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Graph generation generally aims to create new graphs that closely align with a specific graph distribution. Existing works often implicitly capture this distribution through the optimization of generators, potentially overlooking the…

Machine Learning · Computer Science 2024-07-19 Song Wang , Zhen Tan , Xinyu Zhao , Tianlong Chen , Huan Liu , Jundong Li

The analytical description of charts is an exciting and important research area with many applications in academia and industry. Yet, this challenging task has received limited attention from the computational linguistics research…

Computation and Language · Computer Science 2021-08-18 Jiawen Zhu , Jinye Ran , Roy Ka-wei Lee , Kenny Choo , Zhi Li

In today's digital age in the dawning era of big data analytics it is not the information but the linking of information through entities and actions which defines the discourse. Any textual data either available on the Internet off…

Verifying the veracity of claims requires reasoning over a large knowledge base, often in the form of corpora of trustworthy sources. A common approach consists in retrieving short portions of relevant text from the reference documents and…

Information Retrieval · Computer Science 2021-09-14 Misael Mongiovì , Aldo Gangemi

Automated generation of high-quality topical hierarchies for a text collection is a dream problem in knowledge engineering with many valuable applications. In this paper a scalable and robust algorithm is proposed for constructing a…

Machine Learning · Computer Science 2014-03-17 Chi Wang , Xueqing Liu , Yanglei Song , Jiawei Han

Existing graph- and hypergraph-based algorithms for document summarization represent the sentences of a corpus as the nodes of a graph or a hypergraph in which the edges represent relationships of lexical similarities between sentences.…

Computation and Language · Computer Science 2019-04-17 Hadrien Van Lierde , Tommy W. S. Chow

Topic taxonomies, which represent the latent topic (or category) structure of document collections, provide valuable knowledge of contents in many applications such as web search and information filtering. Recently, several unsupervised…

Artificial Intelligence · Computer Science 2022-01-21 Dongha Lee , Jiaming Shen , SeongKu Kang , Susik Yoon , Jiawei Han , Hwanjo Yu

We propose a novel image representation, termed Attribute-Graph, to rank images by their semantic similarity to a given query image. An Attribute-Graph is an undirected fully connected graph, incorporating both local and global image…

Computer Vision and Pattern Recognition · Computer Science 2015-10-09 Nikita Prabhu , R. Venkatesh Babu

In document classification, graph-based models effectively capture document structure, overcoming sequence length limitations and enhancing contextual understanding. However, most existing graph document representations rely on heuristics,…

Computation and Language · Computer Science 2025-08-05 Margarita Bugueño , Gerard de Melo

We present a structural clustering algorithm for large-scale datasets of small labeled graphs, utilizing a frequent subgraph sampling strategy. A set of representatives provides an intuitive description of each cluster, supports the…

Databases · Computer Science 2016-10-03 Till Schäfer , Petra Mutzel

Automatic Text Summarization strategies have been successfully employed to digest text collections and extract its essential content. Usually, summaries are generated using textual corpora that belongs to the same domain area where the…

Computation and Language · Computer Science 2018-07-03 Vinicius Woloszyn , Guilherme Medeiros Machado , Leandro Krug Wives , José Palazzo Moreira de Oliveira

In this paper, we propose a graph-based image-to-image translation framework for generating images. We use rich data collected from the popular creativity platform Artbreeder (http://artbreeder.com), where users interpolate multiple…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Dilara Gokay , Enis Simsar , Efehan Atici , Alper Ahmetoglu , Atif Emre Yuksel , Pinar Yanardag

Leveraging generative Artificial Intelligence (AI), we have transformed a dataset comprising 1,000 scientific papers into an ontological knowledge graph. Through an in-depth structural analysis, we have calculated node degrees, identified…

Machine Learning · Computer Science 2024-06-12 Markus J. Buehler

We study the problem of automatically building hypernym taxonomies from textual and visual data. Previous works in taxonomy induction generally ignore the increasingly prominent visual data, which encode important perceptual semantics.…

Computation and Language · Computer Science 2016-06-30 Hao Zhang , Zhiting Hu , Yuntian Deng , Mrinmaya Sachan , Zhicheng Yan , Eric P. Xing

We present a novel method for mapping unrestricted text to knowledge graph entities by framing the task as a sequence-to-sequence problem. Specifically, given the encoded state of an input text, our decoder directly predicts paths in the…

Computation and Language · Computer Science 2019-04-08 Victor Prokhorov , Mohammad Taher Pilehvar , Nigel Collier

Over the last few years, machine learning over graph structures has manifested a significant enhancement in text mining applications such as event detection, opinion mining, and news recommendation. One of the primary challenges in this…

Computation and Language · Computer Science 2019-11-26 Kayvan Bijari , Hadi Zare , Emad Kebriaei , Hadi Veisi

Topic modelling is a popular unsupervised method for identifying the underlying themes in document collections that has many applications in information retrieval. A topic is usually represented by a list of terms ranked by their…

Information Retrieval · Computer Science 2020-06-02 Areej Alokaili , Nikolaos Aletras , Mark Stevenson

A new method of hierarchical clustering of graph vertexes is suggested. In the method, the graph partition is determined with an equivalence relation satisfying a recursive definition stating that vertexes are equivalent if the vertexes…

Data Structures and Algorithms · Computer Science 2007-05-23 Grigorii Pivovarov , Sergei Trunov

Text classification is fundamental in natural language processing (NLP), and Graph Neural Networks (GNN) are recently applied in this task. However, the existing graph-based works can neither capture the contextual word relationships within…

Computation and Language · Computer Science 2020-05-13 Yufeng Zhang , Xueli Yu , Zeyu Cui , Shu Wu , Zhongzhen Wen , Liang Wang

HITS adapted algorithm for synonym search, the program architecture, and the program work evaluation with test examples are presented in the paper. Synarcher program for synonym (and related terms) search in the text corpus of special…

Information Retrieval · Computer Science 2007-05-23 A. Krizhanovsky