Search results for: Shahram Rahimi

Items from 1 to 20 out of 40 results

chapter

SentiCR: A customized sentiment analysis tool for code review interactions

Toufique Ahmed, Amiangshu Bosu, Anindya Iqbal, Shahram Rahimi

2017 32nd IEEE/ACM International Conference on Automated Software Engineering (ASE) > 106 - 111

2017 32nd IEEE/ACM International Conference on Automated Software Engineering (ASE)

Sentiment Analysis tools, developed for analyzing social media text or product reviews, work poorly on a Software Engineering (SE) dataset. Since prior studies have found developers expressing sentiments during various SE activities, there is a need for a customized sentiment analysis tool for the SE domain. On this goal, we manually labeled 2000 review comments to build a training dataset and used...

chapter

Efficient data lookup in non-DHT based low diameter structured P2P network

Bidyut Gupta, Nick Rahimi, Shahram Rahimi, Ashraf Alyanbaawi

2017 IEEE 15th International Conference on Industrial Informatics (INDIN) > 944 - 950

2017 IEEE 15th International Conference on Industrial Informatics (INDIN)

In this paper, we have considered a recently reported non-DHT based structured P2P system. The architecture is based on Linear Diophantine Equation (LDE) and it is an interest-based system; it offers very efficient data lookup. However, the architecture is restricted in that a peer cannot possess more than one distinct resource type. This may reduce the scope of its application. In this paper, we...

chapter

Towards a patient satisfaction based hospital recommendation system

Tannaz Sattari Tabrizi, Mohammad Reza Khoie, Elham Sahebkar, Shahram Rahimi, more

2016 International Joint Conference on Neural Networks (IJCNN) > 131 - 138

2016 International Joint Conference on Neural Networks (IJCNN)

Surveys are used by hospitals to evaluate patient satisfaction and to improve operation. Collected satisfaction data is usually represented to the hospital administration using statistical charts and graphs. Although this statistical data and visualization is helpful, but because of the size and dimension of the dataset, it is very difficult if not impossible, to identify important factors that could...

chapter

Bayesian decision making using z-numbers

Nina Marhamati, Elham S. Khorasani, Shahram Rahimi

2016 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE) > 2241 - 2248

2016 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE)

Bayesian decision methods have been widely used in different areas for estimating, predicting, and offering decision supports. On the other hand, computing with words (CW) and approximate reasoning have effectively been used to deal with imprecise measurements and inexact information. This work is an attempt to benefit from both approaches and to combine them to model the expert knowledge in natural...

chapter

Towards patient flow optimization in emergency departments using genetic algorithms

Hamed Memari, Shahram Rahimi, Bidyut Gupta, Koushik Sinha, more

2016 IEEE 14th International Conference on Industrial Informatics (INDIN) > 843 - 850

2016 IEEE 14th International Conference on Industrial Informatics (INDIN)

This study aims to optimize patient flow in emergency departments (ED) while minimizing associated costs. In order to compare the effects of the optimization, a simulation model for emergency departments has been implemented using District Event Simulation (DES) and queuing theory, while for the optimization, Genetic Algorithm is used to find the best arrangements. Principally, a discrete event based,...

chapter

LDEPTH: A low diameter hierarchical P2P network architecture

Nick Rahimi, Koushik Sinha, Bidyut Gupta, Shahram Rahimi, more

2016 IEEE 14th International Conference on Industrial Informatics (INDIN) > 832 - 837

2016 IEEE 14th International Conference on Industrial Informatics (INDIN)

In this paper, we present a new approach to designing a scalable, hierarchical overlay P2P system which provides highly efficient data lookup operations as well fault tolerance. Instead of using a distributed hash table (DHT) based approach, we propose the use of Linear Diophantine Equation (LDE) as the mathematical basis to realize a hierarchical P2P architecture. LDE provides a significantly lighter...

chapter

A Generic Mobile Agent Framework towards Ambient Intelligence

Yung-Chuan Lee, Elham S. Khorasani, Shahram Rahimi, Sujatha Nulu

Studies in Computational Intelligence > Knowledge Processing and Decision Making in Agent-Based Systems > 175-192

Recent advances of computing and networking technology have shifted computing convention from stationary to mobile. A forecast conducted by Gartner indicates that global mobile handset sales will increase exponentially in 2008 by 10% from 1.3 billion units in 2007 [13]. Furthermore, the popularity of wireless networking topology including both Wi-Fi access point and cellular mobile telecommunications...

chapter

Novel Crash Recovery Approach for Concurrent Failures in Cluster Federation

Bidyut Gupta, Shahram Rahimi

Lecture Notes in Computer Science > Advances in Grid and Pervasive Computing > Fault Tolerance > 434-445

In this paper, we have proposed a simple and efficient approach for check pointing and recovery in cluster computing environment. The recovery scheme deals with both orphan and lost intra and inter cluster messages. This check pointing scheme ensures that after the system recovers from failures, all processes in different clusters can restart from their respective recent checkpoints; thus avoiding...

chapter

A Reasoning Methodology for CW-Based Question Answering Systems

Elham S. Khorasani, Shahram Rahimi, Bidyut Gupta

Lecture Notes in Computer Science > Fuzzy Logic and Applications > Advanced Applications > 328-335

Question Answering Systems or (QA systems for short) are regarded as the next generation of the current search engines. Instead of returning a list of relevant documents, QA systems find the direct answer to the query posed in natural language. The key difficulty in designing such systems is to perform reasoning on natural language knowledgebase. The theory of Computing with Words (CW), proposed by...

chapter

Fuzzy Spatial Relationships and Mobile Agent Technology in Geospatial Information Systems

Frederick E. Petry, Maria A. Cobb, Dia Ali, Rafal Angryk, more

Studies in Fuzziness and Soft Computing > Applying Soft Computing in Defining Spatial Relations > 123-155

This chapter discusses an integrated work in the definition and implementation of sets of fuzzy spatial relationships concerning topology and direction. We present our basic approach to defining these relationships as an extension to previous work in temporal relations. We also discuss several extensions to this approach that include refinements and alternate definitions. Two implementations are also...

chapter

Domino-Effect Free Crash Recovery for Concurrent Failures in Cluster Federation

Bidyut Gupta, Shahram Rahimi, Vineel Allam, Vamshi Jupally

Lecture Notes in Computer Science > Advances in Grid and Pervasive Computing > Track 1: Cluster Computing > 4-17

In this paper, we have addressed the complex problem of recovery for concurrent failures in cluster computing environment. We have proposed a new approach in which we have dealt with both inter cluster orphan and lost messages unlike the existing works.The proposed recovery approach is free from the domino-effect and hence guarantees the least amount of re-computation after recovery. Besides, a process...

chapter

A Novel Recovery Approach for Cluster Federations

Bidyut Gupta, Shahram Rahimi, Raheel Ahmad, Raja Chirra

Lecture Notes in Computer Science > Advances in Grid and Pervasive Computing > 519-530

In this paper, we have addressed the complex problem of determining a recovery line for cluster federation and have proposed a fast recovery algorithm to handle failures in cluster federations. The main feature of the proposed algorithm is that it can be executed simultaneously by all clusters in the cluster federation. Besides, the number of trips to the stable storage necessary for executing the...

chapter

A Low-Overhead Non-block Checkpointing Algorithm for Mobile Computing Environment

Bidyut Gupta, Shahram Rahimi, Rishad A. Rias, Guru. Bangalore

Lecture Notes in Computer Science > Advances in Grid and Pervasive Computing > Session 15: Mobile Computing > 597-608

In this paper, we have proposed a new approach toward designing a low-overhead non-blocking single phase synchronous checkpointing algorithm suitable for distributed mobile computing environment. The algorithm produces a reduced number of checkpoints. To achieve this reduction in the number of the checkpoints we have used very simple data structure. Each process independently takes its decision whether...

chapter

Candidate core selection for load-balanced multicore shared tree multicasting

Koushik Sinha, Bidyut Gupta, Shahram Rahimi, Ansuman Bhattacharya

2016 3rd International Conference on Recent Advances in Information Technology (RAIT) > 35 - 40

2016 3rd International Conference on Recent Advances in Information Technology (RAIT)

Multicasting can be done in two different ways: source based tree approach and shared tree approach. Protocols such as Core Based Tree (CBT), Protocol Independent Multicasting Sparse Mode (PIM-SM) use shared tree approach. Shared tree approach is preferred over source-based tree approach because in the latter construction of minimum cost tree per source is needed unlike a single shared tree in the...

chapter

Endovascular Treatment of Vascular and Nonvascular Diseases of the Spine

Shahram Rahimi, Ali Shaibani, Ajay K. Wakhloo

Image-Guided Spine Interventions > 299-336

In general, the following entities have been listed under spinal vascular disease: Hemangioblastomas, Cavernous malformation/angioma, Spinal aneurysms, Arteriovenous fistulae, Arteriovenous malformations. With regard to vascular lesions of the vertebral bodies, aneurysmal bone cysts and vertebral hemangiomas also can be mentioned. Many different classification schemes have been suggested over the...

chapter

A Multi-Agent Architecture for Distributed Domain-Specific Information Integration

Shahram Rahimi, Norm Carver, Frederick Petry

Net-Centric Approaches to Intelligence and National Security > 129-148

On both the public Internet and private Intranets, there is a vast amount of data available that is owned and maintained by different organizations, distributed all around the world. These data resources are rich and recent; however, information gathering and knowledge discovery from them, in a particular knowledge domain, confronts major difficulties. The objective of this chapter is to introduce...

article

Modeling and implementation of Z-number

Purvag Patel, Elham S. Khorasani, Shahram Rahimi

Soft Computing > 2016 > 20 > 4 > 1341-1364

Computing with words provides symbolic and semantic methodology to deal with imprecise information associated with natural languages. It encapsulates various fuzzy logic techniques developed in past decades and formalizes them. Z-number is an emerging paradigm that has been utilized in computing with words among others. The concept of a Z-number is intended to provide a basis for computation with...

chapter

Incremental fuzzy clustering for an adaptive backgammon game

Tannaz Sattari Tabrizi, Mohammad Reza Khoie, Shahram Rahimi

2015 Annual Conference of the North American Fuzzy Information Processing Society (NAFIPS) held jointly with 2015 5th World Conference on Soft Computing (WConSC) > 1 - 5

2015 Annual Conference of the North American Fuzzy Information Processing Society (NAFIPS) held jointly with 2015 5th World Conference on Soft Computing (WConSC)

Modern game designs rely on artificial intelligence capabilities to create exciting gaming experience. Adaptive artificial intelligence is one of the leading capabilities which enables a computer controlled opponent to improve its logic and to cover its flaws. In this paper an adaptive AI method for a backgammon game is introduced. The specific design of this game makes its flow to rely on the two...

chapter

Applied Z-numbers

Purvag Patel, Shahram Rahimi, Elham Khorasani

2015 Annual Conference of the North American Fuzzy Information Processing Society (NAFIPS) held jointly with 2015 5th World Conference on Soft Computing (WConSC) > 1 - 6

2015 Annual Conference of the North American Fuzzy Information Processing Society (NAFIPS) held jointly with 2015 5th World Conference on Soft Computing (WConSC)

Z-number is an emerging paradigm that has been utilized in computing with words among others. The concept of a Z-number is intended to provide a basis for computation with numbers that deal with reliability and likelihood. Z-numbers are confluence between the two most prominent approaches to uncertainty, probability and possibility, which allow computations on complex statements. computations on Z-numbers...

article

HLA-DRB1 does not have a role in clinical response to interferon-beta among Iranian multiple sclerosis patients

Sara Samadzadeh, Elnaz Tabibian, Tayebeh Sabokbar, Abbas Shakoori, more

Journal of the Neurological Sciences > 2015 > 352 > 1-2 > 37-40

The role of human leukocyte antigen (HLA) in clinical response to immunotherapy is not completely known. In this study we evaluated the relationship between HLA-DRB1 genotype, which has been proved to be more common in Iranian MS patients, and clinical response to interferon-beta (IFNβ), which is the most common immunotherapy for relapsing–remitting MS.In this study 68 Iranian patients with confirmed...

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INFONA - science communication portal

Search results for: Shahram Rahimi

SentiCR: A customized sentiment analysis tool for code review interactions

Efficient data lookup in non-DHT based low diameter structured P2P network

Towards a patient satisfaction based hospital recommendation system

Bayesian decision making using z-numbers

Towards patient flow optimization in emergency departments using genetic algorithms

LDEPTH: A low diameter hierarchical P2P network architecture

A Generic Mobile Agent Framework towards Ambient Intelligence

Novel Crash Recovery Approach for Concurrent Failures in Cluster Federation

A Reasoning Methodology for CW-Based Question Answering Systems

Fuzzy Spatial Relationships and Mobile Agent Technology in Geospatial Information Systems

Domino-Effect Free Crash Recovery for Concurrent Failures in Cluster Federation

A Novel Recovery Approach for Cluster Federations

A Low-Overhead Non-block Checkpointing Algorithm for Mobile Computing Environment

Candidate core selection for load-balanced multicore shared tree multicasting

Endovascular Treatment of Vascular and Nonvascular Diseases of the Spine

A Multi-Agent Architecture for Distributed Domain-Specific Information Integration

Modeling and implementation of Z-number

Incremental fuzzy clustering for an adaptive backgammon game

Applied Z-numbers

HLA-DRB1 does not have a role in clinical response to interferon-beta among Iranian multiple sclerosis patients

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