Search Results for author: Dongfang Zhao

Found 17 papers, 2 papers with code

Nemesis: Noise-randomized Encryption with Modular Efficiency and Secure Integration in Machine Learning Systems

no code implementations18 Dec 2024 Dongfang Zhao

Machine learning (ML) systems that guarantee security and privacy often rely on Fully Homomorphic Encryption (FHE) as a cornerstone technique, enabling computations on encrypted data without exposing sensitive information.

Privacy Preserving

Ares: Approximate Representations via Efficient Sparsification -- A Stateless Approach through Polynomial Homomorphism

no code implementations14 Dec 2024 Dongfang Zhao

The increasing prevalence of high-dimensional data demands efficient and scalable compression methods to support modern applications.

Approximate Fiber Product: A Preliminary Algebraic-Geometric Perspective on Multimodal Embedding Alignment

no code implementations30 Nov 2024 Dongfang Zhao

Additionally, we propose a decomposition of the shared embedding space into orthogonal subspaces, \( Z = Z_s \oplus Z_I \oplus Z_T \), where \( Z_s \) captures shared semantics, and \( Z_I \), \( Z_T \) encode modality-specific features.

Image-text Retrieval Representation Learning +1

NexusIndex: Integrating Advanced Vector Indexing and Multi-Model Embeddings for Robust Fake News Detection

no code implementations23 Oct 2024 Solmaz Seyed Monir, Dongfang Zhao

The FAISSNexusIndex layer further optimizes this process, enabling real-time detection and enhancing the system's scalability and performance.

Fake News Detection

VecLSTM: Trajectory Data Processing and Management for Activity Recognition through LSTM Vectorization and Database Integration

no code implementations28 Sep 2024 Solmaz Seyed Monir, Dongfang Zhao

Activity recognition is a challenging task due to the large scale of trajectory data and the need for prompt and efficient processing.

Activity Recognition Management

VectorSearch: Enhancing Document Retrieval with Semantic Embeddings and Optimized Search

no code implementations25 Sep 2024 Solmaz Seyed Monir, Irene Lau, Shubing Yang, Dongfang Zhao

Traditional retrieval methods have been essential for assessing document similarity but struggle with capturing semantic nuances.

Retrieval

OPDR: Order-Preserving Dimension Reduction for Semantic Embedding of Multimodal Scientific Data

no code implementations15 Aug 2024 Chengyu Gong, Gefei Shen, Luanzheng Guo, Nathan Tallent, Dongfang Zhao

In order to develop such an OPDR method, our central hypothesis is that by analyzing the intrinsic relationship among key parameters during the dimension-reduction map, a quantitative function may be constructed to reveal the correlation between the target (lower) dimensionality and other variables.

Dimensionality Reduction

MUCM-Net: A Mamba Powered UCM-Net for Skin Lesion Segmentation

1 code implementation24 May 2024 Chunyu Yuan, Dongfang Zhao, Sos S. Agaian

To further aid early diagnosis, especially on mobile devices with limited computing power, we present MUCM-Net.

Computational Efficiency Lesion Segmentation +4

EnviroExam: Benchmarking Environmental Science Knowledge of Large Language Models

no code implementations18 May 2024 Yu Huang, Liang Guo, Wanqian Guo, Zhe Tao, Yang Lv, Zhihao Sun, Dongfang Zhao

In the field of environmental science, it is crucial to have robust evaluation metrics for large language models to ensure their efficacy and accuracy.

Benchmarking Specificity

Enhancing Data Provenance and Model Transparency in Federated Learning Systems - A Database Approach

no code implementations3 Mar 2024 Michael Gu, Ramasoumya Naraparaju, Dongfang Zhao

Our findings show that our system can greatly enhance data transparency in various FL environments by storing chained cryptographic hashes and client model snapshots in our proposed design for data decoupled FL.

Federated Learning

Smuche: Scalar-Multiplicative Caching in Homomorphic Encryption

no code implementations26 Dec 2023 Dongfang Zhao

A promising strategy to tackle this issue involves optimizing the performance of fully homomorphic encryption (HE).

Federated Learning

Comparative Evaluation of Data Decoupling Techniques for Federated Machine Learning with Database as a Service

no code implementations15 Mar 2023 Muhammad Jahanzeb Khan, Rui Hu, Mohammad Sadoghi, Dongfang Zhao

To evaluate this approach, the authors develop a framework called Data-Decoupling Federated Learning (DDFL) and compare it with state-of-the-art FL systems that tightly couple data management and computation.

Federated Learning Management

A SVD-based Dynamic Harmonic Phasor Estimator with Improved Suppression of Out-of-Band Interference

no code implementations16 Nov 2022 Dongfang Zhao, Shisong Li, Fuping Wang, Wei Zhao, Songling Huang, Qing Wang

The diffusion of nonlinear loads and power electronic devices in power systems deteriorates the signal environment and increases the difficulty of measuring harmonic phasors.

Nonparametric Topological Layers in Neural Networks

no code implementations27 Nov 2021 Dongfang Zhao

Various topological techniques and tools have been applied to neural networks in terms of network complexity, explainability, and performance.

BAASH: Enabling Blockchain-as-a-Service on High-Performance Computing Systems

no code implementations20 Jan 2020 Abdullah Al-Mamun, Dongfang Zhao

The state-of-the-art approach to manage blockchains is to process blocks of transactions in a shared-nothing environment.

Distributed, Parallel, and Cluster Computing

The Blockchain Game: Synthesis of Byzantine Systems and Nash Equilibria

no code implementations20 Dec 2019 Dongfang Zhao

This position paper presents a synthesis viewpoint of blockchains from two orthogonal perspectives: fault-tolerant distributed systems and game theory.

Position

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