La utilización de algoritmos de optimización en problemas de ingeniería ha tenido un gran aumento en los últimos años, lo que ha llevado a la proliferación de un gran número de nuevos algoritmos para resolver problemas de optimización. Además, la aparición de nuevas técnicas de paralelización aplicables a estos algoritmos para mejorar su tiempo de convergencia ha hecho que sea objeto de estudio por parte de muchos autores. Dentro de todos los algoritmos centraremos la investigación en dos algoritmos de optimización: Jaya y TLBO (y su versión discreta DTLBO). Una de las principales ventajas de ambos algoritmos sobre otros métodos de optimización es que los primeros no necesitan ajustar parámetros específicos para el problema concreto al que se aplican. En este trabajo se comparan las implementaciones paralelas de Teaching-Learning Based Optimization y Jaya. La paralelización de ambos algoritmos se realiza utilizando técnicas de GPUs manycore. Se crearán diferentes escenarios partiendo de un enfoque teórico utilizando funciones de la literatura actual para la evaluación de algoritmos de optimización y finalizando en la aplicación de dichos algoritmos a problemas reales de optimización de rutas, en nuestro caso aplicándolo al problema del viajante y para problemas de perforación en placas. Los resultados permitirán comparar ambos algoritmos paralelos en cuanto al número de iteraciones y el tiempo necesario para realizarlas para obtener un nivel de error predeterminado. También se analizará la ocupación de recursos de la GPU en cada caso.

Thesis (doctoral)--Asia Graduate School of Theology, Philipines, 1995. / Title from PDF title screen (viewed Oct. 7, 2004).

This thesis examines how the Kamoro (also known as the Mimika) people of the south-west coast of Papua (former Irian Jaya), Indonesia have adapted to major political and economic changes over a long history of interactions with outsiders. More specifically, it is an ethnohistorical analysis of Kamoro strategies of engagement dating back to the seventeenth century, but focusing on the twentieth century. Taking ethnohistory to most generally refer to the investigation of the social and cultural distinctiveness of historical consciousness, this thesis examines how perceptions and activities of the past shape interpretations of the present. Though this thesis privileges Kamoro perspectives, it juxtaposes them against broader ethnohistorical analyses of the “outsiders” with whom they have interacted. For the Kamoro, amoko-kwere, narratives about the ancestral (and eternal) cultural heroes, underlie indigenous modes of historical consciousness which are ultimately grounded in forms of social reciprocity. One key characteristic of the amoko-kwere is the incorporation of foreign elements and their reformulation as products of indigenous agency. As a result of this reinterpretation expectations are raised concerning the exchange of foreign material wealth and abilities, both classified in the Kamoro language as kata. Foreign withholding of kata emerges as a dominant theme in amoko-kwere and is interpreted as theft, ultimately establishing relationships of negative reciprocity between the Kamoro and the powerful outsiders. These feelings are mirrored in contemporary Kamoro conceptions of their relationships with the Indonesian State and the massive PT Freeport Indonesia Mining Company who use a significant amount of Kamoro land for deposition of mining waste (tailings) and for the development of State and company infrastructure.

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The present study analyzes a selection of topics in the grammar of Nalca (Mek language; Papua), with a focus on verbs and nominals. No published grammar or dictionary is available for Nalca, but a translation of the New Testament was used as a parallel text. The results showed that Nalca is split-ergative, strongly suffixing and agglutinating, with subject-object-verb (SOV) as the dominant word order. Verbs consist of a stem and a series of suffixes expressing tense/aspect/mood, negation, number and person. The case alignment is ergative-absolutive for nouns, for which syntactic function is indicated by a series of postpositions. These postpositions agree with nouns in gender. Ergativity was not observed for pronouns; while the results were inconclusive, they appeared to show a nominative-accusative case alignment. The numeral system is an extended body-part system with the base 27. Many of the features found in Nalca are comparable with other Mek languages, with the gender system and split-ergativity being two major exceptions. Finally, the use of the New Testament as a parallel text was a success, with a basic description of the grammar of Nalca having been made, although further investigation is needed. / Denna studie analyserar ett urval av områden i nalcas (mekspråk; Papua) grammatik, med fokus på verb och nominaler. Det finns ingen publicerad grammatik eller ordlista tillgänglig för nalca, men en översättning av Nya Testamentet användes som parallelltext. Resutltaten visade att nalca är split-ergativt, starkt suffigerande och agglutinerande, med subjekt-objekt-verb (SOV) som dominerande ordföljd. Verb består av en stam och en serie suffix som uttrycker tempus/aspekt/modus, negation, numerus och person. Argumentstrukturen är ergativ-absolutiv för substantiv, för vilka syntaktisk funktion indikeras av en serie postpositioner. Dessa postpositioner kongruerar med substantiven efter genus. Ergativitet observerades inte för pronomen; trots att resultaten inte var slutgiltiga, tycktes dessa istället uppvisa ett nominativ-ackusativt system. Det numeriska systemet är ett utökat kroppsdelssystem med basen 27. Många av karaktärsdragen i nalca hade motsvarigheter i de andra mekspråken, med genussystemet och split-ergativiteten som de största undantagen. Användandet av Nya Testamentet som parallelltext visade sig vara lyckat, eftersom en grundläggande beskrivning av nalcas grammatik åstadkoms, även om ytterligare forskning krävs.