieval performance of the adversarial hashing methods.

Image Retrieval Quantization +1

Targeted display advertising: the case of preferential attachment

no code implementations7 Feb 2020 Saurav Manchanda, Pranjul Yadav, Khoa Doan, S. Sathiya Keerthi

We present an experimental analysis on the historical logs of a major display advertising platform (https://www. criteo. com/).

Domain Adaptation

CAWA: An Attention-Network for Credit Attribution

1 code implementation26 Nov 2019 Saurav Manchanda, George Karypis

Experiments on the credit attribution task on a variety of datasets show that the sentence class labels generated by CAWA outperform the competing approaches.

Information Retrieval Multilabel Text Classification +5

Intent term selection and refinement in e-commerce queries

1 code implementation22 Aug 2019 Saurav Manchanda, Mohit Sharma, George Karypis

Moreover, for the tasks of identifying the important terms in a query and for predicting the additional terms that represent product intent, experiments illustrate that our approaches outperform the non-contextual baselines.

Text segmentation on multilabel documents: A distant-supervised approach

no code implementations14 Apr 2019 Saurav Manchanda, George Karypis

Segmenting text into semantically coherent segments is an important task with applications in information retrieval and text summarization.

Information Retrieval Multilabel Text Classification +6

Distributed representation of multi-sense words: A loss-driven approach

no code implementations14 Apr 2019 Saurav Manchanda, George Karypis

Word2Vec's Skip Gram model is the current state-of-the-art approach for estimating the distributed representation of words.

Word Similarity

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