collaborators

7 papers

cs.LG2025

C3PO: Optimized Large Language Model Cascades with Probabilistic Cost Constraints for Reasoning

Antonios Valkanas, Soumyasundar Pal, Pavel Rumiantsev +2

Large language models (LLMs) have achieved impressive results on complex reasoning tasks, but their high inference cost remains a major barrier to real-world deployment. A promisin…

cs.AI2025

Reasoning on a Budget: A Survey of Adaptive and Controllable Test-Time Compute in LLMs

Mohammad Ali Alomrani, Yingxue Zhang, Derek Li +14

Large language models (LLMs) have rapidly progressed into general-purpose agents capable of solving a broad spectrum of tasks. However, current models remain inefficient at reasoni…

cs.LG2025

SKOLR: Structured Koopman Operator Linear RNN for Time-Series Forecasting

Yitian Zhang, Liheng Ma, Antonios Valkanas +2

Koopman operator theory provides a framework for nonlinear dynamical system analysis and time-series forecasting by mapping dynamics to a space of real-valued measurement functions…

cs.LG2025

MODL: Multilearner Online Deep Learning

Antonios Valkanas, Boris N. Oreshkin, Mark Coates

Online deep learning tackles the challenge of learning from data streams by balancing two competing goals: fast learning and deep learning. However, existing research primarily emp…

cs.IR2025

Personalized Negative Reservoir for Incremental Learning in Recommender Systems

Antonios Valkanas, Yuening Wang, Yingxue Zhang +1

Recommender systems have become an integral part of online platforms. Every day the volume of training data is expanding and the number of user interactions is constantly increasin…

cs.CL2024

Dynamic layer selection in decoder-only transformers

Theodore Glavas, Joud Chataoui, Florence Regol +4

The vast size of Large Language Models (LLMs) has prompted a search to optimize inference. One effective approach is dynamic inference, which adapts the architecture to the sample-…