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- All Subjects: artificial intelligence
- Creators: Arizona State University
- Status: Published
Description
In the last years of the twentieth century, while the narrative of women in other Latin American countries has received critical attention, Bolivian women's narrative has been widely ignored. The fact that the voice of Bolivian women in Latin American feminist discourse is rarely discussed in Latin American criticism is enough to justify the present study. This work focuses on three prominent Bolivian writers: Gaby Vallejos, Giovanna Rivero Santa Cruz, and Erika Bruzonic. The short stories of these three authors are characterized by accentuating certain telluric features revealed in the background of their feminine/feminist narratives. At the same time, based on the American and European feminist literary critique, this work analyzes the feminine/feminist themes mounted in the narrative of these authors. Gaby Vallejos, with a cinematic style, chronicles the life and customs of the "valluno" context, building a mosaic of different voices in dialogue. Her topics revolve around binaries: life-death, and pain and pleasure, voicing condemnation for a patriarchal society. Ericka Bruzonic deals with women and identity, memory and the breaking of lineage as an imposing structure. Her themes are built around the cosmopolitism of "paceña" urban life, and her voice transgresses the binomials established by a patriarchal society. Finally Giovanna Rivero Santa Cruz takes the life and customs of the Santa Cruz and the Guarani culture and her plots weave these elements reaching for myths and taboos, involving the reader into her stories. In this manner, her narrative makes an incursion into the conscious and unconscious realm of the readers questioning their wealth of moral and social values, their notions of heterosexuality, and sexual taboos. The three writers, with different narrative styles yet dialogical, narrate various experiences of women from different regions, social classes, ages, education, and sexual orientations. Our authors give high value to the word and the body embedded in the culture, thereby affirming their woman's voice as Bolivians and their literary presence in the context of Latin American literature.
ContributorsLopez, Norma (Author) / Urioste-Ascorra, Carmen (Thesis advisor) / Tompkins, Cynthia (Committee member) / Rosales, Jesus (Committee member) / Arizona State University (Publisher)
Created2013
Description
The rapid escalation of technology and the widespread emergence of modern technological equipments have resulted in the generation of humongous amounts of digital data (in the form of images, videos and text). This has expanded the possibility of solving real world problems using computational learning frameworks. However, while gathering a large amount of data is cheap and easy, annotating them with class labels is an expensive process in terms of time, labor and human expertise. This has paved the way for research in the field of active learning. Such algorithms automatically select the salient and exemplar instances from large quantities of unlabeled data and are effective in reducing human labeling effort in inducing classification models. To utilize the possible presence of multiple labeling agents, there have been attempts towards a batch mode form of active learning, where a batch of data instances is selected simultaneously for manual annotation. This dissertation is aimed at the development of novel batch mode active learning algorithms to reduce manual effort in training classification models in real world multimedia pattern recognition applications. Four major contributions are proposed in this work: $(i)$ a framework for dynamic batch mode active learning, where the batch size and the specific data instances to be queried are selected adaptively through a single formulation, based on the complexity of the data stream in question, $(ii)$ a batch mode active learning strategy for fuzzy label classification problems, where there is an inherent imprecision and vagueness in the class label definitions, $(iii)$ batch mode active learning algorithms based on convex relaxations of an NP-hard integer quadratic programming (IQP) problem, with guaranteed bounds on the solution quality and $(iv)$ an active matrix completion algorithm and its application to solve several variants of the active learning problem (transductive active learning, multi-label active learning, active feature acquisition and active learning for regression). These contributions are validated on the face recognition and facial expression recognition problems (which are commonly encountered in real world applications like robotics, security and assistive technology for the blind and the visually impaired) and also on collaborative filtering applications like movie recommendation.
ContributorsChakraborty, Shayok (Author) / Panchanathan, Sethuraman (Thesis advisor) / Balasubramanian, Vineeth N. (Committee member) / Li, Baoxin (Committee member) / Mittelmann, Hans (Committee member) / Ye, Jieping (Committee member) / Arizona State University (Publisher)
Created2013
Description
The increasing popularity of Twitter renders improved trustworthiness and relevance assessment of tweets much more important for search. However, given the limitations on the size of tweets, it is hard to extract measures for ranking from the tweet's content alone. I propose a method of ranking tweets by generating a reputation score for each tweet that is based not just on content, but also additional information from the Twitter ecosystem that consists of users, tweets, and the web pages that tweets link to. This information is obtained by modeling the Twitter ecosystem as a three-layer graph. The reputation score is used to power two novel methods of ranking tweets by propagating the reputation over an agreement graph based on tweets' content similarity. Additionally, I show how the agreement graph helps counter tweet spam. An evaluation of my method on 16~million tweets from the TREC 2011 Microblog Dataset shows that it doubles the precision over baseline Twitter Search and achieves higher precision than current state of the art method. I present a detailed internal empirical evaluation of RAProp in comparison to several alternative approaches proposed by me, as well as external evaluation in comparison to the current state of the art method.
ContributorsRavikumar, Srijith (Author) / Kambhampati, Subbarao (Thesis advisor) / Davulcu, Hasan (Committee member) / Liu, Huan (Committee member) / Arizona State University (Publisher)
Created2013
Description
Las personas públicas de mujeres fuertes mexicanas generalmente se definen como desafiantes y contrarias a los roles sociales generalmente aceptados de las mujeres sumisas. Dichas personas públicas exigen atención y buscan incluirse en la cultura popular. Sin embargo, cuando se analizan mediante los rubros de la teoría queer, se revelan arquetipos heternormativos. Esta tesis examina cronológicamente la obra de tres cronistas mexicanos de los siglos XX y XXI, Salvador Novo, Carlos Monsiváis y Sara Sefchovich, analizando su retrato de mujeres fuertes que ocupan sitios urbanos públicos en la Ciudad de México. Se investigan los efectos sociales elitistas de las imágenes públicas de mujeres fuertes, revelando restricciones patriarcales de mujeres en espacios públicos y construcciones subsecuentes de personas públicas como exóticas y cosificadas, asimismo facilitando interacciones con una sociedad sumamente masculinista y machista. La falta de agencialidad social real se revela cuando el patriarcado se reafirma, a pesar de la índole disconforme de las mujeres retratadas. Los constructos de familia y de masculinidad exigen la existencia tanto del padre y del esposo ausentes como del hipermacho y de la acompañante mujer sumisa limitada a sitios privados. El retrato de mujeres fuertes en la obra analizada desnaturaliza la imagen de domesticidad, señalando que las mujeres mexicanas salen del hogar para ocupar sitios públicos en la Ciudad de México. Como la normalización del constructo de familia se cuestiona, la teoría queer se utiliza en una manera innovadora para analizar dichos retratos de mujeres fuertes y agencialidad sociopolítica.
ContributorsHolcombe, William Daniel (Author) / Foster, David William (Thesis advisor) / Tompkins, Cynthia (Committee member) / Urioste-Azcorra, Carmen (Committee member) / Arizona State University (Publisher)
Created2013
Description
Objective of this thesis project is to build a prototype using Linear Temporal Logic specifications for generating a 2D motion plan commanding an iRobot to fulfill the specifications. This thesis project was created for Cyber Physical Systems Lab in Arizona State University. The end product of this thesis is creation of a software solution which can be used in the academia and industry for research in cyber physical systems related applications. The major features of the project are: creating a modular system for motion planning, use of Robot Operating System (ROS), use of triangulation for environment decomposition and using stargazer sensor for localization. The project is built on an open source software called ROS which provides an environment where it is very easy to integrate different modules be it software or hardware on a Linux based platform. Use of ROS implies the project or its modules can be adapted quickly for different applications as the need arises. The final software package created and tested takes a data file as its input which contains the LTL specifications, a symbols list used in the LTL and finally the environment polygon data containing real world coordinates for all polygons and also information on neighbors and parents of each polygon. The software package successfully ran the experiment of coverage, reachability with avoidance and sequencing.
ContributorsPandya, Parth (Author) / Fainekos, Georgios (Thesis advisor) / Dasgupta, Partha (Committee member) / Lee, Yann-Hang (Committee member) / Arizona State University (Publisher)
Created2013
Description
Linear Temporal Logic is gaining increasing popularity as a high level specification language for robot motion planning due to its expressive power and scalability of LTL control synthesis algorithms. This formalism, however, requires expert knowledge and makes it inaccessible to non-expert users. This thesis introduces a graphical specification environment to create high level motion plans to control robots in the field by converting a visual representation of the motion/task plan into a Linear Temporal Logic (LTL) specification. The visual interface is built on the Android tablet platform and provides functionality to create task plans through a set of well defined gestures and on screen controls. It uses the notion of waypoints to quickly and efficiently describe the motion plan and enables a variety of complex Linear Temporal Logic specifications to be described succinctly and intuitively by the user without the need for the knowledge and understanding of LTL specification. Thus, it opens avenues for its use by personnel in military, warehouse management, and search and rescue missions. This thesis describes the construction of LTL for various scenarios used for robot navigation using the visual interface developed and leverages the use of existing LTL based motion planners to carry out the task plan by a robot.
ContributorsSrinivas, Shashank (Author) / Fainekos, Georgios (Thesis advisor) / Baral, Chitta (Committee member) / Burleson, Winslow (Committee member) / Arizona State University (Publisher)
Created2013
Description
Answer Set Programming (ASP) is one of the most prominent and successful knowledge representation paradigms. The success of ASP is due to its expressive non-monotonic modeling language and its efficient computational methods originating from building propositional satisfiability solvers. The wide adoption of ASP has motivated several extensions to its modeling language in order to enhance expressivity, such as incorporating aggregates and interfaces with ontologies. Also, in order to overcome the grounding bottleneck of computation in ASP, there are increasing interests in integrating ASP with other computing paradigms, such as Constraint Programming (CP) and Satisfiability Modulo Theories (SMT). Due to the non-monotonic nature of the ASP semantics, such enhancements turned out to be non-trivial and the existing extensions are not fully satisfactory. We observe that one main reason for the difficulties rooted in the propositional semantics of ASP, which is limited in handling first-order constructs (such as aggregates and ontologies) and functions (such as constraint variables in CP and SMT) in natural ways. This dissertation presents a unifying view on these extensions by viewing them as instances of formulas with generalized quantifiers and intensional functions. We extend the first-order stable model semantics by by Ferraris, Lee, and Lifschitz to allow generalized quantifiers, which cover aggregate, DL-atoms, constraints and SMT theory atoms as special cases. Using this unifying framework, we study and relate different extensions of ASP. We also present a tight integration of ASP with SMT, based on which we enhance action language C+ to handle reasoning about continuous changes. Our framework yields a systematic approach to study and extend non-monotonic languages.
ContributorsMeng, Yunsong (Author) / Lee, Joohyung (Thesis advisor) / Ahn, Gail-Joon (Committee member) / Baral, Chitta (Committee member) / Fainekos, Georgios (Committee member) / Lifschitz, Vladimir (Committee member) / Arizona State University (Publisher)
Created2013
Description
RESUMEN Las diferentes manifestaciones del folclore, canciones, leyendas, mitos, creencias y supersticiones, siempre han sido una fuente o parte de la literatura global. Hoy día muchos autores, inclusive los chicanos, regresan a los temas folclóricos a través de sus obras literarias o coleccionan simplemente las tradiciones orales con el propósito de mantener la cultura folclórica de la región. Estudiando a diferentes autores que utilizan el folclore en la literatura de Nuevo México, se puede observar cierto reconocimiento de las tradiciones españolas, las mexicanas y las méxicoamericanas. El escritor nuevomexicano Jim Sagel y el folclorista también nuevomexicano Nasario García han contribuido al desarrollo literario chicano vía llamar la atención al público con sus obras llenas de la historia antigua, las tradiciones y el folclore los cuales han mantenido la gente en la región de Río Grande. Para el estudio del folclore nuevomexicano, el método utilizado tiene un carácter multidisciplinario donde se aplican como base los principios críticos de la que llamamos la Escuela Folclórica Méxicosudoesteña. Es decir, varias teorías folclóricas que se han desarrollado a lo largo del siglo XX, así como varios principios de la semiótica y la teoría de la oralidad, constituyen este armazón teórico para verificar el significado folclórico de los textos analizados y establecer las contribuciones de los folcloristas escogidos. Respecto al género literario, este estudio comparativo se dedica al análisis de unos cuentos literarios, originalmente escritos, y unos cuentos transcritos desde el modo oral. Se analizan los cuentos de Sagel así como algunos poemas suyos arraigados en el folclore y tres colecciones de cuentos orales recopilados por García en la región Río Puerco. Durante el análisis e interpretación con base en las teorías de la Escuela Folclórica Méxicosudoesteña y unas adicionales, se confirmó el origen español de la mayoría de las tradiciones y las raíces del lenguaje nuevomexicano, y se sacaron las conclusiones sobre la función del folclore en la literatura chicana. Como resultado de este estudio del folclore nuevomexicano, los folcloristas contemporáneos (autores y coleccionistas) retoman las tradiciones todavía existentes (españolas, mexicanas, indígenas) para mantener la memoria y validar el folclore de las regiones bajo estudio, creando una literatura con base en las historias orales.
ContributorsCordan, Elena (Author) / Hernández Gutiérrez, Manuel De Jesús (Thesis advisor) / De Urioste Azcorra, Carmen (Committee member) / Volek, Emil (Committee member) / Arizona State University (Publisher)
Created2012
Description
This thesis introduces the Model-Based Development of Multi-iRobot Toolbox (MBDMIRT), a Simulink-based toolbox designed to provide the means to acquire and practice the Model-Based Development (MBD) skills necessary to design real-time embedded system. The toolbox was developed in the Cyber-Physical System Laboratory at Arizona State University. The MBDMIRT toolbox runs under MATLAB/Simulink to simulate the movements of multiple iRobots and to control, after verification by simulation, multiple physical iRobots accordingly. It adopts the Simulink/Stateflow, which exemplifies an approach to MBD, to program the behaviors of the iRobots. The MBDMIRT toolbox reuses and augments the open-source MATLAB-Based Simulator for the iRobot Create from Cornell University to run the simulation. Regarding the mechanism of iRobot control, the MBDMIRT toolbox applies the MATLAB Toolbox for the iRobot Create (MTIC) from United States Naval Academy to command the physical iRobots. The MBDMIRT toolbox supports a timer in both the simulation and the control, which is based on the local clock of the PC running the toolbox. In addition to the build-in sensors of an iRobot, the toolbox can simulate four user-added sensors, which are overhead localization system (OLS), sonar sensors, a camera, and Light Detection And Ranging (LIDAR). While controlling a physical iRobot, the toolbox supports the StarGazer OLS manufactured by HAGISONIC, Inc.
ContributorsSu, Shih-Kai (Author) / Fainekos, Georgios E (Thesis advisor) / Sarjoughian, Hessam S. (Committee member) / Artemiadis, Panagiotis K (Committee member) / Arizona State University (Publisher)
Created2012
Description
This dissertation analyzes three films from Mexico, Spain, and Argentina--Kilómetro 31, El orfanato, and Aparecidos (2007)--and their interplay with the historicism that has traditionally served as the default referent for "reality" in Western narrative. While grounding my approach in temporal critique, I borrow from deconstruction, psychoanalysis, and queer theory to explore ways in which ghosts and the rhetorical figure of the family are manipulated in each national imaginary as a strategy for negotiating volatility within symbolic order: a tactic that can either naturalize or challenge normative discourses. As a literary and cinematic trope, ghosts are particularly useful vehicles for the exploration of national imaginaries and the dominant or competing cultural attitudes towards a country's history, and thus, the articulation of a present political reality. The rhetorical figure of the family is also pivotal in this process as a mechanism for expressing national allegories, for articulating generational anxieties about a nation's relationship with its history, and for organizing societies and social subjects as such, interpellating them into or excluding them from national imaginaries according to its grammar/logic. The proposed trajectory through these films will help facilitate a study of the potential of these rhetorical figures to either reinscribe or question two of the most fundamental processes that go into the cartography of ideology: the imposition of (a) time and the negotiation of social subjectivity within it. Competing political narratives may use any number of rhetorical strategies to position themselves in time to promote their agendas while continuing to reinforce the overall framework that determines the parameters of what is visible, and thus debatable. As temporal anomalies who are defined by their (in)visibility, ghosts can be used to either reinforce this framework or they can be used to articulate alternative relationships to time, and consequently, other political possibilities. Ghosts, families, and children are especially volatile rhetorical figures because of their potential to expose the mechanisms of societal organization--the construction of social subjects through their relationship to the time and the families of which they are presumably products--as negotiable processes rather than self-evident truths.
ContributorsSt-Georges, Charles (Author) / Foster, David W (Thesis advisor) / Urioste, Carmen (Committee member) / Tompkins, Cynthia (Committee member) / Arizona State University (Publisher)
Created2013