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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<meta name="description" content="Christopher Clark Homepage">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<title>Christopher Clark</title>
<!-- Bootstrap core CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="" crossorigin="anonymous">
<style>
.myname {
font-style: italic;
}
.papertitle {
font-weight: bold;
}
</style>
</head>
<body>
<nav id="home" class="navbar navbar-dark bg-dark navbar-expand-sm">
<ul class="nav navbar-nav" style="visibility: visible;">
<li class="nav-item">
<a class="nav-link" href="#home">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#publications">Publications</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#contact">Contact</a>
</li>
</ul>
</nav>
<div class="container">
<div class="pb-2 mt-4 mb-2 border-bottom">
<h1 style="font-family:Serif;font-size:200%"><b>Christopher Clark</b></h1>
</div>
<div class="row">
<div class="col-sm-auto">
<img src="pic1.png" height="250" style="padding-right:5px">
</div>
<div class="col-sm my-auto">
<p class="lead" align="justify">I am a research scientist with <a href="https://prior.allenai.org/">PRIOR</a> team at the non-profit AI research institute the <a href="https://allenai.org/">Allen Institute for AI</a>.
My general research interests are in unified vision and language systems and out-of-domain generalization. My recent projects have involved training <a href="https://arxiv.org/abs/2206.08916">models</a> that can complete many multi-modal tasks with
a shared architecture. Previously I have worked on training models to play the drawing and guessing game <a href="https://arxiv.org/abs/2112.00800">Iconary</a>, and my PhD focused on ways to prevent models using spurious correlations or non-generalization
patterns found in the training data.
</p>
<p class="lead" align="justify">
I received my PhD from <a href="https://www.cs.washington.edu/">UW</a> where I was advised by
<a href="https://www.cs.washington.edu/people/faculty/lsz">Luke Zettlemoyer</a>. Before that I was a <a href="https://allenai.org/predoctoral-young-investigators">Predoctoral Young Investigator</a> at
the AI2 and completed a Masters at the <a href="https://www.ed.ac.uk/">University of Edinburgh</a>.
</p>
</div>
</div>
<h2 id="publications">Publications</h2>
<div style="font-size: 16px;">
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle"> Molmo and PixMo: Open Weights and Open Data for State-of-the-Art Multimodal Models</span> <br>
Matt Deitke*, <span class="myname">Christopher Clark*</span>, Sangho Lee, Rohun Tripathi, Yue Yang, Jae Sung Park, Mohammadreza Salehi, Niklas Muennighoff, Kyle Lo, Luca Soldaini, Jiasen Lu, Taira Anderson, Erin Bransom, Kiana Ehsani, Huong Ngo, YenSung Chen, Ajay Patel, Mark Yatskar, Chris Callison-Burch, Andrew Head, Rose Hendrix, Favyen Bastani, Eli VanderBilt, Nathan Lambert, Yvonne Chou, Arnavi Chheda, Jenna Sparks, Sam Skjonsberg, Michael Schmitz, Aaron Sarnat, Byron Bischoff, Pete Walsh, Chris Newell, Piper Wolters, Tanmay Gupta, Kuo-Hao Zeng, Jon Borchardt, Dirk Groeneveld, Jen Dumas, Crystal Nam, Sophie Lebrecht, Caitlin Wittlif, Carissa Schoenick, Oscar Michel, Ranjay Krishna, Luca Weihs, Noah A. Smith, Hannaneh Hajishirzi, Ross Girshick, Ali Farhadi, Aniruddha Kembhavi
<br>
[<a href="https://arxiv.org/abs/2409.17146">paper</a>]
[<a href="https://github.com/allenai/molmo">code</a>]
[<a href="https://molmo.allenai.org/">demo</a>]
[<a href="https://molmo.allenai.org/blog">blog</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle"> Exposing and Addressing Cross-Task Inconsistency in Unified Vision-Language Models</span> <br>
Adyasha Maharana, Amita Kamath, <span class="myname">Christopher Clark</span>, Mohit Bansal, Aniruddha Kembhavi
<br>
In TMLR 2024
<br>
[<a href="https://arxiv.org/pdf/2303.16133">paper</a>]
[<a href="https://adymaharana.github.io/cococon/">code</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle"> Unified-IO 2: Scaling Autoregressive Multimodal Models with Vision, Language, Audio, and Action</span> <br>
Jiasen Lu*, <span class="myname">Christopher Clark*</span>, Sangho Lee, Zichen Zhang, Savya Khosla, Ryan Marten, Derek Hoiem, Aniruddha Kembhavi
<br>
In CVPR 2024
<br>
[<a href="https://arxiv.org/abs/2312.17172">paper</a>]
[<a href="https://github.com/allenai/unified-io-2">code</a>]
[<a href="https://unified-io-2.allenai.org/">project page</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle">Holodeck: Language Guided Generation of 3D Embodied AI Environments</span> <br>
Yue Yang, Fan-Yun Sun, Luca Weihs, Eli VanderBilt, Alvaro Herrasti, Winson Han, Jiajun Wu, Nick Haber, Ranjay Krishna, Lingjie Liu, Chris Callison-Burch, Mark Yatskar, Aniruddha Kembhavi, <span class="myname">Christopher Clark</span>
<br>
In CVPR 2024
<br>
[<a href="https://arxiv.org/abs/2312.09067">paper</a>]
[<a href="https://github.com/allenai/Holodeck">demo</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle"> <em>I can't believe there's no images!</em> Learning Visual Tasks Using only Language Data</span> <br>
Sophia Gu*, <span class="myname">Christopher Clark*</span>, Aniruddha Kembhavi
<br>
In ICCV 2023
<br>
[<a href="https://arxiv.org/abs/2211.09778">paper</a>]
[<a href="https://github.com/allenai/close">code</a>]
[<a href="https://prior.allenai.org/projects/close">project page</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle">Unified-IO: A Unified Model for Vision, Language, and Multi-Modal Tasks</span> <br>
Jiasen Lu*, <span class="myname">Christopher Clark*</span>, Rowan Zellers, Roozbeh Mottaghi, Aniruddha Kembhavi
<br>
In ICLR 2022
<br>
[<a href="https://arxiv.org/abs/2206.08916">paper</a>]
[<a href="https://unified-io.allenai.org/">demo</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle">A-OKVQA: A Benchmark for Visual Question Answering using World Knowledge</span> <br>
Dustin Schwenk, Apoorv Khandelwal, <span class="myname">Christopher Clark</span>, Kenneth Marino, Roozbeh Mottaghi
<br>
In ECCV 2022
<br>
[<a href="https://arxiv.org/pdf/2206.01718.pdf">paper</a>]
[<a href="https://github.com/allenai/aokvqa">code</a>]
[<a href="https://allenai.org/project/a-okvqa/home">project page</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle">Webly Supervised Concept Expansion for General Purpose Vision Models</span> <br>
Amita Kamath*, <span class="myname">Christopher Clark*</span>, Tanmay Gupta*, Eric Kolve, Derek Hoiem, Aniruddha Kembhavi<br>
In ECCV 2022
<br>
[<a href="https://arxiv.org/abs/2202.02317">paper</a>]
[<a href="https://github.com/allenai/gpv2">code</a>]
[<a href="https://vision-explorer.allenai.org/general_purpose_vision">demo</a>]
[<a href="https://prior.allenai.org/projects/gpv2">project page</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle">Iconary: A Pictionary-Based Game for Testing Multimodal Communication with Drawings and Text</span> <br>
<span class="myname">Christopher Clark</span>, Jordi Salvador, Dustin Schwenk, Derrick Bonafilia, Mark Yatskar, Eric Kolve, Alvaro Herrasti, Jonghyun Choi, Sachin Mehta, Sam Skjonsberg, Carissa Schoenick, Aaron Sarnat, Hannaneh Hajishirzi, Aniruddha Kembhavi, Oren Etzioni, Ali Farhadi
<br>
In EMNLP 2021
<br>
[<a href="https://arxiv.org/abs/2112.00800">paper</a>]
[<a href="https://github.com/allenai/iconary">code</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle">Learning to Model and Ignore Dataset Bias with Mixed Capacity Ensembles</span> <br>
<span class="myname">Christopher Clark</span>, Mark Yatskar, Luke Zettlemoyer<br>
In EMNLP Findings 2020
<br>
[<a href="https://arxiv.org/abs/2011.03856">paper</a>]
[<a href="https://github.com/chrisc36/autobias">code</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle">Don’t Take the Easy Way Out: Ensemble Based Methods for Avoiding Known Dataset Biases</span> <br>
<span class="myname">Christopher Clark</span>, Mark Yatskar, Luke Zettlemoyer<br>
In EMNLP 2019
<br>
[<a href="https://arxiv.org/abs/1909.03683">paper</a>]
[<a href="https://github.com/chrisc36/debias">code</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle">BoolQ: Exploring the Surprising Difficulty of Natural Yes/No Questions</span> <br>
<span class="myname">Christopher Clark</span>, Kenton Lee, Ming-Wei Chang, Tom Kwiatkowski, Michael Collins, Kristina Toutanova<br>
In NAACL 2019
<br>
[<a href="https://arxiv.org/abs/1905.10044">paper</a>]
[<a href="https://github.com/google-research-datasets/boolean-questions">dataset</a>]
[<a href="https://super.gluebenchmark.com/">leaderboard</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<!-- <i><a href="https://aclweb.org/anthology/P18-1078">Simple and Effective Multi-Paragraph Reading Comprehension</a></i> -->
<span class="papertitle">Simple and Effective Multi-Paragraph Reading Comprehension </span>
<br>
<span class="myname">Christopher Clark</span>, Matt Gradner<br>
In ACL 2018 <br>
[<a href="https://aclweb.org/anthology/P18-1078">paper</a>]
[<a href="http://github.com/allenai/document-qa">code</a>]
[<a href="https://documentqa.allenai.org/">demo</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle">Deep Contextualized Word Representations</span> <br>
Matthew E. Peters, Mark Neumann, Mohit Iyyer, Matt Gardner, <span class="myname">Christopher Clark</span>, Kenton Lee, Luke Zettlemoyer <br>
In NAACL 2018 <br>
[<a href="https://arxiv.org/pdf/1802.05365.pdf">paper</a>]
[<a href="https://allennlp.org/elmo">website</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle">
IKE - An Interactive Tool for Knowledge Extraction
</span> <br>
Bhavana Dalvi, Sumithra Bhakthavatsalam, <span class="myname">Chris Clark</span>, Peter Clark, Oren Etzioni, Anthony Fader, Dirk Groeneveld<br>
In AKBC at NAACL 2016 <br>
[<a href="https://pdfs.semanticscholar.org/9bcc/590ecdbdf6121990f407987a90627a1dff3a.pdf">paper</a>]
[<a href="https://allenai.org/software/interactive-knowledge-extraction/">website</a>] [<a href="https://github.com/allenai/ike">code</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle">PDFFigures 2.0: Mining Figures from Research Papers</span> <br>
<span class="myname">Christopher Clark</span>, Jieyu Zhao, Mark Yatskar, Kai-Wei Chang, Vicente Ordonez.<br>
In JCDL 2016 <br>
[<a href="https://ai2-website.s3.amazonaws.com/publications/pdf2.0.pdf">paper</a>]
[<a href="http://pdffigures2.allenai.org/">website</a>]
[<a href="https://github.com/allenai/pdffigures2">code</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle">Looking Beyond Text: Extracting Figures, Tables, and Captions from Computer Science Papers</span> <br>
<span class="myname">Christopher Clark</span>, Santosh Divvala<br>
In Workshop on Scholarly Big Data at AAAI 2015<br>
[<a href="https://sites.google.com/a/allenai.org/figure-extractor/paper.pdf">paper</a>]
[<a href="http://pdffigures.allenai.org/">website</a>]
[<a href="https://github.com/allenai/pdffigures">code</a>]
</p>
</div>
</div>
<div class="media">
<div class="media-body">
<p class="media-heading">
<span class="papertitle">Training Deep Convolutional Neural Networks to Play Go</span> <br>
<span class="myname">Christopher Clark</span>, Amos Storkey<br>
In ICML 2015<br>
[<a href="http://proceedings.mlr.press/v37/clark15.pdf">paper</a>]
[<a href="https://chrisc36.github.io/deep-go">demo</a>]
</p>
</div>
</div>
</div>
<h3 id="contact">Contact</h3>
<div style="padding-top: 5px; padding-bottom: 3px"> chrisc@allenai.org </div>
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