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128 results on '"Mahmoudi, Fariborz"'

3. PCA-Based Relevance Feedback in Document Image Retrieval

Author

Tavoli, Reza and Mahmoudi, Fariborz

Subjects
Computer Science - Information Retrieval
Abstract

Research has been devoted in the past few years to relevance feedback as an effective solution to improve performance of information retrieval systems. Relevance feedback refers to an interactive process that helps to improve the retrieval performance. In this paper we propose the use of relevance feedback to improve document image retrieval System (DIRS) performance. This paper compares a variety of strategies for positive and negative feedback. In addition, feature subspace is extracted and updated during the feedback process using a Principal Component Analysis (PCA) technique and based on user's feedback. That is, in addition to reducing the dimensionality of feature spaces, a proper subspace for each type of features is obtained in the feedback process to further improve the retrieval accuracy. Experiments show that using relevance Feedback in DIR achieves better performance than common DIR.

Published
2012

8. Roles of Various Brain Structures on Non-Invasive Lateralization of Temporal Lobe Epilepsy

Author

Mahmoudi, Fariborz, Nazem-Zadeh, Mohammad-Reza, Bagher-Ebadian, Hassan, Schwalb, Jason M., Soltanian-Zadeh, Hamid, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Bebis, George, editor, Boyle, Richard, editor, Parvin, Bahram, editor, Koracin, Darko, editor, McMahan, Ryan, editor, Jerald, Jason, editor, Zhang, Hui, editor, Drucker, Steven M., editor, Kambhamettu, Chandra, editor, El Choubassi, Maha, editor, Deng, Zhigang, editor, and Carlson, Mark, editor

Published
2014
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10. Non-linear Grayscale Image Enhancement Based on Firefly Algorithm

Author

Hassanzadeh, Tahereh, Vojodi, Hakimeh, Mahmoudi, Fariborz, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Panigrahi, Bijaya Ketan, editor, Suganthan, Ponnuthurai Nagaratnam, editor, Das, Swagatam, editor, and Satapathy, Suresh Chandra, editor

Published
2011
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13. Cross-Language Information Retrieval Using Meta-language Index Construction and Structural Queries

Author

Jadidinejad, Amir Hossein, Mahmoudi, Fariborz, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Peters, Carol, editor, Di Nunzio, Giorgio Maria, editor, Kurimo, Mikko, editor, Mandl, Thomas, editor, Mostefa, Djamel, editor, Peñas, Anselmo, editor, and Roda, Giovanna, editor

Published
2010
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14. Evaluation of Perstem: A Simple and Efficient Stemming Algorithm for Persian

Author

Jadidinejad, Amir Hossein, Mahmoudi, Fariborz, Dehdari, Jon, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Peters, Carol, editor, Di Nunzio, Giorgio Maria, editor, Kurimo, Mikko, editor, Mandl, Thomas, editor, Mostefa, Djamel, editor, Peñas, Anselmo, editor, and Roda, Giovanna, editor

Published
2010
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15. A Novel Handwritten Letter Recognizer Using Enhanced Evolutionary Neural Network

Author

Mahmoudi, Fariborz, Mirzashaeri, Mohsen, Shahamatnia, Ehsan, Faridnia, Saed, Akan, Ozgur, Series editor, Bellavista, Paolo, Series editor, Cao, Jiannong, Series editor, Dressler, Falko, Series editor, Ferrari, Domenico, Series editor, Gerla, Mario, Series editor, Kobayashi, Hisashi, Series editor, Palazzo, Sergio, Series editor, Sahni, Sartaj, Series editor, Shen, Xuemin (Sherman), Series editor, Stan, Mircea, Series editor, Xiaohua, Jia, Series editor, Zomaya, Albert, Series editor, Coulson, Geoffrey, Series editor, and Sorell, Matthew, editor

Published
2009
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16. Image Encryption Using Chaotic Signal and Max–Heap Tree

Author

Mahmoudi, Fariborz, Enayatifar, Rasul, Mirzashaeri, Mohsen, Akan, Ozgur, Series editor, Bellavista, Paolo, Series editor, Cao, Jiannong, Series editor, Dressler, Falko, Series editor, Ferrari, Domenico, Series editor, Gerla, Mario, Series editor, Kobayashi, Hisashi, Series editor, Palazzo, Sergio, Series editor, Sahni, Sartaj, Series editor, Shen, Xuemin (Sherman), Series editor, Stan, Mircea, Series editor, Xiaohua, Jia, Series editor, Zomaya, Albert, Series editor, Coulson, Geoffrey, Series editor, and Sorell, Matthew, editor

Published
2009
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17. MEG Coherence and DTI Connectivity in mTLE

Author

Nazem-Zadeh, Mohammad-Reza, Bowyer, Susan M., Moran, John E., Davoodi-Bojd, Esmaeil, Zillgitt, Andrew, Weiland, Barbara J., Bagher-Ebadian, Hassan, Mahmoudi, Fariborz, Elisevich, Kost, and Soltanian-Zadeh, Hamid

Published
2016
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30. Application of MEG coherence in lateralization of mTLE

Author

Nazem-Zadeh, Mohammad R., primary, Bowyer, Susan M., additional, Moran, John E., additional, Davoodi-Bojd, Esmaeil, additional, Zillgitt, Andrew, additional, Bagher-Ebadian, Hassan, additional, Mahmoudi, Fariborz, additional, Elisevich, Kost V., additional, and Soltanian-Zadeh, Hamid, additional

Published
2016
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31. Application of DTI connectivity in lateralization of mTLE

Author

Nazem-Zadeh, Mohammad R., primary, Bowyer, Susan M., additional, Moran, John E., additional, Davoodi-Bojd, Esmaeil, additional, Zillgitt, Andrew, additional, Bagher-Ebadian, Hassan, additional, Mahmoudi, Fariborz, additional, Elisevich, Kost V., additional, and Soltanian-Zadeh, Hamid, additional

Published
2016
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42. Conceptual feature generation for textual information using a conceptual network constructed from Wikipedia.

Author

Jadidinejad, Amir H., Mahmoudi, Fariborz, and Meybodi, M. R.

Subjects
*DOCUMENT classification (Electronic documents), *DATA mining, *NATURAL language processing, *DATABASE searching, *ELECTRONIC data processing, *RANDOM walks
Abstract

A proper semantic representation of textual information underlies many natural language processing tasks. In this paper, a novel semantic annotator is presented to generate conceptual features for text documents. A comprehensive conceptual network is automatically constructed with the aid of Wikipedia that has been represented as a Markov chain. Furthermore, semantic annotator gets a fragment of natural language text and initiates a random walk to generate conceptual features that represent topical semantic of the input text. The generated conceptual features are applicable to many natural language processing tasks where the input is textual information and the output is a decision based on its context. Consequently, the effectiveness of the generated features is evaluated in the task of document clustering and classification. Empirical results demonstrate that representing text using conceptual features and considering the relations between concepts can significantly improve not only the bag of words representation but also other state-of-the-art approaches. [ABSTRACT FROM AUTHOR]

Published
2016
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