Physical Sciences and Mathematics Commons^™

Object Tracking From Multiple Multi-Axis Platforms In Four Dimensions, Theodore A. Teates

Electrical & Computer Engineering Theses & Dissertations

Object handoff in free space requires a sound framework between at least two optical sensors and one object. Previous work developed an algorithm that can determine the ap­ propriate time to initiate handoff of object tracking responsibilities from one optical sensor with an object in view to another optical sensor with the same object in view. In order to maintain persistent tracking of objects in this work, gimbal movements of optical sensors are determined by calculations using the Lagrange method to determine the trackability measures between the moving object and the handoff cone for the appropriate optical sensor. The rotation …

Structured Learning From Heterogeneous Behavior For Social Identity Linkage, Siyuan Liu, Shuhui Wang, Feida Zhu

Research Collection School Of Computing and Information Systems

Social identity linkage across different social media platforms is of critical importance to business intelligence by gaining from social data a deeper understanding and more accurate profiling of users. In this paper, we propose a solution framework, HYDRA, which consists of three key steps: (I) we model heterogeneous behavior by long-term topical distribution analysis and multi-resolution temporal behavior matching against high noise and information missing, and the behavior similarity are described by multi-dimensional similarity vector for each user pair; (II) we build structure consistency models to maximize the structure and behavior consistency on users' core social structure across different platforms, …

Towards City-Scale Mobile Crowdsourcing: Task Recommendations Under Trajectory Uncertainties, Chen Cen, Shih-Fen Cheng, Hoong Chuin Lau, Archan Misra

Research Collection School Of Computing and Information Systems

In this work, we investigate the problem of large-scale mobile crowdsourcing, where workers are financially motivated to perform location-based tasks physically. Unlike current industry practice that relies on workers to manually pick tasks to perform, we automatically make task recommendation based on workers’ historical trajectories and desired time budgets. The challenge of predicting workers’ trajectories is that it is faced with uncertainties, as a worker does not take same routes every day. In this work, we depart from deterministic modeling and study the stochastic task recommendation problem where each worker is associated with several predicted routine routes with probabilities. We …

Cross-Promotion In Social Media: Choosing The Right Allies, Tingting Song, Qian Tang

Research Collection School Of Computing and Information Systems

This paper investigates the strategic use of cross-promotion for content producers in social media. In particular, we study how a producer chooses other producers to cross-promote so as to maximize the expected benefits of them cross-promoting him/her in return. Theories on homophily effect and social influence suggest that cross-promoted producers are more likely to cross-promote the initiator in return when they are in the similar categories or share more common friends and when the initiator has higher status. However, the cross-promotion from producers of different categories and social groups (i.e., share fewer common friends) tend to benefit the initiator more. …

A Hassle-Free Unsupervised Domain Adaptation Method Using Instance Similarity Features, Jianfei Yu, Jing Jiang

Research Collection School Of Computing and Information Systems

We present a simple yet effective unsupervised domain adaptation method that can be generally applied for different NLP tasks. Our method uses unlabeled target domain instances to induce a set of instance similarity features. These features are then combined with the original features to represent labeled source domain instances. Using three NLP tasks, we show that our method consistently out-performs a few baselines, including SCL, an existing general unsupervised domain adaptation method widely used in NLP. More importantly, our method is very easy to implement and incurs much less computational cost than SCL.

An Empirical Study Of Classifier Combination On Cross-Project Defect Prediction, Yun Zhang, David Lo, Xin Xia, Jianling Sun

Research Collection School Of Computing and Information Systems

To help developers better allocate testing and debugging efforts, many software defect prediction techniques have been proposed in the literature. These techniques can be used to predict classes that are more likely to be buggy based on past history of buggy classes. These techniques work well as long as a sufficient amount of data is available to train a prediction model. However, there is rarely enough training data for new software projects. To deal with this problem, cross-project defect prediction, which transfers a prediction model trained using data from one project to another, has been proposed and is regarded as …

Landmark Classification With Hierarchical Multi-Modal Exemplar Feature, Lei Zhu, Jialie Shen, Hai Jin, Liang Xie, Ran Zheng

Research Collection School Of Computing and Information Systems

Landmark image classification attracts increasing research attention due to its great importance in real applications, ranging from travel guide recommendation to 3-D modelling and visualization of geolocation. While large amount of efforts have been invested, it still remains unsolved by academia and industry. One of the key reasons is the large intra-class variance rooted from the diverse visual appearance of landmark images. Distinguished from most existing methods based on scalable image search, we approach the problem from a new perspective and model landmark classification as multi-modal categorization, which enjoys advantages of low storage overhead and high classification efficiency. Toward this …

Why Political Scientists Are Wrong 15% Of The Time, Olga Kosheleva, Vladik Kreinovich

Departmental Technical Reports (CS)

An experimental study has shown that among situations when political scientists claimed that a political outcome was impossible, this outcome actually occurred in 15% of the cases. In this paper, we provide a possible explanation for this empirical fact.

Rotation Lightcurves Of Small Jovian Trojan Asteroids, Linda French, Robert Stephens, Daniel Coley, Lawrence Wasserman, Jennifer Sieben

Linda French

Nonparametric Methods For Doubly Robust Estimation Of Continuous Treatment Effects, Edward Kennedy, Zongming Ma, Matthew Mchugh, Dylan Small

Edward H. Kennedy

Continuous treatments (e.g., doses) arise often in practice, but available causal effect estimators require either parametric models for the effect curve or else consistent estimation of a single nuisance function. We propose a novel doubly robust kernel smoothing approach, which requires only mild smoothness assumptions on the effect curve and allows for misspecification of either the treatment density or outcome regression. We derive asymptotic properties and also discuss an approach for data-driven bandwidth selection. The methods are illustrated via simulation and in a study of the effect of nurse staffing on hospital readmissions penalties.

International Conference On Phonon Scattering In Condensed Matter (Phonons 2015), Thomas Wilson

Thomas E. Wilson

Dr. Thomas E. Wilson, professor of physics, had an abstract accepted for an oral presentation at the 15th International Conference on Phonon Scattering in Condensed Matter (Phonons 2015), held at the University of Nottingham, United Kingdom July 12-17.

Rooted In Hell: Predicting Invasion Rates Of Phragmites Australis, Jacob P. Duncan

Jacob P Duncan

No abstract provided.

Improving Alternate Lignin Catabolite Utilization Of Ligab From Sphingobium Sp. Strain Syk-6 Through Site Directed Mutagenesis, Kevin P. Barry, Erin F. Cohn, Abraham Ngu, Erika A. Taylor

Erika A. Taylor, Ph.D.

Protocatechuate 4,5-dioxygenase (LigAB) catalyzes dioxygenation of multiple lignin derived aromatic compounds—such as protocatechuate (PCA), gallate (GA) and 3-O-methyl gallate (3OMG)—with decreasing proficiency as the molecule size increases. We predicted that phenylalanine-103 of the α subunit (Phe103α) controls substrate specificity through interaction with the C5-funtionality of bound substrates, and mutagenesis would enhance GA and 3OMG catalysis. LigAB with Phe103α mutations (F103 V, F103T and F103H) displayed enhanced catalytic efficiency for dioxygenation of 3OMG, with mutants displaying 12- to 31-fold increases in View the MathML source, making these mutant enzymes more active with 3OMG than its native dioxygenase (DesZ). The F103T and …

Stabilization Of Supported Metal Nanoparticles Using An Ultrathin Porous Shell, X. Liang, J. Li, Miao Yu, C. Mcmurray, J. Falconer, A. Weimer

Miao Yu

No abstract provided.

H2 Separation Using Defect-Free, Inorganic Composite Membranes, Miao Yu, H. Funke, R. Noble, J. Falconer

Miao Yu

No abstract provided.

Adsorption Characteristics Of Diclofenac And Sulfamethoxazole To Graphene Oxide In Aqueous Solution, S.-W. Nam, C. Jung, H. Li, Miao Yu, Joseph Flora, L. Boateng, N. Her, K.-D. Zoh, Yeomin Yoon

Miao Yu

No abstract provided.

Tuning The Underwater Oleophobicity Of Graphene Oxide Coatings Via Uv Irradiation, H. Li, Yi Huang, Y. Mao, W. Xu, Harry Ploehn, Miao Yu

Miao Yu

Ultraviolet (UV) irradiation was utilized to gradually modify the chemistry and structure of graphene oxide (GO) flakes, as confirmed by XPS and AFM. Ultrathin GO coatings/membranes, made of UV-irradiated flakes, showed tunable underwater oleophobicity. UV-treated, superoleophobic GO membranes exhibited excellent antifouling capability for oil/water separation.

Ultra-Thin Microporous–Mesoporous Metal Oxide Films Prepared By Molecular Layer Deposition (Mld), X. Liang, Miao Yu, J. Li, Y.-B. Jiang, A. Weimer

Miao Yu

No abstract provided.

U.S. Drought Monitor, June 30, 2015, Brian Fuchs

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for June 30, 2015 (6/30/15) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

The Geology Of Gökçeada (Çanakkale), Ramazan Sari, Ahmet Türkecan, Mustafa Dönmez, Şahset Küçükefe, Ümit Aydin, Öner Özmen

Bulletin of the Mineral Research and Exploration

The geology and especially the magmatic rocks of Gökçeada, which is the biggest island of Turkey and located at 20 km’s west of Biga Peninsula, constitute the subject of this study. Late Ediacaran/ Early Paleozoic aged Çamlıca metamorphics which crop out with a tectonic uplift in a narrow area in northwest of Gökçeada are the oldest rocks of the island. Early Eocene aged Karaağaç Formation which is formed by submarine fan deposits unconformably overlies Çamlıca metamorphics. As for the Dağiçitepe volcanic member which is formed by rhyolitic lavas, tuff and tuffites emplaced into Karaağaç Formation cutting Çamlıca metamorphics is the …

The Secrets Of Massive Sulfide Deposits On Mid-Ocean Ridges And Küre-Mağaradoruk Copper Deposit, Yilmaz Altun, Huseyin Yilmaz, Ilyas Siner, Fatih Yazar

Bulletin of the Mineral Research and Exploration

Küre region is located in western part of the Pontide tectonic belt. The oldest rocks around Küre are Paleozoic metamorphic rocks constituting “Rhodope-Pontide” continent. Liassic-pre Liassic ophiolites and basaltic volcanics, which form Paleotethys Ocean Floor are situated on “Rhodope-Pontide” continent as Paleotethys Ocean Floor residuals. Massive sulfide deposits in Küre Region are closely associated with pre Liassic – Liassic basaltic volcanics and intercalating black shale. These deposits are considered to have formed during hydrothermal mineralization processes when basaltic volcanism had stopped and defined as “Black Smoker” today. Massive sulfide bodies in Mağaradoruk copper deposits are lens shaped. Although ore lenses …

Orogenic Gold Prospectivity Mapping Using Geospatial Data Integration, Region Of Saqez, Nw Of Iran, Alireza Almasi̇, Alireza Jafari̇rad, Peyman Afzal, Mana Rahi̇mi̇

Bulletin of the Mineral Research and Exploration

The aim of this study is to map orogenic gold prospecting areas in the region of Saqez, NW of Iran. In order to achieve this task geological, geochemical and airborne geophysical data are analyzed and integrated using index overlay and fuzzy logic methods. Geological map of Saqez (1:100.000 scale) is used to assign lithological weights based on their favorability for hosting orogenic Au mineralization. Also a fault density map is produced and assigned based on the structural map which is included in the geological map. For preparing geochemical evidence maps, data from 535 stream sediment samples are examined using Number-Size …

Element Enrichments In Bituminous Rocks, Hatildağ Field, Göynük/Bolu, Ali Sari, Murad Çi̇lsal, Şükrü Koç

Bulletin of the Mineral Research and Exploration

In this study, element enrichments in bituminous rocks (bituminous shale, bituminous claystone and bituminous marl) of the Kabalar Formation in the Hatıldağ field in Göynük town of the city of Bolu are investigated and their economic potential is discussed with regard to being a mineral deposit. Element analysis was conducted with ICP-ES (ICP emission spectrometry) and ICP-MS (ICP mass spectrometry) techniques. Organic carbon content in rocks was analyzed with Rock-Eval VI device. In pyrolysis analysis conducted on a total of 28 bituminous rocks that are collected from the Kayalık Dere measured stratigraphic section, Corg minimum and maximum are 0.40 %wt …

Refinement Of The Reverse Extrusion Test To Determine The Two Consistency Limits, Kamil Kayabalı, Ayla Bulut Üstün, Ali Özkeser

Bulletin of the Mineral Research and Exploration

Liquid limit (LL) and plastic limit (PL) are the two most commonly used index properties of fine-grained soils. They have been used in not only classification of soils but also in correlation with certain engineering properties. Therefore, they have been subjected to numerous researches since they were first introduced by Atterberg in 1911. While their mechanisms were well defined in many codes and they have been in use for decades, criticisms often arose pertinent to the uncertainties inherent to them. Incredible amount of effort has been exerted to invent more rational testing methods in place of both the Casagrande’s cup …

Brief Note On Neogene Volcanism İn Kemalpaşa–Torbali Basin (İzmi̇r), Fikret Göktaş

Bulletin of the Mineral Research and Exploration

No abstract provided.

Halloysite Intercalation Of Northwest Anatolia, Bülent Başara, Saruhan Saklar

Bulletin of the Mineral Research and Exploration

In this study, the representative samples were taken from the halloysite deposits located in Çanakkale-Balıkesir regions in the northwestern Anatolia. At first, the dehydration temperatures of the samples were determined after the sample preparation and characterization studies. It was found that halloysite samples start to loose their interlayer waters at 50°C and goes up to 70°C. The intercalation studies were carried out on the dehydrated samples by using ethylene glycol, potassium acetate, dimethyl sulfoxide and formamide. Although the negative results by ethylene glycol and potassium acetate, the satisfactory results were obtained by dimethyl sulfoxide and formamide. It is undertood that …

Benthic Foraminiferal Biostratigraphy Of Malatya Oligo-Miocene Succession (Eastern Taurids, Eastern Turkey), Fatma Gedi̇k

Bulletin of the Mineral Research and Exploration

The benthic foraminiferal biostratigraphy of Oligo-Miocene aged Muratlı and Petekkaya formations which crop out over wide regions around Akçadağ town, west of Malatya province in Eastern Taurids were revealed in this study. Systematical sampling was carried out in measured stratigraphical sections in four locations in order to perform stratigraphical and paleontological investigations. Benthic foraminifera taken from 182 hard rock samples were defined and three biozones were determined as; SBZ 21-22, belonging to Oligocene (Rupelian - Early Chattian), SBZ 23 (Late Chattian) and SBZ 25 belonging to Lower Miocene in shallow marine deposits in the region. It was stated that the …

Geological Factors Controlling Potential Of Lignite Beds Within The Danişmen Formation In The Thrace Basin, Doğan Peri̇nçek, Nurdan Atas, Seyma Karatut, Esra Erensoy

Bulletin of the Mineral Research and Exploration

This project has been conducted for the General Directorate of Turkish Coal Enterprise. The aim of this study is to understand lignite potential of the basin. Subsurface data ( including numerous wells and several seismic lines) provided by TPAO, MTA and TKİ were used. Structure and thickness maps of Oligocene-Miocene-Pliocene units prepared for the basin. Purpose of this work is to understand economical values of lignite seam beds interbedding in the Danişmen Formation (Oligocene-Early Miocene). For this purpose, from bottom to top following maps were prepared: Structural map of the top Osmancık (Oligocene) Formation, thickness map of the Danişmen Formation, …

Investigation Of Irrigation Water Quality Of Surface And Groundwater In The Kütahya Plain, Turkey, Berihu Abadi Berhe, Mehmet Çeli̇k, Uğur Erdem Dokuz

Bulletin of the Mineral Research and Exploration

The Kütahya plain is one of the plains in Kütahya/Turkey, where drinking, agricultural and industrial water supplies are highly dependent on groundwater resources. The local population largely depends on water from alluvial shallow aquifer waters and some on the Felent and Porsuk rivers. Appraisal of surface and groundwater quality is extremely important to make sure the sustainable use of it for drinking, agricultural, and industrial purposes. The chemical quality of surface and groundwater of Kütahya plain has been studied in detail in order to have better understanding of potential water quality. A total of 21 groundwater samples and 6 surface …

Obliczenia Rozprzestrzeniania Się Pyłu Drobnego W Powietrzu Atmosferycznym Z Wykorzystaniem Dyfuzyjnych Modeli Gaussa, Robert Oleniacz, Mateusz Rzeszutek

Robert Oleniacz

The chapter presents a comparison of results of modelling concentrations of fine dust (suspended dust PM10) in the air with the use of two diffusion models: the Gaussian plume model (used commonly in Poland), and the Gaussian puff model CALPUFF (used significantly less frequently). It indicates discrepancies in obtained results of calculations for point emitters taking into consideration three dimensional options (with the following heights: 20, 40 and 60 m and diameters of respectively: 1.0, 1.5 and 2.0 m). For particular variants, errors were visualised, resulting from use of the simple Gaussian plume model in place of the advanced CALPUFF …