Στην παρούσα εργασία αντιμετωπίζουμε την διαδικασία εξατομικευμένης αναζήτησης από την πλευρά της σημασιολογίας και του περιεχομένου των σελίδων. Συγκεκριμένα γίνεται χρήση μιας θεματικής ιεραρχίας για την αυτόματη δημιουργία των προφίλ αναζήτησης των χρηστών και χρησιμοποιείται η ίδια ιεραρχία για τον θεματικό χαρακτηρισμό του περιεχομένου ενός κειμένου. Στηριζόμενοι σε μία συνδυασμένη ανάλυση των ενδιαφερόντων του χρήστη και των θεμάτων των σελίδων εξατομικεύουμε τα ανακτώμενα αποτελέσματα δίνοντας προτεραιότητα σε εκείνα τα αποτελέσματα τα οποία το θεματικό τους περιεχόμενο ανταποκρίνεται στο προφίλ του χρήστη. / This work discusses the process of personalized search under the view point of the semantics content of the web pages. In details, a thematic hierarchy is being used to create automatically user search profiles and the same hierarchy is being used to thematic characterize the content of documents. Based on a combined analysis of users’ interests and the thematic content of web pages, we personalize the results giving priority in those results which their thematic content response to the user profile.

This study delves into the syntactic notion of subject relation in Shona with the aim of characterizing and defining it. This is done through analysing data collected from two of the Shona speaking provinces in Zimbabwe, namely, Harare and Masvingo. The data collection procedures involved the tape recording of oral interviews as well as doing selective listening to different speeches. The data were then analysed using the projection principle, noun phrase movement transformational rule as well as the selectional principles established for the subject relation in the other well researched natural languages. The research found out that there is no one single rule that can be used to determine the subject of every possible Shona sentence. One has to make use of all the seven selectional principles established in the well-researched natural languages. The research managed to assess the applicability of the selectional rules in different sentences. The rules were then ranked according to their reliability in determining the subjects of each of the various Shona sentences. It also came to light that the Shona subject relation has a number of sub-categories as a result of the various selectional rules involved in determining them. These were also ranked in a hierarchy of importance as they apply in the language. For instance, whilst some are assigned to their host words at the deep structure or underlying level of syntax, some are assigned at the surface structure level and can be shifted easily. It also emerged that the freedom of the subject relation in the language varies with the sub-category of the relation. It came to light as well that in Shona both noun phrases (NPs) and non-NPs are assigned the subject role. / African Languages / D. Litt. et Phil. (African Languages)

This study delves into the syntactic notion of subject relation in Shona with the aim of characterizing and defining it. This is done through analysing data collected from two of the Shona speaking provinces in Zimbabwe, namely, Harare and Masvingo. The data collection procedures involved the tape recording of oral interviews as well as doing selective listening to different speeches. The data were then analysed using the projection principle, noun phrase movement transformational rule as well as the selectional principles established for the subject relation in the other well researched natural languages. The research found out that there is no one single rule that can be used to determine the subject of every possible Shona sentence. One has to make use of all the seven selectional principles established in the well-researched natural languages. The research managed to assess the applicability of the selectional rules in different sentences. The rules were then ranked according to their reliability in determining the subjects of each of the various Shona sentences. It also came to light that the Shona subject relation has a number of sub-categories as a result of the various selectional rules involved in determining them. These were also ranked in a hierarchy of importance as they apply in the language. For instance, whilst some are assigned to their host words at the deep structure or underlying level of syntax, some are assigned at the surface structure level and can be shifted easily. It also emerged that the freedom of the subject relation in the language varies with the sub-category of the relation. It came to light as well that in Shona both noun phrases (NPs) and non-NPs are assigned the subject role. / African Languages / D. Litt. et Phil. (African Languages)