1 code implementation • 13 Oct 2023 • Hung Le, Hailin Chen, Amrita Saha, Akash Gokul, Doyen Sahoo, Shafiq Joty
We find that by naturally encouraging the LLM to reuse the previously developed and verified sub-modules, CodeChain can significantly boost both modularity as well as correctness of the generated solutions, achieving relative pass@1 improvements of 35% on APPS and 76% on CodeContests.
no code implementations • 8 Oct 2023 • Gerald Woo, Chenghao Liu, Akshat Kumar, Doyen Sahoo
Time series has been left behind in the era of pre-training and transfer learning.
1 code implementation • 20 Jun 2023 • Chenghao Liu, Wenzhuo Yang, Himanshu Mittal, Manpreet Singh, Doyen Sahoo, Steven C. H. Hoi
We introduce PyRCA, an open-source Python machine learning library of Root Cause Analysis (RCA) for Artificial Intelligence for IT Operations (AIOps).
no code implementations • 1 Jun 2023 • Fabian Latorre, Chenghao Liu, Doyen Sahoo, Steven C. H. Hoi
Dynamic Time Warping (DTW) has become the pragmatic choice for measuring distance between time series.
no code implementations • 10 Apr 2023 • Qian Cheng, Doyen Sahoo, Amrita Saha, Wenzhuo Yang, Chenghao Liu, Gerald Woo, Manpreet Singh, Silvio Saverese, Steven C. H. Hoi
There are a wide variety of problems to address, and multiple use-cases, where AI capabilities can be leveraged to enhance operational efficiency.
1 code implementation • 31 Jan 2023 • Qian Cheng, Amrita Saha, Wenzhuo Yang, Chenghao Liu, Doyen Sahoo, Steven Hoi
In order to enable users to perform multiple types of AI-based log analysis tasks in a uniform manner, we introduce LogAI (https://github. com/salesforce/logai), a one-stop open source library for log analytics and intelligence.
1 code implementation • 13 Jul 2022 • Gerald Woo, Chenghao Liu, Doyen Sahoo, Akshat Kumar, Steven Hoi
Deep learning has been actively applied to time series forecasting, leading to a deluge of new methods, belonging to the class of historical-value models.
1 code implementation • 23 Feb 2022 • Quang Pham, Chenghao Liu, Doyen Sahoo, Steven C. H. Hoi
The fast adaptation capability of deep neural networks in non-stationary environments is critical for online time series forecasting.
1 code implementation • ICLR 2022 • Gerald Woo, Chenghao Liu, Doyen Sahoo, Akshat Kumar, Steven Hoi
Motivated by the recent success of representation learning in computer vision and natural language processing, we argue that a more promising paradigm for time series forecasting, is to first learn disentangled feature representations, followed by a simple regression fine-tuning step -- we justify such a paradigm from a causal perspective.
1 code implementation • 3 Feb 2022 • Gerald Woo, Chenghao Liu, Doyen Sahoo, Akshat Kumar, Steven Hoi
Transformers have been actively studied for time-series forecasting in recent years.
1 code implementation • 20 Sep 2021 • Aadyot Bhatnagar, Paul Kassianik, Chenghao Liu, Tian Lan, Wenzhuo Yang, Rowan Cassius, Doyen Sahoo, Devansh Arpit, Sri Subramanian, Gerald Woo, Amrita Saha, Arun Kumar Jagota, Gokulakrishnan Gopalakrishnan, Manpreet Singh, K C Krithika, Sukumar Maddineni, Daeki Cho, Bo Zong, Yingbo Zhou, Caiming Xiong, Silvio Savarese, Steven Hoi, Huan Wang
We introduce Merlion, an open-source machine learning library for time series.
no code implementations • ICLR 2021 • Quang Pham, Chenghao Liu, Doyen Sahoo, Steven Hoi
Continual learning methods with fixed architectures rely on a single network to learn models that can perform well on all tasks.
no code implementations • 1 Jan 2021 • Chenghao Liu, Tao Lu, Doyen Sahoo, Yuan Fang, Kun Zhang, Steven Hoi
Meta-learning methods learn the meta-knowledge among various training tasks and aim to promote the learning of new tasks under the task similarity assumption.
no code implementations • ICLR 2021 • Wu Xiongwei, Doyen Sahoo, Steven Hoi
Despite achieving promising performance at par with anchor-based detectors, the existing anchor-free detectors such as FCOS or CenterNet predict objects based on standard Cartesian coordinates, which often yield poor quality keypoints.
1 code implementation • EMNLP 2020 • Hung Le, Doyen Sahoo, Nancy F. Chen, Steven C. H. Hoi
Video-grounded dialogues are very challenging due to (i) the complexity of videos which contain both spatial and temporal variations, and (ii) the complexity of user utterances which query different segments and/or different objects in videos over multiple dialogue turns.
1 code implementation • 30 Jul 2020 • Quang Pham, Doyen Sahoo, Chenghao Liu, Steven C. H. Hoi
Continual learning aims to learn continuously from a stream of tasks and data in an online-learning fashion, being capable of exploiting what was learned previously to improve current and future tasks while still being able to perform well on the previous tasks.
no code implementations • ECCV 2020 • Chenghao Liu, Zhihao Wang, Doyen Sahoo, Yuan Fang, Kun Zhang, Steven C. H. Hoi
Meta-learning methods have been extensively studied and applied in computer vision, especially for few-shot classification tasks.
1 code implementation • EMNLP 2020 • Hung Le, Doyen Sahoo, Chenghao Liu, Nancy F. Chen, Steven C. H. Hoi
Building an end-to-end conversational agent for multi-domain task-oriented dialogues has been an open challenge for two main reasons.
no code implementations • 9 Mar 2020 • Hao Wang, Doyen Sahoo, Chenghao Liu, Ke Shu, Palakorn Achananuparp, Ee-Peng Lim, Steven C. H. Hoi
Food retrieval is an important task to perform analysis of food-related information, where we are interested in retrieving relevant information about the queried food item such as ingredients, cooking instructions, etc.
Ranked #7 on
Cross-Modal Retrieval
on Recipe1M
no code implementations • 26 Sep 2019 • Doyen Sahoo, Wang Hao, Shu Ke, Wu Xiongwei, Hung Le, Palakorn Achananuparp, Ee-Peng Lim, Steven C. H. Hoi
FoodAI has made food logging convenient, aiding smart consumption and a healthy lifestyle.
no code implementations • 25 Sep 2019 • Xiongwei Wu, Doyen Sahoo, Steven C. H. Hoi
Specifically, Meta-RCNN learns an object detector in an episodic learning paradigm on the (meta) training data.
no code implementations • 25 Sep 2019 • Chenghao Liu, Tao Lu, Doyen Sahoo, Yuan Fang, Steven C.H. Hoi.
Meta-learning methods learn the meta-knowledge among various training tasks and aim to promote the learning of new tasks under the task similarity assumption.
1 code implementation • 10 Aug 2019 • Xiongwei Wu, Doyen Sahoo, Steven C. H. Hoi
Object detection is a fundamental visual recognition problem in computer vision and has been widely studied in the past decades.
1 code implementation • ACL 2019 • Hung Le, Doyen Sahoo, Nancy F. Chen, Steven C. H. Hoi
Developing Video-Grounded Dialogue Systems (VGDS), where a dialogue is conducted based on visual and audio aspects of a given video, is significantly more challenging than traditional image or text-grounded dialogue systems because (1) feature space of videos span across multiple picture frames, making it difficult to obtain semantic information; and (2) a dialogue agent must perceive and process information from different modalities (audio, video, caption, etc.)
Ranked #4 on
Response Generation
on SIMMC2.0
2 code implementations • CVPR 2019 • Hao Wang, Doyen Sahoo, Chenghao Liu, Ee-Peng Lim, Steven C. H. Hoi
Food computing is playing an increasingly important role in human daily life, and has found tremendous applications in guiding human behavior towards smart food consumption and healthy lifestyle.
Ranked #8 on
Cross-Modal Retrieval
on Recipe1M
no code implementations • ICLR 2019 • Doyen Sahoo, Hung Le, Chenghao Liu, Steven C. H. Hoi
Most existing work assumes that both training and test tasks are drawn from the same distribution, and a large amount of labeled data is available in the training tasks.
3 code implementations • 9 Feb 2018 • Hung Le, Quang Pham, Doyen Sahoo, Steven C. H. Hoi
This approach allows the model to capture several types of semantic information, which was not possible by the existing models.
no code implementations • 8 Feb 2018 • Steven C. H. Hoi, Doyen Sahoo, Jing Lu, Peilin Zhao
Online learning represents an important family of machine learning algorithms, in which a learner attempts to resolve an online prediction (or any type of decision-making) task by learning a model/hypothesis from a sequence of data instances one at a time.
4 code implementations • 10 Nov 2017 • Doyen Sahoo, Quang Pham, Jing Lu, Steven C. H. Hoi
Deep Neural Networks (DNNs) are typically trained by backpropagation in a batch learning setting, which requires the entire training data to be made available prior to the learning task.
1 code implementation • 25 Jan 2017 • Doyen Sahoo, Chenghao Liu, Steven C. H. Hoi
This article aims to provide a comprehensive survey and a structural understanding of Malicious URL Detection techniques using machine learning.
1 code implementation • 28 Oct 2016 • Yue Wu, Steven C. H. Hoi, Chenghao Liu, Jing Lu, Doyen Sahoo, Nenghai Yu
SOL is an open-source library for scalable online learning algorithms, and is particularly suitable for learning with high-dimensional data.
no code implementations • 16 Nov 2015 • Jing Lu, Steven C. H. Hoi, Doyen Sahoo, Peilin Zhao
To overcome this drawback, we present a novel framework of Budget Online Multiple Kernel Learning (BOMKL) and propose a new Sparse Passive Aggressive learning to perform effective budget online learning.