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2020

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Imposter Syndrome In Academia, Emily Faulconer Dec 2020

Imposter Syndrome In Academia, Emily Faulconer

Publications

Defining Imposter Syndrome

  • Despite evidence, fears being exposed as not having the expertise expected in your role.
  • Despite evidence, feels like a fraud.
  • Attributes success to luck, masking skills, or the work of other people.
  • Internalizes failure and over-focus on mistakes.
  • Over-estimates abilities of others, underestimates amount of work those individuals put in.


Getting Published In Sotl, Emily Faulconer Dec 2020

Getting Published In Sotl, Emily Faulconer

Publications

Navigating the publication process can be confusing and frustrating if you don't know what to expect. This session will outline and discuss successful approaches from manuscript generation to post-publication promotion of your work.

We will explore how to identify potential dissemination venues, factors to consider when vetting a journal (readership, impact, access, etc.), editorial processes, and how to strategically get your message across to editors and viewers. From search engine optimization to graphical abstracts and social media, what steps can you take the get the most out of your publication? How can you navigate the "failure points" (growth opportunities) in …


Qcm Sensor Arrays, Electroanalytical Techniques And Nir Spectroscopy Coupled To Multivariate Analysis For Quality Assessment Of Food Products, Raw Materials, Ingredients And Foodborne Pathogen Detection: Challenges And Breakthroughs†, David K. Bwambok, Noureen Siraj, Samantha Macchi, Nathaniel E. Larm, Gary A. Baker, Rocío L. Pérez, Caitlan E. Ayala, Charuksha Walgama, David Pollard, Jason D. Rodriguez, Souvik Banerjee, Brianda Elzey, Isiah M. Warner, Sayo O. Fakayode Dec 2020

Qcm Sensor Arrays, Electroanalytical Techniques And Nir Spectroscopy Coupled To Multivariate Analysis For Quality Assessment Of Food Products, Raw Materials, Ingredients And Foodborne Pathogen Detection: Challenges And Breakthroughs†, David K. Bwambok, Noureen Siraj, Samantha Macchi, Nathaniel E. Larm, Gary A. Baker, Rocío L. Pérez, Caitlan E. Ayala, Charuksha Walgama, David Pollard, Jason D. Rodriguez, Souvik Banerjee, Brianda Elzey, Isiah M. Warner, Sayo O. Fakayode

Faculty Publications

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. Quality checks, assessments, and the assurance of food products, raw materials, and food ingredients is critically important to ensure the safeguard of foods of high quality for safety and public health. Nevertheless, quality checks, assessments, and the assurance of food products along distribution and supply chains is impacted by various challenges. For instance, the development of portable, sensitive, low-cost, and robust instrumentation that is capable of real-time, accurate, and sensitive analysis, quality checks, assessments, and the assurance of food products in the field and/or in the production line in a food …


Larval Movement And Survival Of Helicoverpa Zea (Boddie) In Seed Blends Of Non-Bt And Bt Maize Containing Agrisure Viptera® Trait: Implications For Resistance Management, M. Dimase, I. Oyediran, S. Brown, W. Walker, J. Guo, W. Yu, Y. Zhang, J. Chen, Z. Wen, F. Huang Dec 2020

Larval Movement And Survival Of Helicoverpa Zea (Boddie) In Seed Blends Of Non-Bt And Bt Maize Containing Agrisure Viptera® Trait: Implications For Resistance Management, M. Dimase, I. Oyediran, S. Brown, W. Walker, J. Guo, W. Yu, Y. Zhang, J. Chen, Z. Wen, F. Huang

Faculty Publications

A seed blend refuge has been used to host susceptible insects for Bt maize insect resistance management (IRM) in the U.S. Maize Belt. One major concern in the use of seed blends is that larval movement among non-Bt and Bt plants could cause additional mortalities of susceptible insects. To address this concern, three caged-field trials were conducted to evaluate larval movement and survival of the corn earworm, Helicoverpa zea (Boddie), in eight seed blends of Cry1Ab/Vip3A maize with 0–30% non-Bt refuges. Each plot consisted of five rows and 21 plants in each row. Each plot was infested on the ear …


Computer-Based And Paper-And-Pencil Tests: A Study In Calculus For Stem Majors, Lawrence Smolinsky, Brian D. Marx, Gestur Olafsson, Yanxia A. Ma Dec 2020

Computer-Based And Paper-And-Pencil Tests: A Study In Calculus For Stem Majors, Lawrence Smolinsky, Brian D. Marx, Gestur Olafsson, Yanxia A. Ma

Faculty Publications

Computer-based testing is an expanding use of technology offering advantages to teachers and students. We studied Calculus II classes for science, technology, engineering, and mathematics majors using different testing modes. Three sections with 324 students employed: paper-and-pencil testing, computer-based testing, and both. Computer tests gave immediate feedback and allowed multiple submissions and pooling. Paper-and-pencil tests (PPTs) required work and explanation allowing inspection of high cognitive demand tasks. Each test mode used the strength of its method. Students were given the same lecture by the same instructor on the same day and the same homework assignments and due dates. The design …


Sequential Predictors For Delay Compensation For Discrete Time Systems With Time-Varying Delays, Frédéric Mazenc, Michael Malisoff, Indra Narayana Sandilya Bhogaraju Dec 2020

Sequential Predictors For Delay Compensation For Discrete Time Systems With Time-Varying Delays, Frédéric Mazenc, Michael Malisoff, Indra Narayana Sandilya Bhogaraju

Faculty Publications

We study time-varying linear discrete time systems with uncertainties and time-varying measurement delays, whose outputs are perturbed by uncertainty. We build sequential predictors, which ensure input-to-state stability with respect to the uncertainties and which can be constructed using output values under arbitrarily long delays. The number of required sequential predictors is any upper bound for the delay in our feedback stabilized closed loop systems. We illustrate our work in a digital control problem for a continuous time system that is discretized through sampling.


Review Of The Validity And Feasibility Of Image-Assisted Methods For Dietary Assessment, Christoph Höchsmann, Corby K. Martin Dec 2020

Review Of The Validity And Feasibility Of Image-Assisted Methods For Dietary Assessment, Christoph Höchsmann, Corby K. Martin

Clinical Research Faculty Publications

Accurately quantifying dietary intake is essential to understanding the effect of diet on health and evaluating the efficacy of dietary interventions. Self-report methods (e.g., food records) are frequently utilized despite evident inaccuracy of these methods at assessing energy and nutrient intake. Methods that assess food intake via images of foods have overcome many of the limitations of traditional self-report. In cafeteria settings, digital photography has proven to be unobtrusive and accurate and is the method of choice for assessing food provision, plate waste, and food intake. In free-living conditions, image capture of food selection and plate waste via the user’s …


On Two Families Of Funk-Type Transforms, M. Agranovsky, B. Rubin Dec 2020

On Two Families Of Funk-Type Transforms, M. Agranovsky, B. Rubin

Faculty Publications

We consider two families of Funk-type transforms that assign to a function on the unit sphere the integrals of that function over spherical sections by planes of fixed dimension. Transforms of the first kind are generated by planes passing through a fixed center outside the sphere. Similar transforms with interior center and with center on the sphere itself we studied in previous publications. Transforms of the second kind, or the parallel slice transforms, correspond to planes that are parallel to a fixed direction. We show that the Funk-type transforms with exterior center express through the parallel slice transforms and the …


Hypervalent Iodine Compounds With Halogen-Containing And Phosphinate Ligands, Yakun Cao Dec 2020

Hypervalent Iodine Compounds With Halogen-Containing And Phosphinate Ligands, Yakun Cao

Chemistry Theses and Dissertations

In modern organic chemistry, hypervalent (HV) iodine(III) compounds have been used widely as oxidizing agents but applications of λ3-iodanes in polymer and material chemistry is still underexplored. In the first project, a new series of heterocyclic HV iodine(III) compounds with I–Cl bonds and various substituents at the N atom were synthesized and successfully employed in the synthesis of highly branched polymers when added to mixtures of styrene and 1,4-divinylbenzene containing 10–80 mol% of the divinyl crosslinker, or even pure crosslinker. HV iodine(III) also can be utilized for polymer modification. HV iodine(III) compounds with fluorine-containing ligands (F, CF3 …


Proportional Voting Based Semi-Unsupervised Machine Learning Intrusion Detection System, Yang G. Kim, Ohbong Kwon, John Yoon Dec 2020

Proportional Voting Based Semi-Unsupervised Machine Learning Intrusion Detection System, Yang G. Kim, Ohbong Kwon, John Yoon

Publications and Research

Feature selection of NSL-KDD data set is usually done by finding co-relationships among features, irrespective of target prediction. We aim to determine the relationship between features and target goals to facilitate different target detection goals regardless of the correlated feature selection. The unbalanced data structure in NSL-KDD data can be relaxed by Proportional Representation (PR). However, adopting PR would deny the notion of winner-take-all by attracting a majority of the vote and also provide a fairly proportional share for any grouping of like-minded data. Furthermore, minorities and majorities would get a fair share of power and representation in data structure …


Atherosclerosis: Pathology, Role Of Sd-Ldl, Particle Size Characterization Of Sd-Ldl With Multiangle Light Scattering, Akshay Sudhakar Ukey Dec 2020

Atherosclerosis: Pathology, Role Of Sd-Ldl, Particle Size Characterization Of Sd-Ldl With Multiangle Light Scattering, Akshay Sudhakar Ukey

Masters Theses

Atherosclerosis is an inflammatory disease due to the accumulation of lipids in the inner wall of arteries. As per the report of Center of Diseases Control and Prevention (CDC), 1 in every 4 deaths is due to heart diseases each year. Atherosclerosis occurs when artery walls harden by the buildup of cholesterol, forming multiple atherosclerotic plaques within the aorta (4). Out of the modern medicines available to control cholesterol, statin is amongst the foremost widely used because it is both safe and effective in lowering high risk patients (9). However, usage of high statins dosage typically leads to some mild …


A Spitzer Survey Of Deep Drilling Fields To Be Targeted By The Vera C. Rubin Observatory Legacy Survey Of Space And Time, M. Lacy, J. A. Surace, D. Farrah, K. Nyland, J. Afonso, W. N. Brandt, D. L. Clements, C. D. P. Lagos, C. Maraston, J. Pforr, A. Sajina, M. Sako, M. Vaccari, G. Wilson, D. R. Ballantyne, Wayne A. Barkhouse, R. Brunner, R. Cane, T. E. Clarke, M. Cooper, A. Cooray, G. Covone, C. D'Andrea, A. E. Evrard, H. C. Ferguson, J. Frieman, V. Gonzalez-Perez, R. Gupta, E. Hatziminaoglou, J. Huang, P. Jagannathan, M. J. Jarvis, K. M. Jones, A. Kimball, C. Lidman, L. Lubin, L. Marchetti, P. Martini, R. G. Mcmahon, S. Mei, H. Messias, E. J. Murphy, J. A. Newman, R. Nichol, R. P. Norris, S. Oliver, I. Perez-Fournon, W. M. Peters, M. Pierre, E. Polisensky, G. T. Richards, S. E. Ridgway, H. J. A. Röttgering, N. Seymour, R. Shirley, R. Somerville, M. A. Strauss, N. Suntzeff, P. A. Thorman, E. Van Kampen, A. Verma, R. Wechsler, W. M. Wood-Vasey Dec 2020

A Spitzer Survey Of Deep Drilling Fields To Be Targeted By The Vera C. Rubin Observatory Legacy Survey Of Space And Time, M. Lacy, J. A. Surace, D. Farrah, K. Nyland, J. Afonso, W. N. Brandt, D. L. Clements, C. D. P. Lagos, C. Maraston, J. Pforr, A. Sajina, M. Sako, M. Vaccari, G. Wilson, D. R. Ballantyne, Wayne A. Barkhouse, R. Brunner, R. Cane, T. E. Clarke, M. Cooper, A. Cooray, G. Covone, C. D'Andrea, A. E. Evrard, H. C. Ferguson, J. Frieman, V. Gonzalez-Perez, R. Gupta, E. Hatziminaoglou, J. Huang, P. Jagannathan, M. J. Jarvis, K. M. Jones, A. Kimball, C. Lidman, L. Lubin, L. Marchetti, P. Martini, R. G. Mcmahon, S. Mei, H. Messias, E. J. Murphy, J. A. Newman, R. Nichol, R. P. Norris, S. Oliver, I. Perez-Fournon, W. M. Peters, M. Pierre, E. Polisensky, G. T. Richards, S. E. Ridgway, H. J. A. Röttgering, N. Seymour, R. Shirley, R. Somerville, M. A. Strauss, N. Suntzeff, P. A. Thorman, E. Van Kampen, A. Verma, R. Wechsler, W. M. Wood-Vasey

Physics Faculty Publications

The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will observe several Deep Drilling Fields (DDFs) to a greater depth and with a more rapid cadence than the main survey. In this paper, we describe the ‘DeepDrill’ survey, which used the Spitzer Space Telescope Infrared Array Camera (IRAC) to observe three of the four currently defined DDFs in two bands, centred on 3.6 and 4.5 μm. These observations expand the area that was covered by an earlier set of observations in these three fields by the Spitzer Extragalactic Representative Volume Survey (SERVS). The combined DeepDrill and …


Fostering Place-Based Education And Inclusion In The Classroom Through School Grades, Karina Gonzales-Smith Dec 2020

Fostering Place-Based Education And Inclusion In The Classroom Through School Grades, Karina Gonzales-Smith

Student Projects for Graduate Degrees

Place-based education expands the space where students learn by connecting to the outdoors, such as garden-based lessons that are dynamic and have a multidisciplinary curriculum. Students are given the opportunity to learn healthy behaviors, environmentally sustainable practices, and life skills. Inclusion is fostered by giving teachers and students agency in the learning experience. The purpose of this study was to view garden education through the lens of place-based education, critical pedagogy, and social justice. To this end, a lesson plan template was created to facilitate future development of garden-based lessons characterized by responsive curriculum and alignment with academic standards. A …


Phonetic Algorithm Performance, Aaron Schneidereit Dec 2020

Phonetic Algorithm Performance, Aaron Schneidereit

Senior Honors Projects

AARON SCHNEIDEREIT (Computer Science BS) Phonetic Algorithm Performance Sponsors: Noah Daniels (Computer Science and Statistics) Phonetic Algorithms are used for classifying words based on their pronunciation. These algorithms are used in many text-to-speech technologies and spell-checkers to ensure that a word can be correctly recognized despite minor spelling/pronunciation errors. The process of encoding a word to its phonetic surname is known as Phonetic Matching. Since 1918, there have only been a handful of phonetic algorithms that have been created. The main three algorithms that other phonetic algorithms are built from are Soundex, New York State Identification and Intelligence System (NYSIIS), …


Emotion Regulation And N2 Amplitude During A Go/Nogo Task: An Erp Study, Emily Tolar Dec 2020

Emotion Regulation And N2 Amplitude During A Go/Nogo Task: An Erp Study, Emily Tolar

Psychological Science Undergraduate Honors Theses

Emotion regulation is how people respond to and manage their reactions to life experiences, including resolving conflict between variable responses. Past research has associated the N2, an event-related potential associated with resolving response conflict, with both emotion regulation and negative emotion. However, to the best of our knowledge, no one has assessed if different emotion-regulation strategies are differentially associated with N2 activation. To assess this question, we conducted an EEG study with 147 participants. Participants completed the Cognitive Emotion Regulation Questionnaire (CERQ) and then played the go/no-go game as their EEG data was collected. The relationship between N2 amplitude and …


Structured Data Mining Networks, Time Series, And Time Series Of Networks, Lin Zhang Dec 2020

Structured Data Mining Networks, Time Series, And Time Series Of Networks, Lin Zhang

Legacy Theses & Dissertations (2009 - 2024)

The rate at which data is generated in modern applications has created an unprecedented demand for novel methods to effectively and efficiently extract insightful patterns. Methods aware of known domain-specific structure in the data tend to be advantageous. In particular, a joint temporal and networked view of observations offers a holistic lens to many real-world systems. Example domains abound: activity of social network users, gene interactions over time, a temporal load of infrastructure networks, and others. Existing analysis and mining approaches for such data exhibit limited quality and scalability due to their sensitivity to noise, missing observations, and the need …


Gut Microbiota And The Development Of Type 2 Diabetes, Janet Ryan Dec 2020

Gut Microbiota And The Development Of Type 2 Diabetes, Janet Ryan

Nursing | Senior Theses

This paper explores the question: Can interventions focusing on healing the gut microbiome of a prediabetic patient prevent or delay the onset of type 2 diabetes? Diabetes is a major health problem that is becoming the biggest epidemic of the 21st century. Efforts to derail the progression of disrupted blood glucose metabolism are often futile leaving patients frustrated with a lifelong burden of disease management. Recent studies suggest that collectively the gut microbiome acts as an endocrine organ and that injury to this “organ” can lead to dysfunctional glucose regulation. A comprehensive literature review revealed that further studies are …


English Language Learners In The Dance Classroom: Building Bridges To Rigorous Language Acquisition, Breegan Kearney Dec 2020

English Language Learners In The Dance Classroom: Building Bridges To Rigorous Language Acquisition, Breegan Kearney

Master's Theses

The purpose of this study was to investigate several aspects of instructing English Learners (ELs) in the dance classroom. The researcher created three essential questions to guide her research: Q1 What specific strategies are currently being utilized by dance teachers to support English Learners in accessing dance-specific language? Q2 What are the opportunities for and barriers to incorporating these strategies? Q3 Does this teaching process have any effect on student engagement in dance class? Thirty dance educators discussed their experiences instructing English Learners in dance content in the form of a digital survey, and rated common strategies for ELs based …


Missing In Action: Locating The Body In Interdisciplinary Studies, Ann Lenore Moradian Dec 2020

Missing In Action: Locating The Body In Interdisciplinary Studies, Ann Lenore Moradian

Master's Theses

This research project relied on the use of interdisciplinary literature, surveys and interviews to explore the prevalence of the human body and its movement across a variety of disciplines other than movement-based practices, and also to explore perspectives of movement experts regarding the knowledge, skills, and capacities they believed might be related to their practice-based work. In other words, what do movement practitioners and movement experts know, and who cares? The materials gathered were analyzed with the aim of understanding the range of possibilities for future work, and identifying areas of potential discourse, engagement, or collaboration across disciplines. The outcomes …


Fostering Resilience: Integrating Positive Character Strengths With Dance Making Skills To Help Young Children Cope With Adversity, Laura Vormwald Dec 2020

Fostering Resilience: Integrating Positive Character Strengths With Dance Making Skills To Help Young Children Cope With Adversity, Laura Vormwald

Master's Theses

The purpose of this study was to investigate how involvement in a choreography unit focused on positive character strengths could increase confidence in strengths that foster resilience. Research shows that building resilience is the key to helping children overcome adversity and trauma. Both qualitative and quantitative methods were used to answer the three research questions in this study. Q1 Does involvement in dance making build students’ character strengths? Q2 Which character strengths are best developed through dance making? Q3 Which inspirations for dance making relate most thoroughly to the selected character strengths? The research instruments used were a pre and …


Teaching Responsively During Covid-19: Learning How To Model, Modeling How To Learn, Lindsay M. Keazer Dec 2020

Teaching Responsively During Covid-19: Learning How To Model, Modeling How To Learn, Lindsay M. Keazer

Education Faculty Publications

A teacher educator describes learning to teach responsively through the Covid-19 pandemic; shifting focus from secretly struggling to manage the upset of work/life balance, to living out the challenges in community with her students. By sharing struggles transparently rather than concealing, she found opportunities to connect with students about the complex challenges they were facing. This process was one of learning how to model empathetic education, and simultaneously modeling to future teachers how to learn to enact responsive pedagogies through unexpected challenges in teaching.


On Subdiagonal Rational Pade Approximations And The Brenner-Thomee Approximation Theorem For Operator Semigroups, Frank Neubrander, Koray Ozer, Lee Windsperger Dec 2020

On Subdiagonal Rational Pade Approximations And The Brenner-Thomee Approximation Theorem For Operator Semigroups, Frank Neubrander, Koray Ozer, Lee Windsperger

Faculty Publications

The computational powers of Mathematica are used to prove polynomial identities that are essential to obtain growth estimates for subdiagonal rational Pade approximations of the exponential function and to obtain new estimates of the constants of the Brenner-Thomee Approximation Theorem of Semigroup Theory.


Confronting Wicked Crypto: Wicked Problems, Encryption Policy, And Exceptional Access Technology, Kevin Nicholas Kredit Dec 2020

Confronting Wicked Crypto: Wicked Problems, Encryption Policy, And Exceptional Access Technology, Kevin Nicholas Kredit

Masters Theses

Public debate has resumed on the topic of exceptional access (EA), which refers to alternative means of decryption intended for law enforcement use. The resumption of this debate is not a renege on a resolute promise made at the end of the 1990s “crypto war”; rather, it represents a valid reassessment of optimal policy in light of changing circumstances. The imbalance between privacy, access, and security in the context of constantly changing society and technology is a wicked problem that has and will continue to evade a permanent solution. As policymakers consider next steps, it is necessary that the technical …


The Brigade Combat Team (Bct): A Revolution In Organizational Structure, Adam Davis Dec 2020

The Brigade Combat Team (Bct): A Revolution In Organizational Structure, Adam Davis

Muskie School Capstones and Dissertations

This paper explores the U.S. Army’s force reorganization around the Brigade Combat Team (BCT), which began in 2002. The BCT shifted how various army units interacted by changing the echelon at which different types of units report to a single commander, essentially creating self-sufficient units of about 2,500 soldiers instead of the previous self-sufficient units of about 15,000 soldiers. This paper utilizes existing organizational theories and research to better understand the implications for such a dramatic change in organizational structure. It contextualizes the army’s reorganization by applying the Rational Actor, Political, and Bureaucratic Models outlined in Essence of Decision by …


Analysis Of The Structure Of Salaries Of Public Sector Workers For Strategic Planning Purposes An Analytical Study In The General Body Of Groundwater, Raqeeb R. S. Al-Madhidi, Abdulsalam Lafta Saeed Dec 2020

Analysis Of The Structure Of Salaries Of Public Sector Workers For Strategic Planning Purposes An Analytical Study In The General Body Of Groundwater, Raqeeb R. S. Al-Madhidi, Abdulsalam Lafta Saeed

Journal of Economics and Administrative Sciences

The research discusses the problem of salaries in the public sector in terms of the process of analyzing its structure and the possibility of benefiting from the information provided by the analysis process for the strategic planning process, and the General Authority for Groundwater has been adopted and one of the formations of the Ministry of Water Resources, which is centrally funded, to represent the salary structure of its employees (1117) employees be a field of research, as the salary structure in it was analyzed for the period between (2014-2019) using the quantitative approach to analysis and by relying on …


A Meta-Analysis Of Gender Gap On The Fci In High School And College Introductory Physics Courses In The Us And International Countries., Polin Yadak Dec 2020

A Meta-Analysis Of Gender Gap On The Fci In High School And College Introductory Physics Courses In The Us And International Countries., Polin Yadak

Doctoral Dissertations

This meta-analysis synthesized research on gender gap in the Force Concept Inventory (FCI). The main goal of the present meta-analysis was to identify the moderator variables that mediate effect size differences. Furthermore, the statistical significance of the average effect sizes was investigated. The inclusion criteria for the meta-analysis resulted in 22 empirical research articles that studied gender gap and reported the number of male and female students in the study. The included articles reported multiple studies; therefore, there were 34 studies on pretest and 43 studies on the posttest FCI. The average effect size for the pretests was 0.62 and …


An Analysis Of The Yearly Dynamic Change Relationship Between Working Memory Ability And Mathematics Achievement Of K-5 Students Using The Grimm Et Al. (2012) Extensions Of The Multivariate Latent Difference Score Models, Wenyan (Emma) Jiang Erzincanli Dec 2020

An Analysis Of The Yearly Dynamic Change Relationship Between Working Memory Ability And Mathematics Achievement Of K-5 Students Using The Grimm Et Al. (2012) Extensions Of The Multivariate Latent Difference Score Models, Wenyan (Emma) Jiang Erzincanli

Doctoral Dissertations

The purpose of this study was to conduct a secondary data analysis to examine the dynamic change relationship between working memory and mathematics over time, and to address the working memory training program issue by examining this dynamic change relationship across four different groups of students to provide evidence on how to help different types of students improve their mathematics achievement. To achieve this purpose, the ECLS-K:2011 longitudinal data set and Grimm, An, McArdle, Zonderman, and Resnick (2012) extension of the multivariate latent difference score models were used for the secondary data analysis. Working memory ability and mathematics achievement were …


Towards Theoretically Understanding Why Sgd Generalizes Better Than Adam In Deep Learning, Pan Zhou, Jiashi Feng, Chao Ma, Caiming Xiong, Steven C. H. Hoi, Weinan E Dec 2020

Towards Theoretically Understanding Why Sgd Generalizes Better Than Adam In Deep Learning, Pan Zhou, Jiashi Feng, Chao Ma, Caiming Xiong, Steven C. H. Hoi, Weinan E

Research Collection School Of Computing and Information Systems

It is not clear yet why ADAM-alike adaptive gradient algorithms suffer from worse generalization performance than SGD despite their faster training speed. This work aims to provide understandings on this generalization gap by analyzing their local convergence behaviors. Specifically, we observe the heavy tails of gradient noise in these algorithms. This motivates us to analyze these algorithms through their Lévy-driven stochastic differential equations (SDEs) because of the similar convergence behaviors of an algorithm and its SDE. Then we establish the escaping time of these SDEs from a local basin. The result shows that (1) the escaping time of both SGD …


Algorithms And Hardness Results For Computing Cores Of Markov Chains, Ali Ahmadi, Krishnendu Chatterjee, Amir Kafshdar Goharshady, Tobias Meggendorfer, Roodabeh Safavi, Dorde Zikelic Dec 2020

Algorithms And Hardness Results For Computing Cores Of Markov Chains, Ali Ahmadi, Krishnendu Chatterjee, Amir Kafshdar Goharshady, Tobias Meggendorfer, Roodabeh Safavi, Dorde Zikelic

Research Collection School Of Computing and Information Systems

Given a Markov chain M = (V,v0,δ), with state space V and a starting state v0, and a probability threshold ϵ, an ϵ-core is a subset C of states that is left with probability at most ϵ. More formally, C ⊆V is an ϵ-core, iff P reach(V\C) ≤ ϵ. Cores have been applied in a wide variety of verification problems over Markov chains, Markov decision processes, and probabilistic programs, as a means of discarding uninteresting and low-probability parts of a probabilistic system and instead being able to focus on the states that are likely to be encountered in a real-world …


Segmentation Method For Face Modelling In Thermal Images, Albar Albar, Hendrick Hendrick, Rahmat Hidayat Dec 2020

Segmentation Method For Face Modelling In Thermal Images, Albar Albar, Hendrick Hendrick, Rahmat Hidayat

Knowledge Engineering and Data Science

Face detection is mostly applied in RGB images. The object detection usually applied the Deep Learning method for model creation. One method face spoofing is by using a thermal camera. The famous object detection methods are Yolo, Fast Region Based Convolutional Neural Networks (RCNN), Faster RCNN, SSD, and Mask RCNN. We proposed a segmentation Mask RCNN method to create a face model from thermal images. This model was able to locate the face area in images. The dataset was established using 1600 images. The images were created from direct capturing and collecting from the online dataset. The Mask RCNN was …