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Shivam Grover

dblp:306/0858 · DBLP profile ↗
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2ranked-venue papers
2as first author
2since 2021 · last 2024
—ORCID · unresolved

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 1 · 1 first-author · 1 since 2021Graphics, computer vision, multimedia, augmented reality and games · 1 · 1 first-author · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Artificial intelligence
1 paper
Representation and self-supervised learning · 50% Deep learning architectures and training · 50%

Topics — the 2 heaviest of 3, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Machine learning › Deep learning architectures and training
neural network layer design
0.812024
Segment, Shuffle, and Stitch: A Simple Layer for Improving Time-Series Representations · NeurIPS 2024
Machine learning › Representation and self-supervised learning › representation learning › sequence representation learning
time series representation learning
0.812024
Segment, Shuffle, and Stitch: A Simple Layer for Improving Time-Series Representations · NeurIPS 2024

Methods — techniques the papers use, named apart from their topics

transformer · 0.8segment shuffle stitch · 0.8CNN · 0.8
YearPublicationVenuePosition
2024 Segment, Shuffle, and Stitch: A Simple Layer for Improving Time-Series Representations
abstract
Existing approaches for learning representations of time-series keep the temporal arrangement of the time-steps intact with the presumption that the original order is the most optimal for learning. However, non-adjacent sections of real-world time-series may have strong dependencies. Accordingly, we raise the question: Is there an alternative arrangement for time-series which could enable more effective representation learning? To address this, we propose a simple plug-and-play neural network layer called Segment, Shuffle, and Stitch (S3) designed to improve representation learning in time-series models. S3 works by creating non-overlapping segments from the original sequence and shuffling them in a learned manner that is optimal for the task at hand. It then re-attaches the shuffled segments back together and performs a learned weighted sum with the original input to capture both the newly shuffled sequence along with the original sequence. S3 is modular and can be stacked to achieve different levels of granularity, and can be added to many forms of neural architectures including CNNs or Transformers with negligible computation overhead. Through extensive experiments on several datasets and state-of-the-art baselines, we show that incorporating S3 results in significant improvements for the tasks of time-series classification, forecasting, and anomaly detection, improving performance on certain datasets by up to 68\%. We also show that S3 makes the learning more stable with a smoother training loss curve and loss landscape compared to the original baseline. The code is available at https://github.com/shivam-grover/S3-TimeSeries.
Shivam Grover, Amin Jalali 0003, Ali Etemad
NeurIPS1
2024 Improving generalization for geometric variations in images for efficient deep learning
Shivam Grover, Kshitij Sidana, Vanita Jain, Rachna Jain, Anand Nayyar
Multim. Tools Appl.1