Collaborative processes can be knowledge and information intensive, especially in research-oriented environments. In the Humanities, the access to resources in a digital library is often combined with collaborative interpretation of the documents. This may involve cooperative negotiations between users, careful evaluation of available options, or discussions about the interpretation of certain ...

This paper proposes a procedure for using a GARCH or exponentially weighted moving average model in conjunction with historical simulation when computing value at risk. It involves adjusting historical data on each market variable to reflect the difference between the historical volatility of the market variable and its current volatility. We compare the approach using nine years of daily data ...

Possibly the single most important commitment of the Great Britain Historical GIS project under its funding from the New Opportunities Fund is the construction of a systematic historical gazetteer covering the administrative units of Great Britain over the last two centuries. This is important both as a reference resource in its own right and to tie together our diverse but always place-specifi...

It is difficult to compute Value-at-Risk (VaR) using multivariate models able to take into account the dependence structure between large numbers of assets and being still computationally feasible. A possible procedure is based on functional gradient descent (FGD) estimation for the volatility matrix in connection with asset historical simulation. Backtest analysis on simulated and real data pr...

The analysis of historical documents is still a topical issue given the importance of information that can be extracted and also the importance given by the institutions to preserve their heritage. The main idea in order to characterize the content of the images of ancient documents after attempting to clean the image is segmented blocks texts from the same image and tries to find similar block...

This paper presents an extension to Bitcoin’s script language enabling covenants, a primitive that allows transactions to restrict how the value they transfer is used in the future. Covenants expand the set of financial instruments expressible in Bitcoin, and enable new powerful and novel use cases. We illustrate two novel security constructs built using covenants. The first, vaults, focuses on...

In this presentation we describe a methodology we have adopted for coding the semantic structure of a historical document and the resulting semantic model. To do this, we adapted currently available methodologies for ontology engineering to the context of semantic document coding. Using Protégé-2000 we then used this methodology to develop a formal ontological model and finally to encode a hist...

Edit distance matching has been used in literature for word spotting with characters taken as primitives. The recognition rate however, is limited by the segmentation inconsistencies of characters (broken or merged) caused by noisy images or distorted characters. In this paper, we have proposed a Mergesplit edit distance which overcomes these segmentation problems by incorporating a multi-purpo...

Large amount of information is lying dormant in historical documents and manuscripts. This information would go futile if not stored in digital form. Searching some relevant information from these scanned images would ideally require converting these document images to text form by doing optical character recognition (OCR). For indigenous scripts of India, there are very few OCRs that can succe...

1. INTRODUCTION. In this paper I shall discuss Plimpton 322, one of the world's most famous ancient mathematical artefacts [Figure 1]. But I also want to explore the ways in which studying ancient mathematics is, or should be, different from researching modern mathematics. One of the most cited analyses of Plimpton 322, published some twenty years ago, was called "Sherlock Holmes in Babylon" [4...