Publications

2023

1. 

   Unveiling Backbone Effects in CLIP: Exploring Representational Synergies and Variances

   Cristian Rodriguez-Opazo, Edison Marrese-Taylor, Ehsan Abbasnejad, Hamed Damirchi, Ignacio M. Jara, Felipe Bravo-Marquez, and Anton Hengel

   Dec 2023

   PDF

2. 

   Zero-shot Retrieval: Augmenting Pre-trained Models with Search Engines

   Hamed Damirchi, Cristian Rodriguez-Opazo, Ehsan Abbasnejad, Damien Teney, Javen Qinfeng Shi, Stephen Gould, and Anton Hengel

   Dec 2023

   Bib PDF

   @misc{damirchi2023zeroshot,
     title = {Zero-shot Retrieval: Augmenting Pre-trained Models with Search Engines},
     author = {Damirchi, Hamed and Rodriguez-Opazo, Cristian and Abbasnejad, Ehsan and Teney, Damien and Shi, Javen Qinfeng and Gould, Stephen and van den Hengel, Anton},
     year = {2023},
     month = dec,
     eprint = {2311.17949},
     archiveprefix = {arXiv},
     primaryclass = {cs.CV},
   }

3. 

   An Empirical Study of the Effect of Video Encoders on Temporal Video Grounding

   Ignacio M. Jara, Cristian Rodriguez-Opazo, Edison Marrese-Taylor, and Felipe Bravo-Marquez

   In Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV) Workshops, Oct 2023

   Bib PDF Code

   @inproceedings{De_la_Jara_2023_ICCV,
     author = {De la Jara, Ignacio M. and Rodriguez-Opazo, Cristian and Marrese-Taylor, Edison and Bravo-Marquez, Felipe},
     title = {An Empirical Study of the Effect of Video Encoders on Temporal Video Grounding},
     booktitle = {Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV) Workshops},
     month = oct,
     year = {2023},
     pages = {2850-2855},
   }

4. 

   MAVIS: Multi-Camera Augmented Visual-Inertial SLAM using SE2(3) Based Exact IMU Pre-integration

   Yifu Wang, Yonhon Ng, Inkyu Sa, Alvaro Parra, Cristian Rodriguez-Opazo, Tao Jun Lin, and Hongdong Li

   Nov 2023

   Bib PDF

   @misc{wang2023mavis,
     title = {MAVIS: Multi-Camera Augmented Visual-Inertial SLAM using SE2(3) Based Exact IMU Pre-integration},
     author = {Wang, Yifu and Ng, Yonhon and Sa, Inkyu and Parra, Alvaro and Rodriguez-Opazo, Cristian and Lin, Tao Jun and Li, Hongdong},
     year = {2023},
     month = nov,
     eprint = {2309.08142},
     archiveprefix = {arXiv},
     primaryclass = {cs.RO},
   }

5. 

   Aligning Step-by-Step Instructional Diagrams to Video Demonstrations

   Jiahao Zhang, Anoop Cherian, Yanbin Liu, Yizhak Ben-Shabat, Cristian Rodriguez-Opazo, and Stephen Gould

   In Conference on Computer Vision and Pattern Recognition (CVPR), Nov 2023

   Bib HTML PDF Code

   @inproceedings{Zhang2023Aligning,
     author = {Zhang, Jiahao and Cherian, Anoop and Liu, Yanbin and Ben-Shabat, Yizhak and Rodriguez-Opazo, Cristian and Gould, Stephen},
     title = {Aligning Step-by-Step Instructional Diagrams to Video Demonstrations},
     booktitle = {Conference on Computer Vision and Pattern Recognition (CVPR)},
     year = {2023},
     video = {https://www.youtube.com/watch?v=8iC5QyP8U6o}
   }

6. 

   Memory-efficient Temporal Moment Localization in Long Videos

   Cristian Rodriguez-Opazo, Edison Marrese-Taylor, Basura Fernando, Hiroya Takamura, and Qi Wu

   In Proceedings of the 17th Conference of the European Chapter of the Association for Computational Linguistics, May 2023

   Bib PDF

   @inproceedings{rodriguez-opazo-etal-2023-memory,
     title = {Memory-efficient Temporal Moment Localization in Long Videos},
     author = {Rodriguez-Opazo, Cristian and Marrese-Taylor, Edison and Fernando, Basura and Takamura, Hiroya and Wu, Qi},
     booktitle = {Proceedings of the 17th Conference of the European Chapter of the Association for Computational Linguistics},
     month = may,
     year = {2023},
     address = {Dubrovnik, Croatia},
     publisher = {Association for Computational Linguistics},
     url = {https://aclanthology.org/2023.eacl-main.140},
     pages = {1909--1924},
   }

2022

1. 

   LocFormer: Enabling Transformers to Perform Temporal Moment Localization on Long Untrimmed Videos With a Feature Sampling Approach

   Cristian Rodriguez-Opazo, Edison Marrese-Taylor, Basura Fernando, Hiroya Takamura, and Qi Wu

   In Arxiv, May 2022

   Bib PDF

   @inproceedings{crodriguez2022,
     title = {LocFormer: Enabling Transformers to Perform Temporal Moment Localization on Long Untrimmed Videos With a Feature Sampling Approach},
     author = {Rodriguez-Opazo, Cristian and Marrese-Taylor, Edison and Fernando, Basura and Takamura, Hiroya and Wu, Qi},
     booktitle = {Arxiv},
     year = {2022},
     keywords = {no-published},
   }

2021

1. 

   The IKEA ASM Dataset: Understanding People Assembling Furniture Through Actions, Objects and Pose

   Yizhak Ben-Shabat, Xin Yu, Fatemeh Saleh, Dylan Campbell, Cristian Rodriguez-Opazo, Hongdong Li, and Stephen Gould

   In Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision (WACV), Jan 2021

   Bib HTML PDF Code

   @inproceedings{Ben-Shabat_2021_WACV,
     author = {Ben-Shabat, Yizhak and Yu, Xin and Saleh, Fatemeh and Campbell, Dylan and Rodriguez-Opazo, Cristian and Li, Hongdong and Gould, Stephen},
     title = {The IKEA ASM Dataset: Understanding People Assembling Furniture Through Actions, Objects and Pose},
     booktitle = {Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision (WACV)},
     month = jan,
     year = {2021},
     pages = {847-859},
   }

2. 

   A Recurrent Vision-and-Language BERT for Navigation

   Yicong Hong, Qi Wu, Yuankai Qi, Cristian Rodriguez-Opazo, and Stephen Gould

   In Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), Jun 2021

   Bib PDF Code

   @inproceedings{Hong_2021_CVPR,
     author = {Hong, Yicong and Wu, Qi and Qi, Yuankai and Rodriguez-Opazo, Cristian and Gould, Stephen},
     title = {A Recurrent Vision-and-Language BERT for Navigation},
     booktitle = {Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},
     month = jun,
     year = {2021},
     pages = {1643-1653},
   }

3. 

   Image Retrieval on Real-Life Images With Pre-Trained Vision-and-Language Models

   Zheyuan Liu, Cristian Rodriguez-Opazo, Damien Teney, and Stephen Gould

   In Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV), Oct 2021

   Bib HTML PDF Code

   @inproceedings{Liu_2021_ICCV,
     author = {Liu, Zheyuan and Rodriguez-Opazo, Cristian and Teney, Damien and Gould, Stephen},
     title = {Image Retrieval on Real-Life Images With Pre-Trained Vision-and-Language Models},
     booktitle = {Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV)},
     month = oct,
     year = {2021},
     pages = {2125-2134},
   }

4. 

   DORi: Discovering object relationships for moment localization of a natural language query in a video

   Cristian Rodriguez-Opazo, Edison Marrese-Taylor, Basura Fernando, Hongdong Li, and Stephen Gould

   In Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision, Oct 2021

   Bib PDF Code

   @inproceedings{rodriguez2021dori,
     title = {DORi: Discovering object relationships for moment localization of a natural language query in a video},
     author = {Rodriguez-Opazo, Cristian and Marrese-Taylor, Edison and Fernando, Basura and Li, Hongdong and Gould, Stephen},
     booktitle = {Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision},
     pages = {1079--1088},
     year = {2021},
   }

2020

1. 

   Proposal-free temporal moment localization of a natural-language query in video using guided attention

   Cristian Rodriguez-Opazo, Edison Marrese-Taylor, Fatemeh Sadat Saleh, Hongdong Li, and Stephen Gould

   In Proceedings of the IEEE/CVF winter conference on applications of computer vision, Oct 2020

   Bib PDF

   @inproceedings{rodriguez2020proposal,
     title = {Proposal-free temporal moment localization of a natural-language query in video using guided attention},
     author = {Rodriguez-Opazo, Cristian and Marrese-Taylor, Edison and Saleh, Fatemeh Sadat and Li, Hongdong and Gould, Stephen},
     booktitle = {Proceedings of the IEEE/CVF winter conference on applications of computer vision},
     pages = {2464--2473},
     year = {2020},
     selected = true,
     osf = {https://github.com/crodriguezo/TMLGA},
   }

2. 

   Sub-Instruction Aware Vision-and-Language Navigation

   Yicong Hong*, Cristian Rodriguez-Opazo*, Qi Wu, and Stephen Gould

   In Conference on Empirical Methods in Natural Language Processing, Oct 2020

   Bib PDF Code

   @inproceedings{Hong2020SubInstructionAV,
     title = {Sub-Instruction Aware Vision-and-Language Navigation},
     author = {Hong*, Yicong and Rodriguez-Opazo*, Cristian and Wu, Qi and Gould, Stephen},
     booktitle = {Conference on Empirical Methods in Natural Language Processing},
     year = {2020},
     url = {https://api.semanticscholar.org/CorpusID:214803082},
   }

3. 

   Word-level Deep Sign Language Recognition from Video: A New Large-scale Dataset and Methods Comparison

   Dongxu Li, Cristian Rodriguez-Opazo, Xin Yu, and Hongdong Li

   In The IEEE Winter Conference on Applications of Computer Vision, Oct 2020

   Bib HTML PDF Code

   @inproceedings{li2020word,
     title = {Word-level Deep Sign Language Recognition from Video: A New Large-scale Dataset and Methods Comparison},
     author = {Li, Dongxu and Rodriguez-Opazo, Cristian and Yu, Xin and Li, Hongdong},
     booktitle = {The IEEE Winter Conference on Applications of Computer Vision},
     pages = {1459--1469},
     year = {2020},
   }

4. 

   A multi-modal approach for fine-grained opinion mining

   Edison Marrese-Taylor*, Cristian Rodriguez-Opazo*, Jorge A Balazs, Stephen Gould, and Yutaka Matsuo

   In Association for Computational Linguistics, In Second Grand-Challenge and Workshop on Multimodal Language (Challenge-HML), Oct 2020

   Bib PDF

   @inproceedings{marrese2020ACL,
     title = {A multi-modal approach for fine-grained opinion mining},
     author = {Marrese-Taylor*, Edison and Rodriguez-Opazo*, Cristian and Balazs, Jorge A and Gould, Stephen and Matsuo, Yutaka},
     booktitle = {Association for Computational Linguistics, In Second Grand-Challenge and Workshop on Multimodal Language (Challenge-HML)},
     year = {2020},
     keywords = {published},
   }

5. 

   Language and Visual Entity Relationship Graph for Agent Navigation

   Yicong Hong, Cristian Rodriguez-Opazo, Yuankai Qi, Qi Wu, and Stephen Gould

   In Advances in Neural Information Processing Systems, Oct 2020

   Bib Code

   @inproceedings{NEURIPS2020_56dc0997,
     author = {Hong, Yicong and Rodriguez-Opazo, Cristian and Qi, Yuankai and Wu, Qi and Gould, Stephen},
     booktitle = {Advances in Neural Information Processing Systems},
     editor = {Larochelle, H. and Ranzato, M. and Hadsell, R. and Balcan, M.F. and Lin, H.},
     pages = {7685--7696},
     publisher = {Curran Associates, Inc.},
     title = {Language and Visual Entity Relationship Graph for Agent Navigation},
     pdfs = {https://proceedings.neurips.cc/paper_files/paper/2020/file/56dc0997d871e9177069bb472574eb29-Paper.pdf},
     volume = {33},
     year = {2020},
   }

2018

1. 

   Action anticipation by predicting future dynamic images

   Cristian Rodriguez-Opazo, Basura Fernando, and Hongdong Li

   In Proceedings of the European Conference on Computer Vision (ECCV) Workshops, Oct 2018

   Bib PDF

   @inproceedings{rodriguez2018action,
     title = {Action anticipation by predicting future dynamic images},
     author = {Rodriguez-Opazo, Cristian and Fernando, Basura and Li, Hongdong},
     booktitle = {Proceedings of the European Conference on Computer Vision (ECCV) Workshops},
     pages = {0--0},
     year = {2018},
   }

2017

1. 

   Divide and conquer: Efficient density-based tracking of 3D sensors in Manhattan worlds

   Yi Zhou, Laurent Kneip, Cristian Rodriguez-Opazo, and Hongdong Li

   In Computer Vision–ACCV 2016: 13th Asian Conference on Computer Vision, Taipei, Taiwan, November 20-24, 2016, Revised Selected Papers, Part V 13, Oct 2017

   Bib PDF

   @inproceedings{zhou2017divide,
     title = {Divide and conquer: Efficient density-based tracking of 3D sensors in Manhattan worlds},
     author = {Zhou, Yi and Kneip, Laurent and Rodriguez-Opazo, Cristian and Li, Hongdong},
     booktitle = {Computer Vision--ACCV 2016: 13th Asian Conference on Computer Vision, Taipei, Taiwan, November 20-24, 2016, Revised Selected Papers, Part V 13},
     pages = {3--19},
     year = {2017},
     organization = {Springer},
   }

2016

1. 

   DOCODE 3.0 (DOcument COpy DEtector): A system for plagiarism detection by applying an information fusion process from multiple documental data sources

   Juan D Velásquez, Yerko Covacevich, Francisco Molina, Edison Marrese-Taylor, Cristian Rodriguez-Opazo, and Felipe Bravo-Marquez

   Information Fusion, Oct 2016

   Bib PDF

   @article{velasquez2016docode,
     title = {DOCODE 3.0 (DOcument COpy DEtector): A system for plagiarism detection by applying an information fusion process from multiple documental data sources},
     author = {Vel{\'a}squez, Juan D and Covacevich, Yerko and Molina, Francisco and Marrese-Taylor, Edison and Rodriguez-Opazo, Cristian and Bravo-Marquez, Felipe},
     journal = {Information Fusion},
     volume = {27},
     pages = {64--75},
     year = {2016},
     publisher = {Elsevier},
     keywords = {published},
   }

2013

1. 

   Web opinion mining and sentimental analysis

   Edison Marrese-Taylor, Cristian Rodriguez-Opazo, Juan D Velásquez, Goldina Ghosh, and Soumya Banerjee

   Oct 2013

   Bib HTML

   @book{taylor2013web,
     title = {Web opinion mining and sentimental analysis},
     author = {Marrese-Taylor, Edison and Rodriguez-Opazo, Cristian and Vel{\'a}squez, Juan D and Ghosh, Goldina and Banerjee, Soumya},
     booktitle = {Advanced techniques in web intelligence-2},
     pages = {105--126},
     year = {2013},
     publisher = {Springer},
     keywords = {published},
   }