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Publications

Publications by Tahsir Ahmed Munna

2025

Using LLMs to Generate Patient Journeys in Portuguese: an Experiment

Authors
Munna, TA; Fernandes, AL; Silvano, P; Guimarães, N; Jorge, A;

Publication
Proceedings of Text2Story - Eighth Workshop on Narrative Extraction From Texts held in conjunction with the 47th European Conference on Information Retrieval (ECIR 2025), Lucca, Italy, April 10, 2025.

Abstract
The relationship of a patient with a hospital from admission to discharge is often kept in a series of textual documents that describe the patient’s journey. These documents are important to analyze the different steps of the clinical process and to make aggregated studies of the paths of patients in the hospital. In this paper, we explore the potential of Large Language Models (LLMs) to generate realistic and comprehensive patient journeys in European Portuguese, addressing the scarcity of medical data in this specific context. We employed Google’s Gemini 1.5 Flash model and utilized a dataset of 285 European Portuguese published case reports from the SPMI website, published by the Portuguese Society of Internal Medicine, as references for generating synthetic medical reports. Our methodology involves a sequential approach to generating a synthetic patient journey. Initially, we generate an admission report, followed by a discharge report. Subsequently, we generate a comprehensive patient journey that integrates the admission, multiple daily progress reports, and the discharge into a cohesive narrative. This end-to-end process ensures a realistic and detailed representation of the patient’s clinical pathway as a patient’s journey. The generated reports were rigorously evaluated by medical and linguistic professionals, as well as automatic metrics to measure the inclusion of key medical entities, similarity to the case report, and correct Portuguese variant. Both qualitative and quantitative evaluations confirmed that the generated synthetic reports are predominantly written in European Portuguese without the loss of important medical information from the case reports. This work contributes to developing high-quality synthetic medical data for training LLMs and advancing AI-driven healthcare applications in under-resourced language settings. © 2025 Copyright for this paper by its authors.

2023

COMPLEXITY SCALABLE LEARNING-BASED IMAGE DECODING

Authors
Munna, TA; Ascenso, A;

Publication
2023 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, ICIP

Abstract
Recently, learning-based image compression has attracted a lot of attention, leading to the development of a new JPEG AI standard based on neural networks. Typically, this type of coding solution has much lower encoding complexity compared to conventional coding standards such as HEVC and VVC (Intra mode) but has much higher decoding complexity. Therefore, to promote the wide adoption of learning-based image compression, especially to resource-constrained (such as mobile) devices, it is important to achieve lower decoding complexity even if at the cost of some coding efficiency. This paper proposes a complexity scalable decoder that can control the decoding complexity by proposing a novel procedure to learn the filters of the convolutional layers at the decoder by varying the number of channels at each layer, effectively having simple to more complex decoding networks. A regularization loss is employed with pruning after training to obtain a set of scalable layers, which may use more or fewer channels depending on the complexity budget. Experimental results show that complexity can be significantly reduced while still allowing a competitive rate-distortion performance.

2018

Simplified Mapreduce Mechanism for Large Scale Data Processing

Authors
Tahsir Ahmed Munna, M; Muhammad Allayear, S; Mohtashim Alam, M; Shah Mohammad Motiur Rahman, S; Samadur Rahman, M; Mesbahuddin Sarker, M;

Publication
International Journal of Engineering & Technology

Abstract
MapReduce has become a popular programming model for processing and running large-scale data sets with a parallel, distributed paradigm on a cluster. Hadoop MapReduce is needed especially for large scale data like big data processing. In this paper, we work to modify the Hadoop MapReduce Algorithm and implement it to reduce processing time.  

2019

NStackSenti: Evaluation of a Multi-level Approach for Detecting the Sentiment of Users

Authors
Sohan, MF; Rahman, SSMM; Munna, MTA; Allayear, SM; Rahman, MH; Rahman, MM;

Publication
Communications in Computer and Information Science - Next Generation Computing Technologies on Computational Intelligence

Abstract

2020

A Sentiment Analysis Based Approach for Understanding the User Satisfaction on Android Application

Authors
Rahman, MM; Rahman, SSMM; Allayear, SM; Patwary, MFK; Munna, MTA;

Publication
Advances in Intelligent Systems and Computing - Data Engineering and Communication Technology

Abstract

2018

Relative Direction: Location Path Providing Method for Allied Intelligent Agent

Authors
Kabir, SR; Alam, MM; Allayear, SM; Munna, MTA; Hossain, SS; Rahman, SSMM;

Publication
Communications in Computer and Information Science - Advances in Computing and Data Sciences

Abstract

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