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  1. No Access

    Chapter and Conference Paper

    A Verified Algorithm for the Centrosymmetric Solution of Sylvester Matrix Equations

    We study the verification for a centrosymmetric solution of Sylvester matrix equations by the interval theory. Propose an algorithm which outputs an approximate centrosymmetric solution and its error bounds wi...

    Haifeng Sang, Ziyu Li, Ying Cui, Qingchun Li in Bio-Inspired Computing -- Theories and App… (2015)

  2. No Access

    Chapter and Conference Paper

    The Study on Dynamic Conditional Correlation-GARCH Model and its Application

    This paper studies the Dynamic Conditional Correlation-GARCH model with asymmetries in volatilities and applies the model to estimate the time-varying conditional correlations of stock market returns between G...

    Ziyu Li, Atsuyuki Naka in Bio-Inspired Computing -- Theories and Applications (2015)

  3. No Access

    Chapter and Conference Paper

    Fast Algorithms for Verifying Centrosymmetric Solutions of Sylvester Matrix Equations

    Based on floating point operations, we study the accuracy of numerically computed centrosymmetric solutions in Sylvester matrix equations. Propose a fast algorithm which outputs the lower bound and upper bound...

    Ziyu Li, Haifeng Sang, Ying Zhao in Bio-inspired Computing – Theories and Applications (2016)

  4. No Access

    Chapter and Conference Paper

    Verified Error Bounds for Symmetric Solutions of Operator Matrix Equations

    Based on the interval theory, the verification for symmetric solutions of operator matrix equations $$AX-XB-C=0, A\in \mathbb {R}^{m\times m},...

    Qingchun Li, Ziyu Li, Haifeng Sang in Bio-inspired Computing – Theories and Appl… (2016)

  5. No Access

    Chapter and Conference Paper

    Surgical Skill Assessment on In-Vivo Clinical Data via the Clearness of Operating Field

    Surgical skill assessment is important for surgery training and quality control. Prior works on this task largely focus on basic surgical tasks such as suturing and knot tying performed in simulation settings....

    Daochang Liu, Tingting Jiang, Yizhou Wang in Medical Image Computing and Computer Assis… (2019)

  6. No Access

    Chapter and Conference Paper

    A Robust Facial Landmark Detector with Mixed Loss

    Facial landmark detection is one of the most important tasks in face image and video analysis. Existing algorithms based on deep convolutional neural networks have achieved good performance in public benchmark...

    **an Zhang, **njie Tong, Ziyu Li in Intelligence Science and Big Data Engineer… (2019)

  7. No Access

    Chapter and Conference Paper

    Unsupervised Surgical Instrument Segmentation via Anchor Generation and Semantic Diffusion

    Surgical instrument segmentation is a key component in develo** context-aware operating rooms. Existing works on this task heavily rely on the supervision of a large amount of labeled data, which involve lab...

    Daochang Liu, Yuhui Wei, Tingting Jiang in Medical Image Computing and Computer Assis… (2020)

  8. Article

    Open Access

    Susceptible-infected-spreading-based network embedding in static and temporal networks

    Link prediction can be used to extract missing information, identify spurious interactions as well as forecast network evolution. Network embedding is a methodology to assign coordinates to nodes in a low-dime...

    **u-**u Zhan, Ziyu Li, Naoki Masuda, Petter Holme, Huijuan Wang in EPJ Data Science (2020)

  9. No Access

    Chapter and Conference Paper

    Macaroni: Crawling and Enriching Metadata from Public Model Zoos

    Machine learning (ML) researchers and practitioners are building repositories of pre-trained models, called model zoos. These model zoos contain metadata that detail various properties of the ML models and datase...

    Ziyu Li, Henk Kant, Rihan Hai, Asterios Katsifodimos, Alessandro Bozzon in Web Engineering (2023)

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    Chapter and Conference Paper

    Optimizing ML Inference Queries Under Constraints

    The proliferation of pre-trained ML models in public Web-based model zoos facilitates the engineering of ML pipelines to address complex inference queries over datasets and streams of unstructured content. Con...

    Ziyu Li, Mariette Schönfeld, Wenbo Sun, Marios Fragkoulis, Rihan Hai in Web Engineering (2023)