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- Genre: Academic theses
- Genre: Poetry
- Creators: Liu, Huan
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
Automating aspects of biocuration through biomedical information extraction could significantly impact biomedical research by enabling greater biocuration throughput and improving the feasibility of a wider scope. An important step in biomedical information extraction systems is named entity recognition (NER), where mentions of entities such as proteins and diseases are located within natural-language text and their semantic type is determined. This step is critical for later tasks in an information extraction pipeline, including normalization and relationship extraction. BANNER is a benchmark biomedical NER system using linear-chain conditional random fields and the rich feature set approach. A case study with BANNER locating genes and proteins in biomedical literature is described. The first corpus for disease NER adequate for use as training data is introduced, and employed in a case study of disease NER. The first corpus locating adverse drug reactions (ADRs) in user posts to a health-related social website is also described, and a system to locate and identify ADRs in social media text is created and evaluated. The rich feature set approach to creating NER feature sets is argued to be subject to diminishing returns, implying that additional improvements may require more sophisticated methods for creating the feature set. This motivates the first application of multivariate feature selection with filters and false discovery rate analysis to biomedical NER, resulting in a feature set at least 3 orders of magnitude smaller than the set created by the rich feature set approach. Finally, two novel approaches to NER by modeling the semantics of token sequences are introduced. The first method focuses on the sequence content by using language models to determine whether a sequence resembles entries in a lexicon of entity names or text from an unlabeled corpus more closely. The second method models the distributional semantics of token sequences, determining the similarity between a potential mention and the token sequences from the training data by analyzing the contexts where each sequence appears in a large unlabeled corpus. The second method is shown to improve the performance of BANNER on multiple data sets.
ContributorsLeaman, James Robert (Author) / Gonzalez, Graciela (Thesis advisor) / Baral, Chitta (Thesis advisor) / Cohen, Kevin B (Committee member) / Liu, Huan (Committee member) / Ye, Jieping (Committee member) / Arizona State University (Publisher)
Created2013
Description
Chris Miller's Souvenirs of Sleep is as serious as it is whimsical, if this is a possibility. The "Museum of the Zoo-real" may be an equally appropriate title as animals are often in performance. In this visual and spiritual investigation, childhood, dream, and the loss of a mother to suicide are the currents. Miller's work is informed by the cinema of Werner Herzog, Andrei Tarkovsky, Robert Bresson and beyond. Miller believes in the power of implication. The poems begin with intense focus, but are often in the business of expansion. Souvenirs of Sleep is a journey toward sense-making, a search for language that might allow it.
ContributorsMiller, Christopher (Author) / Dubie, Norman (Thesis advisor) / Hogue, Cynthia (Committee member) / Ball, Sally (Committee member) / Arizona State University (Publisher)
Created2013
Description
A collection of poems that explore what it means to be from the Atomic City-- a city built atop cleared-out rural communities in East Tennessee during World War II, and with the sole and secretive purpose of enriching uranium for the atomic bomb. The poems look back to the more isolated Appalachian culture of previous generations, discovering the identity rifts caused by such massive and rushed development. In trying to understand the poet's own cultural inheritance of both nuclear weaponry and an Appalachian hardness, the poems begin to meditate on inhabitation. They ask what it means to live in a country, a local community, a body. The poems travel far beyond the Atomic City's limits, incorporating characters that live, in some sense, at the edge of a community. As he crosses the Atlantic, the Spanish poet Jiménez wonders if either sound or vision are more trustworthy tools for perception; an aging grandmother in Tennessee realizes that she still "drives" her younger body in her dreams; an American woman becomes aroused after touring the killing fields in Cambodia; and the prophet of Oak Ridge, who supposedly predicted the Manhattan Project, considers how his baby daughter has become a thing after death. The various voices show the poet grappling with her own guilt over Hiroshima, and ultimately attempt to understand the limits of both grief and love, how one inherits a tragedy.
ContributorsSams, Sara (Author) / Hogue, Cynthia (Thesis advisor) / Ball, Sally (Committee member) / Dubie, Norman (Committee member) / Arizona State University (Publisher)
Created2013
Description
Ranging in subject from a Tuareg festival outside Timbuktu to the 1975 "Battle of the Sexes" race at Belmont track to a Mississippi classroom in the Delta flood plains, the poems in The Body Snatcher's Complaint explore the blurring of self hood, a feeling of foreignness within one's own physical experience of the world, in the most intimate and global contexts.
ContributorsMurray, Catherine (Author) / Hogue, Cynthia (Thesis advisor) / Ball, Sally (Committee member) / Hummer, Terry (Committee member) / Arizona State University (Publisher)
Created2013
Description
Mapping Intersectionality in Harlem Renaissance Women's Poetry comprises the first book-length study devoted to examining the role women's poetry played in the Harlem Renaissance, an artistic and sociopolitical movement that reached its zenith in the 1920s. This study is situated in a theoretical interdisciplinarity that complicates critical approaches to Black women's subjectivities with respect to resistance and representation. It combines literary, race and gender theory to perform close readings of New Negro Women's poetry. Central chapters of the text theorize the poets' overshadowed engagement with the political movement via the tropes of interiority, motherhood, and sexuality; a closing chapter puts New Negro women's poetry in conversation with the Black Arts Movement. Building on the feminist sociological framework of Intersectionality, which considers the lived experience of individuals who embody multiple layers of marginalization, this dissertation works to identify and unpack sources of racialized gendered disparity in Harlem Renaissance studies. In acknowledging that self–actualization and self–articulation are central to this identity–based movement — a presupposition that informs this study's thesis — it becomes necessary to consider the gendered aspects of the writing for a more comprehensive review of the period. The analytical framework of Intersectionality provides a means to acknowledge New Negro women poets' perspectives regarding their racialized and gendered selves. In essence, Mapping Intersectionality is a concentrated effort toward unearthing evidence of their significant push against race and gender oppression. The motivation driving this study is revision and reclamation: revisionist in its concern for redefining the parameters in which the movement is traditionally perceived; a reclamation in its objective to underscore the influential, but nearly forgotten voices of the women poets of the Harlem Renaissance.
ContributorsPinkard, Michelle J., 1977- (Author) / Hogue, Cynthia (Thesis advisor) / Lester, Neal A. (Thesis advisor) / Reyes, Angelita (Committee member) / Arizona State University (Publisher)
Created2013
Description
Cruz del Sur is an exploration of what it means to be an outsider: as a resident, as a foreigner, from the perspective of the human eye, or from the perspective of a camera lens. An unlikely blending of voices, these poems embark the reader on a journey across a continent, and also into an interior: a mystical quest.
ContributorsMontgomery, Scott (Author) / Dubie, Norman (Thesis advisor) / Hogue, Cynthia (Committee member) / Hummer, Terry (Committee member) / Arizona State University (Publisher)
Created2013
Description
This dissertation makes the case to reclaim the typically negative term, coterie, as a poetic method and offers the epithalamium as a valuable object for the study of coterie conditions and values. This examination of the historical poetics of the epithalamium shows how the form was reappropriated by gay postwar poets and those in related social circumstances. This study applies and builds on theories developed by Arthur Marotti (John Donne: Coterie Poet), and Lytle Shaw (Frank O'Hara: The Poetics of Coterie) and subsequent critics to develop a coterie poetics, the markers and terms for which I have arranged here to demonstrate conscious "sociable" poetics. It is thus to our advantage to study coterie conditions and methods to open readers to insights into twentieth-century poets that have deliberately exploited reception among those in private and public spheres, just as their Early-Modern precursors did--often as a matter of survival, but also as formative practice. The key figures in this study wrote significant epithalamia or made major theoretical claims for coterie poetics: John Donne (1572-1631), W. H. Auden (1907-1973), Paul Goodman (1910-1972), and Frank O'Hara (1926-1966). O'Hara's poetry is approached as the apex of coterie poetics; his personal immediacy and obscure personal references should alienate and exclude--yet, they invite.
ContributorsEisenberg, Jeremy (Author) / Horan, Elizabeth (Thesis advisor) / Hogue, Cynthia (Committee member) / Sturges, Robert (Committee member) / Arizona State University (Publisher)
Created2012
Description
The Fledglings of Anani is a universe with an underlying organizing principle of desire, auspiciousness and serendipity, the veiled doors and windows of these realms serve as fugues bridging layers of time leading us through myth and landscape intimately tied to the physical intelligence of earth and character of place. It is a voice that comes to know itself first as being, then in correspondence to nature and her elements, enters into the rhythm of human connection and ultimately circles back to comprehend itself as all these things, varying only in degree. The poems travel further and further toward an allusive center with a contemplative inner eye that embraces the complexity and vitality of life.
ContributorsPoole, Heather Lea (Author) / Dubie, Norman (Thesis advisor) / Hogue, Cynthia (Committee member) / Savard, Jeannine (Committee member) / Arizona State University (Publisher)
Created2012
Description
Black Laurel is a book-length manuscript which has at its center poems that reveal and explore issues related to Michele Poulos's identity as a Greek-American writer, discovering the connections that link the past and present of both Greece and America. These poems often work as a quest to recover identity. They explore the idea that it is her own privileged perspective as an educated Greek-American woman that both allows and in some ways prevents her seeing herself in the Greeks who today are struggling economically, emotionally, and psychologically. Many of the poems work to achieve a complex understanding of both an individual as well as a broader cultural history. These poems sometimes take on the personas of striking figures from other times and other landscapes, while others draw on materials which are somewhat more autobiographical. In one poem titled "Before My Mother Set Herself on Fire," the speaker is an imagined daughter in a modern-day Greek family. The poem, inspired by a news story about an elderly man who shot himself in the head in front of Syntagma Square in Athens to protest the austerity measures imposed on the Greek population, explores the various ways in which a national crisis may affect an individual family. Alternatively, Poulos delves into her personal family history in "When the Wind Falls," a poem about the Nazi invasions of northern Greece. At the same time, this focus on past and present Greece is only one strand in a wide-ranging manuscript woven of materials which also include a variety of subjects related to science, history, eroticism, mysticism, and much more.
ContributorsPoulos, Michele (Author) / Dubie, Norman (Thesis advisor) / Hogue, Cynthia (Committee member) / Hummer, Terry (Committee member) / Arizona State University (Publisher)
Created2013