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This doctoral dissertation presents a range of results concerning efficient algorithms and data structures for string processing, including several schemes contributing to sequential data compression. It comprises both theoretic results and practical implementations. We study the suffix tree data structure, presenting an efficient representation and several generalizations. This includes augmenti
In many companies and organisations the planning and control of purchasing, production, inventory and transportation is of great importance. In a manufacturing industry it is not unusual that the value of the total stock of end products and parts in production is larger than the value of the production system itself with its machines and factory buildings. Efficient control of inventory and produc
Many philosophers have claimed that extensive or additive measurement is incompatible with the existence of "higher values", any amount of which is better than any amount of some other value. In this paper, it is shown that higher values can be incorporated in a non-standard model of extensive measurement, with values represented by sets of ordered pairs of real numbers, rather than by single real
Modern content distribution networks face an increasing multitude of content generators. In order to reach the minimal content retrieval latency in the content distribution networks, content shall be disseminated towards consumers based on its popularity taken from the content distribution networks. This, Combined with dividing media into chunks (heterogeneous valuation of information) and contact
Johan Anselmsson och Burak Tunca på Ekonomihögskolan vid Lunds universitet har i samarbete med undersökningsföretaget Norstat en vecka efter Amazons lansering i Sverige gjort en uppföljning av vad som hänt sedan en liknande mätning gjordes i september, men då i samband med att spekulationer om Amazons intåg i Sverige tog fart.
Denna artikel bygger på aktuell internationell forskning samt en webbaserad enkätundersökning i ett samarbete mellan Ekonomihögskolan vid Lunds universitet och intervjuföretaget Norstat.
The economic history of colonial Bechuanaland has generally been under researched. In this article we aim at redeeming this situation by constructing real wage series for various occupations 1900-1960 using records from the colonial archives. We calculate nominal wages, subsistence consumption baskets and real wages. Our mapping means that we fill an existing knowledge gap. Throughout the text we
Introduktion: Svår akut pankreatit (SAP) är ännu behäftad med hög morbiditet och mortalitet. Initial vätskeresuscitering är av stort värde; nivån liksom nutritionsform och kaloritillförsel är oklar. Retrospektivt studerades korrelation vätsketillförsel och nutrition mot utfall vid SAP. Metod: 179 patienter med SAP, definierat som förekomst av pankreasnekros, CRP > 150, lång vårdtid eller mortalit
The article describes and analyzes how random time delays effect control loops that are closed over a communication network. Analysis as well as LQG-design are presented. The optimal controller is using timestamps to determine the timedelay between the sensor and the controller.
On Elis Eriksson's public works between 1950 and 1965.
