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Dissertations / Theses on the topic 'Science maps'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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1

Shen, Yang. "Soft Shadow Mip-Maps." Thesis, The University of Utah, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10158459.

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<p> This document introduces the Soft Shadow Mip-Maps technique, which consists of three methods for overcoming the fundamental limitations of filtering-oriented soft shadows. Filtering-oriented soft shadowing techniques filter shadow maps with varying filter sizes determined by desired penumbra widths. Different varieties of this approach have been commonly applied in interactive and real-time applications. Nonetheless, they share some fundamental limitations. First, soft shadow filter size is not always guaranteed to be the correct size for producing the right penumbra width based on the lig
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2

Saadé, Elie S. "Triangulating contours in large maps." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0003/MQ29773.pdf.

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3

Tardiff, Seth Ronald 1981. "Self-organizing event maps." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/17982.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.<br>Includes bibliographical references (leaves 61-62).<br>To take further steps along the path toward true artificial intelligence, systems must be built that are capable of learning about the world around them through observation and explanation. These systems should be flexible and robust in the style of the human brain and little precompiled knowledge should be given initially. As a step toward achieving this lofty goal, this thesis presents the self-organizing event map (SOE
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Cyr, William (William B. ). "Attacks on multilinear maps." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/100302.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2015.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Title as it appears in MIT Commencement Exercises program, June 5, 2015: Mmultilinear maps. Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 43-44).<br>In this thesis, I explore the current multilinear map candidates and attacks against them. This involves analyzing the th
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5

Mathur, Moses. "Exploration and extensions of detail maps." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=81362.

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In this thesis, we explore "detail maps", a technique that is a combination of texture compression and texture synthesis. We decompose a given input texture into its high and low frequency components and, at runtime, recombine these components to generate a visually acceptable reconstruction of the original texture. Detail maps use less memory than the original texture, and they can be implemented in either software or graphics hardware. Our specific contributions are: the elimination of seam artifacts; showing how detail maps can be used for texture transfer and volume textures; and de
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Fidelholtz, Estanislao L. "Cross-domain self organizing maps." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/41603.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006.<br>Includes bibliographical references (leaves 59-60).<br>In this thesis, I present a method for organizing and relating events represented in two domains: the transition-space domain, which focuses on change and the trajectory-space domain, which focuses on movement along paths. Particular events are described in both domains, and each description is fed into a self organizing map. After these self organizing maps have been trained with enough events, the maps are clustered ind
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7

Marjanović, Matthew J. (Matthew Josef). "Learning maps between sensorimotor systems." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/11417.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.<br>Includes bibliographical references (p. 55-56).<br>by Matthew J. Marjanovíc.<br>M.S.
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8

Kim, Young-Soo. "A study of concept maps regarding the nature of science by preservice secondary science teachers /." free to MU campus, to others for purchase, 1998. http://wwwlib.umi.com/cr/mo/fullcit?p9901250.

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9

DARIRA, RAVI SURESH. "A DESIGN FRAMEWORK FOR PROPERTY MAPS." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1143665177.

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10

Van, Horn R. Brooks III. "Procedural Reduction Maps." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14484.

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Procedural textures and image textures are commonplace in graphics today, finding uses in such places as animated movies and video games. Unlike image texture maps, procedural textures typically suffer from minification aliasing. I present a method that, given a procedural texture on a surface, automatically creates an anti-aliased version of the procedural texture. The new procedural texture maintains the original textures details, but reduces minification aliasing artifacts. This new algorithm creates an image pyramid similar to MIP-Maps to represent the texture. Whereas a MIP-Map stores per
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11

Ekström, Ola, and Jonas Olsfelt. "Self-organizing maps : en atlas över informationsrymden." Thesis, Högskolan i Borås, Institutionen Biblioteks- och informationsvetenskap / Bibliotekshögskolan, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-16791.

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The purpose of this thesis is to examine how semantic relations in a document collection can be visualized with a Kohonen self-organizing map. It can be seen as a map of the information space which can be used to support information retrieval. The study makes a comparison of the possible differences between a map that is based on morphologically unprocessed text and a map where the text has been lemmatized. The text that is being processed is the definitions of all the existing instances in WordNet of a random selection of indexing terms from the Times-collection. The purpose is to see if m
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12

Terry, Shaun. "The effects of concept maps on student knowledge of earth science." Montana State University, 2011. http://etd.lib.montana.edu/etd/2011/terry/TerryS0811.pdf.

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Students at my high school have scored their lowest on the Earth science portion of the state proficiency test over the past several years. Because this is a topic I teach to the entire freshman class in my school, my capstone project was dedicated to increasing these test scores. My project involved adding concept mapping to all material assigned during two units of the Earth science unit. Data collected to identify the impact of the concept map came from student journal entries, interviews, and surveys as well as from tests that included multiple-choice questions modeled on the state profici
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13

Couturier, Martin Marcel. "Disambiguating words with self-organizing maps." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/66413.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 77).<br>Today, powerful programs readily parse English text; understanding, however, is another matter. In this thesis, I take a step toward understanding by introducing CLARIFY, a program that disambiguates words. CLARIFY identifies patterns in observed word contexts, and uses these patterns to select the optimal word sense for any specific situation. CLARIFY learns successful patterns by manipu
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14

Jagnow, Robert Carl 1976. "Virtual sculpting with haptic displacement maps." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/86603.

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15

Hemachandra, Sachithra Madhawa. "Learning semantic maps from natural language." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/97757.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2015.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from PDF student-submitted version of thesis.<br>Includes bibliographical references (pages 185-193).<br>As robots move into human-occupied environments, the need for effective mechanisms to enable interactions with humans becomes vital. Natural language is a flexible, intuitive medium that can enable such interacti
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Park, Edward(Edward S. ). M. Eng Massachusetts Institute of Technology. "Refining inferred road maps using GANs." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/123037.

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This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2019<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 63-64).<br>Mapping road networks is both expensive and labor-intensive. A variety of automated mapping approaches have been proposed in recent years, but these schemes often produce maps that are messy, error-prone, or visuall
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17

Sim, Robert. "On visual maps and their automatic construction." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84842.

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This thesis addresses the problem of automatically constructing a visual representation of an unknown environment that is useful for robotic navigation, localization and exploration. There are two main contributions. First, the concept of the visual map is developed, a representation of the visual structure of the environment, and a framework for learning this structure is provided. Second, methods for automatically constructing a visual map are presented for the case when limited information is available about the position of the camera during data collection.<br>The core concept of th
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Luo, Jixi. "Curvature Maps for Rendering using Enhanced Ambient and Diffuse Illumination." Thesis, University of Gävle, Department of Industrial Development, IT and Land Management, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-7119.

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<p>For highly diffuse rendering, some materials like snow are commonly accomplished through the use of simplified local illumination models for ambient and diffuse light. In reality, however, for a given point on a surface, the incident light is not only contributed from directional light sources, but also from backscattering from nearby surfaces. To account for this effect, a new technology has been developed, using Curvature Maps for Rendering. This rendering algorithm integrates normal mapping with curvature mapping into a local illumination model to solve the previous mentioned problem. In
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19

Su, Sara Lee 1982. "Perceptual picture emphasis using texture power maps." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/30181.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2005.<br>Includes bibliographical references (p. 65-70).<br>Applying selective emphasis to photographs is a critical aspect of the visual design process. There is evidence from psychophysics that contrast in texture is a key contributor to saliency in an image, yet unlike other low-level perceptual features, texture cannot be directly modified with existing image-processing software. We present a post-processing technique to subtly change the salience of regions of an image by modifying
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20

Gerstle, Jeremy S. (Jeremy Scott) 1977. "Building local maps for robust visual navigation." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/86708.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.<br>Includes bibliographical references (p. 75-76).<br>by Jeremy S. Gerstle.<br>M.Eng.
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21

Moreno-Fortuny, Gabriel. "Generating Radiosity Maps on the GPU." Thesis, University of Waterloo, 2005. http://hdl.handle.net/10012/1081.

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Global illumination algorithms are used to render photorealistic images of 3D scenes taking into account both direct lighting from the light source and light reflected from other surfaces in the scene. Algorithms based on computing radiosity were among the first to be used to calculate indirect lighting, although they make assumptions that work only for diffusely reflecting surfaces. The classic radiosity approach divides a scene into multiple patches and generates a linear system of equations which, when solved, gives the values for the radiosity leaving each patch. This process can req
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22

Miller, Owen Daniel. "MAPS calorimetry for a future linear collider." Thesis, University of Birmingham, 2011. http://etheses.bham.ac.uk//id/eprint/1537/.

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The International Linear Collider (ILC) is intended to be a new high precision electron-positron collider operating at the TeV scale. The studies detailed within this thesis deal primarily with the development of Monolithic Active Pixel Sensors (MAPS) which could be used as the sensitive component of an ILC Electromagnetic Calorimeter (ECAL). These include simulations of a MAPS ECAL to investigate pixel saturation as a function of reset time, and energy resolution for single electrons. The energy resolutionσ (E)/E was found to be (0.1147±0.0004)/E\(^{1/2}\)(GeV\(^{1/2}\)). The remaining studie
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23

Chibbani, Nazih. "Computational aspects of order-preserving maps (fixed point property)." Thesis, University of Ottawa (Canada), 2003. http://hdl.handle.net/10393/26459.

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The ordered sets field is an important part of the ongoing mathematical, algorithmic and combinatorics research. This young field identifies and addresses many unsolved problems, a considerable group of which were proven (NP). " Characterizing the finite ordered sets with fixed point property" is among those open unsolved problems. It was originally introduced and described by Rival (1984); and was later demonstrated to be NP-complete by Williamson. Since then, several researchers worked and published on the subject, describing a variety of algorithms and techniques to address and solve aspect
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24

Kekeh, Charles. "Buttons as representations of links in variable resolution maps." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=24016.

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This thesis presents two applications of binary tries. Trie structures are used as indexes to store and query spatial data on secondary storage. This thesis deals with point and segment data. Maps are treated as a series of segments in the plane, and links between these maps and other maps or pictures are treated as point data.<br>Maps are stored as Zoom tries on secondary storage. Zoom tries allow efficient accesses to the maps at different levels of resolution. They also allow efficient implementations of range queries. Furthermore, this trie organization provides good data compression. We i
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Künzle, Philippe. "Building topological maps for robot navigation using neural networks." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82266.

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Robots carrying tasks in an unknown environment often need to build a map in order to be able to navigate. One approach is to create a detailed map of the environment containing the position of obstacles. But this option can use a large amount of memory, especially if the environment is large. Another approach, closer to how people build a mental map, is the topological map. A topological map contains only places that are easy to recognize (landmarks) and links them together.<br>In this thesis, we explore the issue of creating a topological map from range data. A robot in a simulated en
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Mendoza-Schrock, Olga L. "Diffusion Maps and Transfer Subspace Learning." Wright State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=wright1503964976467066.

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27

Zeng, Yong Xiang. "Transforming use case maps to the core scenario model representation." Thesis, University of Ottawa (Canada), 2005. http://hdl.handle.net/10393/27097.

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Scenarios describe system functionalities and, when supplemented with performance annotations, provide a basis for performance analysis. This thesis presents a Core Scenario Model (CSM), which includes common scenario information in the Use Case Maps (UCM) notation and in UML 2.0 activity diagrams and interaction diagrams. The intent is to enable automatic transformations from a given scenario model to CSM, and then from a CSM model to performance models, hence enabling performance analysis early in the development process. CSM captures scenarios, performance, and deployment information, and i
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Bourque, Eric. "On the automated selection of viewpoints for image-based maps." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0005/MQ44131.pdf.

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29

Ragothaman, Sonya Shruthi. "Path Planning for Autonomous Ground Vehicles Using GNSS and Cellular LTE Signal Reliability Maps and GIS 3-D Maps." Thesis, University of California, Riverside, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10935619.

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<p> In this thesis, path planning for an autonomous ground vehicle (AGV) in an urban environment is considered. The following problem is considered. starting from an initial location, the AGV desires to reach a final location by taking the shortest distance, while minimizing the AGVs position estimation error and guaranteeing that the AGVs position estimation uncertainty is below a desired threshold. The AGV is assumed to be equipped with receivers capable of producing pseudodange measurements on Global Navigation Satellite System (GNSS) satellites and cellular long-term evolution (LTE) towers
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30

Buschka, Pär. "An Investigation of Hybrid Maps for Mobile Robots." Doctoral thesis, Örebro University, Department of Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-204.

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<p>Autonomous robots typically rely on internal representations of the environment, or maps, to plan and execute their tasks. Several types of maps have been proposed in the literature, and there is general consensus that different types have different advantages and limitations, and that each type is more suited to certain tasks and less to others. Because of these reasons, it is becoming common wisdom in the field of mobile robotics to use hybrid maps that integrate several representations, usually of different types. Hybrid maps provide scalability and multiple views, allowing for instance
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31

Ramadas, Manikantan. "Detecting Anomalous Network Traffic With Self-Organizing Maps." Ohio University / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1049472005.

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32

Lattanzi, Riccardo. "Radiofrequency detector coil performance maps for parallel MRI applications." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/36187.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006.<br>Includes bibliographical references (p. 67-70).<br>Parallel MRI techniques allow acceleration of MR imaging beyond traditional speed limits. In parallel MRI, arrays of radiofrequency (RF) detector coil arrays are used to perform some degree of spatial encoding which complements traditional encoding using magnetic field gradients. As the acceleration factor increases, coil design becomes critical to the overall image quality. The quality of a design is commonly judged on how it c
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Hassine, Jameleddine. "Feature interaction filtering and detection with use case maps and LOTOS." Thesis, University of Ottawa (Canada), 2001. http://hdl.handle.net/10393/9419.

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Telephony systems have evolved from the Plain Old Telephony System providing only the basic functionality of making phone calls, to sophisticated systems in which many features have been introduced, providing network subscribers more control on the call establishment process. However, these facilities are confronted with a major obstacle known as the feature interaction problem. A feature interaction occurs when at least one feature is prevented from performing its functionality or when the system functions incorrectly due to the presence of features. In the first part of the thesis, we presen
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Diamantas, Sotirios Ch. "Biological and metric maps applied to robot homing." Thesis, University of Southampton, 2010. https://eprints.soton.ac.uk/161057/.

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Navigation is at the heart of today’s mobile robotic systems. The use of landmarks for the guidance of autonomous systems is an essential part of the process. Shape, size, and colour are some of the properties of the landmarks. In this work biological and other methods have been developed for navigating a simulated mobile robot back to its home. Optical flow which is not a property of the landmarks but a property of the camera motion, has been used for building topological maps which are used to localise a robot. The advantage of this approach is that there is no need for storing or retrieving
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35

Peterson, Sadie Nadine. "Thinking logs, concept maps and regulatory checklists: the effect of metacognition on science literacy." Montana State University, 2012. http://etd.lib.montana.edu/etd/2012/peterson/PetersonS0812.pdf.

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At St. John the Evangelist, students showed a disparity between how they perform and how they think they perform. In order to determine whether instruction of what learning is and metacognitive reading strategies would improve science literacy and confidence in science; students were given instruction in different learning styles and reading strategies for use in and out of the classroom. Learning logs during reading, concept maps to assess knowledge and regulatory checklists were used to determine if student learning improved. Reading comprehension was measured before and during treatment. St
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Adluru, Nagesh. "Techniques for Extracting Contours and Merging Maps." Diss., Temple University Libraries, 2008. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/24684.

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Computer and Information Science<br>Ph.D.<br>Understanding machine vision can certainly improve our understanding of artificial intelligence as vision happens to be one of the basic intellectual activities of living beings. Since the notion of computation unifies the concept of a machine, computer vision can be understood as an application of modern approaches for achieving artificial intelligence, like machine learning and cognitive psychology. Computer vision mainly involves processing of different types of sensor data resulting in "perception of machines". Perception of machines plays a ver
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Mueller, Derek Norton. "Clouds, graphs, and maps distant reading and disciplinary imagination /." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2009. http://wwwlib.umi.com/cr/syr/main.

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Zampetakis, Emmanouil. "Contraction maps and applications to the analysis of iterative algorithms." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/108973.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 101-107).<br>The increasing interest of the scientific community, and especially machine learning, on non-convex problems, has made non-convex optimization one of the most important and challenging areas of our days. Despite of this increasing interest too little is known from a theoretical point of view. The main reason for this is that the existing and well understood techniques used for th
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Barua, Rajeev K. (Rajeev Kumar). "Maps : a compiler-managed memory system for software-exposed architectures." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/37194.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.<br>Includes bibliographical references (p. 155-161).<br>Microprocessors must exploit both instruction-level parallelism (ILP) and memory parallelism for high performance. Sophisticated techniques for ILP have boosted the ability of modern-day microprocessors to exploit ILP when available. Unfortunately, improvements in memory parallelism in microprocessors have lagged behind. This thesis explains why memory parallelism is hard to exploit in microprocessors and advocate bank-expose
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Leon, Kimberly A. "Chatbots and 3D maps : evaluating information retrieval across multiple mediums." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/119532.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 57-59).<br>In this thesis, we present data retrieval accomplished through two extremes of affordance. First, a natural language understanding (NLU) driven chatbot, which has minimal affordance -- the only visual cue users ar
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Ort, Moses Teddy. "MapLite : autonomous navigation in rural environments without detailed prior maps." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/128346.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, February, 2020<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 69-73).<br>Most autonomous vehicle systems currently rely on high-definition prior maps in order to localize and navigate in their environment. In this work, we present MapLite: a one-click autonomous navigation system capable of piloting a vehicle to an arbitrary desired destination point given only a sparse publicly available topometric map (from OpenStreetMap). The onboard sensors
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Charfi, Leila. "Formal modeling and test generation automation with Use Case Maps and LOTOS." Thesis, University of Ottawa (Canada), 2001. http://hdl.handle.net/10393/9138.

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This thesis addresses the problem of formal modelling and test generation, from system requirements represented in the form of Use Case Maps. In the first part of our thesis, we present an existent development methodology based on Use Case Maps for the design of the requirements and on LOTOS and SDL for the formal modeling of telecommunication systems. We follow this methodology for the formal specification and validation of a telephony system using LOTOS. In the second part of the thesis, we develop a method for the automatic generation of LOTOS scenarios from Use Case Maps called Ucm2LotosTe
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Amyot, Daniel. "Specification and validation of telecommunications systems with use case maps and LOTOS." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ66115.pdf.

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LITTON, JENNIFER GROMMON. "HEURISTIC DESIGN ALGORITHMS AND EVALUATION METHODS FOR PROPERTY MAPS." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin981488752.

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Chawdhary, Adit. "DevSOM: Developmental Learning in Self Organizing Feature Maps." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1623164888614564.

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46

Abounadi, Jinane 1966. "Stochastic approximation for non-expansive maps : application to Q-learning algorithms." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/10033.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.<br>Includes bibliographical references (leaves 129-133).<br>by Jinane Abounadi.<br>Ph.D.
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Ong, Thian-Huat. "Language- and domain-independent knowledge maps: A statistical phrase indexing approach." Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/290042.

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Global economy increases the need for multilingual systems, while each domain has a large repository of knowledge, particularly explicit knowledge usually captured in text. The speed of textual information being produced has exceeded the speed at which a person can process the information, so an automated approach to alleviate the information overload problem is needed. Unlike structured data in databases, unstructured text cannot be readily understood and processed by computers. This dissertation aims to create a language- and domain-independent approach to automatically generating hierarchic
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Jaroszkiewicz, Rafal. "Fast Extraction of BRDFs and Material Maps from Images." Thesis, University of Waterloo, 2003. http://hdl.handle.net/10012/1169.

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The bidirectional reflectance distribution function has a four dimensional parameter space and such high dimensionality makes it impractical to use it directly in hardware rendering. When a BRDF has no analytical representation, common solutions to overcome this problem include expressing it as a sum of basis functions or factorizing it into several functions of smaller dimensions. This thesis describes factorization extensions that significantly improve factor computation speed and eliminate drawbacks of previous techniques that overemphasize low sample values. The improved algorith
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49

Pieterse, Vreda. "Topic Maps for Specifying Algorithm Taxonomies : a case Study using Transitive Closure Algorithms." Thesis, University of Pretoria, 2016. http://hdl.handle.net/2263/59307.

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The need for storing and retrieving knowledge about algorithms is addressed by creating a specialised information management scheme. This scheme is operationalised in terms of a topic map of algorithms. Metadata are specified for the adequate and precise description of algorithms. The specification describes both the data elements (called attributes) that are relevant to algorithms as well as the relationship of attributes to one another. In addition, a process is formalised for gathering data about algorithms and capturing it in the proposed topic map. The proposed process model and
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50

Shahaf, Dafna. "Automatic Generation of Issue Maps: Structured, Interactive Outputs for Complex Information Needs." Research Showcase @ CMU, 2012. http://repository.cmu.edu/dissertations/210.

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When information is abundant, it becomes increasingly difficult to fit nuggets of knowledge into a single coherent picture. Complex stories spaghetti into branches, side stories, and intertwining narratives; search engines, our most popular navigational tools, are limited in their capacity to explore such complex stories. We propose a methodology for creating structured summaries of information, which we call metro maps. Our proposed algorithm generates a concise structured set of documents that maximizes coverage of salient pieces of information. Most importantly, metro maps explicitly show t
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