activity
20242026
most citedFrom Blurry to Brilliant Detection: YOLO-Based Aerial Object Detection with Super Resolution

6 citations · 8 across the 9 of their papers we have counts for

collaborators

10 papers

cs.SD2026

Ecologically-Constrained Task Arithmetic for Multi-Taxa Bioacoustic Classifiers Without Shared Data

Ragib Amin Nihal, Benjamin Yen, Runwu Shi +2

Training data for bioacoustics is scattered across taxa, regions, and institutions. Centralizing it all is often infeasible. We show that independently fine-tuned BEATs encoders ca…

cs.CL2025

Pattern Enhanced Multi-Turn Jailbreaking: Exploiting Structural Vulnerabilities in Large Language Models

Ragib Amin Nihal, Rui Wen, Kazuhiro Nakadai +1

Large language models (LLMs) remain vulnerable to multi-turn jailbreaking attacks that exploit conversational context to bypass safety constraints gradually. These attacks target d…

cs.SD2025

Cross-Attention with Confidence Weighting for Multi-Channel Audio Alignment

Ragib Amin Nihal, Benjamin Yen, Takeshi Ashizawa +1

Multi-channel audio alignment is a key requirement in bioacoustic monitoring, spatial audio systems, and acoustic localization. However, existing methods often struggle to address…

cs.CV2025

Knowledge-Augmented Vision Language Models for Underwater Bioacoustic Spectrogram Analysis

Ragib Amin Nihal, Benjamin Yen, Takeshi Ashizawa +1

Marine mammal vocalization analysis depends on interpreting bioacoustic spectrograms. Vision Language Models (VLMs) are not trained on these domain-specific visualizations. We inve…

eess.AS2025

Unsupervised Single-Channel Speech Separation with Diffusion under Speaker-Embedding Guidance

Runwu Shi, Kai Li, Yiyan Wang +5

Speech separation is a fundamental task in audio processing, typically addressed with fully supervised systems trained on paired mixtures. While effective, such systems typically r…

eess.AS2025

Single-Channel Target Speech Extraction Utilizing Distance and Room Clues

Runwu Shi, Zirui Lin, Benjamin Yen +3

This paper aims to achieve single-channel target speech extraction (TSE) in enclosures utilizing distance clues and room information. Recent works have verified the feasibility of…

cs.SD2025★ 1 cited

Weakly Supervised Detection and Temporal Localization of Whale Calls in Long-Duration Bioacoustic Data

Ragib Amin Nihal, Benjamin Yen, Runwu Shi +2

Passive acoustic monitoring (PAM) systems generate continuous recordings spanning months, yet automated bioacoustic analysis of whale calls requires two separate annotation efforts…

cs.CV2024★ 1 cited

UAV-Enhanced Combination to Application: Comprehensive Analysis and Benchmarking of a Human Detection Dataset for Disaster Scenarios

Ragib Amin Nihal, Benjamin Yen, Katsutoshi Itoyama +1

Unmanned aerial vehicles (UAVs) have revolutionized search and rescue (SAR) operations, but the lack of specialized human detection datasets for training machine learning models po…

cs.CL2024

SALAD: Smart AI Language Assistant Daily

Ragib Amin Nihal, Tran Dong Huu Quoc, Lin Zirui +4

SALAD is an AI-driven language-learning application designed to help foreigners learn Japanese. It offers translations in Kanji-Kana-Romaji, speech recognition, translated audio, v…

cs.CV2024★ 6 cited

From Blurry to Brilliant Detection: YOLO-Based Aerial Object Detection with Super Resolution

Ragib Amin Nihal, Benjamin Yen, Takeshi Ashizawa +2

Aerial object detection presents challenges from small object sizes, high density clustering, and image quality degradation from distance and motion blur. These factors create an i…