activity
20192026
most citedSynthesizing Mixed-type Electronic Health Records using Diffusion Models

5 citations · 10 across the 14 of their papers we have counts for

collaborators

16 papers

cs.LG2026

DuoMem: Towards Capable On-Device Memory Agents via Dual-Space Distillation

Peyman Hosseini, Ondrej Bohdal, Ahmed Alajrami +6

Large Language Model (LLM)-based agents can solve complex procedural tasks by interacting with environments over multiple turns, but this ability typically depends on large models,…

cs.LG2026

Diffusion Alignment Beyond KL: Variance Minimisation as Effective Policy Optimiser

Zijing Ou, Jacob Si, Junyi Zhu +4

Diffusion alignment adapts pretrained diffusion models to sample from reward-tilted distributions along the denoising trajectory. This process naturally admits a Sequential Monte C…

cs.CL2026

Clustering-driven Memory Compression for On-device Large Language Models

Ondrej Bohdal, Pramit Saha, Umberto Michieli +2

Large language models (LLMs) often rely on user-specific memories distilled from past interactions to enable personalized generation. A common practice is to concatenate these memo…

cs.LG2026

Data-driven Clustering and Merging of Adapters for On-device Large Language Models

Ondrej Bohdal, Taha Ceritli, Mete Ozay +4

On-device large language models commonly employ task-specific adapters (e.g., LoRAs) to deliver strong performance on downstream tasks. While storing all available adapters is impr…

cs.LG2025

MemLoRA: Distilling Expert Adapters for On-Device Memory Systems

Massimo Bini, Ondrej Bohdal, Umberto Michieli +3

Memory-augmented Large Language Models (LLMs) have demonstrated remarkable consistency during prolonged dialogues by storing relevant memories and incorporating them as context. Su…

cs.LG2025

CG-TTRL: Context-Guided Test-Time Reinforcement Learning for On-Device Large Language Models

Peyman Hosseini, Ondrej Bohdal, Taha Ceritli +4

Test-time Reinforcement Learning (TTRL) has shown promise in adapting foundation models for complex tasks at test-time, resulting in large performance improvements. TTRL leverages…

cs.LG2025

K-Merge: Online Continual Merging of Adapters for On-device Large Language Models

Donald Shenaj, Ondrej Bohdal, Taha Ceritli +3

On-device deployment of Large Language Models (LLMs) frequently leverages Low-Rank Adapters (LoRAs) to support diverse downstream tasks under tight resource constraints. To address…

cs.LG2025

HydraOpt: Navigating the Efficiency-Performance Trade-off of Adapter Merging

Taha Ceritli, Ondrej Bohdal, Mete Ozay +4

Large language models (LLMs) often leverage adapters, such as low-rank-based adapters, to achieve strong performance on downstream tasks. However, storing a separate adapter for ea…

cs.LG2025

Guided Model Merging for Hybrid Data Learning: Leveraging Centralized Data to Refine Decentralized Models

Junyi Zhu, Ruicong Yao, Taha Ceritli +6

Current network training paradigms primarily focus on either centralized or decentralized data regimes. However, in practice, data availability often exhibits a hybrid nature, wher…

cs.LG2024

Randomized Asymmetric Chain of LoRA: The First Meaningful Theoretical Framework for Low-Rank Adaptation

Grigory Malinovsky, Umberto Michieli, Hasan Abed Al Kader Hammoud +4

Fine-tuning has become a popular approach to adapting large foundational models to specific tasks. As the size of models and datasets grows, parameter-efficient fine-tuning techniq…

cs.LG2023★ 5 cited

Synthesizing Mixed-type Electronic Health Records using Diffusion Models

Taha Ceritli, Ghadeer O. Ghosheh, Vinod Kumar Chauhan +3

Electronic Health Records (EHRs) contain sensitive patient information, which presents privacy concerns when sharing such data. Synthetic data generation is a promising solution to…

cs.DB2022

AI Assistants: A Framework for Semi-Automated Data Wrangling

Tomas Petricek, Gerrit J. J. van den Burg, Alfredo Nazábal +3

Data wrangling tasks such as obtaining and linking data from various sources, transforming data formats, and correcting erroneous records, can constitute up to 80% of typical data…

cs.LG2022

Mixture of Input-Output Hidden Markov Models for Heterogeneous Disease Progression Modeling

Taha Ceritli, Andrew P. Creagh, David A. Clifton

A particular challenge for disease progression modeling is the heterogeneity of a disease and its manifestations in the patients. Existing approaches often assume the presence of a…

cs.LG2021

Identifying the Units of Measurement in Tabular Data

Taha Ceritli, Christopher K. I. Williams

We consider the problem of identifying the units of measurement in a data column that contains both numeric values and unit symbols in each row, e.g., "5.2 l", "7 pints". In this c…

cs.LG2021

ptype-cat: Inferring the Type and Values of Categorical Variables

Taha Ceritli, Christopher K. I. Williams

Type inference is the task of identifying the type of values in a data column and has been studied extensively in the literature. Most existing type inference methods support data…

cs.LG2019★ 5 cited

ptype: Probabilistic Type Inference

Taha Ceritli, Christopher K. I. Williams, James Geddes

Type inference refers to the task of inferring the data type of a given column of data. Current approaches often fail when data contains missing data and anomalies, which are found…