ANNPR, the “International Workshop on Artificial Neural Networks in Pattern Recognition” is a biennial academic conference where researchers come together to discuss the most recent advances in the fields of neural networks, deep learning and artificial intelligence as applied to pattern recognition. Pattern recognition is the field of computer science which is concerned with making sense of data such as images (“What do we see in the picture?”), audio data (for example, to recognize spoken words) or time-dependent inputs such as weather or stock-market data. This year’s edition was organized by Frank-Peter Schilling and Thilo Stadelmann from ZHAW’s Institute of Applied Informatics (InIT) and took place from 2-4 September.
We concluded an compelling interdisciplinary project on the topic of digitalization, where we applied a selection of fundamental methods of data science: web scraping, data wrangling with elastic search/kibana juggling, data cleaning, counting, posing questions and searching for answers in the data. We would like to share some results on this blog.
The project was called “DIGITAL COMMUNICATION STRATEGIES FOR THE CULTURAL SECTOR IN THE BODENSEE REGION”, in which the data analysis module dealt with the question of how digitalization was actually implemented in the region of the Lake of Constance. This was done using the example of some cultural providers such as museums, galleries, exhibitions and theatres on the region. We use in the terms Lake of Constance region and Bodensee region interchangeably this article, since Bodensee is Lake of Constance in German.
Each of us is confronted with countless privacy notices every day and agrees to the practices described. Most likely we do not even notice this because the privacy information is hidden in long and cumbersome privacy policies. In order to inform users more specifically with more relevant information about privacy, it is first necessary to understand which information is relevant to users at all. Marketing traditionally asks users about their needs, so why not ask users about their needs for privacy information?
Researchers have recently suggested that a specific usage context should be considered to make privacy notices more relevant to users. Therefore, we asked users regarding their needs in very specific contexts. We conducted an explorative online survey of privacy concerns and privacy information preferences with 642 participants in Switzerland for two different contexts. The contexts are loyalty cards (e.g. Cumulus, Supercard or Ikea) and fitness tracking (e.g. Fitbit, Garmin, Apple Health).
Can a prisoner be released early, or released on
bail? A judge who decides this should also consider the risk of
recidivism of the person to be released. Wouldn’t it be an
advantage to be able to assess this risk objectively and reliably?
This was the idea behind the COMPAS system developed by the US
system makes an individual prediction of the chance of recidivism for
imprisoned offenders, based on a wide range of personal data. The
result is a risk score between 1 and 10, where 10 corresponds to a
very high risk of recidivism. This system has been used for many
years in various U.S. states to support decision making of judges –
more than one million prisoners have already been evaluated using
COMPAS. The advantages are obvious: the system produces an objective
risk prediction that has been developed and validated on the basis of
thousands of cases.
May 2016, however, the journalists’ association ProPublica published
the results of research suggesting that this software systematically
discriminates against black people and overestimates their risk
(Angwin et al. 2016): 45 percent of black offenders who did not
reoffend after their release were identified as high-risk. In the
corresponding group of whites, however, only 23 percent were
attributed a high risk by the algorithm. This means that the
probability of being falsely assigned a high risk of recidivism is
twice as high for a black person as for a white person.
We explain here, step by step, how to reproduce results of the approach and discuss parts of the paper. The approach was aimed at building a strong baseline for the task, which should be beaten by deep learning approaches, but we did not achieve that, so we submitted this baseline, and got second in the flat problem and 1st in the hierarchical task (subtask B). This baseline builds on strong placements in different shared tasks, and although it only is a clever way for keyword spotting, it performs a very good job. Code and data can be accessed in the repository GermEval_2019
This year, the SpinningBytes team participated in the VarDial competition, where we achieved second place in the German Dialect Identification shared task. The task’s goal was to identify, which region the speaker of a given sentence is from, based on the dialect he or she speaks. Dialect identification is an important NLP task; for instance, it can be used for automatic processing in a speech-to-text context, where identifying dialects enables to load a specialized model. In this blog post, we do a step by step walkthrough how to create the model in Python, while comparing it to previous years’ approaches.
Kurt Stockinger was invited to contribute a blog to ACM SIGMOD – the leading world-wide community of database research. The blog discusses recent technological advances of natural language interfaces to databases. The ultimate goal is to talk to a database (almost) like to a human.
The full blog can be found on the following ACM SIGMOD link:
In a lecture for the Fair Data Forum, I dealt with the question “What value does data protection have for individuals and what are they willing to pay for it?”
The three data privacy types
As always, there is not one “individual”, as everyone has different data protection preferences and thus, attributes different value to having personal data safeguarded. Therefore, in order to classify individuals, there are different “typologies”. For example, Westin distinguishes between data protection fundamentalists, data protection pragmatists and completely unconcerned individuals. In 2002, Sheehan (2002) selected 889 persons in the USA and classified them with a questionnaire. Conclusion: 16% of the respondents were completely unconcerned about data protection, 81% were classified as pragmatists, and 3% as fundamentalists.
As part of “Zürich meets San Francisco – A Festival Of Two Cities”, the ZHAW Datalab co-organized the event Data Science and Beyond: Technical, Economic and Societal Challenges, which took place at the campus of San José State University (SJSU) – in the heart of Silicon Valley. One interesting fact about SJSU is that it has the highest number of graduates among all US universities that get jobs either at Apple or Cisco.
The aim of the PhD Network in Data Science is to offer students with a master degree (including degrees from an university of applied sciences) the opportunity to obtain a PhD in cooperation between a university of applied sciences and a university.
The PhD Network in Data Science is supported by Swissuniversities. It is a cooperation between three departments of ZHAW Zurich University of Applied Sciences (School of Management and Law, Life Science and Facility Management, School of Engineering), three departments of the University of Zurich (Faculty of Science, Faculty of Business, Economics and Informatics, Faculty of Arts and Social Sciences), the Faculty of Science at the University of Neuchatel and the Department of Innovative Technologies at SUPSI University of Applied Sciences and Arts of Southern Switzerland.
PhD students work in applied research projects at the university of applied sciences and are supervised jointly by a supervisor at the university and a co-supervisor at the university of applied sciences. They are enrolled in the regular PhD programs of the partner universities and have to go through the standard admission procedure. After successful completion they receive the doctorate of the respective partner university (UZH or UNIBE). The PhD Network is also open to students with a master’s degree from a university of applied sciences. They, however, have to go through convergence programs (specific to the respective faculty) for admission to the partner universities.