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Articles 1 - 10 of 10
Full-Text Articles in Physical Sciences and Mathematics
On Image Segmentation Using Neural Networks And Fuzzy Sets., Ashish Ghosh Dr.
On Image Segmentation Using Neural Networks And Fuzzy Sets., Ashish Ghosh Dr.
Doctoral Theses
During the last five decades or even more a large number of researchers are trying to design intelligent systems to perform tasks at which human beings are more efficient at present. One of the most important behavioral tasks in which human beings show their expertise is image analysis or recognition; where a large amount of pictorial data is processed in a very small amount of time (called real time). Widespread attempts have been made to develop intelligent systems (under different names, like pattern recognition system, image under- standing system, computer vision system etc.) for pictorial pattern analysis and recognition. The …
Interaction Of Price And Technology In The Presence Of Structural Specificities:An Analysis Of Crop Production In Kerala., Delampady Narayana Dr.
Interaction Of Price And Technology In The Presence Of Structural Specificities:An Analysis Of Crop Production In Kerala., Delampady Narayana Dr.
Doctoral Theses
The present study attempts to understand the agricultural economy of Kerala in terms of the structural characteristics specific to the state. This approach requires such aspects to be incorporated in the analysis, and also entails a shift from certain accepted modes of thinking and statistical treatment used in the analysis of field crops.The specificities arise from certain distinctive features on the demand and supply sides'. On the demand side, there is substi tution between rice and tapioca, and the two crops constitute the food group. The rest of the crops form the non-food group, and there is no substitution among …
On Markov Processes Charecterised Via Martingale Problem., Abhay G. Bhatt Dr.
On Markov Processes Charecterised Via Martingale Problem., Abhay G. Bhatt Dr.
Doctoral Theses
Martingale approach to the study of finite dimensional diffusions was initiated by Stroock-Varadhan, who coined the term martingale problem. Their success led to a similar approach being used to study Markov processes occuring in other areas such as infinite particle systems, branching processes, genetic models, density dependent population processes, random evolutions etc.Suppose X is a Markov process corresponding to a semigroup (T)e20 with generator L. Then all the information about X is contained in L. We also have thatMf(t) := f(X(t)) – ∫t0 Lf(X(s))dsis a martingale for every f ∈ D(L). i.e. X is a solution to the martingale problem …
Joint Venture And Bargaining., Prabal Ray Chaudhuri Dr.
Joint Venture And Bargaining., Prabal Ray Chaudhuri Dr.
Doctoral Theses
My dissertation deals with some problems in theoretical economics. The five essays in this thesis can be classified under the broad categories of industrial organization and game theory.Part I of the thesis comprises three chapters. These deal with some issues in the area of joint ventures and technology transfer. Chapter 2 investigates the relationship between technological dissimilarity and joint venture success. The third chapter explores some policy issues related to joint product development. Chapter 4 examines the relative efficacy of centralized and decentralized bargaining schemes in technology transfer.In part II I examine some issues in bargaining theory. The fifth chapter …
Coxeter Groups And Positive Matrices., Arbind Kumar Lal Dr.
Coxeter Groups And Positive Matrices., Arbind Kumar Lal Dr.
Doctoral Theses
In this thesis, we study positive matrices (matrices whose entries are nonnegative as well as matrices which are positive semidefinite) with Coxeter groups as the underlying theme. For an exposition on Coxeter groups see Humphreys (1990).A Cozeter system consists of a pair (W, s); where W is a group and S is a set which consists of the generators of the group W. The elements of the set S have only the relations of the form (ss')m(s.) 1; where m(s, s) 1, m(s, s') = m(s,s) 2 2 for s s in S. In case no relation occurs for a …
Survival Function Estimation Under Random Censoring., Debajyoti Dhar Dr.
Survival Function Estimation Under Random Censoring., Debajyoti Dhar Dr.
Doctoral Theses
Statistical methods for life data analysis are used to measure, compare and predict characteristics of the distribution of the time to some particular event of interest, often called failure after a length of time, called life time. Failure can occur at most once for an individual. Examples of failure time include the lifetimes of machine components in industrial reliability, the duration of strikes or periods of unemployment in economic studies, the time taken by subjects to complete specified tasks in psychological experiments, the lengths of tracks photographic plates in particle physics and the on survival time of patients in clinical …
Optimal Short Run Electricity Supply India:Rationing And Pricing Optionsa., Uma Vishvanathan Dr.
Optimal Short Run Electricity Supply India:Rationing And Pricing Optionsa., Uma Vishvanathan Dr.
Doctoral Theses
The supply of electricity to consumers in India is governed by the Electricity Supply Act (1948). Under the Act, electricity can be supplied from two sources: (i) licensees - that is, a person or body licensed under the Indian Electricity Act 1910 to supply energy, or a person who has obtained sanction under Section 28 of that Act to engage in the business of supplying energy. (ii) The State Electricity Boards constituted under various State Governments and charged with the general duty of promoting the coordinated development of the generation, supply and distribution of electricity within the State in the …
Agricultural Tenancy In Palanpur., Naresh Kumar Sharma Dr.
Agricultural Tenancy In Palanpur., Naresh Kumar Sharma Dr.
Doctoral Theses
Institutions and arrangements governing the property and use of land are crucial to the development of productive forces. This is true, in particular, of triennial arrangements. The system of land tenures that prevailed during the colonial period was widely considered the main cause of economic stagnation at the time of India's independence (1947). It was also perceived as highly exploitative of the tenants. Thus, land reforms were accorded the highest priority by the new Indian Government. Soon all the State Legislatures started enacting land reform laws - starting with the Legislative Assembly of Bihar immediately after 1947 and the Legislative …
Generalised Inverses Of Matrices Over Rings., K. Manjunatha Prasad Dr.
Generalised Inverses Of Matrices Over Rings., K. Manjunatha Prasad Dr.
Doctoral Theses
For a complex or a real matrix A, a matrix G is called a generalized inverse ( or g-inverse) of A if(1) AGA = AThe theory of generalized inverses over the field of complex numbers is well- studied in the literature (see (2), (11), (33), and (62) for an extensive bibliography). Even for matrices over a general field the above equation carries over. In fact, even for matrices over a general ring, equation (1) makes sense. Hence one can talk of g-inverses of matrices over general rings. Some work on g-inverses of matrices over fields also can be found in …
On Some Measurement Problem In Economics., Nachiketa Chattopadhyay Dr.
On Some Measurement Problem In Economics., Nachiketa Chattopadhyay Dr.
Doctoral Theses
In many branches of economie theory, quantitative relationships play a major role. Translating actions of individuals or groups of individuals, in the various soci- etal processes of production, distribution or consumption, into measurable or quan- tifiable notions has been one of the most important problems. When we take the society as a whole, diverse economic activities of ita memhers need to be collectively presented and it has given rise to interesting aggregation problems. Economists have tried to solve these problems by constructing social index numbers. Simi- larly, quantifying actions of individual units (for example, a firm /a consumer) has brought …