Study, teach and do what is fun

New postgraduates have recently been selected for the HeCSE graduate school that the department shares with Aalto University. One of the rising young researchers is Antti Laaksonen.

 

Antti finished his Master’s degree in spring 2011. Those whose job description includes reading lightweight Scrum theses written for the industry may be heartened by the fact that this student wrote his thesis on a most essential area of computer science, i.e. minimization of regular expressions. Antti chose his topic himself, because it was ‘interesting and suitably challenging.’

 

 

As academic tradition prescribes, Antti has worked as a teacher at the department while still an undergraduate, teaching the courses Introduction to programming, Advanced programming, Data structures and Computational models. His teaching has been successful, to say the least, as he was awarded the department’s ‘teacher of the year’ prize for junior teachers in 2010. Though the award was a nice surprise for Antti, it seems it didn’t come completely out of the blue, as Antti says he invests a great deal of work into his teaching.

 

After finishing his MSc degree, Antti continued as a postgraduate immediately, since he is interested in research and might want to make a career out of it. He has selected the automatic inscription of music as his research topic; it entails transferring music from a digital format (e.g. CD) to symbolic representation (such as notation). Contrary to many researchers, Antti has practical experience of his topic in addition to a solid theoretical basis; he plays both the violin and the piano and makes arrangements for small combos.

One of the contributions of Antti’s research is the utilisation of the music genre when transcribing it. In other words, when we know what genre the music belongs to, it is easier to produce the correct symbolic representation of it. In his research, Antti concentrates on western art music and its different forms, including e.g. pop music. In the end, the fact that all we ex-youngsters know, i.e. that Jethro Tull, Procol Harum, and Johann Sebastian Bach are all just variations on the same theme, will be proven scientifically.

Antti’s doctoral thesis will be finished by the end of his four-year HeCSE period 2012-2015, under the supervision of Esko Ukkonen and Kjell Lemström. So far, Antti has studied previous research into this topic, and the main work will start in 2012. With his proven skills, Antti will continue teaching at the department while working on his thesis.

Antti says his hobbies are music and programming, the same things he is studying and teaching. When I couldn’t get Antti to admit that work and hobbies cannot be the same thing, I had to look it up in Wikipedia: ‘A hobby is a regular activity or interest that is undertaken for pleasure, typically done during one's leisure time. Hobbies are practiced for interest and enjoyment, rather than financial reward. Engaging in a hobby can lead to acquiring substantial skill, knowledge and experience. However, personal fulfilment is the aim. For some people, work and hobbies come together, and they are happy with this situation. It seems I have to admit that Antti has been able to choose his hobbies well.

 

In summer 2011, Pekka Mikkola (l.), Antti Laaksonen, Emilia Hjelm and Arto Vihavainen (not in picture) supervised the Linkki programming camp for children. Photo: Hanna Mäenpää.

Editor: Jukka Paakki

Translation: Marina Kurtén

 

Created date

21.02.2012 - 10:57

Inter-university research and training centre on information security

The University of Helsinki and Aalto University have set up a joint research centre focusing on information security. The new centre, HAIC (Helsinki-Aalto Centre for Information Security), will coordinate the Master’s-level security education between the university and Aalto, with links to research and doctoral education.

The idea is to build bridges to the industries and gain their support for the education, and e.g. grants for MSc students coming from outside the EU, the head of the Department of Computer Science, Sasu Tarkoma, says.

Computer science undergraduate Petteri Timonen awarded in US science competition

Petteri Timonen, 19, came second in his category of the Intel International Science and Engineering Fair (ISEF) in Phoenix, Arizona.

 

On Friday, 15 May, Timonen, who is studying computer science at the University of Helsinki, was awarded a grant worth 1500 USD, some 1330 euros, in the Systems Software category of the Intel ISEF science competition.
 
As his entry, Timonen submitted a software tool he developed for Finland’s Red Cross to make mobile blood runs around the country as cost-effective as possible. Timonen implemented his tool in cooperation with the Blood Service.

The tool has gained international attention, as no tool like it seems to have been developed anywhere else. Timonen has also negotiated with the American Red Cross by email.

Renewed Carat App Gives a Smart Boost to Battery

 
The Carat Project Team at the University of Helsinki, Department of Computer Science, has published a new version of the popular mobile energy-awareness application.

After launch in June 2012, Carat has helped over 850,000 users, of which 41 per cent have been Android and 59 per cent iOS users, respectively. The new user interface follows modern application design guidelines and presents battery information in a more intuitive and easy to use manner.

- In addition to the new user interface, we have increased the accuracy of the energy saving recommendations of Carat, says Professor Sasu Tarkoma, the leader of this research done at the university.

The user interface features the number of energy intensive applications (Hogs), energy anomalies (Bugs) and user recommendations (Actions) at a glance on the main screen as well as global energy statistics for the device community.

Cover Song Identification Using Compression-based Distance Measures

M.Sc. Teppo E. Ahonen will defend his doctoral thesis Cover Song Identification Using Compression-based Distance Measures on Friday the 1st of April 2016 at 12 o'clock in the University of Helsinki Exactum Building, Auditorium CK112 (Gustaf Hällströminkatu 2b) His opponent is Academy Professor Petri Toiviainen (University of Jyväskylä) and custos Professor Esko Ukkonen (University of Helsinki). The defence will be held in Finnish.

Measuring similarity in music data is a problem with various potential applications. In recent years, the task known as cover song identification has gained widespread attention. In cover song identification, the purpose is to determine whether a piece of music is a different rendition of a previous version of the composition. The task is quite trivial for a human listener, but highly challenging for a computer.