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Span-based joint extraction simultaneously conducts named entity recognition (NER) and relation extraction (RE) in text span form. Recent studies have shown that token labels can convey crucial task-specific information and enrich token…

Computation and Language · Computer Science 2022-07-19 Bin Ji , Shasha Li , Jie Yu , Jun Ma , Huijun Liu

Abstract Meaning Representation (AMR) is a recently designed semantic representation language intended to capture the meaning of a sentence, which may be represented as a single-rooted directed acyclic graph with labeled nodes and edges.…

Computation and Language · Computer Science 2019-05-30 Rafael T. Anchieta , Marco A. S. Cabezudo , Thiago A. S. Pardo

When users formulate queries, they often include not only the information they seek, but also pragmatic markers such as interrogative phrasing or polite requests. Although these speech act indicators communicate the user\textquotesingle s…

Computation and Language · Computer Science 2025-03-17 João Alberto de Oliveira Lima

Attention mechanism is contributing to the majority of recent advances in machine learning for natural language processing. Additionally, it results in an attention map that shows the proportional influence of each input in its decision.…

Computation and Language · Computer Science 2025-01-23 Duc Hau Nguyen , Cyrielle Mallart , Guillaume Gravier , Pascale Sébillot

We present SpanBERT, a pre-training method that is designed to better represent and predict spans of text. Our approach extends BERT by (1) masking contiguous random spans, rather than random tokens, and (2) training the span boundary…

Computation and Language · Computer Science 2020-01-22 Mandar Joshi , Danqi Chen , Yinhan Liu , Daniel S. Weld , Luke Zettlemoyer , Omer Levy

Argument Mining is defined as the task of automatically identifying and extracting argumentative components (e.g., premises, claims, etc.) and detecting the existing relations among them (i.e., support, attack, rephrase, no relation). One…

Computation and Language · Computer Science 2021-04-16 Ramon Ruiz-Dolz , Stella Heras , Jose Alemany , Ana García-Fornes

Transformers flexibly operate over sets of real-valued vectors representing task-specific entities and their attributes, where each vector might encode one word-piece token and its position in a sequence, or some piece of information that…

Machine Learning · Computer Science 2023-03-14 Cameron Diao , Ricky Loynd

Supervised machine-learning models often underperform in predicting user behaviors from conversational text, hindered by poor crowdsourced label quality and low NLP task accuracy. We introduce the Metadata-Sensitive Weighted-Encoding…

Machine Learning · Computer Science 2025-05-29 Lynnette Hui Xian Ng , Kokil Jaidka , Kaiyuan Tay , Hansin Ahuja , Niyati Chhaya

There is a lot of research interest in encoding variable length sentences into fixed length vectors, in a way that preserves the sentence meanings. Two common methods include representations based on averaging word vectors, and…

Computation and Language · Computer Science 2017-02-10 Yossi Adi , Einat Kermany , Yonatan Belinkov , Ofer Lavi , Yoav Goldberg

Abstract Meaning Representations (AMR) are a broad-coverage semantic formalism which represents sentence meaning as a directed acyclic graph. To train most AMR parsers, one needs to segment the graph into subgraphs and align each such…

Computation and Language · Computer Science 2022-10-26 Chunchuan Lyu , Shay B. Cohen , Ivan Titov

We introduce Span-ConveRT, a light-weight model for dialog slot-filling which frames the task as a turn-based span extraction task. This formulation allows for a simple integration of conversational knowledge coded in large pretrained…

Computation and Language · Computer Science 2020-07-17 Sam Coope , Tyler Farghly , Daniela Gerz , Ivan Vulić , Matthew Henderson

Semiring parsing is an elegant framework for describing parsers by using semiring weighted logic programs. In this paper we present a generalization of this concept: latent-variable semiring parsing. With our framework, any semiring…

Computation and Language · Computer Science 2020-06-09 Esma Balkir , Daniel Gildea , Shay Cohen

Word embeddings are effective intermediate representations for capturing semantic regularities between words, when learning the representations of text sequences. We propose to view text classification as a label-word joint embedding…

Computation and Language · Computer Science 2018-05-14 Guoyin Wang , Chunyuan Li , Wenlin Wang , Yizhe Zhang , Dinghan Shen , Xinyuan Zhang , Ricardo Henao , Lawrence Carin

Process mining focuses on the analysis of recorded event data in order to gain insights about the true execution of business processes. While foundational process mining techniques treat such data as sequences of abstract events, more…

Computation and Language · Computer Science 2021-03-23 Adrian Rebmann , Han van der Aa

High-quality Machine Translation (MT) evaluation relies heavily on human judgments. Comprehensive error classification methods, such as Multidimensional Quality Metrics (MQM), are expensive as they are time-consuming and can only be done by…

With the rapid evolution of autonomous driving technology and intelligent transportation systems, semantic segmentation has become increasingly critical. Precise interpretation and analysis of real-world environments are indispensable for…

Image and Video Processing · Electrical Eng. & Systems 2025-05-29 Zhiyuan Li , Yi Chang , Yuan Wu

We present a lightweight annotation tool, the Data AnnotatoR Tool (DART), for the general task of labeling structured data with textual descriptions. The tool is implemented as an interactive application that reduces human efforts in…

Computation and Language · Computer Science 2020-12-02 Ernie Chang , Jeriah Caplinger , Alex Marin , Xiaoyu Shen , Vera Demberg

Models based on the transformer architecture, such as BERT, have marked a crucial step forward in the field of Natural Language Processing. Importantly, they allow the creation of word embeddings that capture important semantic information…

Computation and Language · Computer Science 2021-01-01 Jacob Turton , David Vinson , Robert Elliott Smith

Transformer architectures have achieved remarkable success across language, vision, and multimodal tasks, and there is growing demand for them to address in-context compositional learning tasks. In these tasks, models solve the target…

Machine Learning · Computer Science 2025-11-26 Wei Chen , Jingxi Yu , Zichen Miao , Qiang Qiu

Deep neural network based speaker embeddings, such as x-vectors, have been shown to perform well in text-independent speaker recognition/verification tasks. In this paper, we use simple classifiers to investigate the contents encoded by…

Audio and Speech Processing · Electrical Eng. & Systems 2020-06-16 Desh Raj , David Snyder , Daniel Povey , Sanjeev Khudanpur