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With the advent of end-to-end deep learning approaches in machine translation, interest in word alignments initially decreased; however, they have again become a focus of research more recently. Alignments are useful for typological…

Computation and Language · Computer Science 2021-09-15 Ayyoob Imani , Masoud Jalili Sabet , Lütfi Kerem Şenel , Philipp Dufter , François Yvon , Hinrich Schütze

Fraud detection aims to discover fraudsters deceiving other users by, for example, leaving fake reviews or making abnormal transactions. Graph-based fraud detection methods consider this task as a classification problem with two classes:…

Machine Learning · Computer Science 2024-01-04 Heehyeon Kim , Jinhyeok Choi , Joyce Jiyoung Whang

Graph Neural Networks (GNNs) are routinely used in molecular physics, social sciences, and economics to model many-body interactions in graph-like systems. However, GNNs are inherently local and can suffer from information flow bottlenecks.…

Computational Physics · Physics 2025-02-21 Alessandro Caruso , Jacopo Venturin , Lorenzo Giambagli , Edoardo Rolando , Frank Noé , Cecilia Clementi

Machine comprehension (MC), answering a query about a given context paragraph, requires modeling complex interactions between the context and the query. Recently, attention mechanisms have been successfully extended to MC. Typically these…

Computation and Language · Computer Science 2018-06-22 Minjoon Seo , Aniruddha Kembhavi , Ali Farhadi , Hannaneh Hajishirzi

Retrieval-augmented generation (RAG) based on large language models often falters on narrative documents with inherent temporal structures. Standard unstructured RAG methods rely solely on embedding-similarity matching and lack any general…

Information Retrieval · Computer Science 2025-06-09 Ze Yu Zhang , Zitao Li , Yaliang Li , Bolin Ding , Bryan Kian Hsiang Low

The current success of Graph Neural Networks (GNNs) usually relies on loading the entire attributed graph for processing, which may not be satisfied with limited memory resources, especially when the attributed graph is large. This paper…

Machine Learning · Computer Science 2022-10-25 Junfu Wang , Yuanfang Guo , Liang Yang , Yunhong Wang

Graph Neural Networks (GNNs) have achieved tremendous success in graph representation learning. Unfortunately, current GNNs usually rely on loading the entire attributed graph into network for processing. This implicit assumption may not be…

Machine Learning · Computer Science 2022-02-15 Junfu Wang , Yunhong Wang , Zhen Yang , Liang Yang , Yuanfang Guo

Hybrid question answering (HybridQA) over the financial report contains both textual and tabular data, and requires the model to select the appropriate evidence for the numerical reasoning task. Existing methods based on encoder-decoder…

Computation and Language · Computer Science 2023-05-08 Yifan Wei , Fangyu Lei , Yuanzhe Zhang , Jun Zhao , Kang Liu

Student's academic performance prediction empowers educational technologies including academic trajectory and degree planning, course recommender systems, early warning and advising systems. Given a student's past data (such as grades in…

Machine Learning · Computer Science 2020-01-06 Qian Hu , Huzefa Rangwala

We present an effective graph neural network (GNN)-based knowledge graph embedding model, which we name WGE, to capture entity- and relation-focused graph structures. Given a knowledge graph, WGE builds a single undirected entity-focused…

Computation and Language · Computer Science 2023-03-14 Vinh Tong , Dai Quoc Nguyen , Dinh Phung , Dat Quoc Nguyen

Recent large vision-language models have achieved strong performance on short- and medium-length video understanding, yet they remain inadequate for ultra-long or even infinite video reasoning, where models must preserve coherent memory…

Artificial Intelligence · Computer Science 2026-05-08 Peizheng Yan , Yu Zhao , Liang Xie , Juntong Qi , Mingming Wang , Erwei Yin

Visual question answering (Visual QA) has attracted significant attention these years. While a variety of algorithms have been proposed, most of them are built upon different combinations of image and language features as well as…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Cheng Zhang , Wei-Lun Chao , Dong Xuan

Recent works on representation learning for Knowledge Graphs have moved beyond the problem of link prediction, to answering queries of an arbitrary structure. Existing methods are based on ad-hoc mechanisms that require training with a…

Artificial Intelligence · Computer Science 2020-06-25 Daniel Daza , Michael Cochez

Spatial reasoning in text plays a crucial role in various real-world applications. Existing approaches for spatial reasoning typically infer spatial relations from pure text, which overlooks the gap between natural language and symbolic…

Computation and Language · Computer Science 2024-03-11 Shuaiyi Li , Yang Deng , Wai Lam

The causal dependence in data is often characterized by Directed Acyclic Graphical (DAG) models, widely used in many areas. Causal discovery aims to recover the DAG structure using observational data. This paper focuses on causal discovery…

Machine Learning · Computer Science 2024-06-12 Boxin Zhao , Weishi Wang , Dingyuan Zhu , Ziqi Liu , Dong Wang , Zhiqiang Zhang , Jun Zhou , Mladen Kolar

Attention networks in multimodal learning provide an efficient way to utilize given visual information selectively. However, the computational cost to learn attention distributions for every pair of multimodal input channels is…

Computer Vision and Pattern Recognition · Computer Science 2018-10-22 Jin-Hwa Kim , Jaehyun Jun , Byoung-Tak Zhang

Recent progress in cross-lingual relation and event extraction use graph convolutional networks (GCNs) with universal dependency parses to learn language-agnostic sentence representations such that models trained on one language can be…

Computation and Language · Computer Science 2021-02-19 Wasi Uddin Ahmad , Nanyun Peng , Kai-Wei Chang

Scene graphs are nodes and edges consisting of objects and object-object relationships, respectively. Scene graph generation (SGG) aims to identify the objects and their relationships. We propose a bidirectional GRU (BiGRU) transformer…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Naina Dhingra , Florian Ritter , Andreas Kunz

Multi-hop reasoning over financial disclosures is often a retrieval problem before it becomes a reasoning or generation problem: relevant facts are dispersed across sections, filings, companies, and years, and LLMs often expend excessive…

Computational Finance · Quantitative Finance 2025-10-06 Abhinav Arun , Reetu Raj Harsh , Bhaskarjit Sarmah , Stefano Pasquali

Knowledge graph question answering (KGQA) presents significant challenges due to the structural and semantic variations across input graphs. Existing works rely on Large Language Model (LLM) agents for graph traversal and retrieval; an…

Computation and Language · Computer Science 2025-07-08 Costas Mavromatis , Soji Adeshina , Vassilis N. Ioannidis , Zhen Han , Qi Zhu , Ian Robinson , Bryan Thompson , Huzefa Rangwala , George Karypis