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Parameter-efficient finetuning (PEFT) has become the standard approach for adapting large language models, yet evaluations largely emphasize downstream accuracy while overlooking the retention of pretrained capabilities. We argue that PEFT…

机器学习 · 计算机科学 2026-05-28 Yangyi Huang , Ruotian Peng , Zeju Qiu , Jiale Kang , Yandong Wen , Bernhard Schölkopf , Weiyang Liu

Multi-channel short-time Fourier transform (STFT) domain-based processing of reverberant microphone signals commonly relies on power-spectral-density (PSD) estimates of early source images, where early refers to reflections contained within…

音频与语音处理 · 电气工程与系统科学 2022-11-21 T. Dietzen , S. Doclo , M. Moonen , T. van Waterschoot

Scaling dense retrievers to larger large language model (LLM) backbones has been a dominant strategy for improving their retrieval effectiveness. However, this has substantial cost implications: larger backbones require more expensive…

信息检索 · 计算机科学 2025-06-09 Hang Li , Xiao Wang , Bevan Koopman , Guido Zuccon

The fractional Fourier transform (FrFT), a fundamental operation in physics that corresponds to a rotation of phase space by any angle, is also an indispensable tool employed in digital signal processing for noise reduction. Processing of…

The latest developments in Natural Language Processing (NLP) have demonstrated remarkable progress in a code-text retrieval problem. As the Transformer-based models used in this task continue to increase in size, the computational costs and…

机器学习 · 计算机科学 2024-05-08 Karim Galliamov , Leila Khaertdinova , Karina Denisova

To fully leverage the advantages of large-scale pre-trained language models (PLMs) on downstream tasks, it has become a ubiquitous adaptation paradigm to fine-tune the entire parameters of PLMs. However, this paradigm poses issues of…

计算与语言 · 计算机科学 2023-05-09 Anchun Gui , Han Xiao

This survey delves into the realm of Parameter-Efficient Fine-Tuning (PEFT) within the context of Foundation Models (FMs). PEFT, a cost-effective fine-tuning technique, minimizes parameters and computational complexity while striving for…

计算与语言 · 计算机科学 2025-01-24 Dan Zhang , Tao Feng , Lilong Xue , Yuandong Wang , Yuxiao Dong , Jie Tang

Speaker separation refers to isolating speech of interest in a multi-talker environment. Most methods apply real-valued Time-Frequency (T-F) masks to the mixture Short-Time Fourier Transform (STFT) to reconstruct the clean speech. Hence…

音频与语音处理 · 电气工程与系统科学 2020-04-16 Zhaoheng Ni , Michael I Mandel

We address the problem of phase retrieval (PR) from quantized measurements. The goal is to reconstruct a signal from quadratic measurements encoded with a finite precision, which is indeed the case in many practical applications. We develop…

机器学习 · 计算机科学 2018-10-03 Subhadip Mukherjee , Chandra Sekhar Seelamantula

Parameter-Efficient Tuning (PETuning) methods have been deemed by many as the new paradigm for using pretrained language models (PLMs). By tuning just a fraction amount of parameters comparing to full model finetuning, PETuning methods…

计算与语言 · 计算机科学 2022-10-25 Guanzheng Chen , Fangyu Liu , Zaiqiao Meng , Shangsong Liang

In IEEE 802.11 WiFi-based waveforms, the receiver performs coarse time and frequency synchronization using the first field of the preamble known as the legacy short training field (L-STF). The L-STF occupies upto 40% of the preamble length…

机器学习 · 计算机科学 2023-04-04 Nasim Soltani , Debashri Roy , Kaushik Chowdhury

We generalize the short-time Fourier transform (STFT) formalism for radial velocity extraction to cases where the underlying spectral components are unknown. The method factorizes a spectroscopic time series into principal spectra and…

地球与行星天体物理 · 物理学 2026-02-17 Sahar Shahaf , Barak Zackay

OFDM signals demonstrates high fluctuations termed as Peak to Average Power Ratio (PAPR).The problem of OFDM is the frequent occurrence of high Peaks in the time domain signal which in turn reduces the efficiency of transmit high power…

信息论 · 计算机科学 2014-02-11 Smita Jolania , Sandeep Toshniwal

Very large time series are increasingly available from an ever wider range of IoT-enabled sensors, from which significant insights can be obtained through mining temporal patterns from them. A useful type of patterns found in many…

数据库 · 计算机科学 2023-01-10 Van Long Ho , Nguyen Ho , Torben Bach Pedersen

The Consensus Auditory-Perceptual Evaluation of Voice is a widely employed tool in clinical voice quality assessment that is significant for streaming communication among clinical professionals and benchmarking for the determination of…

声音 · 计算机科学 2023-11-28 Yi-Heng Lin , Wen-Hsuan Tseng , Li-Chin Chen , Ching-Ting Tan , Yu Tsao

Recent synthetic speech detection models typically adapt a pre-trained SSL model via finetuning, which is computationally demanding. Parameter-Efficient Fine-Tuning (PEFT) offers an alternative. However, existing methods lack the specific…

声音 · 计算机科学 2025-10-30 Yassine El Kheir , Fabian Ritter-Guttierez , Arnab Das , Tim Polzehl , Sebastian Möller

Nonnegative Matrix Factorization (NMF) is a powerful tool for decomposing mixtures of audio signals in the Time-Frequency (TF) domain. In applications such as source separation, the phase recovery for each extracted component is a major…

声音 · 计算机科学 2016-11-17 Paul Magron , Roland Badeau , Bertrand David

Many recent studies have focused on fine-tuning pre-trained models for speech emotion recognition (SER), resulting in promising performance compared to traditional methods that rely largely on low-level, knowledge-inspired acoustic…

声音 · 计算机科学 2024-02-15 Tiantian Feng , Shrikanth Narayanan

Prompt tuning attempts to update few task-specific parameters in pre-trained models. It has achieved comparable performance to fine-tuning of the full parameter set on both language understanding and generation tasks. In this work, we study…

计算与语言 · 计算机科学 2022-07-15 Weng Lam Tam , Xiao Liu , Kaixuan Ji , Lilong Xue , Xingjian Zhang , Yuxiao Dong , Jiahua Liu , Maodi Hu , Jie Tang

In this paper, the task of channel sounding using software defined radios (SDRs) is considered. In contrast to classical channel sounding equipment, SDRs are general purpose devices and require additional steps to be implemented when…

信号处理 · 电气工程与系统科学 2022-05-24 Julian Ahrens , Lia Ahrens , Michael Zentarra , Hans D. Schotten