Publications (36)
Reference Network for Neural Machine Translation
Han Fu, Chenghao Liu, Jianling Sun
Neural Machine Translation (NMT) has achieved notable success in recent years. Such a framework usually generates translations in isolation. In contrast, human translators often re…
PhantomRun: Auto Repair of Compilation Errors in Embedded Open Source Software
Han Fu, Andreas Ermedahl, Sigrid Eldh +3
Continuous Integration (CI) pipelines for embedded software sometimes fail during compilation, consuming significant developer time for debugging. We study four major open-source e…
Gate tunable enhancement of supercurrent in hybrid planar Josephson junctions
Peng Yu, Han Fu, William F. Schiela +6
Planar Josephson junctions (JJs) have emerged as a promising platform for the realization of topological superconductivity and Majorana zero modes. To obtain robust quasi one-dimen…
Jet Sub-structure in Fireworks Emission from Non-uniform and Rotating Bose-Einstein Condensates
Han Fu, Zhendong Zhang, Kai-Xuan Yao +5
We show that jet emission from a Bose condensate with periodically driven interactions, a.k.a. "Bose fireworks", contains essential information on the condensate wavefunction, whic…
Anomalous conductivity, Hall factor, magnetoresistance, and thermopower of accumulation layer in
Han Fu, K. V. Reich, B. I. Shklovskii
We study the low temperature conductivity of the electron accumulation layer induced by the very strong electric field at the surface of sample. Due to the strongl…
Electron gas induced in SrTiO
Han Fu, K. V. Reich, B. I. Shklovskii
This mini-review is dedicated to the 85th birthday of Prof. L. V. Keldysh, from whom we have learned so much. In this paper we study the potential and electron density depth profil…
A Machine Learning Framework for Data Ingestion in Document Images
Han Fu, Yunyu Bai, Zhuo Li +2
Paper documents are widely used as an irreplaceable channel of information in many fields, especially in financial industry, fostering a great amount of demand for systems which ca…
Mathematical modelling to inform outbreak response vaccination
Manjari Shankar, Anna-Maria Hartner, Callum R. K. Arnold +11
Mathematical models are established tools to assist in outbreak response. They help characterise complex patterns in disease spread, simulate control options to assist public healt…
In industrial embedded software, are some compilation errors easier to localize and fix than others?
Han Fu, Sigrid Eldh, Kristian Wiklund +3
Industrial embedded systems often require specialized hardware. However, software engineers have access to such domain-specific hardware only at the continuous integration (CI) sta…
Calibration of Time-Series Forecasting: Detecting and Adapting Context-Driven Distribution Shift
Mouxiang Chen, Lefei Shen, Han Fu +3
Recent years have witnessed the success of introducing deep learning models to time series forecasting. From a data generation perspective, we illustrate that existing models are s…
Enhanced superconducting diode effect in hybrid Josephson junctions
Peng Yu, Han Fu, William F. Schiela +7
The superconducting diode effect (SDE) has recently been observed in various systems, sparking interest in novel superconducting devices and offering a new platform to probe intrin…
Hopping conductivity and insulator-metal transition in films of touching semiconductor nanocrystals
Han Fu, K. V. Reich, B. I. Shklovskii
This paper is focused on the the variable-range hopping of electrons in semiconductor nanocrystal (NC) films below the critical doping concentration at which it becomes metal…
A Software-Repair Robot based on Continual Learning
Benoit Baudry, Zimin Chen, Khashayar Etemadi +8
Software bugs are common and correcting them accounts for a significant part of costs in the software development and maintenance process. This calls for automatic techniques to de…
Auto-repair without test cases: How LLMs fix compilation errors in large industrial embedded code
Han Fu, Sigrid Eldh, Kristian Wiklund +3
The co-development of hardware and software in industrial embedded systems frequently leads to compilation errors during continuous integration (CI). Automated repair of such failu…
Surface roughness scattering in multisubband accumulation layers
Han Fu, K. V. Reich, B. I. Shklovskii
Accumulation layers with very large concentrations of electrons where many subbands are filled became recently available due to ionic liquid and other new methods of gating. The lo…
PEMT: Multi-Task Correlation Guided Mixture-of-Experts Enables Parameter-Efficient Transfer Learning
Zhisheng Lin, Han Fu, Chenghao Liu +2
Parameter-efficient fine-tuning (PEFT) has emerged as an effective method for adapting pre-trained language models to various tasks efficiently. Recently, there has been a growing…
Roughness scattering induced insulator-metal-insulator transition in a quantum wire
Han Fu, M. Sammon, B. I. Shklovskii
We have theoretically investigated the influence of interface roughness scattering on the low temperature mobility of electrons in quantum wires when electrons fill one or many sub…
TSFMAudit: Data Contamination Auditing in Forecasting Time Series Foundation Models
Hongkai Li, Shifeng Xie, Lefei Shen +7
Time series foundation models (TSFMs) are increasingly pretrained on large corpora, raising concerns that evaluation datasets may have been exposed during pretraining and thus yiel…
Correlation effects in the capacitance of a gated carbon nanotube
Han Fu, B. I. Shklovskii, Brian Skinner
For a capacitor made of a semiconducting carbon nanotube (CNT) suspended above a metallic gate, Coulomb correlations between individual electrons can lead to a capacitance that is…
Quench induced collective excitations: from breathing to acoustic modes
Shicong Song, Ke Wang, Zhengli Wu +3
In trapped Bose-Einstein condensates, interaction quenches which are abrupt changes of the interaction strength typically implemented via Feshbach tuning, are a practical and widel…
MCEN: Bridging Cross-Modal Gap between Cooking Recipes and Dish Images with Latent Variable Model
Han Fu, Rui Wu, Chenghao Liu +1
Nowadays, driven by the increasing concern on diet and health, food computing has attracted enormous attention from both industry and research community. One of the most popular re…
Anomalous Thermodynamic Properties of Electron Accumulation Layer in SrTiO
Michael Sammon, Han Fu, B. I. Shklovskii
Due to the nonlinear dielectric response within SrTiO (STO), an accumulation layer created by positive charges at the surface of the STO sample () has an electron densit…
Where did we fail? -- Reproducing build failures in embedded open source software
Han Fu, Andreas Ermedahl, Sigrid Eldh +3
Due to hardware-software co-development in embedded systems, continuous integration (CI) builds frequently fail because of complex cross-compilation, board configurations, and tool…
The Power of Architecture: Deep Dive into Transformer Architectures for Long-Term Time Series Forecasting
Lefei Shen, Mouxiang Chen, Han Fu +5
Transformer-based models have recently become dominant in Long-term Time Series Forecasting (LTSF), yet the variations in their architecture, such as encoder-only, encoder-decoder,…
Metal-insulator transition in films of doped semiconductor nanocrystals
Ting Chen, K. V. Reich, Nicolaas J. Kramer +3
To fully deploy the potential of semiconductor nanocrystal films as low-cost electronic materials, a better understanding of the amount of dopants required to make their conductivi…
Band-Gap-Dependent Electronic Compressibility of Carbon Nanotubes in the Wigner Crystal Regime
Neda Lotfizadeh, Daniel R. McCulley, Mitchell J. Senger +4
Electronic compressibility, the second derivative of ground state energy with respect to total electron number, is a measurable quantity that reveals the interaction strength of a…
Gemini 2.5: Pushing the Frontier with Advanced Reasoning, Multimodality, Long Context, and Next Generation Agentic Capabilities
Gheorghe Comanici, Eric Bieber, Mike Schaekermann +3431
In this report, we introduce the Gemini 2.X model family: Gemini 2.5 Pro and Gemini 2.5 Flash, as well as our earlier Gemini 2.0 Flash and Flash-Lite models. Gemini 2.5 Pro is our…
Density waves and jet emission asymmetry in Bose Fireworks
Han Fu, Lei Feng, Brandon M. Anderson +5
A Bose condensate subject to a periodic modulation of the two-body interactions was recently observed to emit matter-wave jets resembling "fireworks" [Nature 551, 356(2017)]. In th…
Collapse of electrons to a donor cluster in SrTiO
Han Fu, K. V. Reich, B. I. Shklovskii
It is known that a nucleus with charge where creates electron-positron pairs from the vacuum. These electrons collapse onto the nucleus resulting in a net charge $Z_n<…
Dynamical preparation of an atomic condensate in a Hofstadter band
Han Fu, Andreas Glatz, F. Setiawan +4
The creation of a Hamiltonian in the quantum regime which has non-trivial topological features is a central goal of the cold-atom community, enabling widespread exploration of nove…
CloudCons: A Comprehensive End-to-End Benchmark for Cloud Resource Consolidation
Xiaobin Zhang, Lefei Shen, Mouxiang Chen +6
Driven by conservative over-provisioning to guarantee service reliability, resource utilization in cloud data centers remains at low levels. To mitigate this, the forecast-then-opt…
Simulating Cosmological Evolution by Quantum Quench of an Atomic BEC
Ke Wang, Han Fu, K. Levin
In cosmological evolution, it is the homogeneous scalar field (inflaton) that drives the universe to expand isotropically and to generate standard model particles. However, to simu…
Electron Accumulation Layer in Ultrastrong Magnetic Field
M. Sammon, Han Fu, B. I. Shklovskii
When a three-dimensional electron gas is subjected to a very strong magnetic field, it can reach a quasi-one-dimensional state in which all electrons occupy the lowest Landau level…
Delta-Adapter: Scalable Exemplar-Based Image Editing with Single-Pair Supervision
Jiacheng Chen, Songze Li, Han Fu +5
Exemplar-based image editing applies a transformation defined by a source-target image pair to a new query image. Existing methods rely on a pair-of-pairs supervision paradigm, req…
Parmsurv: a SAS Macro for Flexible Parametric Survival Analysis with Long-Term Predictions
Han Fu, Shahrul Mt-Isa, Richard Baumgartner +1
Health economic evaluations often require predictions of survival rates beyond the follow-up period. Parametric survival models can be more convenient for economic modelling than t…
VisionTS++: Cross-Modal Time Series Foundation Model with Continual Pre-trained Vision Backbones
Lefei Shen, Mouxiang Chen, Xu Liu +5
Recent studies have indicated that vision models pre-trained on images can serve as time series foundation models (TSFMs) by reformulating time series forecasting (TSF) as image re…