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One of the long-standing challenges in lexical semantics consists in learning representations of words which reflect their semantic properties. The remarkable success of word embeddings for this purpose suggests that high-quality…

Computation and Language · Computer Science 2021-06-16 Yixiao Wang , Zied Bouraoui , Luis Espinosa Anke , Steven Schockaert

Scaling large language models (LLMs) leads to an emergent capacity to learn in-context from example demonstrations. Despite progress, theoretical understanding of this phenomenon remains limited. We argue that in-context learning relies on…

Computation and Language · Computer Science 2023-03-15 Michael Hahn , Navin Goyal

Discourse representation tree structure (DRTS) parsing is a novel semantic parsing task which has been concerned most recently. State-of-the-art performance can be achieved by a neural sequence-to-sequence model, treating the tree…

Computation and Language · Computer Science 2020-05-15 Qiankun Fu , Yue Zhang , Jiangming Liu , Meishan Zhang

Large Language Models (LLMs) are highly sensitive to their input contexts, motivating the development of automated context engineering. However, existing methods predominantly treat this as a global search problem, seeking a single context…

Computation and Language · Computer Science 2026-05-18 Jiachen Zhu , Zhuoying Ou , Congmin Zheng , Yuxiang Chen , Zeyu Zheng , Rong Shan , Lingyu Yang , Lionel Z. Wang , Weiwen Liu , Yong Yu , Weinan Zhang , Jianghao Lin

Managing extensive context remains a critical bottleneck for Large Language Models (LLMs), particularly in applications like long-document question answering and autonomous agents where lengthy inputs incur high computational costs and…

Computation and Language · Computer Science 2026-01-06 Yiqing Zhou , Yu Lei , Shuzheng Si , Qingyan Sun , Wei Wang , Yifei Wu , Hao Wen , Gang Chen , Fanchao Qi , Maosong Sun

The abundant semi-structured data on the Web, such as HTML-based tables and lists, provide commercial search engines a rich information source for question answering (QA). Different from plain text passages in Web documents, Web tables and…

Computation and Language · Computer Science 2020-10-15 Xingyao Zhang , Linjun Shou , Jian Pei , Ming Gong , Lijie Wen , Daxin Jiang

This paper proposes an incremental method that can be used by an intelligent system to learn better descriptions of a thematic context. The method starts with a small number of terms selected from a simple description of the topic under…

Information Retrieval · Computer Science 2010-04-28 Carlos M. Lorenzetti , Ana G. Maguitman

Reasoning, the ability to logically draw conclusions from existing knowledge, is a hallmark of human. Together with perception, they constitute the two major themes of artificial intelligence. While deep learning has pushed the limit of…

Artificial Intelligence · Computer Science 2024-10-18 Zhaocheng Zhu

Representation learning methods for heterogeneous networks produce a low-dimensional vector embedding for each node that is typically fixed for all tasks involving the node. Many of the existing methods focus on obtaining a static vector…

Machine Learning · Computer Science 2021-04-28 Ping Wang , Khushbu Agarwal , Colby Ham , Sutanay Choudhury , Chandan K. Reddy

Document-level relation extraction aims to discover relations between entities across a whole document. How to build the dependency of entities from different sentences in a document remains to be a great challenge. Current approaches…

Computation and Language · Computer Science 2021-03-16 Jiaxin Pan , Min Peng , Yiyan Zhang

Both humans and machines learn the meaning of unknown words through contextual information in a sentence, but not all contexts are equally helpful for learning. We introduce an effective method for capturing the level of contextual…

Computation and Language · Computer Science 2023-11-10 Sungjin Nam , David Jurgens , Gwen Frishkoff , Kevyn Collins-Thompson

Reinforcement learning techniques achieved human-level performance in several tasks in the last decade. However, in recent years, the need for interpretability emerged: we want to be able to understand how a system works and the reasons…

Machine Learning · Computer Science 2023-01-13 Leonardo Lucio Custode , Giovanni Iacca

Generative Large Language Models (LLMs) are capable of being in-context learners. However, the underlying mechanism of in-context learning (ICL) is still a major research question, and experimental research results about how models exploit…

Computation and Language · Computer Science 2025-02-11 Aliakbar Nafar , Kristen Brent Venable , Parisa Kordjamshidi

In this work, we aim at equipping pre-trained language models with structured knowledge. We present two self-supervised tasks learning over raw text with the guidance from knowledge graphs. Building upon entity-level masked language models,…

Computation and Language · Computer Science 2020-04-30 Tao Shen , Yi Mao , Pengcheng He , Guodong Long , Adam Trischler , Weizhu Chen

We investigate the use of in-context learning and prompt engineering to estimate the contributions of training data in the outputs of instruction-tuned large language models (LLMs). We propose two novel approaches: (1) a similarity-based…

Computation and Language · Computer Science 2025-03-20 Milad Fotouhi , Mohammad Taha Bahadori , Oluwaseyi Feyisetan , Payman Arabshahi , David Heckerman

Learning from data streams is among the most vital fields of contemporary data mining. The online analysis of information coming from those potentially unbounded data sources allows for designing reactive up-to-date models capable of…

Machine Learning · Computer Science 2020-10-16 Łukasz Korycki , Bartosz Krawczyk

Large language models (LLMs) encode a large amount of world knowledge. However, as such knowledge is frozen at the time of model training, the models become static and limited by the training data at that time. In order to further improve…

Computation and Language · Computer Science 2023-05-25 Junyi Li , Tianyi Tang , Wayne Xin Zhao , Jingyuan Wang , Jian-Yun Nie , Ji-Rong Wen

Large language models (LLMs) achieved remarkable performance across various tasks. However, they face challenges in managing long documents and extended conversations, due to significantly increased computational requirements, both in…

Computation and Language · Computer Science 2023-10-11 Yucheng Li , Bo Dong , Chenghua Lin , Frank Guerin

Recent work in learning ontologies (hierarchical and partially-ordered structures) has leveraged the intrinsic geometry of spaces of learned representations to make predictions that automatically obey complex structural constraints. We…

Computation and Language · Computer Science 2017-08-03 Xiang Li , Luke Vilnis , Andrew McCallum

Modern machine learning models typically represent inputs as fixed points in a high-dimensional embedding space. While this approach has been proven powerful for a wide range of downstream tasks, it fundamentally differs from the way humans…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Frieda Born , Tom Neuhäuser , Lukas Muttenthaler , Brett D. Roads , Bernhard Spitzer , Andrew K. Lampinen , Matt Jones , Klaus-Robert Müller , Michael C. Mozer