Search Results for author: Mayank Kejriwal

Found 29 papers, 1 papers with code

HALO: An Ontology for Representing and Categorizing Hallucinations in Large Language Models

no code implementations8 Dec 2023 Navapat Nananukul, Mayank Kejriwal

Recent progress in generative AI, including large language models (LLMs) like ChatGPT, has opened up significant opportunities in fields ranging from natural language processing to knowledge discovery and data mining.

Hallucination

Cost-Efficient Prompt Engineering for Unsupervised Entity Resolution

no code implementations9 Oct 2023 Navapat Nananukul, Khanin Sisaengsuwanchai, Mayank Kejriwal

We use an extensive set of experimental results to show that an LLM like GPT3. 5 is viable for high-performing unsupervised ER, and interestingly, that more complicated and detailed (and hence, expensive) prompting methods do not necessarily outperform simpler approaches.

Entity Resolution Feature Engineering +1

A Knowledge Graph-Based Search Engine for Robustly Finding Doctors and Locations in the Healthcare Domain

no code implementations8 Oct 2023 Mayank Kejriwal, Hamid Haidarian, Min-Hsueh Chiu, Andy Xiang, Deep Shrestha, Faizan Javed

Efficiently finding doctors and locations is an important search problem for patients in the healthcare domain, for which traditional information retrieval methods tend not to work optimally.

Information Retrieval Knowledge Graphs +1

A Formalism and Approach for Improving Robustness of Large Language Models Using Risk-Adjusted Confidence Scores

no code implementations5 Oct 2023 Ke Shen, Mayank Kejriwal

We also propose a risk-centric evaluation framework, and four novel metrics, for assessing LLMs on these risks in both in-domain and out-of-domain settings.

Natural Language Inference

Named Entity Resolution in Personal Knowledge Graphs

no code implementations22 Jul 2023 Mayank Kejriwal

We begin with a formal definition of the problem, and the components necessary for doing high-quality and efficient ER.

Entity Resolution Knowledge Graphs

A Pilot Evaluation of ChatGPT and DALL-E 2 on Decision Making and Spatial Reasoning

no code implementations15 Feb 2023 Zhisheng Tang, Mayank Kejriwal

We conduct a pilot study selectively evaluating the cognitive abilities (decision making and spatial reasoning) of two recently released generative transformer models, ChatGPT and DALL-E 2.

Decision Making

On the Empirical Association between Trade Network Complexity and Global Gross Domestic Product

no code implementations18 Nov 2022 Mayank Kejriwal, Yuesheng Luo

In recent decades, trade between nations has constituted an important component of global Gross Domestic Product (GDP), with official estimates showing that it likely accounted for a quarter of total global production.

Can Language Representation Models Think in Bets?

no code implementations14 Oct 2022 Zhisheng Tang, Mayank Kejriwal

Through a robust body of experiments on four established LRMs, we show that a model is only able to `think in bets' if it is first fine-tuned on bet questions with an identical structure.

Decision Making Natural Language Understanding +2

Understanding Prior Bias and Choice Paralysis in Transformer-based Language Representation Models through Four Experimental Probes

no code implementations3 Oct 2022 Ke Shen, Mayank Kejriwal

Recent work on transformer-based neural networks has led to impressive advances on multiple-choice natural language understanding (NLU) problems, such as Question Answering (QA) and abductive reasoning.

Decision Making Multiple-choice +2

Understanding Substructures in Commonsense Relations in ConceptNet

no code implementations3 Oct 2022 Ke Shen, Mayank Kejriwal

A potential source of structured commonsense knowledge that could be used to derive insights is ConceptNet.

Graph Representation Learning

A Theoretically Grounded Benchmark for Evaluating Machine Commonsense

no code implementations23 Mar 2022 Henrique Santos, Ke Shen, Alice M. Mulvehill, Yasaman Razeghi, Deborah L. McGuinness, Mayank Kejriwal

Preliminary results suggest that the benchmark is challenging even for advanced language representation models designed for discriminative CSR question answering tasks.

Generative Question Answering Multiple-choice

Understanding COVID-19 Vaccine Reaction through Comparative Analysis on Twitter

no code implementations10 Nov 2021 Yuesheng Luo, Mayank Kejriwal

Although multiple COVID-19 vaccines have been available for several months now, vaccine hesitancy continues to be at high levels in the United States.

Predicting Zip Code-Level Vaccine Hesitancy in US Metropolitan Areas Using Machine Learning Models on Public Tweets

no code implementations3 Aug 2021 Sara Melotte, Mayank Kejriwal

At the same time, the advent of social media suggests that it may be possible to get vaccine hesitancy signals at an aggregate level (such as at the level of zip codes) by using machine learning models and socioeconomic (and other) features from publicly available sources.

Open-Ended Question Answering

A Data-Driven Study of Commonsense Knowledge using the ConceptNet Knowledge Base

no code implementations28 Nov 2020 Ke Shen, Mayank Kejriwal

Acquiring commonsense knowledge and reasoning is recognized as an important frontier in achieving general Artificial Intelligence (AI).

Clustering Graph Representation Learning +2

Do Fine-tuned Commonsense Language Models Really Generalize?

no code implementations18 Nov 2020 Mayank Kejriwal, Ke Shen

According to influential leaderboards hosted by the Allen Institute (evaluating state-of-the-art performance on commonsense reasoning benchmarks), models based on such transformer methods are approaching human-like performance and have average accuracy well over 80% on many benchmarks.

Multiple-choice Question Answering

On using Product-Specific Schema.org from Web Data Commons: An Empirical Set of Best Practices

no code implementations27 Jul 2020 Ravi Kiran Selvam, Mayank Kejriwal

Rather than simple analysis, the goal of our study is to devise an empirically grounded set of best practices for using and consuming WDC product-specific schema. org data.

An Experimental Study of The Effects of Position Bias on Emotion CauseExtraction

1 code implementation16 Jul 2020 Jiayuan Ding, Mayank Kejriwal

We therefore conclude that it is the innate bias in this benchmark that caused high accuracy rate of these deep learning models in ECE.

Emotion Cause Extraction Position

Low-supervision urgency detection and transfer in short crisis messages

no code implementations15 Jul 2019 Mayank Kejriwal, Peilin Zhou

Humanitarian disasters have been on the rise in recent years due to the effects of climate change and socio-political situations such as the refugee crisis.

Humanitarian Transfer Learning

FlagIt: A System for Minimally Supervised Human Trafficking Indicator Mining

no code implementations5 Dec 2017 Mayank Kejriwal, Jiayuan Ding, Runqi Shao, Anoop Kumar, Pedro Szekely

In this paper, we describe and study the indicator mining problem in the online sex advertising domain.

TAG

Always Lurking: Understanding and Mitigating Bias in Online Human Trafficking Detection

no code implementations3 Dec 2017 Kyle Hundman, Thamme Gowda, Mayank Kejriwal, Benedikt Boecking

Web-based human trafficking activity has increased in recent years but it remains sparsely dispersed among escort advertisements and difficult to identify due to its often-latent nature.

Decision Making

Using Contexts and Constraints for Improved Geotagging of Human Trafficking Webpages

no code implementations19 Apr 2017 Rahul Kapoor, Mayank Kejriwal, Pedro Szekely

Extracting geographical tags from webpages is a well-motivated application in many domains.

Predicting Role Relevance with Minimal Domain Expertise in a Financial Domain

no code implementations19 Apr 2017 Mayank Kejriwal

Word embeddings have made enormous inroads in recent years in a wide variety of text mining applications.

Word Embeddings

Supervised Typing of Big Graphs using Semantic Embeddings

no code implementations22 Mar 2017 Mayank Kejriwal, Pedro Szekely

We propose a supervised algorithm for generating type embeddings in the same semantic vector space as a given set of entity embeddings.

Entity Embeddings Feature Engineering +1

Information Extraction in Illicit Domains

no code implementations9 Mar 2017 Mayank Kejriwal, Pedro Szekely

Extracting useful entities and attribute values from illicit domains such as human trafficking is a challenging problem with the potential for widespread social impact.

Attribute

An Ensemble Blocking Scheme for Entity Resolution of Large and Sparse Datasets

no code implementations20 Sep 2016 Janani Balaji, Faizan Javed, Mayank Kejriwal, Chris Min, Sam Sander, Ozgur Ozturk

Entity Resolution, also called record linkage or deduplication, refers to the process of identifying and merging duplicate versions of the same entity into a unified representation.

Blocking

Adaptive Candidate Generation for Scalable Edge-discovery Tasks on Data Graphs

no code implementations2 May 2016 Mayank Kejriwal

With such a development, the complexity-reducing scope of DNF schemes becomes applicable to a variety of problems, including entity resolution and type alignment between heterogeneous graphs, and link prediction in networks represented as attributed graphs.

Blocking Link Prediction

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