Classical View of Modern Society: A Comparison

As we approach the third millennia, the world grows into complexity. The world is now on the modern era with different changes from its cultural and intellectual movements. The world is facing a modern enlightenment. Nonetheless, there were also some improvements on how the modern society works but there were also a lot of varied and complex problems and challenges that emerge.Although, many people still believe that man can solve these problems and overcome these challenges thru meaningful analysis and introspection. Some search the answer from the theories of classical philosophers. They believe that this world will not be on what it is now without these people. Yet, the question still lies on their validity of the assertion s of the philosophers. Are these assertions ad theories relevant and appropriate in the modern times?However, we and these philosophers have varied experiences. Yet, their in depth knowledge of society bids us to believe them and study them. Like Marx, who died a hundred years ago, still had many followers. Marx on his early age had observed the plight of the masses against the bourgeoisie in the capitalist society. He, just like Friedrich Nietzsche, believed in the reconstruction of the society and in redefining the role of an individual. He argued that man’s will was not due to his like or to his needs, rather, society dictated him on the things that he should like or he should need.Society and man interacted, so according to him there is a need that a society, in which a man lived, should be fair and would be the instrument on predisposing justice on all the people. Marx further asserted that not a man could claim that his existence is largely due to himself, but rather all people existed because of mutual relationship and interdependency. He believed that all humans are interconnected in various ways, such as a social network, that whatever one does would surely affect others.However, through out his life, Marx had commented on the ambiguity and the disorderliness of the society. He had seen and observed the resistance and struggles between the different classes or strata of the society. He had observe that people with equal classes such as the bourgeoisie formed an alliances with each others to further their ends. Marx had observed that somewhat there is a line or an immense gap that had divided the people from intermingling with each other.He asserted that there was a categorizing force that bonded people with equal social status. As a result, the proletariat class was oppressed and injustice was done to them. Oppressions, according to Marx, might trigger bloody civil revolutions, and unrest in the society would prevail. In order to prevent this from occurring, Marx proposed a communist society, as what he described in his book together with Friedrich Engels, The Communist Manifesto.Engels, a co-author, deemed that the The Communist Manifesto was exclusively the product of Marx’s brilliance, and the book was Marx’s. In the book, Marx and Engels first summoned up history. In their exposition through the dialectic philosophy, they both expressed that in the world there existed two opposing forces[1]. They had described that there existed those who oppressed and those that were oppressed. The main point on which the The Communist Manifesto revolved was the establishment of a communist society.A communist society, as what both described is a liberated society were people are all treated equally. Moreover it is a society that does not discriminate nor classify people because social status is no longer in existence. Moreover, communism proposed a society wherein people will no longer acknowledge his or her possessions rather his or her properties belong to everyone. Marx and Engels further stressed the need for centralization and organization of all the properties and efforts of the state for a common ground.The book proposed equal sharing and division of labors, equal all otment of profits and income. Moreover, in the long run, Communism also believed in the diminishment of the state and its ruler because Marx believed that if an ideal society (communist society) existed, the people would no longer be in need of a facilitator or an organizer to dictate or facilitate living. According to them, the state would only serve as a guide meanwhile that a communist society is not yet achieved[2].Meanwhile, another notable German philosopher was Max Weber, who unlike Marx traced the origin of capitalism and its role to the society. If one would read the title of Weber’s work and not the text, one may laugh because one cannot relate easily capitalism and the protestant ethic. However, Weber’s The Protestant Ethic and the Spirit of Capitalism was a huge success because he had found sensible reasons on how the protestant ethic might have contributed to the origin of capitalism.Weber, who was considered one of the fathers of modern sociology, was ver y different as compared to Marx. Marx, although a Jewish, denounced the belief in the inexistence of God. He asserted that god does not shaped man according to his form, yet man conceptualized the absolute as a model- who is perfect and divine- due to his quest of attaining also that same stature. On the other hand, Weber had researched a lot on how religion had affected the life of man. He had wrote more descriptive and analytical essays after the The Protestant Ethic and the Spirit of Capitalism. He had shown the effects of religion to the communal and shared cause of a society[3]. He had discussed that religious background define the wants and the needs of each person.For example, he had found out that the Hindus and the Buddhist were religious groups who taught that life is all about gaining material wealth or money. Yet they had other goals, like unity to the divine and freedom from the repeated cycle of rebirth. These assertions were parallel to the basis on how he analyzed th e origin of capitalism. Weber asserted that he did not claim that all the reasons of the birth of capitalism were mainly due to the protestant. He just cited some evidences that verified and attested his claim. The Calvinist, a protestant sect, according to him had that attitude of pursuing material wealth and worldly success. This was because- according to him as Calvinist believed-was the manifestation of God’s grace to the Calvinist.The Calvinist believed that God showed many signs in this earthly being of what will be their destination in the afterlife. Calvinist believed that if God made them rich, there is a large possibility that they will not suffer eternal damnation in the future. So in connection with this, they find ways on how to improve their status in life usually wanting to beat their fellow Calvinists in terms of material wealth[4].  Ã‚   So Weber asserted that this kind s of attitudes triggered the start of capitalism. Weber also considered the fact that th ere was also other factor which determined the start of capitalism. However, Weber considered religion to be a very immense factor in shaping society. These considerations lead him to immense study about different religions and their roles in different society.Unlike Marx, Weber in his economic theories still saw the importance of social class and did not promote its abolition. Weber believed that man’s work and capabilities were different and varied from each other so he stated that each man’s achievement and wealth will surely be different from each other. He rejected the ideas of Marx, saying that such an ideal society is not achievable.   It was very clear in the opening of his essay, The Protestant Ethic and the Spirit of Capitalism, that he favored capitalism.However, Emile Durkheim, a modern sociologist, in his book the The Elementary Forms of Religious Life, argued that there are existing social facts that determined society. These social facts according to h im were not related to an individual but were in existence and affect the entirety of life of an individual and the society as a whole. He is considered the father of modern sociology because of his endeavor to tackle society as purely sociology and away from psychology and philosophy. In his book, he described that religion is one of the social facts where an individual cannot go away from.In an individual’s search for identity and his role in the society, he is often confused with ethics and morality. Often, an individual was mystified on making decisions whether to do the good or to the bad. So Durkheim considered morality and ethics as one of the social facts that needed particular attention because most of an individual’s action was derived from them. In his book, he had expounded the role of religion on binding the individuals. He also described the collective morality that an individual received as he is affiliated to a certain religious group.He further his exp lanation saying that a religion was not simply based on the discernment of the right from the wrong, yet individuals learned the sacrosanct and the right by participating in worship and other religious activities. He described that these religious activities were the ones that defined the morality of an individual.Moreover, Marx, Weber and Durkheim seemed to have complementary views with regards to society and they have different ways on how they described its evolution and growth. However, all of them presented their ideas with concrete evidences and all of them deal with reality. However, Marxist view of society was very ideal and was very hard to attain. Specifically his propositions with regards to the abolition of the state and the thing which he said as common cause, those things were not achievable due to the existence of greed and self indulgence of an individual.However, Weber described that individual’s variety is the linking force that binds individuals. He discuss ed that there is no need to abolish the social leveling of individuals for abolishment will be an injustice to the capitalist or to those people who worked so hard in attaining their social status. Moreover, Durkheim agreed with Weber. Durkheim argued that education is the key in removing the self-indulgencies of an individual. He further asserted that education will limit the possession of an individual. Durkheim believed that proper education and discipline would hammer commitment and would foster the obligation of an individual to the society.   Durkheim’s assertion was well fitted and his arguments are most valid in terms of describing the modern society.BibliographyBottomore, T (ed), Karl Marx, 3rd edn,Blackwell, Oxford, 1979.Geras, Norman,   The Controversy about Marx and Justice, in A. Callinicos (ed.), Marxist Theory, Oxford University Press, Oxford,1989.Kà ¤sler, D, Max Weber: An Introduction to his Life and Work, University of Chicago Press, Chicago, 1988.Là ¶ with, K, Max Weber and Karl Marx, Allen & Unwin, London, 1982McLellan, D, Marx Before Marxism, Macmillan, London, 1970.Marx, K, ,F Engelsb& M Malia, The Communist Manifesto. Signet Classic, New York, 1998.Weber, M, The Protestant Ethic and the Spirit of Capitalism. Routledge, New York,1992.[1] T Bottomore, (ed), Karl Marx, 3rd edn,Blackwell, Oxford, 1979 pg.9. [2] Kostof, p. 18. [3] M Weber, The Protestant Ethic and the Spirit of Capitalism. Routledge, New York,1992, pg.3. [4]D Kà ¤sler, Max Weber: An Introduction to his Life and Work, University of Chicago Press, Chicago, 1988, pg 22.

The Plasma Membrane essays

The Plasma Membrane essays The plasma membrane consists of 40 percent of lipid molecules and 60 percent of proteins. It plays a very important role in living organisms, in which one of its main functions is to act as a barrier between the internal and the external environment of each cell. Not only that, but it also controls the chemical reactions of a cell. In 1935, Davson and Danielli suggested that 40 percent of the lipid molecules are arranged in a lipid bilayer. Each phospholipid molecule consists of a glycerol molecule linked to two long chain fatty acids and a phosphate group or phosphate head. The lipid bilayer forms due to the hydrophobic and the hydrophilic nature of the phospholipid. The polar head or phosphate group is hydrophilic or water loving and the two fatty acid tails are hydrophobic, or water hating. The bilayer is therefore arranged in order for the fatty acids to exclude as much water as possible their structure. With improvements in technology (improvements in electron microscopy), a more detailed structure of the cell plasma membrane was laid out. The two scientists, in 1972, by the name of Singer and Nicolson, suggested that the membrane is a fluid structure and is always moving. They put forward the idea of the fluid mosaic model of the membrane. This suggests that there is a lipid bilayer, however, apart from that there is a mosaic or an irregular distribution of different sized proteins that span the membrane as well. There are three different types of proteins that span the cell surface membrane. The first one is the extrinsic protein. This protein is situated only on one side of the membrane. The intrinsic proteins or channel proteins span the whole membrane, covering both the sides of it. The third protein is the Glycoprotein. This protein has a different structure compared to the i...

Competitive positioning strategy and generic recommendations for Essay - 1

Competitive positioning strategy and generic recommendations for management 1042 - Essay Example This is because the Bowman’s strategy close helps companies to identify their unique competitive positioning based on their products or service and the pricing model they want to use with these. In a more practice term, companies are found to gain the best form of advantage with their competitive positioning when they are able to have a tangible competitive positioning action plan. This action plan may be composed of several practical tasks to be performed, including market profiling, customer segments, competitive analysis, among others. The world can now be referred to as a global village for several reasons. One of the most reasons is the fact that businesses can now move very easily from one point to another in attempt to expanding their market presence. But as companies move from one point to the other to do business, it is always important that they will appreciate the fact that there is competition within the places they go, a reason of which they must strategically place themselves in a way that makes them take all needed advantage on the market. Brown (2008) indicated that in any competitive market, the only guarantee for individual companies to succeed is for them to have a competitive advantage that is lasting. But for such an enviable competitive advantage to be developed, it is very important that a company will know what it has within its means and how it is positioned in the larger market that serves as an opportunity for improving its value (Porter, 1996). Baumeister and Leary (2005) noted that customers today are highly enlightened about value creation, a reason for which they would select value as the best force factor for doing business with one company and not the other. This is where competitive positioning becomes an important phenomenon for the companies. This is because competitive positioning has been explained to be the process of identifying a company’s value

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Handwritten Character Recognition Using Bayesian Decision Theory

Handwritten Character Recognition Using Bayesian Decision Theory Abstract: Character recognition (CR) can solve more complex problem in handwritten character and make recognition easier. Handwriting character recognition (HCR) has received extensive attention in academic and production fields. The recognition system can be either online or offline. Offline handwritten character recognition is the sub fields of optical character recognition (OCR). The offline handwritten character recognition stages are preprocessing, segmentation, feature extraction and recognition. Our aim is to improve missing character rate of an offline character recognition using Bayesian decision theory. Keywords: Character recognition, Optical character recognition, Off-line Handwriting, Segmentation, Feature extraction, Bayesian decision theory. Introduction The recognition system can be either on-line or off-line. On-line handwriting recognition involves the automatic conversion of text as it is written on a special digitized or PDA, where a sensor picks up the pen-tip movements as well as pen-up/pen-down switching. That kind of data is known as digital ink and can be regarded as a dynamic representation of handwriting. Off-line handwriting recognition involves the automatic conversion of text in an image into letter codes which are usable within computer and text-processing applications. The data obtained by this form is regarded as a static representation of handwriting. The aim of character recognition is to translate human readable character to machine readable character. Optical character recognition is a process of translation of human readable character to machine readable character in optically scanned and digitized text. Handwritten character recognition (HCR) has received extensive attention in academic and production fields. Bayesian decision theory is a fundamental statistical approach that quantifies the tradeoffs between various decisions using probabilities and costs that accompany such decision. They divided the decision process into the following five steps: Identification of the problem. Obtaining necessary information. Production of possible solution. Evaluation of such solution. Selection of a strategy for performance. They also include a sixth stage implementation of the decision. In the existing approach missing data cannot be recognition which is useful in recognition historical data. In our approach we are recognition the missing words using Bayesian classifier. It first classifier the missing words to obtain minimize error. It can recover as much error as possible. Related Work The history of CR can be traced as early as 1900, when the Russian scientist Turing attempted to develop an aid for the visually handicapped [1]. The first character recognizers appeared in the middle of the 1940s with the development of digital computers. The early work on the automatic recognition of characters has been concentrated either upon machine-printed text or upon a small set of well-distinguished handwritten text or symbols. Machine-printed CR systems in this period generally used template matching in which an image is compared to a library of images. For handwritten text, low-level image processing techniques have been used on the binary image to extract feature vectors, which are then fed to statistical classifiers. Successful, but constrained algorithms have been implemented mostly for Latin characters and numerals. However, some studies on Japanese, Chinese, Hebrew, Indian, Cyrillic, Greek, and Arabic characters and numerals in both machine-printed and handwritten cas es were also initiated [2]. The commercial character recognizers were available in the 1950s, when electronic tablets capturing the x-y coordinate data of pen-tip movement was first introduced. This innovation enabled the researchers to work on the on-line handwriting recognition problem. A good source of references for on-line recognition until 1980 can be found in [3]. Studies up until 1980 suffered from the lack of powerful computer hardware and data acquisition devices. With the explosion of information technology, the previously developed methodologies found a very fertile environment for rapid growth addition to the statistical methods. The CR research was focused basically on the shape recognition techniques without using any semantic information. This led to an upper limit in the recognition rate, which was not sufficient in many practical applications. Historical review of CR research and development during this period can be found in [4] and [3] for off-line and on-line cases, respectively. The real progress on CR systems is achieved during this period, using the new development tools and methodologies, which are empowered by the continuously growing information technologies. In the early 1990s, image processing and pattern recognition techniques were efficiently combined with artificial intelligence (AI) methodologies. Researchers developed complex CR algorithms, which receive high-resolution input data and require extensive number crunching in the implementation phase. Nowadays, in addition to the more powerful computers and more accurate electronic equipments such as scanners, cameras, and electronic tablets, we have efficient, modern use of methodologies such as neural networks (NNs), hidden Markov models (HMMs), fuzzy set reasoning, and natural language processing. The recent systems for the machine-printed off-line [2] [5] and limited vocabulary, user-dependent on-line handwritten characters [2] [12] are quite satisfactory for restricted applications. However, there is still a long way to go in order to reach the ultimate goal of machine simulation of fluent human reading, especially for unconstrained on-line and off-line handwriting. Bayesian decision Theory (BDT), one of the statistical techniques for pattern classification, to identify each of the large number of black-and-white rectangular pixel displays as one of the 26 capital letters in the English alphabet. The character images were based on 20 different fonts and each letter within 20 fonts was randomly distorted to produce a file of 20,000 unique instances [6]. Existing System In this overview, character recognition (CR) is used as an umbrella term, which covers all types of machine recognition of characters in various application domains. The overview serves as an update for the state-of-the-art in the CR field, emphasizing the methodologies required for the increasing needs in newly emerging areas, such as development of electronic libraries, multimedia databases, and systems which require handwriting data entry. The study investigates the direction of the CR research, analyzing the limitations of methodologies for the systems, which can be classified based upon two major criteria: 1) the data acquisition process (on-line or off-line) and 2) the text type (machine-printed or handwritten). No matter in which class the problem belongs, in general, there are five major stages Figure1 in the CR problem: 1) Preprocessing 2) Segmentation 3) Feature Extraction 4) Recognition 5) Post processing 3.1. Preprocessing The raw data, depending on the data acquisition type, is subjected to a number of preliminary processing steps to make it usable in the descriptive stages of character analysis. Preprocessing aims to produce data that are easy for the CR systems to operate accurately. The main objectives of preprocessing are: 1) Noise reduction 2) Normalization of the data 3) Compression in the amount of information to be retained. In order to achieve the above objectives, the following techniques are used in the preprocessing stage. Preprocessing Segmentation Splits Words Feature Extraction Recognition Post processing Figure 1. Character recognition 3.1.1 Noise Reduction The noise, introduced by the optical scanning device or the writing instrument, causes disconnected line segments, bumps and gaps in lines, filled loops, etc. The distortion, including local variations, rounding of corners, dilation, and erosion, is also a problem. Prior to the CR, it is necessary to eliminate these imperfections. Hundreds of available noise reduction techniques can be categorized in three major groups [7] [8]: a) Filtering b) Morphological Operations c) Noise Modeling 3.1.2 Normalization Normalization methods aim to remove the variations of the writing and obtain standardized data. The following are the basic methods for normalization [4] [10][16]. a) Skew Normalization and Baseline Extraction b) Slant Normalization c) Size Normalization 3.1.3 Compression It is well known that classical image compression techniques transform the image from the space domain to domains, which are not suitable for recognition. Compression for CR requires space domain techniques for preserving the shape information. a) Threshold: In order to reduce storage requirements and to increase processing speed, it is often desirable to represent gray-scale or color images as binary images by picking a threshold value. Two categories of threshold exist: global and local. Global threshold picks one threshold value for the entire document image which is often based on an estimation of the background level from the intensity histogram of the image. Local (adaptive) threshold use different values for each pixel according to the local area information. b) Thinning: While it provides a tremendous reduction in data size, thinning extracts the shape information of the characters. Thinning can be considered as conversion of off-line handwriting to almost on-line like data, with spurious branches and artifacts. Two basic approaches for thinning are 1) pixel wise and 2) nonpareil wise thinning [1]. Pixel wise thinning methods locally and iteratively process the image until one pixel wide skeleton remains. They are very sensitive to noise and may deform the shape of the character. On the other hand, the no pixel wise methods use some global information about the character during the thinning. They produce a certain median or centerline of the pattern directly without examining all the individual pixels. In clustering-based thinning method defines the skeleton of character as the cluster centers. Some thinning algorithms identify the singular points of the characters, such as end points, cross points, and loops. These points are the source of problems. In a nonpareil wise thinning, they are handled with global approaches. A survey of pixel wise and nonpareil wise thinning approaches is available in [9]. 3.2. Segmentation The preprocessing stage yields a clean document in the sense that a sufficient amount of shape information, high compression, and low noise on a normalized image is obtained. The next stage is segmenting the document into its subcomponents. Segmentation is an important stage because the extent one can reach in separation of words, lines, or characters directly affects the recognition rate of the script. There are two types of segmentation: external segmentation, which is the isolation of various writing units, such as paragraphs, sentences, or words, and internal segmentation, which is the isolation of letters, especially in cursively written words. 1) External Segmentation: It is the most critical part of the document analysis, which is a necessary step prior to the off-line CR Although document analysis is a relatively different research area with its own methodologies and techniques, segmenting the document image into text and non text regions is an integral part of the OCR software. Therefore, one who works in the CR field should have a general overview for document analysis techniques. Page layout analysis is accomplished in two stages: The first stage is the structural analysis, which is concerned with the segmentation of the image into blocks of document components (paragraph, row, word, etc.), and the second one is the functional analysis, which uses location, size, and various layout rules to label the functional content of document components (title, abstract, etc.) [12]. 2) Internal Segmentation: Although the methods have developed remarkably in the last decade and a variety of techniques have emerged, segmentation of cursive script into letters is still an unsolved problem. Character segmentation strategies are divided into three categories [13] is Explicit Segmentation, Implicit Segmentation and Mixed Strategies. 3.3. Feature Extraction Image representation plays one of the most important roles in a recognition system. In the simplest case, gray-level or binary images are fed to a recognizer. However, in most of the recognition systems, in order to avoid extra complexity and to increase the accuracy of the algorithms, a more compact and characteristic representation is required. For this purpose, a set of features is extracted for each class that helps distinguish it from other classes while remaining invariant to characteristic differences within the class[14]. A good survey on feature extraction methods for CR can be found [15].In the following, hundreds of document image representations methods are categorized into three major groups are Global Transformation and Series Expansion, Statistical Representation and Geometrical and Topological Representation . 3.4. Recognition Techniques CR systems extensively use the methodologies of pattern recognition, which assigns an unknown sample into a predefined class. Numerous techniques for CR can be investigated in four general approaches of pattern recognition, as suggested in [16] are Template matching, Statistical techniques, and Structural techniques and Neural networks. 3.5. Post Processing Until this point, no semantic information is considered during the stages of CR. It is well known that humans read by context up to 60% for careless handwriting. While preprocessing tries to clean the document in a certain sense, it may remove important information, since the context information is not available at this stage. The lack of context information during the segmentation stage may cause even more severe and irreversible errors since it yields meaningless segmentation boundaries. It is clear that if the semantic information were available to a certain extent, it would contribute a lot to the accuracy of the CR stages. On the other hand, the entire CR problem is for determining the context of the document image. Therefore, utilization of the context information in the CR problem creates a chicken and egg problem. The review of the recent CR research indicates minor improvements when only shape recognition of the character is considered. Therefore, the incorporation of contex t and shape information in all the stages of CR systems is necessary for meaningful improvements in recognition rates. The proposed System Architecture The proposed research methodology for off-line cursive handwritten characters is described in this section as shown in Figure 2. 4.1 Preprocessing There exist a whole lot of tasks to complete before the actual character recognition operation is commenced. These preceding tasks make certain the scanned document is in a suitable form so as to ensure the input for the subsequent recognition operation is intact. The process of refining the scanned input image includes several steps that include: Binarization, for transforming gray-scale images in to black white images, scraping noises, Skew Correction- performed to align the input with the coordinate system of the scanner and etc., The preprocessing stage comprise three steps: (1) Binarization (2) Noise Removal (3) Skew Correction Scanned Document Image Feature Extraction Bayesian Decision Theory Training and Recognition Pre-processing Binarization Noise Removal Skew correction Segmentation Line Word Character Recognition o/p Figure 2. Proposed System Architecture 4.1.1 Binarization Extraction of foreground (ink) from the background (paper) is called as threshold. Typically two peaks comprise the histogram gray-scale values of a document image: a high peak analogous to the white background and a smaller peak corresponding to the foreground. Fixing the threshold value is determining the one optimal value between the peaks of gray-scale values [1]. Each value of the threshold is tried and the one that maximizes the criterion is chosen from the two classes regarded as the foreground and back ground points. 4.1.2 Noise Removal The presence of noise can cost the efficiency of the character recognition system; this topic has been dealt extensively in document analysis for typed or machine-printed documents. Noise may be due the poor quality of the document or that accumulated whilst scanning, but whatever is the cause of its presence it should be removed before further Processing. We have used median filtering and Wiener filtering for the removal of the noise from the image. 4.1.3 Skew Correction Aligning the paper document with the co-ordinate system of the scanner is essential and called as skew correction. There exist a myriad of approaches for skew correction covering correlation, projection, profiles, Hough transform and etc. For skew angle detection Cumulative Scalar Products (CSP) of windows of text blocks with the Gabor filters at different orientations are calculated. Alignment of the text line is used as an important feature in estimating the skew angle. We calculate CSP for all possible 50X50 windows on the scanned document image and the median of all the angles obtained gives the skew angle. 4.2 Segmentation Segmentation is a process of distinguishing lines, words, and even characters of a hand written or machine-printed document, a crucial step as it extracts the meaningful regions for analysis. There exist many sophisticated approaches for segmenting the region of interest. Straight-forward, may be the task of segmenting the lines of text in to words and characters for a machine printed documents in contrast to that of handwritten document, which is quiet difficult. Examining the horizontal histogram profile at a smaller range of skew angles can accomplish it. The details of line, word and character segmentation are discussed as follows. 4.2.1 Line Segmentation Obviously the ascenders and descanters frequently intersect up and down of the adjacent lines, while the lines of text might itself flutter up and down. Each word of the line resides on the imaginary line that people use to assume while writing and a method has been formulated based on this notion shown fig.3. Figure 3. Line Segmentation The local minima points are calibrated from each Component to approximate this imaginary baseline. To calculate and categorize the minima of all components and to recognize different handwritten lines clustering techniques are deployed. 4.2.2 Word and Character Segmentation The process of word segmentation succeeds the line separation task. Most of the word segmentation issues usually concentrate on discerning the gaps between the characters to distinguish the words from one another other. This process of discriminating words emerged from the notion that the spaces between words are usually larger than the spaces between the characters in fig 4. Figure 4. Word Segmentation There are not many approaches to word segmentation issues dealt in the literature. In spite of all these perceived conceptions, exemptions are quiet common due to flourishes in writing styles with leading and trailing ligatures. Alternative methods not depending on the one-dimensional distance between components, incorporates cues that humans use. Meticulous examination of the variation of spacing between the adjacent characters as a function of the corresponding characters themselves helps reveal the writing style of the author, in terms of spacing. The segmentation scheme comprises the notion of expecting greater spaces between characters with leading and trailing ligatures. Recognizing the words themselves in textual lines can itself help lead to isolation of words. Segmentation of words in to its constituent characters is touted by most recognition methods. Features like ligatures and concavity are used for determining the segmentation points. 4.3 Feature Extraction The size inevitably limited in practice, it becomes essential to exploit optimal usage of the information stored in the available database for feature extraction. Thanks to the sequence of straight lines, instead of a set of pixels, it is attractive to represent character images in handwritten character recognition. Whilst holding discriminated information to feed the classifier, considerable reduction on the amount of data is achieved through vector representation that stores only two pairs of ordinates replacing information of several pixels. Vectorization process is performed only on basis of bi-dimensional image of a character in off-line character recognition, as the dynamic level of writing is not available. Reducing the thickness of drawing to a single pixel requires thinning of character images first. Character before and after Thinning After streamlining the character to its skeleton, entrusting on an oriented search process of pixels and on a criterion of quality of represe ntation goes on the vectorization process. The oriented search process principally works by searching for new pixels, initially in the same direction and on the current line segment subsequently. The search direction will deviate progressively from the present one when no pixels are traced. The dynamic level of writing is retrieved of course with moderate level of accuracy, and that is object of oriented search. Starting the scanning process from top to bottom and from left to right, the starting point of the first line segment, the first pixel is identified. According to the oriented search principle, specified is the next pixel that is likely to be incorporated in the segment. Horizontal is the default direction of the segment considered for oriented search. Either if the distortion of representation exceeds a critical threshold or if the given number of pixels has been associated with the segment, the conclusion of line segment occurs. Computing the average distance between the l ine segment and the pixels associated with it will yield the distortion of representation. The sequence of straight lines being represented through ordinates of its two extremities character image representation is streamlined finally. All the ordinates are regularized in accordance to the initial width and height of character image to resolve scale Variance. 4.4 Bayesian Decision Theories The Bayesian decision theory is a system that minimizes the classification error. This theory plays a role of a prior. This is when there is priority information about something that we would like to classify. It is a fundamental statistical approach that quantifies the tradeoffs between various decisions using probabilities and costs that accompany such decisions. First, we will assume that all probabilities are known. Then, we will study the cases where the probabilistic structure is not completely known. Suppose we know P (wj) and p (x|wj) for j = 1, 2à ¢Ã¢â€š ¬Ã‚ ¦n. and measure the lightness of a fish as the value x. Define P (wj |x) as the a posteriori probability (probability of the state of nature being wj given the measurement of feature value x). We can use the Bayes formula to convert the prior probability to the posterior probability P (wj |x) = Where p(x) P (x|wj) is called the likelihood and p(x) is called the evidence. Probability of error for this decision P (w1 |x) if we decide w2 P (w2|x) if we decide w1 P (error|x) = { Average probability of error P (error) = P (error) = Bayes decision rule minimizes this error because P (error|x) = min {P (w1|x), P (w2|x)} Let {w1. . . wc} be the finite set of c states of nature (classes, categories). Let {ÃŽÂ ±1. . . ÃŽÂ ±a} be the finite set of a possible actions. Let ÃŽÂ » (ÃŽÂ ±i |wj) be the loss incurred for taking action ÃŽÂ ±i when the state of nature is wj. Let x be the D-component vector-valued random variable called the feature vector. P (x|wj) is the class-conditional probability density function. P (wj) is the prior probability that nature is in state wj. The posterior probability can be computed as P (wj |x) = Where p(x) Suppose we observe x and take action ÃŽÂ ±i. If the true state of nature is wj, we incur the loss ÃŽÂ » (ÃŽÂ ±i |wj). The expected loss with taking action ÃŽÂ ±i is R (ÃŽÂ ±i |x) = which is also called the conditional risk. The general decision rule ÃŽÂ ±(x) tells us which action to take for observation x. We want to find the decision rule that minimizes the overall risk R = Bayes decision rule minimizes the overall risk by selecting the action ÃŽÂ ±i for which R (ÃŽÂ ±i|x) is minimum. The resulting minimum overall risk is called the Bayes risk and is the best performance that can be achieved. 4.5 Simulations This section describes the implementation of the mapping and generation model. It is implemented using GUI (Graphical User Interface) components of the Java programming under Eclipse Tool and Database storing data in Microsoft Access. For given Handwritten image character and convert to Binarization, Noise Remove and Segmentation as shown in Figure 5(a). Then after perform Feature Extraction, Recognition using Bayesian decision theory as shown in Figure5(b). Figure 5(a) Binarization, Noise Remove and Segmentation Figure 5(b) Recognition using Bayesian decision theory 5. Results and Discussion This database contains 86,272 word instances from an 11,050 word dictionary written down in 13,040 text lines. We used the sets of the benchmark task with the closed vocabulary IAM-OnDB-t13. There the data is divided into four sets: one set for training; one set for validating the Meta parameters of the training; a second validation set which can be used, for example, for optimizing a language model; and an independent test set. No writer appears in more than one set. Thus, a writer independent recognition task is considered. The size of the vocabulary is about 11K. In our experiments, we did not include a language model. Thus the second validation set has not been used. Table1. Shows the results of the four individual recognition systems [17]. The word recognition rate is simply measured by dividing the number of correct recognized words by the number of words in the transcription. We presented a new Bayesian decision theory for the recognition of handwritten notes written on a whiteboard. We combined two off-line and two online recognition systems. To combine the output sequences of the recognizers, we incrementally aligned the word sequences using a standard string matching algorithm. Evaluation of proposed Bayesian decision theory with existing recognition systems with respect to graph is shown in figure 6. Table 1. Results of four individuals recognition systems System Method Recognition rate Accuracy 1st Offline Hidden Markov Method 66.90% 61.40% 1st Online ANN 73.40% 65.10% 2nd Online HMM 73.80% 65.20% 2nd Offline Bayesian Decision theory 75.20% 66.10% Figure 6 Evaluation of Bayesian decision theory with existing recognition systems Then each output position the word with the most occurrences has been used as the  ¬Ã‚ nal result. With the Bayesian decision theory could statistically signi ¬Ã‚ cantly increase the accuracy. 6. Conclusion We conclude that the proposed approach for offline character recognition, which fits the input character image for the appropriate feature and classifier according to the input image quality. In existing system missing characters cant be identified. Our approach using Bayesian Decision Theories which can classify missing data effectively which decrease error in compare to hidden Markova model. Significantly increases in accuracy levels will found in our method for character recognition