This diploma thesis focuses on the topic of posthumous user data management concerning social media platforms. This topic is rarely discussed from the viewpoint of new media studies in academic literature. My thesis endeavours to unveil, contextualize, and critically assess the development of the posthumous data policies in order to uncover the level of control users and survivors have over the deceased users' data. Thus, three case studies of chronological posthumous policy development of major social media (Facebook, Twitter, and LinkedIn) were conducted and results were compared. The analysis has shown that platforms are rather reluctant to change their posthumous policies. One of the primary triggers for change comes from the users' feedback. Across all three cases every platform provided limited or no information about these policies in their terms of use or privacy policies. The case studies demonstrated that users have very limited choices regarding their data after death directly on the examined social media platforms. Individuals who were close to the deceased account users have the ability to request account deletion or have limited access to the account granted by the platform. The level of data preservation demanded by platforms seems dependent on a given social media's communication specificity...

The exponential rise in the generation of data has introduced many new areas of research including data science, data engineering, machine learning, artificial in- telligence to name a few. It has become important for any industry or organization to precisely understand and analyze the data in order to extract value out of the data. The value of the data can only be realized when it is put into practice in the real world and the most common approach to do this in the technology industry is through software engineering. This brings into picture the area of privacy oriented software engineering and thus there is a rise of data protection regulation acts such as GDPR (General Data Protection Regulation), PDPA (Personal Data Protection Act), etc. Many organizations, governments and companies who have accumulated huge amounts of data over time may conveniently use the data for increasing business value but at the same time the privacy aspects associated with the sensitivity of data especially in terms of personal information of the people can easily be circumvented while designing a software engineering model for these types of applications. Even before the software engineering phase for any data processing application, often times there can be one or many data sharing agreements or privacy policies in place. Every organization may have their own way of maintaining data privacy practices for data driven development. There is a need to generalize or categorize their approaches into tactics which could be referred by other practitioners who are trying to integrate data privacy practices into their development. This qualitative study provides an understanding of various approaches and tactics that are being practised within the industry for privacy preserving data science in software engineering, and discusses a tool for data usage monitoring to identify unethical data access. Finally, we studied strategies for secure data publishing and conducted experiments using sample data to demonstrate how these techniques can be helpful for securing private data before publishing. / Graduate

Ziel der Arbeit ist die Entwicklung und Prüfung eines semantischen Informationssystems zur Unterstützung des Informations- und Wissenstransfers bei kollektiver, internetbasierter Informationsarbeit – sowohl innerhalb des Teams, als auch in dessen Übertragung in das Unternehmen. Als Informationssystem wird dabei ein System verstanden, welches die menschlichen Aufgabenträger, die organisationale und technische Ausgestaltung, aber auch die zu unterstützende Aufgabe determiniert und beinhaltet und von der Systemumwelt abgrenzt. Der Fokus der Arbeit ist in den Gegenstandsbereich der Wirtschaftsinformatik einzuordnen. Die Wirtschaftsinformatik besitzt nach dem Verständnis des Autors einen transdisziplinären Charakter und der Nukleus der Fachdisziplin ist als Intermediär verschiedener beteiligter, angrenzender Disziplinen zu verstehen. So sind bei der Betrachtung der avisierten Arbeit ebenso Einflüsse der Betriebswirtschaftslehre, der Informations- und Kommunikationstechno- logie, soziologischer sowie psychologischer Aspekte und nicht zuletzt linguistischer Grundlagen von Interesse für das Resultat bzw. Einflussdimensionen des Ergebnisses.:GRUNDLEGUNG I Problemkontext II Motivation zu dieser Arbeit III Ziel der Arbeit IV Forschungsdesign V Gang der Arbeit TEIL A: VERSTEHEN, LERNEN, WISSEN 1 Wissen und dessen Konstitution 1.1 Gegenstand des Wissens 1.2 Organisationale Epistemologie von Wissen 1.3 Einige Daten und Informationen zum Wissen 1.4 Die Natur des Wissens 1.5 Systematisierung der Arten von Wissen 1.6 Implikationen für diese Arbeit 2 Kommunikation & Verstehen 2.1 Partnerorientiertes Handeln 2.2 Kommunikation, Sprache und Textproduktion 2.3 Wahrnehmen, Verstehen & Rezipieren 2.4 Symbolische Interaktion 2.5 Barrieren der symbolischen Interaktion 2.6 Konsolidierung 3 Wissen & Lernen 3.1 Lernen in Schleifen 3.2 Theorien des individuelles Lernen 3.3 Kollektives Lernen 3.4 Die lernende Organisation 3.5 Kontinuum des Lernens 4 Wissenstransfer und die lernende Organisation 4.1 Strategien des Wissensmanagements 4.2 Wissens(re-)konstruktion 4.3 Erfolgsfaktoren für Wissenstransfer 4.4 Zyklische Wissensentstehung 4.5 Organisationale Wissensschaffung TEIL B: KOLLEKTIVE INFORMATIONSARBEIT & ORGANISATIONALES LERNEN 5 Informationsarbeit & Wissensschaffung 5.1 Vom Suchen und Finden von Informationen 5.2 Information Literacy & Recherchekompetenz 5.3 Informationsarbeit 5.4 Recherchestrategien 5.5 Phasen der internetbasierten Recherche 6 Organisation kollektiver Informationsarbeit 6.1 Intensität von Zusammenarbeit 6.2 Formale & informelle Arbeitsgruppen 6.3 Informationsarbeit im Team 6.4 Die Aufgabe als konstituierendes Merkmal 6.5 Individuelle Dispositionen 6.6 Gruppendynamik im Projektteam 6.7 Externe Unterstützung des Teams 6.8 Soziotechnischer Rahmen 6.9 Kollektive, internetbasierte Informationsarbeit 7 Die suchende Hypertextorganisation 7.1 Die organisationale Wissensbasis 7.2 Soziales Kapital & soziale Netzwerke 7.3 Wissen aus kollektiver Informationsarbeit 7.4 Kollektive Informationsarbeit und die lernende Organisation 7.5 Die lernende Organisation als Community of Communitys TEIL C: AUTOMATISIERTE KONTEXTMODELLIERUNG KOLLEKTIVER INFORMATIONSARBEIT 8 Konzeptuelle & technische Prämissen 8.1 Kernfunktionen der kollektiven Rechercheumgebung 8.2 Multidimensionalität vs. Multiperspektivität 8.3 Das Kontinuum semantischer Strukturmodelle 8.4 Konzepte der technischen Realisierung 9 Kontextschaffung bei kollektiver Informationsarbeit 9.1 Rechercheprozess und formale Objekte 9.2 Kollektive Terminologiearbeit und formale Rechercheobjekte 9.3 Kollektive Schaffung informationeller Mehrwerte 9.4 Explikation von Wissensträgern 10 Konzeption des soziotechnischen Informationssystems 10.1 Aufbau und Grundlegung des Systems 10.2 Grammatisches Metamodell – das Template der Templates 10.3 Templates der Nutzerkontexte und Gültigkeiten 10.4 Konzeptuelle Templates des Rechercheprozesses 10.5 Konzeptuelle Templates der kollektiven Informationsarbeit 10.6 Das Object Repository und die realen Objekte 10.7 Anwendung, Vernetzung & Synopsis des Systems 11 Wissensrepräsentation und kontextbasierte Wiederverwendung 11.1 Grundlagen der Wissensrepräsentation 11.2 Barrieren der Kognition expliziter Wissensrepräsentationen 11.3 Repräsentationsformen bei kollektiver Informationsarbeit 11.4 Dissemination & Zusammenarbeit: Nutzung der Rechercheumgebung 11.5 Six Pieces kollektiver Informationsarbeit für die lernende Organisation SYNOPSIS 12 Erkenntnisse der Arbeit und kritische Würdigung 12.1 Grundlegende Erkenntnisse der theoriegeleiteten Exploration 12.2 Hypothesenbildung: Synopsis der Erfahrungen 12.3 Hypothesenprüfung: Machbarkeit des Systems

Modeling the "thick description" of photographs began at the intersection of personal and institutional descriptions. Comparing institutional descriptions of particular photos that were also used in personal online conversations was the initial phase. Analyzing conversations that started with a photographic image from the collection of the Library of Congress (LC) or the collection of the Manchester Historic Association (MHA) provided insights into how cultural heritage institutions could enrich the description of photographs by using informal descriptions such as those applied by Facebook users. Taking photos of family members, friends, places, and interesting objects is something people do often in their daily lives. Some photographic images are stored, and some are shared with others in gatherings, occasions, and holidays. Face-to-face conversations about remembering some of the details of photographs and the event they record are themselves rarely recorded. Digital cameras make it easy to share personal photos in Web conversations and to duplicate old photos and share them on the Internet. The World Wide Web even makes it simple to insert images from cultural heritage institutions in order to enhance conversations. Images have been used as tokens within conversations along with the sharing of information and background knowledge about them. The recorded knowledge from conversations using photographic images on Social Media (SM) has resulted in a repository of rich descriptions of photographs that often include information of a type that does not result from standard archival practices. Closed group conversations on Facebook among members of a community of interest/practice often involve the use of photographs to start conversations, convey details, and initiate story-telling about objets, events, and people. Modeling of the conversational use of photographic images on SM developed from the exploratory analyses of the historical photographic images of the Manchester, NH group on Facebook. The model was influenced by the typical model of Representation by Agency from O'Connor in O'Connor, Kearns, and Anderson Doing Things with Information: Beyond Indexing and Abstracting, by considerations of how people make and use photographs, and by the notion of functionality from Patrick Wilson's Public Knowledge, Private Ignorance: Toward a Library and Information Policy. The model offers paths for thickening the descriptions of photographs in archives and for enriching the use of photographs on social media.

(in English) The subject of the Diploma thesis is the process of sharing of economic information and knowledge suitable for corporate governance. A special attention is focused on an effective utilization and development of information and communication technologies (ICT). At the beginning, information society and basic terms are defined, such as information economy, economics of information, information management and knowledge management. Furthermore, the strategic importance of enterprise information systems and other solutions for improving business information processes are described in general. The final chapters deal with Competitive Intelligence (CI) and Business Intelligence (BI) and contain the overview and analyses of the most important information products of economic information from commercial and non-commercial sectors [Author's abstract].

<p>The availability of abundant multimodal data, including textual, visual, and sensor-based information, holds the potential to improve decision-making in diverse domains. Extracting data-driven decision-making information from heterogeneous and changing datasets in real-world data-centric applications requires achieving complementary functionalities of multimodal data integration, knowledge extraction and mining, situationally-aware data recommendation to different users, and uncertainty management in the open-world setting. To achieve a system that encompasses all of these functionalities, several challenges need to be effectively addressed: (1) How to represent and analyze heterogeneous source contents and application context for multimodal data recommendation? (2) How to predict and fulfill current and future needs as new information streams in without user intervention? (3) How to integrate disconnected data sources and learn relevant information to specific mission needs? (4) How to scale from processing petabytes of data to exabytes? (5) How to deal with uncertainties in open-world that stem from changes in data sources and user requirements?</p> <p><br></p> <p>This dissertation tackles these challenges by proposing novel frameworks, learning-based data integration and retrieval models, and algorithms to empower decision-makers to extract valuable insights from diverse multimodal data sources. The contributions of this dissertation can be summarized as follows: (1) We developed SKOD, a novel multimodal knowledge querying framework that overcomes the data representation, scalability, and data completeness issues while utilizing streaming brokers and RDBMS capabilities with entity-centric semantic features as an effective representation of content and context. Additionally, as part of the framework, a novel text attribute recognition model called HART was developed, which leveraged language models and syntactic properties of large unstructured texts. (2) In the SKOD framework, we incrementally proposed three different approaches for data integration of the disconnected sources from their semantic features to build a common knowledge base with the user information need: (i) EARS: A mediator approach using schema mapping of the semantic features and SQL joins was proposed to address scalability challenges in data integration; (ii) FemmIR: A data integration approach for more susceptible and flexible applications, that utilizes neural network-based graph matching techniques to learn coordinated graph representations of the data. It introduces a novel graph creation approach from the features and a novel similarity metric among data sources; (iii) WeSJem: This approach allows zero-shot similarity matching and data discovery by using contrastive learning<br> to embed data samples and query examples in a high-dimensional space using features as a novel source of supervision instead of relevance labels. (3) Finally, to manage uncertainties in multimodal data management for open-world environments, we characterized novelties in multimodal information retrieval based on data drift. Moreover, we proposed a novelty detection and adaptation technique as an augmentation to WeSJem.<br> </p> <p>The effectiveness of the proposed frameworks, models, and algorithms was demonstrated<br> through real-world system prototypes that solved open problems requiring large-scale human<br> endeavors and computational resources. Specifically, these prototypes assisted law enforcement officers in automating investigations and finding missing persons.<br> </p>

Bakgrund &amp; problem: Controllerfunktionen är i litteraturen ett omtalat ämne och det finns delade meningar om vad funktionen bör innefatta och hur utvecklingen sett ut. Det saknas däremot studier som undersöker hur funktionen samspelar med ledningens behov samt huruvida det kan uppstå spänningar mellan funktion och behov. Det är relevant att studera eftersom vi vet att det förekommer en agent-principalrelation i offentlig sektor men inte huruvida det kan kopplas till controllern och ledningen. Det medför att det finns en kunskapslucka att fylla avseende balansgången mellan funktion och behov samt spänningar när dessa kolliderar. Syftet: Syftet med studien är att studera controllers funktion i relation till ledningens behov för att kunna ta reda på vilka spänningar som kan uppstå när funktion och behov inte samspelar för att kunna förstå hur controllers balanserar kraven utifrån ledningens behov. Metod: För genomförande av studien har en kvalitativ forskningsansats applicerats. För att besvara frågeställningarna och syftet med studien har en intervjustudie genomförts med tio olika controllers och sex individer från ledningen i totalt sju olika svenska myndigheter. Studien har genomförts med semistrukturerade intervjuer och är uppbyggd utifrån fyra huvudsakliga avsnitt: teoretisk referensram, empiriska data, analys och slutligen resultat &amp; slutsats. Den teoretiska referensramen beskriver controllers funktion inom de fyra arbetsområdena: informationshantering, planering &amp; uppföljning, riskhantering samt strategiskt beslutsfattande. Empiriska data har sammanställts genom en omfattande empirigenomgång med fokus på controllers uppfattning samt ledningen uppfattning utifrån controllers fyra arbetsområden. Syftet med avsnittet är att skapa förståelse för controllers och ledningens uppfattning. Vidare presenteras analysavsnittet som avser att beskriva hur begreppsparet, funktion och behov, samspelar med varandra samt att identifiera spänningar. Slutligen konkluderas studiens resultat i ett slutsatsavsnitt för att besvara frågeställningarna. Slutsats: Studien konkluderar att spänningar kan uppstå mellan controllerfunktionen och ledningens behov när begreppsparet inte matchar varandra. De främsta spänningarna som identifierats är: agent-pricnipalproblematik, egenintresse, informationsasymmetri samt olika uppfattningar om funktionens innebörd. Vidare kan slutsatsen dras att controllern balanserar funktion gentemot ledningen. Balansering görs främst genom tydlig kommunikation, frekvent dialog samt ömsesidiga förväntningar. / Background &amp; problem: The controller function is a discussed topic in the literature and there are divided opinions about what the function should include and how the development has looked. However, there is a lack of studies that examine how the function interacts with the management's needs and whether tensions can arise between function and needs. It is relevant to study because we know that there is an agent-principal relation in the public sector but not whether it can be linked to the controller and management. This means that there is a knowledge gap to be filled regarding the balance between function and needs and tensions when these collide. Purpose: The purpose of this study is to study the controller's function in relation to management's needs to find out what tensions can arise when function and needs do not work together in order to understand how the controller balances the requirements based on management's needs. Method: For the implementation of the study, a qualitative research approach has been applied. To answer the research questions and the purpose of the study, an interview study has been carried out with ten different controllers and six individuals from management in seven different Swedish authorities. The interview study has been conducted with semi-structured interviews and is structured based on four main sections: Theoretical reference frame, empirical data, analysis and finally conclusion &amp; results. The theoretical reference frame describes the controller's function within the four work areas: information management, planning &amp; control, risk management and strategic decision-making. The empirical data has been compiled through an extensive empirical review with a focus on the controller's perception of the management in contrast based on the controller's four work areas. The purpose of the section is to create an understanding of the controller's and management's view. Furthermore, the analysis section is presented, which intends to describe how the pair of concepts: function and need, interact with each other and to identify tensions. Finally, the results of the study are concluded in a conclusion section to answer the research questions. Conclusion: The study concludes that tensions can arise between the controller function and management's needs when the pair of concepts do not match each other. The main tensions identified are agent-principal problem, self-interest, information asymmetry and different perceptions of the function's meaning. Furthermore, the conclusion can be drawn that the controller balances its function against management needs. Balancing is mainly done through clear communication, frequent dialogue, and mutual expectations.

Der Computer ersetzt in den letzten Jahrzehnten zunehmend analoge Schreibwerkzeuge und Kommunikationsmittel. Das hat auch Auswirkungen auf den Schaffensprozess von Schriftstellern, die ihre Aufzeichnungen immer häufiger als digitale Objekte hinterlassen. Für Literaturarchive stellt sich folglich die Aufgabe, zukünftig auch digitale Schriftstellernachlässe zu übernehmen und zu archivieren und hierfür eine Langzeitzeitarchivierungs-Strategie zu entwickeln. Die vorliegende Arbeit beschäftigt sich mit dem Zeitraum vor der Übernahme eines Nachlasses durch ein Literaturarchiv und stellt die Frage, welche Maßnahmen Nachlasskuratoren in Zusammenarbeit mit Schriftstellern ergreifen können, um die Langzeitarchivierung zu ermöglichen. Nachlässe sind in diesem Zeitraum noch die persönlichen Archive von Schriftstellern. Der Eingriff von Seiten der Kuratoren in persönliche Archive wird in dieser Arbeit als präkustodiale Intervention bezeichnet. Die Arbeit erörtert zunächst die theoretischen Grundlagen dieser Fragestellung und arbeitet die Notwendigkeit der präkustodialen Intervention in Schriftstellerarchive heraus. Anhand eines Literaturberichtes zeigt sie, dass der Forschungsstand in Deutschland, Österreich und der Schweiz im Vergleich zu den englischsprachigen Ländern defizitär ist und identifiziert Ursachen für diesen Befund. Zudem werden aus der Literatur mögliche Maßnahmen der präkustodialen Intervention entnommen und weiterentwickelt. Daraufhin überprüfen Experteninterviews in ausgewählten Literaturarchiven sowie eine Schriftsteller-Befragung diesen Befund und reichern ihn mit weiteren Daten an. Basierend auf den Ergebnissen der Literaturrecherche und des empirischen Teils wird die Einrichtung einer Cloud-basierten Arbeits- und Archivierungsumgebung für Schriftsteller als Hauptbestandteil einer Interventions-Strategie für Literaturarchive vorgeschlagen. / In recent decades, the computer has been displacing increasingly analogue writing tools and means of communication. This has an impact on the creative process of writers as well who leave their records more and more as digital objects. Therefore, special collections are being confronted with the task to acquire and archive digital papers in the future and to develop a digital preservation strategy for them. The present thesis deals with the period before the acquisition of papers and manuscripts by a special collection and brings up the question what kind of measures curators could take in cooperation with writers in order to make digital preservation possible. During this period, papers are still the personal archives of writers. The intervention in personal archives on the part of the curators is referred to as pre-custodial intervention. The work initially discusses the theoretical foundations of this question and exposes the need of pre-custodial intervention in writers archives. By means of a literature review the thesis shows that the state of research in Germany, Austria and Switzerland compared to English-speaking countries is deficient and identifies reasons for this finding. In addition, possible actions of pre-custodial intervention are taken from the literature and developed further. Thereupon, expert interviews in selected special collections as well as an online survey of writers review this findings and fill them with other data. Based on the results of the literature review and the empirical part, a cloud-based archiving and working environment for writers is proposed as the main component of an intervention strategy for special collections.

This research is concerned with the nature and extent of problems experienced by detectives in the collection, processing and utilisation of crime information for the investigation of crime. The problems gave rise to poor detective performance. The development of information-led policing offers an alternative to the traditional ”reactive” model of investigation of crime. Information-led policing advocates the targeting, gathering, analysis and dissemination of information which is used to inform decisions about the prioritisation of problems and allocation of resources to address the problems (Cope, as quoted by Alison, 2005:93). The purpose of this study is to determine the strengths and weaknesses in the collection, processing and utilisation of crime information at the Rustenburg Detective Service, to find new knowledge that can improve the situation, and to apply the found knowledge to enhance the performance of detectives. / Criminology / M.Tech. (Forensic Investigation)

The aim of this study is to conduct a thorough theoretical study on the relevant aspects involved in knowledge management and organisational learning, and to assess the maturity level of knowledge management within the South African steel industry. Various aspects of knowledge, knowledge management and organisational learning with specific relation to sustainable competitive advantage are discussed in the literature study. During the literature research several factors which either promote or hinder the effective management of knowledge were identified and a list of lessons learned by other successful knowledge focused companies, are discussed. The critical success factors for a successful knowledge management program are also discussed. Knowledge can create a sustainable competitive advantage within an organisation, if successfully applied to make value adding decisions and to enable learning, and if it is applied to make decisions which are superior to that of its rivals across the supply chain. An integrated approach needs to be followed when KM is pursued and the knowledge must be applied to make value added decisions and facilitate learning across all processes in the value chain. The focus must be to retain an organisation’s tacit knowledge as this is a key success factor to ensure a sustainable competitive advantage. The study includes research on whether knowledge management is effectively used as a sustainable competitive advantage in the South African steel industry. The maturity level of the application of knowledge and learning principles implemented within the South African steel industry is assessed and compared to the maturity level of ArcelorMittal, Monlevade, located in Brazil. A survey was designed and distributed to determine the knowledge management and organisational learning maturity levels at two steel facilities of ArcelorMittal in South Africa and one facility in Brazil. The key problem areas as identified through the empirical research are discussed and it is concluded that South African facilities do not effectively use knowledge management as a sustainable competitive advantage. The maturity level of knowledge management in ArcelorMittal, South Africa is low compared to the maturity at Monlevade and rival companies such as Tata and Posco steel. A significant effort needs to be made in order to allow the effective creation, acquisition, sharing and leveraging of knowledge within the South African steel facilities. The key factors which constrain effective knowledge management is related to ineffective Human Resource policies, organisation structure, lack of knowledge exchange forums, collaboration and communication, coaching, and a lack of incentives to share tacit knowledge. It is also evident that knowledge is not seen as a sustainable competitive advantage by many respondents and that they perceive they do not have the time or capacity to transfer knowledge. Ten practical design principles were constructed and a knowledge management framework was developed to guide South African steel companies during the design and execution of a knowledge management programme which will ensure that knowledge management will result into a sustainable competitive advantage. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2011.