Welcome to the international (English-speaking) blog of the Department of Computer Science at the University of Helsinki. Our blog invites views on research, education, student life, and other societal themes connected to our computer science fields. The intention is to build a forum as an open window for readers from inside and outside computer science. If you have any good ideas or articles to share on this blog, please feel free to contact us: cs-blog [ät] cs.helsinki.fi.

Spring Trip to Petrozavodsk

By Liang Wang

In the early morning on April 26, Prof. Kangasharju, Tiina and I started our journey from Helsinki to Petrozavodsk. The whole journey was quite pleasant thanks to the sunny weather. After 12 hours, we reached our destination – Petrozavodsk, a quiet and lovely small town in western Russia. Even though it was not our first visit there, it was the first time we visited Petrozovadsk in spring. Everything looked so fresh and full of vigor compared with my memory of last winter.

As it had been scheduled, we attended the FRUCT conference in the following two days. In the conference, Prof. Kangasharju gave a vivid talk on "Floating content" which aroused many listeners' interest. Tiina gave a talk on preventing plagiarism, and I presented my work on performing large-scale experiments on Ukko cluster. Compared with our work, the presentations from Russian side indicated that they put more efforts in mathematical models. They concentrated in optimizing the system performance by applying the queuing theory. Besides that, we also saw many other talks in different sessions, some of which were interesting and very practical. 

The students' demo session was the last part of the conference, and it was indeed a fun part of that day. We had a very good chance to observe how the Russian students think and implement their ideas. Even there is still a long way to go to have practical use for most ideas, those demos do reflect the Russian students' wisdom and capability.

Besides academic mission, as a foreigner, our exploration in local culture and history is a wonderful experience. Drinking cool beer in the bar, tasting the elegant food in the restaurant, strolling along the peaceful lake for sightseeing, we happily explored every corner in this lovely city with endless curiosity.

The history of Petrozavodsk can date back to 1703 when Prince Menshikov founded the settlement of Petrovskaya Sloboda. The city has very similar climate as Helsinki. The area is about 2/3 of Helsinki, while the population is only half. So the population density is even sparser. Strolling on the street, you can see the shining limo and rusted trolleybus running on the road side by side, which may be considered as a miniature of contemporary Russian society. The chilly wind from the lake, the running river through the forest, the abandoned red iron foundry by the bridge, everything there is whispering the history of the city. Even though it seems that Petrozavodsk is still relative conservative and lack of contacting with outside world, we have kind of feeling some fundamental changes are undergoing beneath the tranquility. 

About the author: Liang Wang is a PhD student of NODES group at the Department of Computer Science. His research interests include distributed systems evaluation and large scale experiment on cluster.

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The CS Blog Task Force

Laura is doing her PhD at the CS department. Her research interests include knowledge and link discovery, bioinformatics, and data mining.

http://www.cs.helsinki.fi/en/people/langohr

 

Giulio is a Professor at the CS department. His area is Human-Computer Interaction. For more information, please find his homepage here

http://www.hiit.fi/giulio.jacucci

 

Doris is doing her PhD at HIIT, the neuroinformatics research group. Her research interests include graphical models, causal discovery, and time series.

http://www.cs.helsinki.fi/en/people/entner

 

Aaron is doing his PhD in the NODES group at the CS department. His research focuses on mobile computing and energy efficient design for multi-interfaced mobile devices.

http://www.cs.helsinki.fi/u/yding

 

05.04.2013 - 14:15

Dear readers, this is the second interview of our TKTL group leader series. The goal is to provide an open forum for group leaders to present their latest research development, activities in teaching, project work opportunities, and general comments about our department. This time, we interviewed Prof. Giulio Jaccuci, who is leading the Ubiquitous Interaction (UiX) group.

31.01.2013 - 15:04

Prof. Jussi Kangasharju started a blog to chronicle his sabbatical year - first 5 months in Korea, then 5 months in the Bay Area in the US. He comments, "It is partly intended to show people in our department that going abroad is not a scary thing." We repost here his latest blog entry about the winter experience in Korea. For further interesting stories, check out his blog.

18.12.2012 - 14:56

Sasu Tarkoma

This has been a busy year for the networking and services specialization line and the NODES research community at the Department.  We have made the headlines from rooftop greenhouses to energy-optimising mobile apps and squeeze-based smartphones.  We should not forget the best paper awards and other mentions either. We did well in the university research assessment exercise as well. We have also strengthened the industry connections and the recent Internet of Things (IoT) research program is one example of this.

18.12.2012 - 14:42

At the end of November 2012, the department of computer science threw its Christmas party in "Berghyddan", an old building in the area where Helsinki was originally founded.

24.10.2012 - 16:13

In this month's NODES Pizza Seminar, postdoctoral researcher Suzan Bayhan from HIIT gave a presentation about "Energy Efficiency in Cognitive Radio Networks". In brief, a cognitive radio node is capable of changing its communication frequency in order to better take advantage of underutilized parts of the radio spectrum.

24.09.2012 - 18:04

On September 17th, the well-being group and the department invited our international staff for a casual coffee break for the start of the new semester.

20.06.2012 - 11:03

On a beautiful summer day, our department invited staff members to the idyllic located villages of Billnäs and Fiskars, which is about 80 km west of Helsinki, famous for their long tradition of iron works.

14.03.2012 - 20:13

by Jussi Kangasharju

(Instead of a literal translation, I've chosen to translate the meaning of the title. As the most astute of you may have already noticed, the title is not in English, but in fact in Italian and recapitulates the words of Italian Coast Guard Captain De Falco when "encouraging" Captain Schettino, the captain of the sinking cruise ship Costa Concordia, to go back on board the ship to coordinate the rescue. The intended meaning is: "Stop whining and start doing your job!")

This article is mainly me venting my frustration, since over the past year or so, I've noticed that the laziness and general lack of effort have reached completely unexplored peaks. Although this article is only my personal opinion, in the discussions with many other teachers in the department, I've heard very similar experiences on their part as well.

08.03.2012 - 12:28

by Ella Peltonen

This year the Department's Strategy seminar was organized from 1st to 2nd March 2012 in Hotel Haikko Manor near the city of Porvoo. Beautiful Haikko is known for a place of fabulous summer weddings, but it seems to be also a practical conference centre and a nice small spa. And so our two strategy days contained both working and relaxation.

08.03.2012 - 12:25

by Jussi Kangasharju

For two years, my group has conducted research on data center cooling optimizations, and as part of that work, we have had computers out on the roof terrace of Exactum for over 2 years, in all sorts of enclosures. For a full recap of our research, please see Mikko's excellent blog (which also discusses washing of keyboards in a dishwasher).

14.02.2012 - 15:13

Dear readers, the interview series of TKTL group leaders is making its debut today! The goal of the series is to provide an open forum for research group leaders to present their latest research developments, activities in teaching, project work opportunities, and general comments about our department.

02.01.2012 - 17:34

by Esther Galbrun

13.12.2011 - 17:52

by Oskar Gross

Autumn school on Computational Creativity was held in Porvoo from 7th till 11th of November. It is interesting to note that it was a landmark in the field of computational creativity, as it was apparently the first "school" dedicated on this topic. Moreover, the lectures were given by the leading researchers in the respective field.

09.11.2011 - 15:54

In autumn 2010 a Finnish course was organized in Kumpula for the staff of the Computer Science Department. After one year, we are interested in how the attendees feel about the course and if there is a demand for organizing such a course again.

Here are the comments from some of last years attendees:

"Overall I found the Finnish course very useful. Unfortunately I am spending just one year here in Finland, so I did not have a lot of time to study and practice what I learnt :)

17.10.2011 - 11:20

by Stefan Schönauer

Throughout my career the question of how to improve the internal communication and collaboration has been a topic at every institution I worked for. Here I present some of my thoughts on the topic, which are based on personal experience and discussions with several people.

26.09.2011 - 12:14

The new university year has just begun. It is an exciting time for our fresh Master's students as well as senior ones, both aiming at obtaining their MSc degree from the CS department. To provide an insight into the international part of the Master's students, we start from the recruitment statistics of new students, and then share with you five fascinating stories.

05.09.2011 - 14:36

by Laura Langohr

Last October I headed to Ljubljana, Slovenia, for half a year's research visit. Sitting in the airplane I remembered colleagues and friends back in Helsinki wondering about my plan to take a Slovene course. Even though I would stay only six months I wanted to learn some Slovene, a language only 2 million people speak.

15.08.2011 - 11:23

By Liang Wang

In the early morning on April 26, Prof. Kangasharju, Tiina and I started our journey from Helsinki to Petrozavodsk. The whole journey was quite pleasant thanks to the sunny weather. After 12 hours, we reached our destination – Petrozavodsk, a quiet and lovely small town in western Russia. Even though it was not our first visit there, it was the first time we visited Petrozovadsk in spring. Everything looked so fresh and full of vigor compared with my memory of last winter.

27.07.2011 - 12:14

We consulted a few staff members and students what they expect from this blog.

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