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Sahand Sharifzadeh

7 accepted papers

2023

InstanceFormer: An Online Video Instance Segmentation Framework

AAAI 2023technical

Recent transformer-based offline video instance segmentation (VIS) approaches achieve encouraging results and significantly outperform online approaches. However, their reliance on the whole video and the immense computational complexity caused by full Spatio-temporal attention limit them in real-li…

2022

Flamingo: a Visual Language Model for Few-Shot Learning

NeurIPS 2022accept

Building models that can be rapidly adapted to novel tasks using only a handful of annotated examples is an open challenge for multimodal machine learning research. We introduce Flamingo, a family of Visual Language Models (VLM) with this ability. We propose key architectural innovations to: (i) bri…

Cited by 4376SourcePDFScholar
2022

Improving Scene Graph Classification by Exploiting Knowledge from Texts

AAAI 2022technical

Training scene graph classification models requires a large amount of annotated image data. Meanwhile, scene graphs represent relational knowledge that can be modeled with symbolic data from texts or knowledge graphs. While image annotation demands extensive labor, collecting textual descriptions of…

Cited by 21SourcePDFScholar
2022

PourNet: Robust Robotic Pouring Through Curriculum and Curiosity-based Reinforcement Learning

IROS 2022poster

Pouring liquids accurately into containers is one of the most challenging tasks for robots as they are unaware of the complex fluid dynamics and the behavior of liquids when pouring. Therefore, it is not possible to formulate a generic pouring policy for real-time applications. In this paper, we pro…

Cited by 10SourcecodeScholar
2022

Relationformer: A Unified Framework for Image-to-Graph Generation

ECCV 2022poster

"A comprehensive representation of an image requires understanding objects and their mutual relationship, especially in image-to-graph generation, e.g., road network extraction, blood-vessel network extraction, or scene graph generation. Traditionally, image-to-graph generation is addressed with a t…

2021

Classification by Attention: Scene Graph Classification with Prior Knowledge

AAAI 2021technical

A major challenge in scene graph classification is that the appearance of objects and relations can be significantly different from one image to another. Previous works have addressed this by relational reasoning over all objects in an image or incorporating prior knowledge into classification. Unli…