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Retrieval-augmented language models can better adapt to changes in world state and incorporate long-tail knowledge. However, most existing methods retrieve only short contiguous chunks from a retrieval corpus, limiting holistic…

Computation and Language · Computer Science 2024-02-01 Parth Sarthi , Salman Abdullah , Aditi Tuli , Shubh Khanna , Anna Goldie , Christopher D. Manning

Textual grounding is an important but challenging task for human-computer interaction, robotics and knowledge mining. Existing algorithms generally formulate the task as selection from a set of bounding box proposals obtained from deep net…

Computer Vision and Pattern Recognition · Computer Science 2018-04-02 Raymond A. Yeh , Jinjun Xiong , Wen-mei W. Hwu , Minh N. Do , Alexander G. Schwing

We consider the task of inferring is-a relationships from large text corpora. For this purpose, we propose a new method combining hyperbolic embeddings and Hearst patterns. This approach allows us to set appropriate constraints for…

Computation and Language · Computer Science 2019-02-05 Matt Le , Stephen Roller , Laetitia Papaxanthos , Douwe Kiela , Maximilian Nickel

Exploratory search aims to guide users through a corpus rather than pinpointing exact information. We propose an exploratory search system based on hierarchical clusters and document summaries using sentence embeddings. With sentence…

Computation and Language · Computer Science 2020-07-23 Austin Silveria

Assessing the degree of semantic relatedness between words is an important task with a variety of semantic applications, such as ontology learning for the Semantic Web, semantic search or query expansion. To accomplish this in an automated…

Computation and Language · Computer Science 2017-05-25 Thomas Niebler , Martin Becker , Christian Pölitz , Andreas Hotho

We propose a new problem called coordinated topic modeling that imitates human behavior while describing a text corpus. It considers a set of well-defined topics like the axes of a semantic space with a reference representation. It then…

Computation and Language · Computer Science 2022-10-25 Pritom Saha Akash , Jie Huang , Kevin Chen-Chuan Chang

Recently, knowledge graph embedding, which projects symbolic entities and relations into continuous vector space, has become a new, hot topic in artificial intelligence. This paper addresses a new issue of multiple relation semantics that a…

Computation and Language · Computer Science 2017-09-11 Han Xiao , Minlie Huang , Yu Hao , Xiaoyan Zhu

The task of completing knowledge triplets has broad downstream applications. Both structural and semantic information plays an important role in knowledge graph completion. Unlike previous approaches that rely on either the structures or…

Computation and Language · Computer Science 2022-09-20 Jianhao Shen , Chenguang Wang , Linyuan Gong , Dawn Song

Neural approaches to learning term embeddings have led to improved computation of similarity and ranking in information retrieval (IR). So far neural representation learning has not been extended to meta-textual information that is readily…

Information Retrieval · Computer Science 2021-02-03 Toshitaka Kuwa , Shigehiko Schamoni , Stefan Riezler

We present \textit{AutoExtend}, a system to learn embeddings for synsets and lexemes. It is flexible in that it can take any word embeddings as input and does not need an additional training corpus. The synset/lexeme embeddings obtained…

Computation and Language · Computer Science 2022-08-10 Sascha Rothe , Hinrich Schütze

Knowledge Graphs (KGs) provide a structured representation of knowledge but often suffer from challenges of incompleteness. To address this, link prediction or knowledge graph completion (KGC) aims to infer missing new facts based on…

Machine Learning · Computer Science 2025-01-03 Wenkai Tu , Guojia Wan , Zhengchun Shang , Bo Du

Business process modelers need to have expertise and knowledge of the domain that may not always be available to them. Therefore, they may benefit from tools that mine collections of existing processes and recommend element(s) to be added…

Software Engineering · Computer Science 2021-05-25 Maayan Goldstein , Cecilia Gonzalez-Alvarez

Embeddings of words and concepts capture syntactic and semantic regularities of language; however, they have seen limited use as tools to study characteristics of different corpora and how they relate to one another. We introduce…

Computation and Language · Computer Science 2021-03-23 Denis Newman-Griffis , Venkatesh Sivaraman , Adam Perer , Eric Fosler-Lussier , Harry Hochheiser

Identifying species in biology among tens of thousands of visually similar taxa while discovering unknown species in open-world environments remains a fundamental challenge in biodiversity research. Current methods treat identification and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Jiawei Wang , Ming Lei , Yaning Yang , Xinyan Lin , Yuquan Le , Qiwei Ma , Zhiwei Xu , Zheqi Lv , Yuchen Ang , Zhe Quan , Tat-Seng Chua

Retrieving all semantically relevant products from the product catalog is an important problem in E-commerce. Compared to web documents, product catalogs are more structured and sparse due to multi-instance fields that encode heterogeneous…

Information Retrieval · Computer Science 2020-08-20 Jason Ingyu Choi , Surya Kallumadi , Bhaskar Mitra , Eugene Agichtein , Faizan Javed

In the last decades, philosophers have begun using empirical data for conceptual analysis, but corpus-based conceptual analysis has so far failed to develop, in part because of the absence of reliable methods to automatically detect…

Computation and Language · Computer Science 2019-05-27 Louis Chartrand , Mohamed Bouguessa

Accurately reporting what objects are depicted in an image is largely a solved problem in automatic caption generation. The next big challenge on the way to truly humanlike captioning is being able to incorporate the context of the image…

Computation and Language · Computer Science 2022-10-11 Sofia Nikiforova , Tejaswini Deoskar , Denis Paperno , Yoad Winter

Constructing taxonomies from citation graphs is essential for organizing scientific knowledge, facilitating literature reviews, and identifying emerging research trends. However, manual taxonomy construction is labor-intensive,…

Computation and Language · Computer Science 2025-02-28 Yuntong Hu , Zhuofeng Li , Zheng Zhang , Chen Ling , Raasikh Kanjiani , Boxin Zhao , Liang Zhao

Adapting general-domain retrievers to scientific domains is challenging due to the scarcity of large-scale domain-specific relevance annotations and the substantial mismatch in vocabulary and information needs. Recent approaches address…

Information Retrieval · Computer Science 2026-01-05 Jeyun Lee , Junhyoung Lee , Wonbin Kweon , Bowen Jin , Yu Zhang , Susik Yoon , Dongha Lee , Hwanjo Yu , Jiawei Han , Seongku Kang

We propose CatVersion, an inversion-based method that learns the personalized concept through a handful of examples. Subsequently, users can utilize text prompts to generate images that embody the personalized concept, thereby achieving…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Ruoyu Zhao , Mingrui Zhu , Shiyin Dong , Nannan Wang , Xinbo Gao