Search Results for author: Nasser Ghadiri

Found 16 papers, 3 papers with code

Applying unsupervised keyphrase methods on concepts extracted from discharge sheets

no code implementations15 Mar 2023 Hoda Memarzadeh, Nasser Ghadiri, Matthias Samwald, Maryam Lotfi Shahreza

Considering that most of the clinical concepts are in the form of multi-word expressions and their accurate identification requires the user to specify n-gram range, we have proposed a shortcut method to preserve the structure of the expression based on TF-IDF.

Binary Classification Entity Linking +3

Integration of Text and Graph-based Features for Detecting Mental Health Disorders from Voice

1 code implementation14 May 2022 Nasser Ghadiri, Rasoul Samani, Fahime Shahrokh

With the availability of voice-enabled devices such as smart phones, mental health disorders could be detected and treated earlier, particularly post-pandemic.

Depression Detection

Hybrid deep learning methods for phenotype prediction from clinical notes

no code implementations16 Aug 2021 Sahar Khalafi, Nasser Ghadiri, Milad Moradi

We also showed that BiGRU layer with FastText embedding had better performance than BiLSTM layer to identify patient phenotypes.

Management Mortality Prediction +1

A complex network approach to time series analysis with application in diagnosis of neuromuscular disorders

no code implementations16 Aug 2021 Samaneh Samiei, Nasser Ghadiri, Behnaz Ansari

This paper proposes a new approach to network development named GraphTS to overcome the limited accuracy of existing methods through EMG time series using the visibility graph method.

Electromyography (EMG) Time Series +1

A Study into patient similarity through representation learning from medical records

1 code implementation29 Apr 2021 Hoda Memarzadeh, Nasser Ghadiri, Matthias Samwald, Maryam Lotfi Shahreza

To address the limitations of previous approaches in handling complex parts of EMR data, an unsupervised method is proposed for building a patient representation, which integrates unstructured data with structured data extracted from patients' EMRs.

Mortality Prediction Representation Learning

MultiGBS: A multi-layer graph approach to biomedical summarization

no code implementations27 Aug 2020 Ensieh Davoodijam, Nasser Ghadiri, Maryam Lotfi Shahreza, Fabio Rinaldi

Automatic text summarization methods generate a shorter version of the input text to assist the reader in gaining a quick yet informative gist.

Extractive Text Summarization Semantic Similarity +2

Text Summarization in the Biomedical Domain

no code implementations6 Aug 2019 Milad Moradi, Nasser Ghadiri

The primary purpose of this chapter is to review the most significant research efforts made in the current decade toward new methods of biomedical text summarization.

Text Summarization

A hybrid spatial data mining approach based on fuzzy topological relations and MOSES evolutionary algorithm

no code implementations21 Apr 2017 Amir Hossein Goudarzi, Nasser Ghadiri

A hybrid architecture called GGeo is proposed to apply the MOSES mining rules considering fuzzy topological relations from spatial data.

Decision Making General Classification

Heter-LP: A heterogeneous label propagation algorithm and its application in drug repositioning

1 code implementation8 Nov 2016 Maryam Lotfi Shahreza, Nasser Ghadiri, Seyed Rasul Mossavi, Jaleh Varshosaz, James Green

As a result, it is necessary for drug development studies to conduct an investigation into the interrelationships of drugs, protein targets, and diseases.

Data Integration Drug Discovery

Different approaches for identifying important concepts in probabilistic biomedical text summarization

no code implementations10 May 2016 Milad Moradi, Nasser Ghadiri

Moreover, the results suggest that using the meaningfulness measure and considering the correlations of concepts in the feature selection step lead to a significant increase in the performance of summarization.

feature selection Sentence +1

Fuzzy Least Squares Twin Support Vector Machines

no code implementations20 May 2015 Javad Salimi Sartakhti, Homayun Afrabandpey, Nasser Ghadiri

Least Squares Twin Support Vector Machine (LST-SVM) has been shown to be an efficient and fast algorithm for binary classification.

Binary Classification General Classification

Spatial database implementation of fuzzy region connection calculus for analysing the relationship of diseases

no code implementations18 May 2015 Somaye Davari, Nasser Ghadiri

Analyzing huge amounts of spatial data plays an important role in many emerging analysis and decision-making domains such as healthcare, urban planning, agriculture and so on.

Decision Making

Ambiguity-Driven Fuzzy C-Means Clustering: How to Detect Uncertain Clustered Records

no code implementations9 Sep 2014 Meysam Ghaffari, Nasser Ghadiri

However, the accuracy of FCM is subject to false detections caused by noisy records, weak feature selection and low certainty of the algorithm in some cases.

Clustering Decision Making +2

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