mohammad sadeghi - Academia.edu (original) (raw)

Papers by mohammad sadeghi

Research paper thumbnail of On cycle-free lattices

Contemporary Mathematics, 2010

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Research paper thumbnail of Modified Predictive Validation Test for Gaussian Mixture Modelling

Lecture Notes in Computer Science, 2002

This paper is concerned with the problem of probability density function estimation using mixture... more This paper is concerned with the problem of probability density function estimation using mixture modelling. In [7] and [3], we proposed the Predictive Validation, PV, technique as a reliable tool for the Gaussian mixture model architecture selection. We propose a modified form of the PV method to eliminate underlying problems of the validation test for a large number of test points or very complex models.

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Research paper thumbnail of POLAROGRAPHIC CHARACTERIZATION OF AROMATIC STRUCTURES IN COAL LIQUID PRODUCTS

Fuel Science and Technology International, 1990

... POLAROGRAPHIC CHARACTERIZATION OF AROMATIC STRUCTURES IN COAL LIQUID PRODUCTS Kazem M. Sadegh... more ... POLAROGRAPHIC CHARACTERIZATION OF AROMATIC STRUCTURES IN COAL LIQUID PRODUCTS Kazem M. Sadeghi, Mohammad-Ali Sadeghi and Teh Fu Yen ... Catalytic Inc., Wilsonville, Ala. - Solvent-Refined Coal Process [Catalytic Inc.(1976). ...

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Research paper thumbnail of Model Selection by Predictive Validation

Pattern Analysis & Applications, 2002

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Research paper thumbnail of Tube length-assisted optimized aerosol trapping

Optics Communications, 2014

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Research paper thumbnail of Crosslinked Graft Copolymer of Methacrylic Acid and Gelatin as a Novel Hydrogel with pH-Responsiveness Properties

Materials, 2011

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Research paper thumbnail of CFD Simulation of a Methane Steam Reforming Reactor

International Journal of Chemical Reactor Engineering, 2000

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Research paper thumbnail of The Optimization of an Ammonia Synthesis Reactor Using Genetic Algorithm

International Journal of Chemical Reactor Engineering, 2000

Page 1. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING Volume 6 2008 Article A113 The Opti... more Page 1. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING Volume 6 2008 Article A113 The Optimization of an Ammonia Synthesis Reactor Using Genetic Algorithm Mohammad Taghi Sadeghi ∗ Azam Kavianiboroujeni † ...

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Research paper thumbnail of Phrasal Recognition

IEEE Transactions on Pattern Analysis and Machine Intelligence, 2000

In this paper, we introduce visual phrases, complex visual composites like &a... more In this paper, we introduce visual phrases, complex visual composites like "a person riding a horse." Visual phrases often display significantly reduced visual complexity compared to their component objects because the appearance of those objects can change profoundly when they participate in relations. We introduce a dataset suitable for phrasal recognition that uses familiar PASCAL object categories, and demonstrate significant experimental gains resulting from exploiting visual phrases. We show that a visual phrase detector significantly outperforms a baseline which detects component objects and reasons about relations, even though visual phrase training sets tend to be smaller than those for objects. We argue that any multiclass detection system must decode detector outputs to produce final results; this is usually done with nonmaximum suppression. We describe a novel decoding procedure that can account accurately for local context without solving difficult inference problems. We show this decoding procedure outperforms the state of the art. Finally, we show that decoding a combination of phrasal and object detectors produces real improvements in detector results.

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Research paper thumbnail of FFT Based Sum-Product Algorithm for Decoding LDPC Lattices

IEEE Communications Letters, 2000

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Research paper thumbnail of Fractionation of various heavy oils and bitumen for characterization based on polarity

Fuel, 1989

Shale oil, coal liquid, heavy petroleum oil, and oil sand bitumen were separated into four fracti... more Shale oil, coal liquid, heavy petroleum oil, and oil sand bitumen were separated into four fractions through a silica gel column, with good recovery and repeatability. Structural characterization was performed using elemental analysis ir, and 1 H nmr by the modified Brown-Ladner ...

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Research paper thumbnail of Formation of Mesophase Using Precursors from Shale Oil

Energy Sources, 1993

Page 1. Energy Sourw, Volume IS. pp. 391-401 Printed in the UK. All rights nnsrvd. 00908312193 11... more Page 1. Energy Sourw, Volume IS. pp. 391-401 Printed in the UK. All rights nnsrvd. 00908312193 110.00 +.M Copyright O 1993 nylor & Fmis Formation of Mesophase Using Precursors from Shale Oil MOHAMMAD-ALI SADEGHI KAZEM M. SADEGHI TEH FU YEN ...

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Research paper thumbnail of X-Ray Diffraction of Asphaltenes

Energy Sources, 1986

Page 1. X-Ray Diffraction of Asphaltenes Mohammad-Ali Sadeghi, George V. Chilingarian, and Teh Fu... more Page 1. X-Ray Diffraction of Asphaltenes Mohammad-Ali Sadeghi, George V. Chilingarian, and Teh Fu Yen School of Engineering University of Southern California Los Angeles, California Abstract Fundamental principles of ...

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Research paper thumbnail of A New Tar Sand Recovery Process: Recovery Methods and Characterization of Products

Energy Sources, 1990

Page 1. A New Tar Sand Recovery Process: Recovery Methods and Characterization of Products KAZEM ... more Page 1. A New Tar Sand Recovery Process: Recovery Methods and Characterization of Products KAZEM M. SADEGHI MOHAMMAD-ALI SADEGHI JIH-FEN KUO James M. Montgomery, Inc. 250 N. Madison Ave. Pasadena, CA 91 109-7009 USA LONG-KUAN JANG ...

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Research paper thumbnail of Novel extraction of tar sands by sonication with the aid of in-situ surfactants

Energy & Fuels, 1990

F [(QF)(XF)(pF) - (QP)(XP)(PP)I /[(QF)(XF)(pF)I ... (1 - F) = [(QP)(XP)(pP)I/[(QF)(XF)(pF)I (A21 ... more F [(QF)(XF)(pF) - (QP)(XP)(PP)I /[(QF)(XF)(pF)I ... (1 - F) = [(QP)(XP)(pP)I/[(QF)(XF)(pF)I (A21 and also by definition, space time is ... If first-order kinetics applies and the reactor operates as an ideal CSTR r = klW(CP) (A41 ... Also from mass balance r = [(QF)(XF)(pF) - ...

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Research paper thumbnail of The necessary length of carbon nanotubes required to optimize solar cells

Chemistry Central Journal, 2007

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Research paper thumbnail of A NEW PROCESS FOR TAR SAND RECOVERY

Chemical Engineering Communications, 1992

... INTRODUCTION Tar sands, also called oil sands or bituminous sands, are essentially siliceous ... more ... INTRODUCTION Tar sands, also called oil sands or bituminous sands, are essentially siliceous materials such as sand, sandstones, or diatomaceous earth deposits impregnated with about 5 to 20 percent by weight of a dense, viscous, low API gravity bitumen [Yen (1990)]. ...

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Research paper thumbnail of Effects of oxygen on mesophase microstructure and pyrolysis yield in coal liquid asphaltene

Carbon, 1989

The oxygen contents of the oxidized asphaltenes were analyzed both quantitatively by direct Unter... more The oxygen contents of the oxidized asphaltenes were analyzed both quantitatively by direct Unterzaucher method and semi-quantitatively by FT-IR spectroscopy. Subsequently the asphaltenes were pyrolyzed under nitrogen. The pyrolysis products were examined both ...

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Research paper thumbnail of Method of optimizing mesophase formation in graphite and coke precursors

Carbon, 1989

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Research paper thumbnail of 4765885 Treatment of carbonaceous materials

Carbon, 1989

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Research paper thumbnail of On cycle-free lattices

Contemporary Mathematics, 2010

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Research paper thumbnail of Modified Predictive Validation Test for Gaussian Mixture Modelling

Lecture Notes in Computer Science, 2002

This paper is concerned with the problem of probability density function estimation using mixture... more This paper is concerned with the problem of probability density function estimation using mixture modelling. In [7] and [3], we proposed the Predictive Validation, PV, technique as a reliable tool for the Gaussian mixture model architecture selection. We propose a modified form of the PV method to eliminate underlying problems of the validation test for a large number of test points or very complex models.

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Research paper thumbnail of POLAROGRAPHIC CHARACTERIZATION OF AROMATIC STRUCTURES IN COAL LIQUID PRODUCTS

Fuel Science and Technology International, 1990

... POLAROGRAPHIC CHARACTERIZATION OF AROMATIC STRUCTURES IN COAL LIQUID PRODUCTS Kazem M. Sadegh... more ... POLAROGRAPHIC CHARACTERIZATION OF AROMATIC STRUCTURES IN COAL LIQUID PRODUCTS Kazem M. Sadeghi, Mohammad-Ali Sadeghi and Teh Fu Yen ... Catalytic Inc., Wilsonville, Ala. - Solvent-Refined Coal Process [Catalytic Inc.(1976). ...

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Research paper thumbnail of Model Selection by Predictive Validation

Pattern Analysis & Applications, 2002

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Research paper thumbnail of Tube length-assisted optimized aerosol trapping

Optics Communications, 2014

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Research paper thumbnail of Crosslinked Graft Copolymer of Methacrylic Acid and Gelatin as a Novel Hydrogel with pH-Responsiveness Properties

Materials, 2011

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Research paper thumbnail of CFD Simulation of a Methane Steam Reforming Reactor

International Journal of Chemical Reactor Engineering, 2000

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Research paper thumbnail of The Optimization of an Ammonia Synthesis Reactor Using Genetic Algorithm

International Journal of Chemical Reactor Engineering, 2000

Page 1. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING Volume 6 2008 Article A113 The Opti... more Page 1. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING Volume 6 2008 Article A113 The Optimization of an Ammonia Synthesis Reactor Using Genetic Algorithm Mohammad Taghi Sadeghi ∗ Azam Kavianiboroujeni † ...

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Research paper thumbnail of Phrasal Recognition

IEEE Transactions on Pattern Analysis and Machine Intelligence, 2000

In this paper, we introduce visual phrases, complex visual composites like &a... more In this paper, we introduce visual phrases, complex visual composites like "a person riding a horse." Visual phrases often display significantly reduced visual complexity compared to their component objects because the appearance of those objects can change profoundly when they participate in relations. We introduce a dataset suitable for phrasal recognition that uses familiar PASCAL object categories, and demonstrate significant experimental gains resulting from exploiting visual phrases. We show that a visual phrase detector significantly outperforms a baseline which detects component objects and reasons about relations, even though visual phrase training sets tend to be smaller than those for objects. We argue that any multiclass detection system must decode detector outputs to produce final results; this is usually done with nonmaximum suppression. We describe a novel decoding procedure that can account accurately for local context without solving difficult inference problems. We show this decoding procedure outperforms the state of the art. Finally, we show that decoding a combination of phrasal and object detectors produces real improvements in detector results.

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Research paper thumbnail of FFT Based Sum-Product Algorithm for Decoding LDPC Lattices

IEEE Communications Letters, 2000

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Research paper thumbnail of Fractionation of various heavy oils and bitumen for characterization based on polarity

Fuel, 1989

Shale oil, coal liquid, heavy petroleum oil, and oil sand bitumen were separated into four fracti... more Shale oil, coal liquid, heavy petroleum oil, and oil sand bitumen were separated into four fractions through a silica gel column, with good recovery and repeatability. Structural characterization was performed using elemental analysis ir, and 1 H nmr by the modified Brown-Ladner ...

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Formation of Mesophase Using Precursors from Shale Oil

Energy Sources, 1993

Page 1. Energy Sourw, Volume IS. pp. 391-401 Printed in the UK. All rights nnsrvd. 00908312193 11... more Page 1. Energy Sourw, Volume IS. pp. 391-401 Printed in the UK. All rights nnsrvd. 00908312193 110.00 +.M Copyright O 1993 nylor & Fmis Formation of Mesophase Using Precursors from Shale Oil MOHAMMAD-ALI SADEGHI KAZEM M. SADEGHI TEH FU YEN ...

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Research paper thumbnail of X-Ray Diffraction of Asphaltenes

Energy Sources, 1986

Page 1. X-Ray Diffraction of Asphaltenes Mohammad-Ali Sadeghi, George V. Chilingarian, and Teh Fu... more Page 1. X-Ray Diffraction of Asphaltenes Mohammad-Ali Sadeghi, George V. Chilingarian, and Teh Fu Yen School of Engineering University of Southern California Los Angeles, California Abstract Fundamental principles of ...

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Research paper thumbnail of A New Tar Sand Recovery Process: Recovery Methods and Characterization of Products

Energy Sources, 1990

Page 1. A New Tar Sand Recovery Process: Recovery Methods and Characterization of Products KAZEM ... more Page 1. A New Tar Sand Recovery Process: Recovery Methods and Characterization of Products KAZEM M. SADEGHI MOHAMMAD-ALI SADEGHI JIH-FEN KUO James M. Montgomery, Inc. 250 N. Madison Ave. Pasadena, CA 91 109-7009 USA LONG-KUAN JANG ...

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Research paper thumbnail of Novel extraction of tar sands by sonication with the aid of in-situ surfactants

Energy & Fuels, 1990

F [(QF)(XF)(pF) - (QP)(XP)(PP)I /[(QF)(XF)(pF)I ... (1 - F) = [(QP)(XP)(pP)I/[(QF)(XF)(pF)I (A21 ... more F [(QF)(XF)(pF) - (QP)(XP)(PP)I /[(QF)(XF)(pF)I ... (1 - F) = [(QP)(XP)(pP)I/[(QF)(XF)(pF)I (A21 and also by definition, space time is ... If first-order kinetics applies and the reactor operates as an ideal CSTR r = klW(CP) (A41 ... Also from mass balance r = [(QF)(XF)(pF) - ...

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Research paper thumbnail of The necessary length of carbon nanotubes required to optimize solar cells

Chemistry Central Journal, 2007

Bookmarks Related papers MentionsView impact

Research paper thumbnail of A NEW PROCESS FOR TAR SAND RECOVERY

Chemical Engineering Communications, 1992

... INTRODUCTION Tar sands, also called oil sands or bituminous sands, are essentially siliceous ... more ... INTRODUCTION Tar sands, also called oil sands or bituminous sands, are essentially siliceous materials such as sand, sandstones, or diatomaceous earth deposits impregnated with about 5 to 20 percent by weight of a dense, viscous, low API gravity bitumen [Yen (1990)]. ...

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Research paper thumbnail of Effects of oxygen on mesophase microstructure and pyrolysis yield in coal liquid asphaltene

Carbon, 1989

The oxygen contents of the oxidized asphaltenes were analyzed both quantitatively by direct Unter... more The oxygen contents of the oxidized asphaltenes were analyzed both quantitatively by direct Unterzaucher method and semi-quantitatively by FT-IR spectroscopy. Subsequently the asphaltenes were pyrolyzed under nitrogen. The pyrolysis products were examined both ...

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Method of optimizing mesophase formation in graphite and coke precursors

Carbon, 1989

Bookmarks Related papers MentionsView impact

Research paper thumbnail of 4765885 Treatment of carbonaceous materials

Carbon, 1989

Bookmarks Related papers MentionsView impact