Powerful classifiers as neural networks have long been used to recognise images; these images might depict objects like animals, people or plain text. Distorted images affect the neural network's ability to recognise them, they might be distorted or changed due to distortions related to the camera.Camera related distortions, and how they affect the accuracy, have previously been explored. Recently, it has been proven that images can be intentionally made harder to recognise, an effect that last even after they have been photographed.Such images are known as adversarial examples.The purpose of this thesis is to evaluate how well a neural network can recognise adversarial examples which are also distorted. To evaluate the network, the adversarial examples are distorted in different ways and thereafter fed to the neural network.Different kinds of distortions (rotation, blur, contrast and skew) were used to distort the examples. For each type and strength of distortion the network's ability to classify was measured.Here, it is shown that all distortions influenced the neural network's ability to recognise images.It is concluded that the type and strength of a distortion are important factors when classifying distorted adversarial examples, but also that some distortions, rotation and skew, are able to keep their characteristic influence on the accuracy, even if they are influenced by other distortions.

Much of what has been researched on Shona fiction has been limited to literature published before independence. The current research endeavours to assess the treatment of socio-economic issues as conveyed through fiction published since 1990. This fiction focuses on socio-economic issues in both pre-colonial and independent Zimbabwe. The study endeavours to establish if writers who focus on these issues in the pre-colonial era have been able to reclaim a complicated picture of the African pasts. It also discusses fiction that focuses on post-independence experiences; such as extent of the impact of empowerment brought about by independence, continued poverty among Africans, emancipation of the female being and the HIV and AIDS pandemic. Here, it strives to ascertain if the writers have identified the causes and offer meaningful solutions to these. The study observes that contemporary novelists on the Shona pasts have reclaimed more realistic ‘worlds’ when compared to their predecessors who have largely presented distorted images of these pasts. On the outcome of independence, two groups portray it as a total success and a total failure respectively, whilst the third and more successful group gives a balanced exposition. Fiction on poverty among contemporary Africans falls into two classes, namely rural and urban. The former still suffers from the heavy influence of colonial myths as it only highlights the effects of poverty without situating them in their tension-ridden historical context. The latter provides important sociological information on the plight of the characters but is lacking when it comes to suggesting ways of alleviating such poverty. On female empowerment, it emerges that while some writers are for women empowerment, others are against it. Women writers are better at explaining problems of women. However, both groups are still unable to identify the root cause of the incapacitation of women. On HIV and AIDS, whilst male writers demonstrate a wider social vision on the factors that disempower society against the spread and curbing of the virus, female authors still fall in the trap of blaming both men and Shona traditional customs. Overall, it emerges that contemporary Shona writers reveal contradictory modes in articulating these issues. / African Languages / Thesis (D. Litt et Phil. (African Languages))

Much of what has been researched on Shona fiction has been limited to literature published before independence. The current research endeavours to assess the treatment of socio-economic issues as conveyed through fiction published since 1990. This fiction focuses on socio-economic issues in both pre-colonial and independent Zimbabwe. The study endeavours to establish if writers who focus on these issues in the pre-colonial era have been able to reclaim a complicated picture of the African pasts. It also discusses fiction that focuses on post-independence experiences; such as extent of the impact of empowerment brought about by independence, continued poverty among Africans, emancipation of the female being and the HIV and AIDS pandemic. Here, it strives to ascertain if the writers have identified the causes and offer meaningful solutions to these. The study observes that contemporary novelists on the Shona pasts have reclaimed more realistic ‘worlds’ when compared to their predecessors who have largely presented distorted images of these pasts. On the outcome of independence, two groups portray it as a total success and a total failure respectively, whilst the third and more successful group gives a balanced exposition. Fiction on poverty among contemporary Africans falls into two classes, namely rural and urban. The former still suffers from the heavy influence of colonial myths as it only highlights the effects of poverty without situating them in their tension-ridden historical context. The latter provides important sociological information on the plight of the characters but is lacking when it comes to suggesting ways of alleviating such poverty. On female empowerment, it emerges that while some writers are for women empowerment, others are against it. Women writers are better at explaining problems of women. However, both groups are still unable to identify the root cause of the incapacitation of women. On HIV and AIDS, whilst male writers demonstrate a wider social vision on the factors that disempower society against the spread and curbing of the virus, female authors still fall in the trap of blaming both men and Shona traditional customs. Overall, it emerges that contemporary Shona writers reveal contradictory modes in articulating these issues. / African Languages / Thesis (D. Litt et Phil. (African Languages))