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Avi Sil

9 accepted papers

2023

Moving Beyond Downstream Task Accuracy for Information Retrieval Benchmarking

ACL 2023findings

Neural information retrieval (IR) systems have progressed rapidly in recent years, in large part due to the release of publicly available benchmarking tasks. Unfortunately, some dimensions of this progress are illusory: the majority of the popular IR benchmarks today focus exclusively on downstream…

2022

Not to Overfit or Underfit the Source Domains? An Empirical Study of Domain Generalization in Question Answering

EMNLP 2022main

Machine learning models are prone to overfitting their training (source) domains, which is commonly believed to be the reason why they falter in novel target domains. Here we examine the contrasting view that multi-source domain generalization (DG) is first and foremost a problem of mitigating sourc…

2021

Capturing Row and Column Semantics in Transformer Based Question Answering over Tables

NAACL 2021long

Transformer based architectures are recently used for the task of answering questions over tables. In order to improve the accuracy on this task, specialized pre-training techniques have been developed and applied on millions of open-domain web tables. In this paper, we propose two novel approaches…

2021

Event Time Extraction and Propagation via Graph Attention Networks

NAACL 2021long

Grounding events into a precise timeline is important for natural language understanding but has received limited attention in recent work. This problem is challenging due to the inherent ambiguity of language and the requirement for information propagation over inter-related events. This paper firs…

2021

InfoSurgeon: Cross-Media Fine-grained Information Consistency Checking for Fake News Detection

ACL 2021long

To defend against machine-generated fake news, an effective mechanism is urgently needed. We contribute a novel benchmark for fake news detection at the knowledge element level, as well as a solution for this task which incorporates cross-media consistency checking to detect the fine-grained knowled…

2021

VAULT: VAriable Unified Long Text Representation for Machine Reading Comprehension

ACL 2021short

Existing models on Machine Reading Comprehension (MRC) require complex model architecture for effectively modeling long texts with paragraph representation and classification, thereby making inference computationally inefficient for production use. In this work, we propose VAULT: a light-weight and…

Cited by 3SourcePDFScholar
2020

A Multilingual Reading Comprehension System for more than 100 Languages

COLING 2020system demonstrations

This paper presents M-GAAMA, a Multilingual Question Answering architecture and demo system. This is the first multilingual machine reading comprehension (MRC) demo which is able to answer questions in over 100 languages. M-GAAMA answers questions from a given passage in the same or different langua…

2020

Towards building a Robust Industry-scale Question Answering System

COLING 2020industry

Industry-scale NLP systems necessitate two features. 1. Robustness: “zero-shot transfer learning” (ZSTL) performance has to be commendable and 2. Efficiency: systems have to train efficiently and respond instantaneously. In this paper, we introduce the development of a production model called GAAMA…

Cited by 16SourcePDFScholar