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Text of the page (random words):
otstrapping of recommender systems trust aware collaborative filtering for recommender systems trust aware recommender systems trustlet open research on trust metrics using trust in recommender systems an experimental analysis wikitrip animated visualization over time of gender and geo location of wikipedians who edited a page trust metrics in recommender systems trust metrics on controversial users balancing between tyranny of the majority and echo chambers trustlet open research on trust metrics extended controversial users demand local trust metrics an experimental study on epinions com community reputation is in the eye of the beholder on subjectivity and objectivity of trust statements a multicultural doctorate course on information and communication technologies for development ict4d bowling alone and trust decline in social network sites archives contact the future of communication leave a reply i guess this could be the last post in the blog probably for a very long time even simpler to read and understand this entry was tagged and posted on 25 february 2026 by paolo italy as best country in believing climate change is a global emergency leave a reply with 1 2 million respondents the peoples climate vote 2020 2021 is the largest survey of public opinion on climate change ever conducted 50 countries people were asked about their belief in the climate emergency and which policies across six areas energy economy transportation farms and food protecting people and nature that they would like their government to enact the first question was do you think climate change is a global emergency yes no and italy is in first position together with uk 81 of respondents from italy think climate change is a global emergency the second question was if yes what should the world do about it a do everything necessary urgently b act slowly while we learn more about what to do c the world is already doing enough d do nothing and italy is the first one here 78 of respondents from italy who answered yes to the first question say we should do everything necessary urgently in response i did not have at all the perception that in italy there is a high and higher than all other countries awareness about climate change as a global emergency but let me appreciate it anyway now it is time to move from belief and awareness to action the survey asked people which of 18 climate policies they would like their country to pursue to address climate change overall the most popular among participating countries were conserve forests and land 54 use solar wind and renewable power 53 climate friendly farming techniques 52 invest more money in green business and jobs 50 this entry was tagged and posted on 21 december 2022 by paolo i m in the world s top 2 scientists leave a reply i ve been informed i m in the stanford list of world s top 2 scientists wow in reality i m in the list that appears in a paper titled updated science wide author databases of standardized citation indicators published on plos biology on october 16 2020 by three authors and the first author is affiliated with stanford university anyway it is a good news and i guess there is not better place to brag about this than in my not so active anymore blog if you want to have a look at the complete list of scientists check this copy of the very long excel file this entry was tagged and posted on 11 december 2020 by paolo the impact of user interface on young children s computational thinking better tangible wood or non tangible screen 1 reply i read the impact of user interface on young children s computational thinking pdf by sullivan bers pugnali 2017 wonderful paper authors compare a tangible interface to robotics programming and a non tangible interface the tangible interface is kibo a robotic kit programmed with wooden blocks basically making scratch physical i totally love kibo so i m biased the non tangible interface is scratchjr i e robots are programmed via the screen of a tablet they compare it with children in the age range 4 7 average age of 5 86 years old both groups had 14 children the curriculum for both groups explored the same computational thinking concepts sequencing repeat loops and conditionals results 1 computational thinking the evaluation compared the two groups with respect to four computational thinking categories sequencing repeat loops conditional statements and debugging kibo scratchjr students in the tangible kibo group scored higher across all four computational thinking categories in comparison to the graphical scratchjr group differences for sequencing and debugging tasks were statistically significant 2 positive technological development the evaluation compared the two groups with respect to 6 positive behaviors 6 c content creation creativity communication collaboration community building and choices of conduct content creation and creativity kibo children in the tangible group focused on the goal at hand first and once that was complete they moved onto exploring other ideas they also explored the different functions within kibo s programming language as their main creative outlet instead of focusing on the art materials around them scratchjr t hose in the graphical group often got distracted by the multitude of options within the application but eventually completed the challenge given to them they spent time using the paint editor features that scratchjr offers to edit and create characters and backgrounds as their way of making their projects stand out from the rest communication and collaboration kibo in the tangible group students were able to easily look around the room and see other student s robots this allowed them to explore what everyone was doing and to prompt them to ask one another questions and receive peer help and input on their own work it also allowed counselors and research assistants to easily see who was on or off task and to see who needed help scrtachjr in contrast in the graphical group it was much more difficult for counselors to see what children were working on and whether or not they were off task it was difficult to see what was on each child s ipad screen at any given time meaning that both children and counselors needed to go out of their way to find out what everyone was working on and to ask questions finally it put more responsibility on the child to ask for help since the adults could not always tell if there were any problems with the kids programs choise of conduct and community building i e general ambiance of the room kibo i n the tangible group children were often moving around with their robots or going over to other groups to explore their projects the children were also generally on the louder side especially when sharing their projects in the tech circle they seemed very engaged and eager to share their learning scratchjr with the graphical group children were generally very quiet and respectful in the traditional classroom sense they were often either hyper focused on their own work or on the people close to them students only occasionally walked around to explore other people s projects it was clear from these observations that both groups demonstrated positive conduct and community building but it different ways from my personal subjective preferences i would say that manipulating things with hands tangible is better than manipulating abstract things on a tablet screen montessori docet reference sullivan a bers m pugnali a 2017 the impact of user interface on young children s computational thinking journal of information technology education innovations in practice 16 1 171 193 this entry was tagged and posted on 2 march 2020 by paolo cool paper written drawn as a comic 1 reply the emerging genre of data comics is an article that was published in ieee computer graphics and applications june 2017 but it is actually a comic cool this entry was tagged data comics paper and posted on 27 june 2019 by paolo a walk on the child side our chi paper got a honourable mention award leave a reply our paper a walk on the child side investigating parents and children s experience and perspective on mobile technology for outdoor child independent mobility was accepted at chi 2019 and also got a honourable mention wow a walk on the child side investigating parents and children s experience and perspective on mobile technology for outdoor child independent mobility from michela ferron you can read the paper and download the pdf at the paper page enjoy a walk on the child side investigating parents and children s experience and perspective on mobile technology for outdoor child independent mobility this entry was tagged award chi honourable mention mobility paper and posted on 20 march 2019 by paolo google ux designers demystify artificial intelligence and machine learning leave a reply josh lovejoy jdlovejoy in the first minutes of this video about human centered machine learning explains artificial intelligence is really anything where there is an automated decision being made and cites as examples a toaster and automatic doors yes your toaster is ai and then what s distinct about machine learning as a subset of ai is that decisions are learned as simple as that refreshening you might also want to check the very interesting articles from google s people ai research team below two screenshots from the beginning of the video when josh makes the case for toaster and automatic doors being examples of ai this entry was tagged ai artificial intelligence google machine learning and posted on 19 october 2018 by paolo gallery of xkcd and other python matplotlib styles 1 reply i m reading the wonderful python data science handbook by jake vanderplas a book written entirely as jupyter notebooks and got excited about matplotlib styles but xkcd style was missing so i modified a bit the code for rendering the different styles to include it below a small part of the gallery xkcd style is the first line which is generated by the jupyter notebook available as a gist on github and embedded below view the code on gist i love xkcd graphs for example the following one and you can create them with python xkcd graph this entry was tagged graphs jupyter matplotlib python xkcd and posted on 29 december 2017 by paolo 3 open positions on design thinking available in trento leave a reply the new adventure i was mentioning few days ago is the design research lab a joint initiative of university of trento confindustria art institute artigianelli and bruno kessler foundation we are currently recruiting and now there are 3 open positions as research fellow in the design research lab the duration of the contract is for 12 months the gross amount is 19 668 euros all the details are in the call the broad goals of the design research lab and the tasks of the research fellows are to effectively promote in public and private organizations the culture of services and their design as levers of product creation and central factors of local development the deadline for applying is 12 april 2017 hurry up feel free to ask me any question we might end up working together this entry was tagged and posted on 29 march 2017 by paolo design thinking and how it transformed airbnb from failing startup to billion dollar business leave a reply very interesting conversation with joe gebbia co founder of airbnb i share some insights i got by watching the 2013 video first insight they were 3 founders in california with a stagnating company airbnb they could have kept staying in their office trying to improve the site write more software code and instead what did they do realising that apartments in new york all had horrible photos they took a flight from california to new york rented a camera knock on doors of airbnb users in new york took better photos of their apartments and replace them on the site as joe says in the interview for the first year we sat behind our computer screens trying to code our way through problems instead going to meet their users is one of the pillars of design thinking its very human centred focus just after this intervention revenues which were stagnating at 200 dollars per week went up to 400 dollars per week near the end joe says if you ever want to understand your product go stay in the home of your customer well this applies only to airbnb and maybe also to couchsurfing actually the previous suggestion was given to airbnb founder by paul graham of ycombinator i loved his hackers and painters essay which suggested it s okay to do things that don t scale what is the meaning i think it s again about being very human centred going out of the building develop empathy with specific persons and really understand him her so that you can make improvements that really satisfy real needs of at least one real person scaling to millions of persons will come later if needed another suggestion by paul graham was go meet the people which again is the very human centred side of design thinking the interviewer asks what if your company is not for go out and meet people and joe replies well be pirate a sort of do it anyway but then i asked my self how do you get it accepted this reminded me of the pragmatic book undercover user experience design and what can the employee bring back from this go out and meet people to the company joe replies visible tactical tangible insight that came from somebody is consuming your product or your service joe suggests to become the patient of your service product for example every new employee at airbnb during the first week makes a trip using airbnb of course document it and share insights with his her new department wow joe also cites the stars vs heart icons story when you start as new employee at airbnb you ship a new small feature something on day one so that new employees can experience shipping on day one a newly hired designer was given the task of looking at the star functionality an icon you click in order to save a listing you find interesting after few hours he or she comes back with something like i think the stars are the kinds of things you see in utility driven experiences instead airbnb is so aspirational why don t we tap into that i m going to change that to a heart and joe wow okay it s interesting and they just shipped the new feature to the entire userbase not a b testing or just shipping it to 10 of the users they also added some code in it in order to track it and see how behavior change and the next day they checked the data and the engagement with the icon increased by over 30 that simple change from a star to a heart increased engagement by over 30 in short let people be pirates ship stuff and try new things this entry was tagged airbnb design thinking service design and posted on 27 march 2017 by paolo post navigation older posts search for subscribe to blog via email email address subscribe about paolo i m paolo massa and this is my blog not enough for you then 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