Search Results for author: Zhen Zeng

Found 20 papers, 5 papers with code

Evaluating Large Language Models on Time Series Feature Understanding: A Comprehensive Taxonomy and Benchmark

no code implementations25 Apr 2024 Elizabeth Fons, Rachneet Kaur, Soham Palande, Zhen Zeng, Svitlana Vyetrenko, Tucker Balch

Large Language Models (LLMs) offer the potential for automatic time series analysis and reporting, which is a critical task across many domains, spanning healthcare, finance, climate, energy, and many more.

FlowMind: Automatic Workflow Generation with LLMs

no code implementations17 Mar 2024 Zhen Zeng, William Watson, Nicole Cho, Saba Rahimi, Shayleen Reynolds, Tucker Balch, Manuela Veloso

FlowMind further simplifies user interaction by presenting high-level descriptions of auto-generated workflows, enabling users to inspect and provide feedback effectively.

Benchmarking Question Answering

Financial Time Series Forecasting using CNN and Transformer

no code implementations11 Apr 2023 Zhen Zeng, Rachneet Kaur, Suchetha Siddagangappa, Saba Rahimi, Tucker Balch, Manuela Veloso

In our experiments, we demonstrated the success of the proposed method in comparison to commonly adopted statistical and deep learning methods on forecasting intraday stock price change of S&P 500 constituents.

Decision Making Time Series +1

Self-supervised Graph Learning for Long-tailed Cognitive Diagnosis

no code implementations15 Oct 2022 Shanshan Wang, Zhen Zeng, Xun Yang, Xingyi Zhang

Cognitive diagnosis is a fundamental yet critical research task in the field of intelligent education, which aims to discover the proficiency level of different students on specific knowledge concepts.

cognitive diagnosis Graph Learning

TGAVC: Improving Autoencoder Voice Conversion with Text-Guided and Adversarial Training

no code implementations8 Aug 2022 Huaizhen Tang, xulong Zhang, Jianzong Wang, Ning Cheng, Zhen Zeng, Edward Xiao, Jing Xiao

In this paper, a novel voice conversion framework, named $\boldsymbol T$ext $\boldsymbol G$uided $\boldsymbol A$utoVC(TGAVC), is proposed to more effectively separate content and timbre from speech, where an expected content embedding produced based on the text transcriptions is designed to guide the extraction of voice content.

Voice Conversion

SeanNet: Semantic Understanding Network for Localization Under Object Dynamics

1 code implementation5 Oct 2021 Xiao Li, Yidong Du, Zhen Zeng, Odest Chadwicke Jenkins

This paper proposes a SEmantic understANding Network (SeanNet) architecture that enables an effective learning process with coupled visual and semantic inputs.

Contrastive Learning Object +1

Deep Video Prediction for Time Series Forecasting

no code implementations24 Feb 2021 Zhen Zeng, Tucker Balch, Manuela Veloso

In this paper, we propose to approach economic time series forecasting of multiple financial assets in a novel way via video prediction.

Decision Making Time Series +2

MelGlow: Efficient Waveform Generative Network Based on Location-Variable Convolution

3 code implementations3 Dec 2020 Zhen Zeng, Jianzong Wang, Ning Cheng, Jing Xiao

In this paper, an efficient network, named location-variable convolution, is proposed to model the dependencies of waveforms.

Visual Time Series Forecasting: An Image-driven Approach

no code implementations18 Nov 2020 Srijan Sood, Zhen Zeng, Naftali Cohen, Tucker Balch, Manuela Veloso

In this work, we leverage advances in deep learning to extend the field of time series forecasting to a visual setting.

Quantization Time Series +1

Prosody Learning Mechanism for Speech Synthesis System Without Text Length Limit

no code implementations13 Aug 2020 Zhen Zeng, Jianzong Wang, Ning Cheng, Jing Xiao

Recent neural speech synthesis systems have gradually focused on the control of prosody to improve the quality of synthesized speech, but they rarely consider the variability of prosody and the correlation between prosody and semantics together.

Language Modelling Position +2

Semantic Linking Maps for Active Visual Object Search

no code implementations18 Jun 2020 Zhen Zeng, Adrian Röfer, Odest Chadwicke Jenkins

SLiM simultaneously maintains the belief over a target object's location as well as landmark objects' locations, while accounting for probabilistic inter-object spatial relations.

Object

GraphTTS: graph-to-sequence modelling in neural text-to-speech

no code implementations4 Mar 2020 Aolan Sun, Jianzong Wang, Ning Cheng, Huayi Peng, Zhen Zeng, Jing Xiao

This paper leverages the graph-to-sequence method in neural text-to-speech (GraphTTS), which maps the graph embedding of the input sequence to spectrograms.

Graph Embedding Graph-to-Sequence +1

AlignTTS: Efficient Feed-Forward Text-to-Speech System without Explicit Alignment

2 code implementations4 Mar 2020 Zhen Zeng, Jianzong Wang, Ning Cheng, Tian Xia, Jing Xiao

Targeting at both high efficiency and performance, we propose AlignTTS to predict the mel-spectrum in parallel.

A Random Interaction Forest for Prioritizing Predictive Biomarkers

no code implementations4 Oct 2019 Zhen Zeng, Yuefeng Lu, Judong Shen, Wei Zheng, Peter Shaw, Mary Beth Dorr

Precision medicine is becoming a focus in medical research recently, as its implementation brings values to all stakeholders in the healthcare system.

Semantic Mapping with Simultaneous Object Detection and Localization

1 code implementation26 Oct 2018 Zhen Zeng, Yunwen Zhou, Odest Chadwicke Jenkins, Karthik Desingh

Our results demonstrate that the particle filtering based inference of CT-Map provides improved object detection and pose estimation with respect to baseline methods that treat observations as independent samples of a scene.

Robotics

Object Manipulation Learning by Imitation

no code implementations3 Mar 2016 Zhen Zeng, Benjamin Kuipers

We aim to enable robot to learn object manipulation by imitation.

Object

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