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Traditional semantic similarity models often fail to encapsulate the external context in which texts are situated. However, textual datasets generated on mobile platforms can help us build a truer representation of semantic similarity by…

Computation and Language · Computer Science 2018-12-27 Peter Hansel , Nik Marda , William Yin

State-of-the-art semantic image segmentation methods are mostly based on training deep convolutional neural networks (CNNs). In this work, we proffer to improve semantic segmentation with the use of contextual information. In particular, we…

Computer Vision and Pattern Recognition · Computer Science 2017-05-03 Guosheng Lin , Chunhua Shen , Anton van den Hengel , Ian Reid

A central problem in sequential decision making is to develop algorithms that are practical and computationally efficient, yet support the use of flexible, general-purpose models. Focusing on the contextual bandit problem, recent progress…

Machine Learning · Computer Science 2022-07-14 Yinglun Zhu , Dylan J. Foster , John Langford , Paul Mineiro

A key goal in stochastic contextual linear bandits is to efficiently learn a near-optimal policy. Prior algorithms for this problem learn a policy by strategically sampling actions but naively (passively) sampling contexts from the…

Machine Learning · Computer Science 2026-05-26 Emma Brunskill , Ishani Karmarkar , Zhaoqi Li

We present a memory-based model for context-dependent semantic parsing. Previous approaches focus on enabling the decoder to copy or modify the parse from the previous utterance, assuming there is a dependency between the current and…

Computation and Language · Computer Science 2021-10-15 Parag Jain , Mirella Lapata

While contextualized word embeddings have been a de-facto standard, learning contextualized phrase embeddings is less explored and being hindered by the lack of a human-annotated benchmark that tests machine understanding of phrase…

Computation and Language · Computer Science 2023-02-03 Thang M. Pham , Seunghyun Yoon , Trung Bui , Anh Nguyen

Recent work in neural machine translation has demonstrated both the necessity and feasibility of using inter-sentential context -- context from sentences other than those currently being translated. However, while many current methods…

Computation and Language · Computer Science 2021-06-03 Patrick Fernandes , Kayo Yin , Graham Neubig , André F. T. Martins

We introduce a novel setup for low-resource task-oriented semantic parsing which incorporates several constraints that may arise in real-world scenarios: (1) lack of similar datasets/models from a related domain, (2) inability to sample…

Computation and Language · Computer Science 2022-05-19 Kevin Yang , Olivia Deng , Charles Chen , Richard Shin , Subhro Roy , Benjamin Van Durme

In this paper, we present an approach to incorporate retrieved datapoints as supporting evidence for context-dependent semantic parsing, such as generating source code conditioned on the class environment. Our approach naturally combines a…

Computation and Language · Computer Science 2019-06-18 Daya Guo , Duyu Tang , Nan Duan , Ming Zhou , Jian Yin

Task-oriented semantic parsing is a critical component of virtual assistants, which is responsible for understanding the user's intents (set reminder, play music, etc.). Recent advances in deep learning have enabled several approaches to…

Computation and Language · Computer Science 2020-10-08 Xilun Chen , Asish Ghoshal , Yashar Mehdad , Luke Zettlemoyer , Sonal Gupta

In this paper, we define and study a new task called Context-Aware Semantic Expansion (CASE). Given a seed term in a sentential context, we aim to suggest other terms that well fit the context as the seed. CASE has many interesting…

Computation and Language · Computer Science 2020-01-01 Jialong Han , Aixin Sun , Haisong Zhang , Chenliang Li , Shuming Shi

Scarce data is a major challenge to scaling robot learning to truly complex tasks, as we need to generalize locally learned policies over different task contexts. Contextual policy search offers data-efficient learning and generalization by…

Machine Learning · Computer Science 2019-04-29 Robert Pinsler , Peter Karkus , Andras Kupcsik , David Hsu , Wee Sun Lee

We propose a novel method for translation selection in statistical machine translation, in which a convolutional neural network is employed to judge the similarity between a phrase pair in two languages. The specifically designed…

Computation and Language · Computer Science 2015-06-25 Zhaopeng Tu , Baotian Hu , Zhengdong Lu , Hang Li

In this paper, we propose a generalizable method that systematically combines data driven MCMC samplingand inference using rule-based context knowledge for data abstraction. In particular, we demonstrate the usefulness of our method in the…

Computer Vision and Pattern Recognition · Computer Science 2020-02-26 Ziyuan Liu , Georg von Wichert

Recent advances in semantic image segmentation have mostly been achieved by training deep convolutional neural networks (CNNs). We show how to improve semantic segmentation through the use of contextual information; specifically, we explore…

Computer Vision and Pattern Recognition · Computer Science 2016-06-07 Guosheng Lin , Chunhua Shen , Anton van dan Hengel , Ian Reid

Open-domain question answering can be formulated as a phrase retrieval problem, in which we can expect huge scalability and speed benefit but often suffer from low accuracy due to the limitation of existing phrase representation models. In…

Computation and Language · Computer Science 2020-05-04 Jinhyuk Lee , Minjoon Seo , Hannaneh Hajishirzi , Jaewoo Kang

Robot social navigation needs to adapt to different human factors and environmental contexts. However, since these factors and contexts are difficult to predict and cannot be exhaustively enumerated, traditional learning-based methods have…

Robotics · Computer Science 2025-03-17 Iaroslav Okunevich , Alexandre Lombard , Tomas Krajnik , Yassine Ruichek , Zhi Yan

With the tremendous growth in the number of scientific papers being published, searching for references while writing a scientific paper is a time-consuming process. A technique that could add a reference citation at the appropriate place…

Computation and Language · Computer Science 2019-03-18 Chanwoo Jeong , Sion Jang , Hyuna Shin , Eunjeong Park , Sungchul Choi

Document-level neural machine translation has yielded attractive improvements. However, majority of existing methods roughly use all context sentences in a fixed scope. They neglect the fact that different source sentences need different…

Computation and Language · Computer Science 2020-10-12 Xiaomian Kang , Yang Zhao , Jiajun Zhang , Chengqing Zong

Sentence order prediction is the task of finding the correct order of sentences in a randomly ordered document. Correctly ordering the sentences requires an understanding of coherence with respect to the chronological sequence of events…

Computation and Language · Computer Science 2021-09-07 Deepanway Ghosal , Navonil Majumder , Rada Mihalcea , Soujanya Poria