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Arber Zela

14 accepted papers

2026

Improving LLM-based Global Optimization with Search Space Partitioning

ICLR 2026poster

Large Language Models (LLMs) have recently emerged as effective surrogate models and candidate generators within global optimization frameworks for expensive blackbox functions. Despite promising results, LLM-based methods often struggle in high-dimensional search spaces or when lacking domain-speci…

Cited by 0SourcecodeScholar
2025

DeltaProduct: Improving State-Tracking in Linear RNNs via Householder Products

NeurIPS 2025poster

Linear Recurrent Neural Networks (linear RNNs) have emerged as competitive alternatives to Transformers for sequence modeling, offering efficient training and linear-time inference. However, existing architectures face a fundamental trade-off between expressivity and efficiency, dictated by the stru…

Cited by 0SourcecodeScholar
2025

Multi-objective Differentiable Neural Architecture Search

ICLR 2025poster

Pareto front profiling in multi-objective optimization (MOO), i.e., finding a diverse set of Pareto optimal solutions, is challenging, especially with expensive objectives that require training a neural network. Typically, in MOO for neural architecture search (NAS), we aim to balance performance an…

2025

Unlocking State-Tracking in Linear RNNs Through Negative Eigenvalues

ICLR 2025oral

Linear Recurrent Neural Networks (LRNNs) such as Mamba, RWKV, GLA, mLSTM, and DeltaNet have emerged as efficient alternatives to Transformers for long sequences. However, both Transformers and LRNNs struggle to perform state-tracking, which may impair performance in tasks such as code evaluation. In…

2024

HW-GPT-Bench: Hardware-Aware Architecture Benchmark for Language Models

NeurIPS 2024poster

The increasing size of language models necessitates a thorough analysis across multiple dimensions to assess trade-offs among crucial hardware metrics such as latency, energy consumption, GPU memory usage, and performance. Identifying optimal model configurations under specific hardware constraints…

Cited by 1SourcePDFScholar
2022

JAHS-Bench-201: A Foundation For Research On Joint Architecture And Hyperparameter Search

NeurIPS 2022accept

The past few years have seen the development of many benchmarks for Neural Architecture Search (NAS), fueling rapid progress in NAS research. However, recent work, which shows that good hyperparameter settings can be more important than using the best architecture, calls for a shift in focus towards…

Cited by 30SourcePDFScholar
2022

NAS-Bench-Suite-Zero: Accelerating Research on Zero Cost Proxies

NeurIPS 2022accept

Zero-cost proxies (ZC proxies) are a recent architecture performance prediction technique aiming to significantly speed up algorithms for neural architecture search (NAS). Recent work has shown that these techniques show great promise, but certain aspects, such as evaluating and exploiting their com…

2022

NAS-Bench-Suite: NAS Evaluation is (Now) Surprisingly Easy

ICLR 2022poster

The release of tabular benchmarks, such as NAS-Bench-101 and NAS-Bench-201, has significantly lowered the computational overhead for conducting scientific research in neural architecture search (NAS). Although they have been widely adopted and used to tune real-world NAS algorithms, these benchmarks…

2022

Surrogate NAS Benchmarks: Going Beyond the Limited Search Spaces of Tabular NAS Benchmarks

ICLR 2022poster

The most significant barrier to the advancement of Neural Architecture Search (NAS) is its demand for large computational resources, which hinders scientifically sound empirical evaluations of NAS methods. Tabular NAS benchmarks have alleviated this problem substantially, making it possible to prope…

2021

How Powerful are Performance Predictors in Neural Architecture Search?

NeurIPS 2021poster

Early methods in the rapidly developing field of neural architecture search (NAS) required fully training thousands of neural networks. To reduce this extreme computational cost, dozens of techniques have since been proposed to predict the final performance of neural architectures. Despite the succe…

2021

Neural Ensemble Search for Uncertainty Estimation and Dataset Shift

NeurIPS 2021poster

Ensembles of neural networks achieve superior performance compared to standalone networks in terms of accuracy, uncertainty calibration and robustness to dataset shift. Deep ensembles, a state-of-the-art method for uncertainty estimation, only ensemble random initializations of a fixed architecture.…

2020

NAS-Bench-1Shot1: Benchmarking and Dissecting One-shot Neural Architecture Search

ICLR 2020poster

One-shot neural architecture search (NAS) has played a crucial role in making NAS methods computationally feasible in practice. Nevertheless, there is still a lack of understanding on how these weight-sharing algorithms exactly work due to the many factors controlling the dynamics of the process. In…

Cited by 202SourcecodeScholar
2020

Understanding and Robustifying Differentiable Architecture Search

ICLR 2020talk

Differentiable Architecture Search (DARTS) has attracted a lot of attention due to its simplicity and small search costs achieved by a continuous relaxation and an approximation of the resulting bi-level optimization problem. However, DARTS does not work robustly for new problems: we identify a wid…

Cited by 464SourcecodeScholar
2019

AutoDispNet: Improving Disparity Estimation With AutoML

ICCV 2019poster

Much research work in computer vision is being spent on optimizing existing network architectures to obtain a few more percentage points on benchmarks. Recent AutoML approaches promise to relieve us from this effort. However, they are mainly designed for comparatively small-scale classification task…

Cited by 95PDFScholar