942 resultados para Truth.
Resumo:
The aim of the dissertation is to explore the idea of philosophy as a path to happiness in classical Arabic philosophy. The starting point is in comparison of two distinct currents between the 10th and early 11th centuries, Peripatetic philosophy, represented by al-Fārābī and Ibn Sīnā, and Ismaili philosophy represented by al-Kirmānī and the Brethren of Purity. They initially offer two contrasting views about philosophy in that the attitude of the Peripatetics is rationalistic and secular in spirit, whereas for the Ismailis philosophy represents the esoteric truth behind revelation. Still, they converge in their view that the ultimate purpose of philosophy lies in its ability to lead man towards happiness. Moreover, they share a common concept of happiness as a contemplative ideal of human perfection, which refers primarily to an otherworldly state of the soul s ascent to the spiritual world. For both the way to happiness consists of two parts: theory and practice. The practical part manifests itself in the idea of the purification of the rational soul from its bodily attachments in order for it to direct its attention fully to the contemplative life. Hence, there appears an ideal of philosophical life with the goal of relative detachment from the worldly life. The regulations of the religious law in this context appear as the primary means for the soul s purification, but for all but al-Kirmānī they are complemented by auxiliary philosophical practices. The ascent to happiness, however, takes place primarily through the acquisition of theoretical knowledge. The saving knowledge consists primarily of the conception of the hierarchy of physical and metaphysical reality, but all of philosophy forms a curriculum through which the soul gradually ascends towards a spiritual state of being along an order that is inverse to the Neoplatonic emanationist hierarchy of creation. For Ismaili philosophy the ascent takes place from the exoteric religious sciences towards the esoteric philosophical knowledge. For Peripatetic philosophers logic performs the function of an instrument enabling the ascent, mathematics is treated either as propaedeutic to philosophy or as a mediator between physical and metaphysical knowledge, whereas physics and metaphysics provide the core of knowledge necessary for the attainment of happiness.
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Tämän tutkimuksen tehtävänä on selvittää Francis Watsonin käsitys teologisesta hermeneutiikasta. Tutkielmassa käytetään kolmea tarkentavaa tutkimuskysymystä: Miten Watson hahmottaa tieteellisen raamatuntutkimuksen ja Raamatun teologisen tulkinnan suhteen? Miten Watson näkee raamatuntutkimuksessa historiallisen ja kirjallisen lähestymistavan suhteen toisiinsa? Miten Watson suhtautuu postmodernismiin teologisessa hermeneutiikassaan? Tutkimusmetodina on systemaattinen analyysi. Watsonin teologista hermeneutiikkaa ei ole tutkittu suomeksi ennen tätä työtä ja kansainvälistäkin tutkimusta aiheesta on hyvin vähän. Sen vuoksi tutkimuksessa on pyritty käsittelemään Watsonin teologista hermeneutiikkaa mahdollisimman kattavasti, mutta samalla on jouduttu rajaamaan työn ulkopuolelle osa Watsonin käsittelemistä teemoista, kuten Raamatun feministinen kritiikki ja VT:n ja UT:n suhde. Tutkimuksen päälähteinä ovat Watsonin kirjat Text, Church and World ja Text and Truth, joissa hän analysoi modernia historiallis-kriittistä raamatuntutkimusta, postmodernismia ja kirjallista lähestymistapaa Raamattuun. Watson kritisoi niissä näkemiään ongelmia ja kritiikkinsä pohjalta rakentaa omaa teologista hermeneutiikkaansa. Toissijaisina lähteinä tutkimuksessa on useita Watsonin artikkeleja, jotka tuovat lisävalaistusta Watsonin hermeneuttiseen ajatteluun. Päälähteiksi valitut teokset ja toissijaisiksi lähteiksi valitut artikkelit kattavat laajasti Watsonin hermeneutiikkaa käsittelevät kirjoitukset. Johdannon ja loppukatsauksen lisäksi tutkimus on jaettu neljään päälukuun. Tutkielman toisessa luvussa selvitetään Watsonin näkemys tieteellisen raamatuntutkimuksen ja Raamatun teologisen tulkinnan suhteesta ja havaitaan, että Watsonin mukaan raamatuntutkimuksen tulisi palvella teologista tulkintaa. Watson näkee ongelmallisena modernin raamatuntutkimuksen taipumuksen pitää erillään raamatuntutkimus ja -tulkinta ja luoda vastakkainasetteluja yliopiston ja kirkon, eksegetiikan ja systemaattisen teologian sekä neutraalin ja teologisen tulkinnan välille. Kolmannessa luvussa tarkastellaan Watsonin kritiikkiä historiallis-kriittistä tutkimusta kohtaan ja hänen perustelujaan päätökselle käyttää raamatuntulkinnassa ensisijaisesti tekstien lopullista, kanonista muotoa. Watson tukeutuu perusteluissaan Brevard Childsin kanoniseen lukutapaan ja tekstien yhteisölliseen käyttöön. Havaitaan, että Watson kuitenkin kritisoi kanonista lukutapaa sekä formalismista että sen teologisista sidonnaisuuksista. Watson hakee tukea myös Hans Frein narratiivisesta lähestymistavasta, jota Watson samalla kritisoi totuuskysymyksen ohittamisesta. Lopuksi käsitellään Watsonin yritystä liittää tekstin maailma ja sen taustalla oleva sosio-poliittinen todellisuus toisiinsa. Neljännessä luvussa käsitellään Watsonin yritystä yhdistää historiallinen ja kirjallisuustieteellinen lähestymistapa Raamatun teksteihin. Havaitaan, että Watsonin mielestä historiallis-kriittinen tutkimus polkee paikallaan ja siksi tarvitaan kirjallinen lähestymistapa, joka painottaa tekstin lopullista muotoa. Luvussa osoitetaan, ettei Watson kuitenkaan halua korvata puhtaasti historiallista lähestymistapaa puhtaasti kirjallisuustieteellisellä lähestymistavalla, sillä hän näkee ongelmallisena myös narratiivisen kritiikin taipumuksen käsitellä raamatunkertomuksia fiktiivisinä narratiiveina. Watson pyrkii ratkaisemaan ongelman yhdistämällä historiallisen ja kirjallisuustieteellisen lähestymistavan toisiinsa käsittelemällä evankeliumeja kerrottuna historiana. Viidennessä luvussa selvitetään miten Watson suhtautuu postmodernismiin teologisessa hermeneutiikassaan. Siinä havaitaan, että Watson näkee postmodernismin tarjoavan hyödyllisiä näkökulmia useissa hermeneuttisissa kysymyksissä. Samalla Watson vastustaa postmodernismin näkemystä, ettei teksteillä ole yhtä määrättyä merkitystä ja postmodernin teologian taipumusta viedä Raamatun kertomukselta sen universaali merkitys. Luvussa kuitenkin osoitetaan, että Watsonin antama kuva George Lindbeckin ja Stanley Hauerwasin postmodernista teologiasta on yksipuolinen ja osittain virheellinen.
Poetics of the Nameless Middle : Japan and the West in Philosophy and Music of the Twentieth Century
Resumo:
This study investigates the affinities between philosophy, aesthetics, and music of Japan and the West. The research is based on the structuralist notion (specifically, on that found in the narratology of Algirdas Julius Greimas), that the universal grammar functions as an abstract principle, underlying all kinds of discourse. The study thus aims to demonstrate how this grammar is manifested in philosophical, aesthetic, and musical texts and how the semiotic homogeneity of these texts can be explained on this basis. Totality and belongingness are the key philosophical concepts presented herein. As distinct from logocentrism manifested as substantializations of the world of ideas , god or mind, which was characteristic of previous Western paradigms, totality was defined as the coexistence of opposites. Thus Heidegger, Merleau-Ponty, Dōgen, and Nishida often illustrated it by identifying fundamental polarities, such as being and nothing, seer and seen, truth and illusion, etc. Accordingly, totality was schematically presented as an all-encompassing middle of the semiotic square. Similar values can be found in aesthetics and arts. Instead of dialectic syntagms, differentiated unity is considered as paradigmatic and the study demonstrates how this is manifested in traditional Japanese and Heideggerian aesthetics, as well as in the aspects of music of Claude Debussy and Tōru Takemitsu.
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In the first decade of the 21st century, national notables were a significant theme in the Finnish theatre. The lives of artists, in particular, inspired the performances that combined historical and fictional elements. In this study, I focus on the characters of female artists in 18 Finnish plays or performances from the first decade of the 21st century. The study pertains to the field of performance analysis. I approach the characters from three points of view. Firstly, I examine them through the action of performances at the thematic level. Secondly, I concentrate on the forms of relationships between the audience and the half-historical character. Thirdly, I examine the representations of characters and their relationships to the audience using myth as a tool. I approach characters from the frame of feminist phenomenological theatre study but also combine the points of view of other traditions. As a model, I adapt the approach of the theatre researcher Bert O. States, which concentrates on the relation between a play s text and an actor, and between an actor and the public. Furthermore, I use the analysing tools of performance art in an examination of performances counted among the contemporary performance genre. The biographical plays about these artists are concentrated in the domestic sphere and take part in the conversation about the position of women in both the community and private life. They represent the heroines work, love, temptations and hardships. The artists do not carry out heroic acts, being more like everyday heroines whose lives and art were shared with the audience in an aphoristic atmosphere. In the examined performances, criticism of the heterosexual matrix was mainly conservative and the myths of female and male artists differed from each other: the woman artist was presented as a super heroine whose strength often meant sacrifices; the male artist was a weaker figure primarily pursuing his individualistic objectives. The performances proved to be a kind of documentary theatre, a hybrid of truth and fiction. Nonetheless, the constructions of subject and identity mainly represented the characters of the mythical stories and only secondarily gave a faithful rendition of the artists lives. Although these performances were addressed to the general and heterogeneous public, their audience proved to be a strictly predefined group, for which the national myths and the experience of a collective identity emerged as an important theme. The heroine characters offered the audience "safe" idols who ensured the solidity of the community. These performances contained common, shared values and gave the audience an opportunity to feel empathy and to be charmed by the confessions of well-known national characters.
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The modern subject is what we can call a self-subjecting individual. This is someone in whose inner reality has been implanted a more permanent governability, a governability that works inside the agent. Michel Foucault s genealogy of the modern subject is the history of its constitution by power practices. By a flight of imagination, suppose that this history is not an evolving social structure or cultural phenomenon, but one of those insects (moth) whose life cycle consists of three stages or moments: crawling larva, encapsulated pupa, and flying adult. Foucault s history of power-practices presents the same kind of miracle of total metamorphosis. The main forces in the general field of power can be apprehended through a generalisation of three rationalities functioning side-by-side in the plurality of different practices of power: domination, normalisation and the law. Domination is a force functioning by the rationality of reason of state: the state s essence is power, power is firm domination over people, and people are the state s resource by which the state s strength is measured. Normalisation is a force that takes hold on people from the inside of society: it imposes society s own reality its empirical verity as a norm on people through silently working jurisdictional operations that exclude pathological individuals too far from the average of the population as a whole. The law is a counterforce to both domination and normalisation. Accounting for elements of legal practice as omnihistorical is not possible without a view of the general field of power. Without this view, and only in terms of the operations and tactical manoeuvres of the practice of law, nothing of the kind can be seen: the only thing that practice manifests is constant change itself. However, the backdrop of law s tacit dimension that is, the power-relations between law, domination and normalisation allows one to see more. In the general field of power, the function of law is exactly to maintain the constant possibility of change. Whereas domination and normalisation would stabilise society, the law makes it move. The European individual has a reality as a problem. What is a problem? A problem is something that allows entry into the field of thought, said Foucault. To be a problem, it is necessary for certain number of factors to have made it uncertain, to have made it lose familiarity, or to have provoked a certain number of difficulties around it . Entering the field of thought through problematisations of the European individual human forms, power and knowledge one is able to glimpse the historical backgrounds of our present being. These were produced, and then again buried, in intersections between practices of power and games of truth. In the problem of the European individual one has suitable circumstances that bring to light forces that have passed through the individual through centuries.
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From monologues to dialogue. A discussion about changing the fragmented character of the debate concerning schools to one of negotiation, in the spirit of social constructionism. The starting point for the study is the assumption that the interested parties concerning schools such as teachers, students, public servants within school administration or politics construct the idea of the school in disparate ways. It looks as if the representatives of the various interested parties perceive the school in distinctive ways or with particular emphases. Additionally, there are not many discussion forums where these different interested parties have an equal right to speak and be heard. It seems that the lack of dialogue characterizes the debate about school. At the centre of the study are negotiations concerning schools, and the conditions that promote changing the fragmented character of this school debate in a more promising and collectively responsible process of negotiation. The aims of the study are to find both an empirical and theoretical basis for more equal ways to negotiate about school, and to increase cultural self reflection. Social constructionism plays a key role in aspiring to meet these research aims. The research questions are (1) How do the informants of the study construct the idea of school in their texts, and (2) What kind of prospects does social constructionism bring to the negotiations about school. The research informants construct the idea of school in their texts in several ways. To sum up: school is constructed as a place for learning, a place for building the future, a place where ethical education is lived out, a place for social education and Bildung, and a place where the students well-being is ensured. The previously presented assumption that the interested parties of a school construct the idea of a school in disparate ways or with various emphases seems to have support in the informants texts. Based on that, a condition can be put forward: different perspectives should have an equal opportunity to be heard in negotiations about school. It would also be helpful if there was a chance for different perspectives to be documented and/or in some way, visualized. This ensures that different constructions of school are within reach of all the participants. Additionally, while making the process of negotiation transparent, this documentation becomes an important medium for self reflection. On one hand it visualizes the complexity of the school. On the other hand it protects the school and education from serving as the spokesman of any single truth that is presented as objective or universal. Social constructionism seems to offer a stable theoretical basis for changing the fragmented character of the school debate in one of negotiation. More equal and collectively responsible school negotiation presumes that certain aspects or conditions drawn from postmodernism and social constructionism have been studied. In the study, six conditions are presented that can be seen as mediums for changing the fragmented character of the school debate into one of more equal negotiation. Keywords: social constructionism, Kenneth J. Gergen, school negotiation, education policy, dialogue.
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Modal cohesion and subordination. The Finnish conditional and jussive moods in comparison to the French subjunctive This study examines verb moods in subordinate clauses in French and Finnish. The first part of the analysis deals with the syntax and semantics of the French subjunctive, mood occurring mostly in subordinate positions. The second part investigates Finnish verb moods. Although subordinate positions in Finnish grammar have no special finite verb form, certain uses of Finnish verb moods have been compared to those of subjunctives and conjunctives in other languages. The present study focuses on the subordinate uses of the Finnish conditional and jussive (i.e. the third person singular and plural of the imperative mood). The third part of the analysis discusses the functions of subordinate moods in contexts beyond complex sentences. The data used for the analysis include 1834 complex sentences gathered from newspapers, online discussion groups and blog texts, as well as audio-recorded interviews and conversations. The data thus consist of both written and oral texts as well as standard and non-standard variants. The analysis shows that the French subjunctive codes theoretical modality. The subjunctive does not determine the temporal and modal meaning of the event, but displays the event as virtual. In a complex sentence, the main clause determines the temporal and modal space within which the event coded by the subjunctive clause is interpreted. The subjunctive explicitly indicates that the space constructed in the main clause extends its scope over the subordinate clause. The subjunctive can therefore serve as a means for creating modal cohesion in the discourse. The Finnish conditional shares the function of making explicit the modal link between the components of a complex construction with the French subjunctive, but the two moods differ in their semantics. The conditional codes future time and can therefore occur only in non-factual or counterfactual contexts, whereas the event expressed by French subjunctive clauses can also be interpreted as realized. Such is the case when, for instance, generic and habitual meaning is involved. The Finnish jussive mood is used in a relatively limited number of subordinate clause types, but in these contexts its modal meaning is strikingly close to that of the French subjunctive. The permissive meaning, typical of the jussive in main clause positions, is modified in complex sentences so that it entails inter-clausal relation, namely concession. Like the French subjunctive, the jussive codes theoretical modal meaning with no implication of the truth value of the proposition. Finally, the analysis shows that verb moods mark modal cohesion, not only on the syntagmatic level (namely in complexe sentences), but also on the paradigmatic axis of discourse in order to create semantic links over entire segments of talk. In this study, the subjunctive thus appears, not as an empty category without function, as it is sometimes described, but as an open form that conveys the temporal and modal meanings emerging from the context.
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Kun synnytyksessä mikään ei suju suunnitelmien mukaan, mistä oikeastaan on kysymys? Kenellä on valta synnytyksessä ja miten se jaetaan? Pro gradu -työssäni yritän ratkaista tätä oman pettymykseni herättämää kysymystä Michel Foucault'n valtakäsityksien avulla. Työlleni erityisen tärkeitä ovat ranskalaisfilosofin teoriat vallan osapuolten välisistä kamppailuista, vallan ja tiedon suhteesta sekä vallasta mahdollisuuksien hallintana. Foucault'sta inspiroituneilta hallinnan analyytikoilta Nikolas Roselta ja Mitchell Deanilta saan käytännön apua analyysin tekemiseen aineistolähtöisen tulkinnan keinoin. Heidän neuvostaan keskityn miten-kysymyksiin sekä sanoihin asioiden mahdollistajana. Aineistonani käytän erään aktiivisuutta ja luottamuksellisuutta vaalivan keskustelupalstan Synnyttäjän oikeudet -aiheista keskustelua. Analyysin alku nosti keskustelusta kolme selkeää tapaa synnytyksen ja vallan hahmottamiseen: luonnon ja synnyttäjän voimia korostavan, taisteluasennetta kannattavan sekä sopuisaa, tyydyttävää elämystä toivovan. Tämä on kuitenkin vasta johtolanka, jonka seuraamisessa tarvitsen tutkimuskirjallisuutta sekä teoreettisen viitekehyksen tukea. Tärkeimpiä hyödyntämiäni tekstejä ovat Foucault'n The Subject and Power (2000a) ja Truth and Power (2000b) sekä synnyttämisen mahdollisuuksia pohtivat teokset, kuten Johanna Ruusuvuoren Synnyttämisen suuntia (1992) ja Robbie Davis-Floydin ja Carolyn Sargentin toimittama Childbirth and Authoritative Knowledge (1997). Teorian, tutkimustulosten ja aineistoni perusteella väitän, että synnytyksen ja vallan suhteessa on kysymys auktoriteetin ja itsehallinnan erilaisista kohtaamistavoista. Tiedon ja vallan järkähtämätön suhde on pönkittänyt synnytyssalin auktoriteeteille tukevan aseman, jota ei helposti heiluteta. Yrittää silti voi ja pitääkin, ainakin keskustelijoideni mielestä. Naiset synnyttävät uusia kansalaisia lääketieteen valvonnassa, mutta he tekevät sen omillakin ehdoillaan, omien tavoitteidensa toteuttamiseksi. Verkon kautta synnytyksen vaihtoehdot ovat levinneet ja jättäneet jälkensä myös perinteisen synnytyskulttuurin pintaan. Yksien totuudet ovat kuitenkin toisten totuuksia arvokkaampia, kuten Tammisaaren synnytysosaston sulkeminen osoittaa.
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Finnish forest industry is in the middle of a radical change. Deepening recession and the falling demand of woodworking industry´s traditional products have forced also sawmilling industry to find new and more fertile solutions to improve their operational preconditions. In recent years, the role of bioenergy production has often been highlighted as a part of sawmills´ business repertoire. Sawmilling produces naturally a lot of by-products (e.g. bark, sawdust, chips) which could be exploited more effectively in energy production, and this would bring more incomes or maybe even create new business opportunities for sawmills. Production of bioenergy is also supported by government´s climate and energy policies favouring renewable energy sources, public financial subsidies, and soaring prices of fossil fuels. Also the decreasing production of domestic pulp and paper industry releases a fair amount of sawmills´ by-products for other uses. However, bioenergy production as a part of sawmills´ by-product utilization has been so far researched very little from a managerial point of view. The purpose of this study was to explore the relative significance of the main bioenergy-related processes, resources and factors at Finnish independent industrial sawmills including partnerships, cooperation, customers relationships and investments, and also the future perspectives of bioenergy business at these sawmills with the help of two resource-based approaches (resource-based view, natural-resource-based view). Data of the study comprised of secondary data (e.g. literature), and primary data which was attracted from interviews directed to sawmill managers (or equivalent persons in charge of decisions regarding bioenergy production at sawmill). While a literature review and the Delphi method with two questionnaires were utilized as the methods of the study. According to the results of the study, the most significant processes related to the value chain of bioenergy business are connected to raw material availability and procurement, and customer relationships management. In addition to raw material and services, the most significant resources included factory and machinery, personnel, collaboration, and geographic location. Long-term cooperation deals were clearly valued as the most significant form of collaboration, and especially in processes connected to raw material procurement. Study results also revealed that factors related to demand, subsidies and prices had highest importance in connection with sawmills´ future bioenergy business. However, majority of the respondents required that certain preconditions connected to the above-mentioned factors should be fulfilled before they will continue their bioenergy-related investments. Generally, the answers showed a wide divergence of opinions among the respondents which may refer to sawmills´ different emphases and expectations concerning bioenergy. In other words, bioenergy is still perceived as a quite novel and risky area of business at Finnish independent industrial sawmills. These results indicate that the massive expansion of bioenergy business at private sawmills in Finland is not a self-evident truth. The blocking barriers seem to be connected mainly to demand of bioenergy and money. Respondents´ answers disseminated a growing dissatisfaction towards the policies of authorities, which don´t treat equally sawmill-based bioenergy compared to other forms of bioenergy. This proposition was boiled down in a sawmill manager´s comment: “There is a lot of bioenergy available, if they just want to make use of it.” It seems that the positive effects of government´s policies favouring the renewables are not taking effect at private sawmills. However, as there anyway seems to be a lot of potential connected to emerging bioenergy business at Finnish independent industrial sawmills, there is also a clear need for more profound future studies over this topic.
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The Finnish society developed rapidly in the 1960´s and 1970´s. This was result of international trends. Development of education, urbanization and wide organization of society increased discontent towards prevailing social structure and towards the power elite. Development of technology created possibility to present radical perspectives in mass media. This caused widely spread discussions dividing opinions. The purpose of this thesis was to complement research on national defence and the Finnish Defence Forces especially between years 1965 and 1975. The task of research was to clarify how changes in society and how the significance of this change was interpreted in public discussion about national defence and development of the Defence Forces. The most essential points for this thesis turned out to be discourses structured from public discussion. Main research material consisted of approximately 35000 news, editorials, articles and opinions presented in mass media supplemented by literature, committee reports and other archival sources. Frame of reference for this thesis is based on relativistic worldview. According to this, social reality is relative and there is no single truth. Environment has significant influence on the issue how knowledge and truth are formed. Data analysis was based on critical discourse. The key objective was to clarify the effects of broad changes in society using discursive methods. One essential goal was to form order of discourse using linguistic analysis and also connect discourses to wider sociocultural custom. On this thesis I came to the conclusion that on the review period there were five significant ensembles of discourse. They consisted of several discussions focused on different themes. The discourse of official security policy aimed to define national defence and the position of the Defence Forces as parts of foreign policy. Foreign policy is often perceived as the most significant part of security policy. Historical memory, geographical position of Finland and also the state contracts, changes in international warfare, tasks of the Defence Forces and increasing critic of national defence and the difference in thinking between generations formed the discourse of security policy. In the discourse of the liability to military service, the issue was about individual responsibility to society and national defence. Resisters and unarmed defence demands, encouraged by international examples were the themes. The discourse pointed out how mass media is used to influence and forced the Defence Forces to develop the practices in public information. The discourses of democracy and politics were closer to internal development of the Defence Forces to integrate more into society. The discourse of democracy focused in changing power relationships of the Defence Forces that were known as authoritarian. Issues like conscript and personnel union activity had lot of similarities to general social development. The discourse of politics presented how the Defence Forces were pushed towards parliamentary decision making. The personnel was granted the same rights as other population. Themes related to the discourse on the will to national defence were development of mental national defence, increasing education on national defence and creation of more open public information culture. According to discourses presented above I can state, that the position of the Defence Forces in society was changed between years 1965-1975. This change was advanced by the Defence Forces reformed attitude towards mass media and public information in general. Active participation in public information important became important instead of only answering topics. This positive development created an atmosphere, that was easier for the public to understand and create own pictures of the armed forces. Due to this, I can describe that the defenders and supporters of the armed forces were stuck in their trenches, until discussions presented in discourses and themes developed the Defence Forces to be better fitting part of society. Key words; society, national defence, Defence Forces, discourse, mass media, security policy, liability to military service, conscription, democracy
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Over the last few decades, there has been a significant land cover (LC) change across the globe due to the increasing demand of the burgeoning population and urban sprawl. In order to take account of the change, there is a need for accurate and up- to-date LC maps. Mapping and monitoring of LC in India is being carried out at national level using multi-temporal IRS AWiFS data. Multispectral data such as IKONOS, Landsat- TM/ETM+, IRS-1C/D LISS-III/IV, AWiFS and SPOT-5, etc. have adequate spatial resolution (~ 1m to 56m) for LC mapping to generate 1:50,000 maps. However, for developing countries and those with large geographical extent, seasonal LC mapping is prohibitive with data from commercial sensors of limited spatial coverage. Superspectral data from the MODIS sensor are freely available, have better temporal (8 day composites) and spectral information. MODIS pixels typically contain a mixture of various LC types (due to coarse spatial resolution of 250, 500 and 1000 m), especially in more fragmented landscapes. In this context, linear spectral unmixing would be useful for mapping patchy land covers, such as those that characterise much of the Indian subcontinent. This work evaluates the existing unmixing technique for LC mapping using MODIS data, using end- members that are extracted through Pixel Purity Index (PPI), Scatter plot and N-dimensional visualisation. The abundance maps were generated for agriculture, built up, forest, plantations, waste land/others and water bodies. The assessment of the results using ground truth and a LISS-III classified map shows 86% overall accuracy, suggesting the potential for broad-scale applicability of the technique with superspectral data for natural resource planning and inventory applications.
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A customer reported problem (or Trouble Ticket) in software maintenance is typically solved by one or more maintenance engineers. The decision of allocating the ticket to one or more engineers is generally taken by the lead, based on customer delivery deadlines and a guided complexity assessment from each maintenance engineer. The key challenge in such a scenario is two folds, un-truthful (hiked up) elicitation of ticket complexity by each engineer to the lead and the decision of allocating the ticket to a group of engineers who will solve the ticket with in customer deadline. The decision of allocation should ensure Individual and Coalitional Rationality along with Coalitional Stability. In this paper we use game theory to examine the issue of truthful elicitation of ticket complexities by engineers for solving ticket as a group given a specific customer delivery deadline. We formulate this problem as strategic form game and propose two mechanisms, (1) Division of Labor (DOL) and (2) Extended Second Price (ESP). In the proposed mechanisms we show that truth telling by each engineer constitutes a Dominant Strategy Nash Equilibrium of the underlying game. Also we analyze the existence of Individual Rationality (IR) and Coalitional Rationality (CR) properties to motivate voluntary and group participation. We use Core, solution concept from co-operative game theory to analyze the stability of the proposed group based on the allocation and payments.
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Many knowledge based systems (KBS) transform a situation information into an appropriate decision using an in built knowledge base. As the knowledge in real world situation is often uncertain, the degree of truth of a proposition provides a measure of uncertainty in the underlying knowledge. This uncertainty can be evaluated by collecting `evidence' about the truth or falsehood of the proposition from multiple sources. In this paper we propose a simple framework for representing uncertainty in using the notion of an evidence space.
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This paper describes a semi-automatic tool for annotation of multi-script text from natural scene images. To our knowledge, this is the maiden tool that deals with multi-script text or arbitrary orientation. The procedure involves manual seed selection followed by a region growing process to segment each word present in the image. The threshold for region growing can be varied by the user so as to ensure pixel-accurate character segmentation. The text present in the image is tagged word-by-word. A virtual keyboard interface has also been designed for entering the ground truth in ten Indic scripts, besides English. The keyboard interface can easily be generated for any script, thereby expanding the scope of the toolkit. Optionally, each segmented word can further be labeled into its constituent characters/symbols. Polygonal masks are used to split or merge the segmented words into valid characters/symbols. The ground truth is represented by a pixel-level segmented image and a '.txt' file that contains information about the number of words in the image, word bounding boxes, script and ground truth Unicode. The toolkit, developed using MATLAB, can be used to generate ground truth and annotation for any generic document image. Thus, it is useful for researchers in the document image processing community for evaluating the performance of document analysis and recognition techniques. The multi-script annotation toolokit (MAST) is available for free download.
Resumo:
We propose a set of metrics that evaluate the uniformity, sharpness, continuity, noise, stroke width variance,pulse width ratio, transient pixels density, entropy and variance of components to quantify the quality of a document image. The measures are intended to be used in any optical character recognition (OCR) engine to a priori estimate the expected performance of the OCR. The suggested measures have been evaluated on many document images, which have different scripts. The quality of a document image is manually annotated by users to create a ground truth. The idea is to correlate the values of the measures with the user annotated data. If the measure calculated matches the annotated description,then the metric is accepted; else it is rejected. In the set of metrics proposed, some of them are accepted and the rest are rejected. We have defined metrics that are easily estimatable. The metrics proposed in this paper are based on the feedback of homely grown OCR engines for Indic (Tamil and Kannada) languages. The metrics are independent of the scripts, and depend only on the quality and age of the paper and the printing. Experiments and results for each proposed metric are discussed. Actual recognition of the printed text is not performed to evaluate the proposed metrics. Sometimes, a document image containing broken characters results in good document image as per the evaluated metrics, which is part of the unsolved challenges. The proposed measures work on gray scale document images and fail to provide reliable information on binarized document image.