Many portfolio managers measure performance with reference to a benchmark. The difference in return between a portfolio and its benchmark is the active return of the portfolio. Portfolio managers and their clients want to know what caused this active return. Performance attribution decomposes the active return. The two most common approaches are the Brinson-Hood-Beebower (hereafter referred to ...

In cyber forensics, attribution of an attack, which finds out details about the individual(s) who launched an attack, is more important than mere identification of an attack, since a precise response to the cyber attack heavily depends upon attribution. The identification of the initiator(s) in attribution provides precise targeting for a counter-attack. However, heuristics are typically deploy...

We describe Authorship Attribution of Bengali literary text. Our contributions include a new corpus of 3,000 passages written by three Bengali authors, an end-toend system for authorship classification based on character n-grams, feature selection for authorship attribution, feature ranking and analysis, and learning curve to assess the relationship between amount of training data and test accu...

Authorship attribution has been a field of interest for researchers in the past, especially for forensic purposes. In this thesis, to obtain the degree of Bachelor of Science from the Leiden University, we investigate character n-grams and so-called compression distances to prototypes on several datasets, i.e., the datasets provided by PAN Labs (a benchmarking activity on uncovering plagiarism,...

Song lyrics, separated from the audio signal of their song, still contain a significant amount of information. Mood and meaning can still be conveyed effectively by a pure textual representation. There has even been somewhat successful previous work on genre classification from song lyrics[7]. Building on previous work, we seek to build an artist attribution system for song lyrics. This task is...

An authorship attribution is a problem of identifying the author of an anonymous or disputed text if there is a closed set of candidate authors. Due to the richness of natural languages and numerous ways of expressing individuality in a writing process, this task employs all the sources of language knowledge: lexis, syntax, semantics, orthography, etc. The impressive results of n-gram based alg...

Historical cabinet protocols are a useful resource which enable historians to identify the opinions expressed by politicians on different subjects and at different points of time. While cabinet protocols are often available in digitized form, so far the only method to access their information content is by keyword-based search, which often returns sub-optimal results. We present a method for en...

Forty-eight male subjects participated in an aggression task after having received either alcoholic or placebo beverages and after being told that they had received either a high dose or low dose of alcohol. All subjects in the alcohol group actually received the same dose. Measures of aggression were the intensity and duration of shock given to a bogus partner in a reaction time-pain perceptio...

As information becomes widely available and easily accessible through the Internet and other sources, the trend of plagiarism has been increasing. Plagiarism and copyright infringement are issues that come up in both academic and corporate environments. We need author classification techniques to inhibit such unethical violations. Source code is also intellectual property and reflects individua...

The importance of attribution is becoming evident due to its relevance in particular for Opinion Analysis and Information Extraction applications. Attribution would allow to identify different perspectives on a given topic or retrieve the statements of a specific source of interest, but also to select more relevant and reliable information. However, the scarce and partial resources available to...