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In Ontology Based Data Access (OBDA) users pose SPARQL queries over an ontology that lies on top of relational datasources. These queries are translated on-the-fly into SQL queries by OBDA systems. Standard SPARQL-to-SQL translation…

Databases · Computer Science 2016-05-17 Dag Hovland , Davide Lanti , Martin Rezk , Guohui Xiao

In machine learning, a question of great interest is understanding what examples are challenging for a model to classify. Identifying atypical examples ensures the safe deployment of models, isolates samples that require further human…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Chirag Agarwal , Daniel D'souza , Sara Hooker

In modern urban environments, camera networks generate massive amounts of operational footage -- reaching petabytes each day -- making scalable video analytics essential for efficient processing. Many existing approaches adopt an SQL-based…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Yanrui Yu , Tianfei Zhou , Jiaxin Sun , Lianpeng Qiao , Lizhong Ding , Ye Yuan , Guoren Wang

While Vision-Language-Action (VLA) models show strong promise for generalist robot control, it remains unclear whether -- and under what conditions -- the standard "scale data" recipe translates to robotics, where training data is…

Automated synthesis of inductive invariants is an important problem in software verification. Once all the invariants have been specified, software verification reduces to checking of verification conditions. Although static analyses to…

Machine Learning · Computer Science 2020-07-17 Sahil Bhatia , Saswat Padhi , Nagarajan Natarajan , Rahul Sharma , Prateek Jain

Today, data is being actively generated by a variety of devices, services, and applications. Such data is important not only for the information that it contains, but also for its relationships to other data and to interested users. Most…

Databases · Computer Science 2020-09-11 Xikui Wang , Michael J. Carey , Vassilis J. Tsotras

Software vulnerabilities (SVs) have emerged as a prevalent and critical concern for safety-critical security systems. This has spurred significant advancements in utilizing AI-based methods, including machine learning and deep learning, for…

Software Engineering · Computer Science 2025-10-07 Van Nguyen , Surya Nepal , Tingmin Wu , Xingliang Yuan , Carsten Rudolph

Modern large-scale recommendation systems rely heavily on user interaction history sequences to enhance the model performance. The advent of large language models and sequential modeling techniques, particularly transformer-like…

Information Retrieval · Computer Science 2026-03-27 Zhimin Chen , Chenyu Zhao , Ka Chun Mo , Yunjiang Jiang , Jane H. Lee , Khushhall Chandra Mahajan , Ning Jiang , Kai Ren , Jinhui Li , Wen-Yun Yang

Recently, vision-language models have made remarkable progress, demonstrating outstanding capabilities in various tasks such as image captioning and video understanding. We introduce Valley2, a novel multimodal large language model designed…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Ziheng Wu , Zhenghao Chen , Ruipu Luo , Can Zhang , Yuan Gao , Zhentao He , Xian Wang , Haoran Lin , Minghui Qiu

Small Vision-Language Models (VLMs) provide a computationally efficient alternative to larger models, at the cost of weaker generalization abilities and downstream task performance. These shortcomings could be addressed by test-time scaling…

Machine Learning · Computer Science 2026-02-17 Mehmet Onurcan Kaya , Desmond Elliott , Dim P. Papadopoulos

Visual Analytics (VA) tools and techniques have been instrumental in supporting users to build better classification models, interpret models' overall logic, and audit results. In a different direction, VA has recently been applied to…

Machine Learning · Computer Science 2022-11-21 Mário Popolin Neto , Fernando V. Paulovich

Classifier-free guidance (CFG) is the primary control over how strongly text semantics move a flow-based sampler, yet standard practice holds its scale fixed across the entire ODE trajectory. This is a fundamental mismatch: early steps are…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Yan Luo , Ahmadou Aidara , Jingyi Lu , Jeremy Moebel , Kai Han , Mengyu Wang

Synthetic data generation has become an increasingly popular way of training models without the need for large, manually labeled datasets. For tasks like text embedding, synthetic data offers diverse and scalable training examples,…

Computation and Language · Computer Science 2024-11-05 Haonan Chen , Liang Wang , Nan Yang , Yutao Zhu , Ziliang Zhao , Furu Wei , Zhicheng Dou

Data generation is a fundamental research problem in data management due to its diverse use cases, ranging from testing database engines to data-specific applications. However, real-world entities often involve complex interactions that…

Databases · Computer Science 2024-12-13 Fan Li , Xiaoyang Wang , Dawei Cheng , Cong Chen , Ying Zhang , Xuemin Lin

Large, data centric applications are characterized by its different attributes. In modern day, a huge majority of the large data centric applications are based on relational model. The databases are collection of tables and every table…

Information Retrieval · Computer Science 2012-06-28 Soumya Sen , Anjan Dutta , Agostino Cortesi , Nabendu Chaki

Predictive modeling from high-dimensional genomic data is often preceded by a dimension reduction step, such as principal components analysis (PCA). However, the application of PCA is not straightforward for multi-source data, wherein…

Quantitative Methods · Quantitative Biology 2017-07-19 Adam Kaplan , Eric F. Lock

Visual object tracking acts as a pivotal component in various emerging video applications. Despite the numerous developments in visual tracking, existing deep trackers are still likely to fail when tracking against objects with dramatic…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Qiuhong Shen , Xin Li , Fanyang Meng , Yongsheng Liang

Unsupervised Domain Adaptation (UDA) aims to mitigate performance degradation when training and testing data are sampled from different distributions. While significant progress has been made in enhancing overall accuracy, most existing…

Machine Learning · Computer Science 2026-01-27 Yuguang Zhang , Lijun Sheng , Jian Liang , Ran He

The enhanced representational power and broad applicability of deep learning models have attracted significant interest from the research community in recent years. However, these models often struggle to perform effectively under domain…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Ba Hung Ngo , Doanh C. Bui , Nhat-Tuong Do-Tran , Tae Jong Choi

Domain-specific languages (DSLs) for visualization aim to facilitate visualization creation by providing abstractions that offload implementation and execution details from users to the system layer. Therefore, DSLs often execute…

Human-Computer Interaction · Computer Science 2023-09-20 Junran Yang , Alex Bäuerle , Dominik Moritz , Çağatay Demiralp