Sökning: "information"

Visar resultat 31 - 35 av 19932 avhandlingar innehållade ordet information.

1. 31. An Information System in its Organisational Contexts : A Systemic Semiotic Longitudinal Case Study

   Författare :Rodney Clarke; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; information systems; longitudinal case study; organisational contexts; organisational semiotics; semiotics; social semiotics; systemic functional linguistics; systemic semiotics; workpractices; Information Systems; Informatik;

   Sammanfattning : This dissertation develops a new form of Systems Analysis based on Systemic Semiotics. Systemic Semiotics, a combination of Social Semiotics and Systemic Functional Linguistic theories, can be used to provide contextual descriptions linking the operations of information systems to their specific situational and organisational contexts. LÄS MER

3. 32. Securing Information Assets : Understanding, Measuring and Protecting against Social Engineering Attacks

   Författare :Marcus Nohlberg; Benkt Wangler; Stewart Kowalski; Angela Sasse; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer and systems science; Data- och systemvetenskap; Computer and Systems Sciences; data- och systemvetenskap; Teknik;

   Sammanfattning : Social engineering denotes, within the realm of security, a type of attack against the human element during which the assailant induces the victim to release information or perform actions they should not. Our research on social engineering is divided into three areas: understanding, measuring and protecting. LÄS MER

4. 33. Information, Security, Privacy, and Anonymity : Definitional and Conceptual Issues

   Författare :Björn Lundgren; Niklas Möller; Sven Ove Hansson; Kevin Macnish; KTH; []
   Nyckelord :HUMANIORA; HUMANITIES; definitions; distinctions; conceptual analysis; philosophy of information; philosophy of risk; security; information; information security; semantics; semantic information; veridicality thesis; informativity; appropriate access; CIA; privacy; control; context; pro tanto good; social relations; anonymity; deanonymization; ability to be anonymous; Filosofi; Philosophy;

   Sammanfattning : This doctoral thesis consists of five research papers that address four tangential topics, all of which are relevant for the challenges we are facing in our socio-technical society: information, security, privacy, and anonymity. All topics are approached by similar methods, i.e. with a concern about conceptual and definitional issues. LÄS MER

5. 34. Information and financial markets

   Författare :Stefan Anchev; Jörgen Hellström; Rickard Olsson; Juha-Pekka Kallunki; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Information; dissemination of information; production of private information; information disadvantage; investor base; stock return anomalies; stock price informativeness; quantity of firm disclosure; less sophisticated individual investors;

   Sammanfattning : The results in this thesis are consistent with the hypotheses that: 1) the incomplete dissemination of information across investors helps in explaining the occurrence and the persistence of cross-sectional stock return anomalies, 2) the properties of the investor base of a stock have implications for the informativeness of the stock's price and 3) a greater quantity of firm disclosure places less sophisticated investors at an information disadvantage. Overall, the thesis provides new empirical evidence about the role of information in financial markets. LÄS MER

7. 35. Secure and Privacy-Preserving Cloud-Assisted Computing

   Författare :Georgia Tsaloli; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; differential privacy; decentralization; verifiability; privacy-preservation; secure aggregation; secret sharing; cloud computing; privacy;

   Sammanfattning : Smart devices such as smartphones, wearables, and smart appliances collect significant amounts of data and transmit them over the network forming the Internet of Things (IoT). Many applications in our daily lives (e.g., health, smart grid, traffic monitoring) involve IoT devices that often have low computational capabilities. LÄS MER