BEGIN:VCALENDAR VERSION:2.0 PRODID:-//128.220.36.25//NONSGML kigkonsult.se iCalcreator 2.26.9// CALSCALE:GREGORIAN METHOD:PUBLISH X-FROM-URL:https://www.clsp.jhu.edu X-WR-TIMEZONE:America/New_York BEGIN:VTIMEZONE TZID:America/New_York X-LIC-LOCATION:America/New_York BEGIN:STANDARD DTSTART:20231105T020000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RDATE:20241103T020000 TZNAME:EST END:STANDARD BEGIN:DAYLIGHT DTSTART:20240310T020000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 RDATE:20250309T020000 TZNAME:EDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:ai1ec-20716@www.clsp.jhu.edu DTSTAMP:20240329T113042Z CATEGORIES;LANGUAGE=en-US:Seminars CONTACT: DESCRIPTION:
Abstract
\nOver the last few years\, deep neural models have taken over the field of natural language processin g (NLP)\, brandishing great improvements on many of its sequence-level tas ks. But the end-to-end nature of these models makes it hard to figure out whether the way they represent individual words aligns with how language b uilds itself from the bottom up\, or how lexical changes in register and d omain can affect the untested aspects of such representations.
\nIn this talk\, I will present NYTWIT\, a dataset created to challenge large l anguage models at the lexical level\, tasking them with identification of processes leading to the formation of novel English words\, as well as wit h segmentation and recovery of the specific subclass of novel blends. I wi ll then present XRayEmb\, a method which alleviates the hardships of proce ssing these novelties by fitting a character-level encoder to the existing models’ subword tokenizers\; and conclude with a discussion of the drawba cks of current tokenizers’ vocabulary creation schemes.
\nBi ography
\nYuval Pinter is a Senior Lecturer in the Department of Comp uter Science at Ben-Gurion University of the Negev\, focusing on natural l anguage processing. Yuval got his PhD at t he Georgia Institute of Technology School of Interactive Computing as a Bl oomberg Data Science PhD Fellow. Before that\, he worked as a Research Eng ineer at Yahoo Labs and as a Computational Linguist at Ginger Software\, a nd obtained an MA in Linguistics and a BSc in CS and Mathematics\, both fr om Tel Aviv University. Yuval blogs (in He brew) about language matters on Dagesh Kal.
DTSTART;TZID=America/New_York:20210910T120000 DTEND;TZID=America/New_York:20210910T131500 LOCATION:Hackerman Hall B17 @ 3400 N. Charles Street\, Baltimore\, MD SEQUENCE:0 SUMMARY:Yuval Pinter (Ben-Gurion University – Virtual Visit) “Challenging a nd Adapting NLP Models to Lexical Phenomena” URL:https://www.clsp.jhu.edu/events/yuval-pinter/ X-COST-TYPE:free X-TAGS;LANGUAGE=en-US:2021\,Pinter\,September END:VEVENT BEGIN:VEVENT UID:ai1ec-20723@www.clsp.jhu.edu DTSTAMP:20240329T113042Z CATEGORIES;LANGUAGE=en-US:Seminars CONTACT: DESCRIPTION:Abstract
\nText simplification aims t o help audiences read and understand a piece of text through lexical\, syn tactic\, and discourse modifications\, while remaining faithful to its cen tral idea and meaning. Thanks to large-scale parallel corpora derived from Wikipedia and News\, much of modern-day text simplification research focu ses on sentence simplification\, transforming original\, more complex sent ences into simplified versions. In this talk\, I present new frontiers tha t focus on discourse operations. First\, we consider the challenging task of simplifying highly technical language\, in our case\, medical texts. We introduce a new corpus of parallel texts in English comprising technical and lay summaries of all published evidence pertaining to different clinic al topics. We then propose a new metric to quantify stylistic differentiat es between the two\, and models for paragraph-level simplification. Second \, we present the first data-driven study of inserting elaborations and ex planations during simplification\, and illustrate the richness and complex ities of this phenomenon.
\nBiography
\nAbstract
\nRaytheon BBN participated in the IARPA MATERIAL program\, whose objective is to enable rapid develop ment of language-independent methods for cross-lingual information retriev al (CLIR). The challenging CLIR task of retrieving documents written (or s poken) in one language so that they satisfy an information need expressed in a different language is exacerbated by unique challenges posed by the M ATERIAL program: limited training data for automatic speech recognition an d machine translation\, scant lexical resources\, non-standardized orthogr aphy\, etc. Furthermore\, the format of the queries and the “Query-Weighte d Value” performance measure are non-standard and not previously studied i n the IR community. In this talk\, we will describe the Raytheon BBN CLIR system\, which was successful at addressing the above challenges and uniqu e characteristics of the program.
\nBiography
\nDamianos Karakos has been at Raytheon BBN f or the past nine years\, where he is currently a Senior Principal Engineer \, Research. Before that\, he was research faculty at Johns Hopkins Univer sity. He has worked on several Government projects (e.g.\, DARPA GALE\, DA RPA RATS\, IARPA BABEL\, IARPA MATERIAL\, IARPA BETTER) and on a variety o f HLT-related topics (e.g.\, speech recognition\, speech activity detectio n\, keyword search\, information retrieval). He has published more than 60 peer-reviewed papers. His research interests lie at the intersection of h uman language technology and machine learning\, with an emphasis on statis tical methods. He obtained a PhD in Electrical Engineering from the Univer sity of Maryland\, College Park\, in 2002.
\n\n
Abstract
\nIn recent years\, the fiel d of Natural Language Processing has seen a profusion of tasks\, datasets\ , and systems that facilitate reasoning about real-world situations throug h language (e.g.\, RTE\, MNLI\, COMET). Such systems might\, for example\, be trained to consider a situation where “somebody dropped a glass on the floor\,” and conclude it is likely that “the glass shattered” as a result . In this talk\, I will discuss three pieces of work that revisit assumpti ons made by or about these systems. In the first work\, I develop a Defeas ible Inference task\, which enables a system to recognize when a prior ass umption it has made may no longer be true in light of new evidence it rece ives. The second work I will discuss revisits partial-input baselines\, wh ich have highlighted issues of spurious correlations in natural language r easoning datasets and led to unfavorable assumptions about models’ reasoni ng abilities. In particular\, I will discuss experiments that show models may still learn to reason in the presence of spurious dataset artifacts. F inally\, I will touch on work analyzing harmful assumptions made by reason ing models in the form of social stereotypes\, particularly in the case of free-form generative reasoning models.
\nBiography
\nRachel Rudinger is an Assistant Professor in the Department of Co mputer Science at the University of Maryland\, College Park. She holds joi nt appointments in the Department of Linguistics and the Institute for Adv anced Computer Studies (UMIACS). In 2019\, Rachel completed her Ph.D. in C omputer Science at Johns Hopkins University in the Center for Language and Speech Processing. From 2019-2020\, she was a Young Investigator at the A llen Institute for AI in Seattle\, and a visiting researcher at the Univer sity of Washington. Her research interests include computational semantics \, common-sense reasoning\, and issues of social bias and fairness in NLP.
DTSTART;TZID=America/New_York:20220916T120000 DTEND;TZID=America/New_York:20220916T131500 LOCATION:Hackerman Hall B17 @ 3400 N. Charles Street\, Baltimore\, MD 21218 SEQUENCE:0 SUMMARY:Rachel Rudinger (University of Maryland\, College Park) “Not So Fas t!: Revisiting Assumptions in (and about) Natural Language Reasoning” URL:https://www.clsp.jhu.edu/events/rachel-rudinger-university-of-maryland- college-park-not-so-fast-revisiting-assumptions-in-and-about-natural-langu age-reasoning/ X-COST-TYPE:free X-TAGS;LANGUAGE=en-US:2022\,Rudinger\,September END:VEVENT BEGIN:VEVENT UID:ai1ec-22375@www.clsp.jhu.edu DTSTAMP:20240329T113042Z CATEGORIES;LANGUAGE=en-US:Seminars CONTACT: DESCRIPTION:Abstract
\nI will present our work on data augmentation using style transfer as a way to im prove domain adaptation in sequence labeling tasks. The target domain is s ocial media data\, and the task is named entity recognition (NER). The pre mise is that we can transform the labelled out of domain data into somethi ng that stylistically is more closely related to the target data. Then we can train a model on a combination of the generated data and the smaller a mount of in domain data to improve NER prediction performance. I will show recent empirical results on these efforts.
\nIf time allows\, I will also give an overview of other research projects I’m currently leading at RiTUAL (Research in Text Understanding and Analysis of Language) lab. The common thread among all these research problems is t he scarcity of labeled data.
\nBiography
\nThamar Solorio is a Professor of Com puter Science at the University of Houston (UH). She holds graduate degree s in Computer Science from the Instituto Nacional de Astrofísica\, Óptica y Electrónica\, in Puebla\, Mexico. Her research interests include informa tion extraction from social media data\, enabling technology for code-swit ched data\, stylistic modeling of text\, and more recently multimodal appr oaches for online content understanding. She is the director and founder o f the RiTUAL Lab at UH. She is the recipient of an NSF CAREER award for he r work on authorship attribution\, and recipient of the 2014 Emerging Lead er ABIE Award in Honor of Denice Denton. She is currently serving a second term as an elected board member of the North American Chapter of the Asso ciation of Computational Linguistics and was PC co-chair for NAACL 2019. S he recently joined the team of Editors in Chief for the ACL Rolling Review (ARR) system. Her research is currently funded by the NSF and by ADOBE. p> DTSTART;TZID=America/New_York:20220923T120000 DTEND;TZID=America/New_York:20220923T131500 LOCATION:Hackerman Hall B17 @ 3400 N. Charles Street\, Baltimore\, MD 21218 SEQUENCE:0 SUMMARY:Thamar Solorio (University of Houston) “Style Transfer for Data Aug mentation in Sequence Labeling Tasks” URL:https://www.clsp.jhu.edu/events/thamar-solorio-university-of-houston-st yle-transfer-for-data-augmentation-in-sequence-labeling-tasks/ X-COST-TYPE:free X-TAGS;LANGUAGE=en-US:2022\,September\,Solorio END:VEVENT BEGIN:VEVENT UID:ai1ec-22380@www.clsp.jhu.edu DTSTAMP:20240329T113042Z CATEGORIES;LANGUAGE=en-US:Seminars CONTACT: DESCRIPTION:
Abstract
\nThe availability of large multilingual pre-trained language models has opened up exciting pathways f or developing NLP technologies for languages with scarce resources. In thi s talk I will advocate for the need to go beyond the most common languages in multilingual evaluation\, and on the challenges of handling new\, unse en-during-training languages and varieties. I will also share some of my e xperiences with working with indigenous and other endangered language comm unities and activists.
\nBiography
\nAntonios Anastasopoulos is an As sistant Professor in Computer Science at George Mason University. In 2019\ , Antonis received his PhD in Computer Science from the University of Notr e Dame and then worked as a postdoctoral researcher at the Language Techno logies Institute at Carnegie Mellon University. His research interests rev olve around computational linguistics and natural language processing with a focus on low-resource settings\, endangered languages\, and cross-lingu al learning.
\nDTSTART;TZID=America/New_York:20220930T120000 DTEND;TZID=America/New_York:20220930T131500 LOCATION:Hackerman Hall B17 @ 3400 N. Charles Street\, Baltimore\, MD 21218 SEQUENCE:0 SUMMARY:Antonios Anastasopoulos (George Mason University) “NLP Beyond the T op-100 Languages” URL:https://www.clsp.jhu.edu/events/antonis-anastasopoulos-george-mason-uni versity/ X-COST-TYPE:free X-TAGS;LANGUAGE=en-US:2022\,Anastasopoulos\,September END:VEVENT BEGIN:VEVENT UID:ai1ec-23882@www.clsp.jhu.edu DTSTAMP:20240329T113042Z CATEGORIES;LANGUAGE=en-US:Seminars CONTACT: DESCRIPTION:
Abstract
\nLarge language models (LLM s) have demonstrated incredible power\, but they also possess vulnerabilit ies that can lead to misuse and potential attacks. In this presentation\, we will address two fundamental questions regarding the responsible utiliz ation of LLMs: (1) How can we accurately identify AI-generated text? (2) W hat measures can safeguard the intellectual property of LLMs? We will intr oduce two recent watermarking techniques designed for text and models\, re spectively. Our discussion will encompass the theoretical underpinnings th at ensure the correctness of watermark detection\, along with robustness a gainst evasion attacks. Furthermore\, we will showcase empirical evidence validating their effectiveness. These findings establish a solid technical groundwork for policymakers\, legal professionals\, and generative AI pra ctitioners alike.
\nBiography
\nLei Li is an Assistant Professor in Language Technology Institute at Carnegie Mellon Un iversity. He received Ph.D. from Carnegie Mellon University School of Comp uter Science. He is a recipient of ACL 2021 Best Paper Award\, CCF Young E lite Award in 2019\, CCF distinguished speaker in 2017\, Wu Wen-tsün AI pr ize in 2017\, and 2012 ACM SIGKDD dissertation award (runner-up)\, and is recognized as Notable Area Chair of ICLR 2023. Previously\, he was a facul ty member at UC Santa Barbara. Prior to that\, he founded ByteDance AI La b in 2016 and led its research in NLP\, ML\, Robotics\, and Drug Discovery . He launched ByteDance’s machine translation system VolcTrans and AI writ ing system Xiaomingbot\, serving one billion users.
DTSTART;TZID=America/New_York:20230901T120000 DTEND;TZID=America/New_York:20230901T131500 LOCATION:Hackerman Hall B17 @ 3400 N. Charles Street\, Baltimore\, MD 21218 SEQUENCE:0 SUMMARY:Lei Li (Carnegie Mellon University) “Empowering Responsible Use of Large Language Models” URL:https://www.clsp.jhu.edu/events/lei-li-carnegie-mellon-university-empow ering-responsible-use-of-large-language-models/ X-COST-TYPE:free X-TAGS;LANGUAGE=en-US:2023\,Li\,September END:VEVENT BEGIN:VEVENT UID:ai1ec-23886@www.clsp.jhu.edu DTSTAMP:20240329T113042Z CATEGORIES;LANGUAGE=en-US:Seminars CONTACT: DESCRIPTION:Abstract
\nThe arms race to build inc reasingly larger\, powerful language models (LMs) in the past year has bee n remarkable. Yet incorporating LMs effectively into practical application s that facilitate manual workflows remains challenging. I will discuss LMs ’ limiting factors and our efforts to overcome them. I will start with cha llenges surrounding efficient and robust LM alignment. I will share insigh ts from our recent paper “Sel f-Instruct” (ACL 2023)\, where we used vanilla (unaligned) LMs for ali gning itself\, an approach that has yielded some success. Then\, I will mo ve on to the challenge of tracing the output of LMs to reliable sources\, a weakness that makes them prone to hallucinations. I will discuss our rec ent approach of ‘according-to’ prom pting\, which steers LMs to quote directly from sources observed in it s pre-training. If time permits\, I will discuss our ongoing project to ad apt LMs to interact with web pages. Throughout the presentation\, I will h ighlight our progress\, and end with questions about our future progress.< /p>\n
Biography
\nDaniel Khashabi is an assistant professor in computer science at Johns Hopkins University and the Center for Language and Speech Processing (CLSP) member. He is interested in bui lding reasoning-driven modular NLP systems that are robust\, transparent\, and communicative\, particularly those that use natural language as the c ommunication medium. Khashabi has published over 40 papers on natural lang uage processing and AI in top-tier venues. His work touches upon developin g. His research has won the ACL 2023 Outstanding Paper Award\, NAACL 2022 Best Paper Award\, research gifts from the Allen Institute for AI\, and an Amazon Research Award 2023. Before joining Hopkins\, he was a postdoctora l fellow at the Allen Institute for AI (2019-2022) and obtained a Ph.D. fr om the University of Pennsylvania in 2019.
DTSTART;TZID=America/New_York:20230908T120000 DTEND;TZID=America/New_York:20230908T131500 LOCATION:Hackerman Hall B17 @ 3400 N. Charles Street\, Baltimore\, MD 21218 SEQUENCE:0 SUMMARY:Daniel Khashabi (Johns Hopkins University) “Building More Helpful L anguage Models” URL:https://www.clsp.jhu.edu/events/daniel-khashabi-johns-hopkins-universit y/ X-COST-TYPE:free X-TAGS;LANGUAGE=en-US:2023\,Khashabi\,September END:VEVENT BEGIN:VEVENT UID:ai1ec-23888@www.clsp.jhu.edu DTSTAMP:20240329T113042Z CATEGORIES;LANGUAGE=en-US:Student Seminars CONTACT: DESCRIPTION:Abstract
\nEmbedding text sequences is a widespread requirement in modern lan guage understanding. Existing approaches focus largely on constant-size re presentations. This is problematic\, as the amount of information containe d in text often varies with the length of the input. We propose a solution called Nugget\, which encodes language into a representation based on a d ynamically selected subset of input tokens. These nuggets are learned thro ugh tasks like autoencoding and machine translation\, and intuitively segm ent language into meaningful units. We demonstrate Nugget outperforms rela ted approaches in tasks involving semantic comparison. Finally\, we illust rate these compact units allow for expanding the contextual window of a la nguage model (LM)\, suggesting new future LMs that can condition on signif icantly larger amounts of content.
DTSTART;TZID=America/New_York:20230911T120000 DTEND;TZID=America/New_York:20230911T131500 LOCATION:Hackerman Hall B17 @ 3400 N. Charles Street\, Baltimore\, MD 21218 SEQUENCE:0 SUMMARY:Student Seminar – Guanghui Qin “Nugget: Neural Agglomerative Embedd ings of Text (ICML 2023)” URL:https://www.clsp.jhu.edu/events/student-seminar-guanghui-qin/ X-COST-TYPE:free X-TAGS;LANGUAGE=en-US:2023\,Qin\,September END:VEVENT BEGIN:VEVENT UID:ai1ec-23892@www.clsp.jhu.edu DTSTAMP:20240329T113042Z CATEGORIES;LANGUAGE=en-US:Seminars CONTACT: DESCRIPTION:Abstract
\nThe growing power in compu ting and AI promises a near-term future of human-machine teamwork. In this talk\, I will present my research group’s efforts in understanding the co mplex dynamics of human-machine interaction and designing intelligent mach ines aimed to assist and collaborate with people. I will focus on 1) tools for onboarding machine teammates and authoring machine assistance\, 2) me thods for detecting\, and broadly managing\, errors in collaboration\, and 3) building blocks of knowledge needed to enable ad hoc human-machine tea mwork. I will also highlight our recent work on designing assistive\, coll aborative machines to support older adults aging in place.
\nBiography
\nChien-Ming Huang is the John C. Malone Assista nt Professor in the Department of Computer Science at the Johns Hopkins Un iversity. His research focuses on designing interactive AI aimed to assist and collaborate with people. He publishes in top-tier venues in HRI\, HCI \, and robotics including Science Robotics\, HRI\, CHI\, and CSCW. His res earch has received media coverage from MIT Technology Review\, Tech Inside r\, and Science Nation. Huang completed his postdoctoral training at Yale University and received his Ph.D. in Computer Science at the University of Wisconsin–Madison. He is a recipient of the NSF CAREER award. https://www.cs.jhu.edu/~cmhuang/
DTSTART;TZID=America/New_York:20230915T120000 DTEND;TZID=America/New_York:20230915T131500 LOCATION:Hackerman Hall B17 @ 3400 N. Charles Street\, Baltimore\, MD 21218 SEQUENCE:0 SUMMARY:Chien-Ming Huang (Johns Hopkins University) “Becoming Teammates: De signing Assistive\, Collaborative Machines” URL:https://www.clsp.jhu.edu/events/chien-ming-huang-johns-hopkins-universi ty/ X-COST-TYPE:free X-TAGS;LANGUAGE=en-US:2023\,Huang\,September END:VEVENT BEGIN:VEVENT UID:ai1ec-23894@www.clsp.jhu.edu DTSTAMP:20240329T113042Z CATEGORIES;LANGUAGE=en-US:Seminars CONTACT: DESCRIPTION:Abstract
\nThe use of NLP in the real m of financial technology is broad and complex\, with applications ranging from sentiment analysis and named entity recognition to question answerin g. Large Language Models (LLMs) have been shown to be effective on a varie ty of tasks\; however\, no LLM specialized for the financial domain has be en reported in the literature. In this work\, we present BloombergGPT\, a 50 billion parameter language model that is trained on a wide range of fin ancial data. We construct a 363 billion token dataset based on Bloomberg’s extensive data sources\, perhaps the largest domain-specific dataset yet\ , augmented with 345 billion tokens from general-purpose datasets. We val idate BloombergGPT on standard LLM benchmarks\, open financial benchmarks\ , and a suite of internal benchmarks that most accurately reflect our inte nded usage. Our mixed dataset training leads to a model that outperforms e xisting models on financial tasks by significant margins without sacrifici ng performance on general LLM benchmarks. Additionally\, we explain our mo deling choices\, training process\, and evaluation methodology.
\nBiography
Mark Dredze is the John C Malone Professo r of Computer Science at Johns Hopkins University and the Director of Rese arch (Foundations of AI) for the JHU AI-X Foundry. He develops Artificial Intelligence Systems based on natural language processing and explores app lications to public health and medicine.
\nProf. Dredze is affiliate d with the Malone Center for Engineering in Healthcare\, the Center for La nguage and Speech Processing\, among others. He holds a joint appointment in the Biomedical Informatics & Data Science Section (BIDS)\, under the Depart ment of Medicine (DOM)\, Division of General Internal Medicine (GIM) in th e School of Medicine. He obtained his PhD from the University of Pennsylva nia in 2009.
DTSTART;TZID=America/New_York:20230918T120000 DTEND;TZID=America/New_York:20230918T131500 LOCATION:Hackerman Hall B17 @ 3400 N. Charles Street\, Baltimore\, MD 21218 SEQUENCE:0 SUMMARY:Mark Dredze (Johns Hopkins University) “BloombergGPT: A Large Langu age Model for Finance” URL:https://www.clsp.jhu.edu/events/mark-dredze-johns-hopkins-university/ X-COST-TYPE:free X-TAGS;LANGUAGE=en-US:2023\,Dredze\,September END:VEVENT BEGIN:VEVENT UID:ai1ec-23983@www.clsp.jhu.edu DTSTAMP:20240329T113042Z CATEGORIES;LANGUAGE=en-US:Seminars CONTACT: DESCRIPTION:Abstract
\nVisually rich documents (scanned or digital) remain important for man y consumer and business use cases. During this talk we will share recent work from our team in the Document In telligence Lab of Adobe Research to understand\, create\, and interact wit h these documents. First\, we’ll share a series of work on building model s to decompose and understand the structure of documents to support use ca ses around document analysis and accessibility. Next\, we’ll explore docum ent semantic understanding for a project where we convert natural language contract clauses to code to support business automation. Finally\, we’ll discuss DocEdit\, a model and dataset that enables editing structured docu ments from natural language.
\nBIOS:
\n< p>Rajiv Jain is a Senior R esearch Scientist in the Document Intelligence Lab in Adobe Research\, whe re his research focuses on understanding the layout\, content\, and intera ction with documents. Prior to joining Adobe\, Rajiv was a consultant at D ARPA\, where he worked on the Media Forensics Program to secure digital im agery. He previously served for 10 years as a researcher for the Departmen t of Defense where he worked on projects around large scale systems\, comp uter vision\, and network security. He received his PhD in computer scienc e from the University of Maryland\, College Park working in the field of d ocument image analysis and retrieval.\nChris Tensmeyer primarily focuses on multi-moda l document layout and content understanding as a Research Scientist in the Document Intelligence Lab of Adobe Research. Since joining Adobe 5 years ago\, his work has directly impacted popular Adobe features such as mobil e Acrobat Liquid Mode\, PDF table extraction\, handwriting recognition\, a nd scanned document detection. Other research interests include general C omputer Vision and Deep Learning. He received his PhD in Computer Science from Brigham Young University on the topic of Deep Learning for Document Image Analysis.
DTSTART;TZID=America/New_York:20230922T120000 DTEND;TZID=America/New_York:20230922T131500 LOCATION:Hackerman Hall B17 @ 3400 N. Charles Street\, Baltimore\, MD 21218 SEQUENCE:0 SUMMARY:Rajiv Jain and Chris Tensmeyer (Adobe) “Document Intelligence at Ad obe Research” URL:https://www.clsp.jhu.edu/events/rajiv-jain-and-chris-tensmeyer-adobe-do cument-intelligence-at-adobe-research/ X-COST-TYPE:free X-TAGS;LANGUAGE=en-US:2023\,Jain and Tensmeyer\,September END:VEVENT BEGIN:VEVENT UID:ai1ec-23896@www.clsp.jhu.edu DTSTAMP:20240329T113042Z CATEGORIES;LANGUAGE=en-US:Seminars CONTACT: DESCRIPTION:Abstract
\nThe field of NLP is in the midst of a disruptive shift\, fueled m ost recently by the advent of large language models (LLMs)\, with impacts on our methodologies\, funding and public perception. While the core techn ologies and scope of real-world impact of our field may be changing (every thing is different!)\, many of the same key challenges faced since the inc eption of our field remain (nothing has changed). In this talk I’ll descri be recent work characterizing and tackling some of these challenges\, nota bly: data-efficient domain adaptation and lifelong learning. I will also a nchor discussion of cycles and shifts in the field by describing findings from a qualitative study of factors shaping the community over time\, incl uding culture\, incentives\, and infrastructure. Through these complementa ry lenses into the past\, present and future\, I aim to inspire shared hop e\, excitement and discussion.
\nBio
\n< p class='x_x_x_MsoNormal'>Emma Strubell is the Raj Reddy Assistant Professor in the Language Technologies Institu te in the School of Computer Science at Carnegie Mellon University\, and a Visiting Scientist at the Allen Institute for Artificial Intelligence. Pr eviously she held research scientist roles at Google and FAIR after earnin g her doctoral degree in 2019 from the University of Massachusetts Amherst . Her research lies at the intersection of natural language processing and machine learning\, with a focus on providing pragmatic solutions to pract itioners who wish to gain insights from natural language text via computat ion- and data-efficient AI. Her work has been recognized with a Madrona AI Impact Award\, best paper awards at ACL and EMNLP\, and cited in news out lets including the New York Times and Wall Street Journal. DTSTART;TZID=America/New_York:20230925T120000 DTEND;TZID=America/New_York:20230925T131500 LOCATION:Hackerman Hall B17 @ 3400 N. Charles Street\, Baltimore\, MD 21218 SEQUENCE:0 SUMMARY:Emma Strubell (Carnegie Mellon University) “Large Language Models: Everything’s Different and Nothing Has Changed” URL:https://www.clsp.jhu.edu/events/emma-strubell-carnegie-mellon-universit y/ X-COST-TYPE:free X-TAGS;LANGUAGE=en-US:2023\,September\,Strubell END:VEVENT BEGIN:VEVENT UID:ai1ec-23898@www.clsp.jhu.edu DTSTAMP:20240329T113042Z CATEGORIES;LANGUAGE=en-US:Student Seminars CONTACT: DESCRIPTION:Abstract
\nAny valuable NLP dataset has traditionally been shipped with crow dsourced categorical labels. Instructions for collecting these labels are easy to communicate and the labels themselves are easy to annotate. Howeve r\, as self-supervision based methods are getting better at basically ever ything\, human annotations may need to provide more nuanced supervision or enable more detailed evaluation in order to be worth further collecting. One natural extension to existing categorical annotation schemes is to obt ain uncertainty information beyond a single hard label. In this talk\, I w ill discuss my recent efforts on introducing scalar labels in place of cat egorical labels as a form of uncertainty annotation. We demonstrate that\, compared to other more obvious annotation schemes for eliciting uncertain ty information\, scalar labels are significantly more cost-effective to an notate\, provide reliable evaluation\, and have a theoretical connection t o existing predictive uncertainty metrics. In particular\, they motivate u sing other losses as surrogates for calibration evaluation.
DTSTART;TZID=America/New_York:20230929T120000 DTEND;TZID=America/New_York:20230929T131500 LOCATION:Hackerman Hall B17 @ 3400 N. Charles Street\, Baltimore\, MD 21218 SEQUENCE:0 SUMMARY:CLSP Student Seminar – Zhengping Jiang “Scalar Labels for Capturing Human Uncertainty” URL:https://www.clsp.jhu.edu/events/clsp-student-seminar-zhengping-jiang/ X-COST-TYPE:free X-TAGS;LANGUAGE=en-US:2023\,Jiang\,September END:VEVENT END:VCALENDAR