Audio Signals Quality Diagnostics with Image Analysis. 
by Vasily Tolkachev, ZHAW

In this technical talk I present a number of interesting findings from a project with our industrial partner. The goal was to build a decent discriminative model which is able to distinguish between working and broken sound emitters based on the sound files produced by them. 
We approached the problem with various image analysis tools by applying different classifiers on spectrograms of these files. A technique called t-SNE, which led to the key findings in the project, is going to be introduced. Having faced a number of data artefacts such as erroneous labels and class imbalance, sufficiently good performance was already achieved with Random Forest after a number of important transformations. In conclusion, a comparison to variational autoencoders will be exemplified.

 

Powerpoint presentation

Audio Based Bird Species Identification Using Deep Learning Techniques 
by Elias Sprengel, ETHZ

Accurate bird species identification is essential for biodiversity conservation and acts as an important tool in understanding the impact of cities and commercial areas on ecosystems. Therefore, many attempts have been made to identify bird species automatically. These attempts usually rely on audio recordings because images of birds are harder to obtain. They work well when the number of bird species is low and the recordings contain little background noise, but they quickly deteriorate when employed in any real world scenario.

In this talk, we present a new audio classification approach based on recent advances in the domain of deep learning. With novel pre-processing and data augmentation methods, we train a neural network on the biggest publicly available dataset. This dataset contains crowd-sourced recordings of 999 bird species, providing an excellent way of evaluating our system in a more realistic scenario. Our convolutional neural network is able to surpass current state of the art results and won this year’s international BirdCLEF 2016 Recognition Challenge.

You might like also

Explore 142 Initial Exchange Offering  (IEO) by category, year and country
IEO is currently the most popular fundraising trend in the crypto industry. As the name suggests, Initial Exchange Offering is conducted over the crypto trading platform and exchanges. So unlike ICOs wherein crypto projects directly approach investors, IEOs involve a third-party in the form of crypto exchanges. …
82 Days ago
Security Token Offering (STO) statistics
Security token offering (STO) is a type of fundraising that is performed with a company offering tokenized securities. The defining feature of security token offerings is in its definition. Stocks, bonds and managed property trusts are another examples of securities. …
83 Days ago
systematization of knowledge within major blockchain protocols or consensus
Alexis Gauba presented a systematization of knowledge within major blockchain protocols or consensus, addresses the common challenges …
161 Days ago
Stablecoins: Crypto's Holy Grail or Fools’ Errand? by Dr Garrick Hileman
I was attending the interesting LECTURE "Stablecoins: Crypto's Holy Grail or Fools’ Errand?" by Dr Garrick Hileman - Head of reseach at Blockchain - London School of Economics - United Kingdom at hashtagETH hashtagZurich and here is a copy of the slides Introducing: 2019 State of Stablecoins The 2019 report builds on its predecessor to provide an updated and expanded look at the current state of the stablecoin market - a space where we expect to see significant innovation in …
161 Days ago
The State of Stablecoins 2019: Hype vs. Reality in the Race for Stable, Global, Digital Money
The report, entitled “The State of Stablecoins 2019: Hype vs. Reality in the Race for Stable, Global, Digital Money” is based on information collected from 40 crypto and stablecoin firms. The report’s lead author is George Samman, a blockchain and cryptocurrency advisor. According to the document, Samman “was commissioned to research the stablecoin landscape and then independently report his findings for the broader industry to learn from.” https://bit.ly/2TWc1ao      …
161 Days ago
ICO STATISTICS FOR 2018 AND OUTLOOK FOR 2019
The last 6 months of ICO have been imported and can be browse at https://ico.tokens-economy.com/statistics. I display there historical ICO data for all cryptocurrencies friendly countries for each month of the year. What you can get out of all these charts: You can see the number of ICO per months over 13 major countries (Cayman-Islands, UK, USA, Cyprus, Estonia, France, Germany, Liechtenstein, Malta, Russia, Singapore, Slovenia, Switzerland), Each country has its own color, how often that color appear on the map represents the …
161 Days ago
MAJOR BLOCKCHAIN CONSENSUS ALGORITHMS AS AN INFOGRAPHICS
Consensus algorithms enable network participants to agree on the contents of a blockchain in a distributed and trust-less manner. I’ve listed in the past few months all of them at tokens-economy.gitbook.io/consensus/ and thought it will be cool also to produce an Infographics The PNG (4528 x 2894 px, 2.5MB) can be downloaded here and the PDF version (280kb) with clickable consensus links here …
161 Days ago
No Thumbnail was found
Usually, a percentage of the tokens is sold to ICO participants and a percentage kept for the company’s needs. The token distribution and allocation of the token is usually a chapter in the future company whitepaper. A pie chart displays how and to whom tokens will be allocated. But how much tokens are allocated (amount) and what are they used for? how much token should I spend for advisor? is 15% of all tokens too much for founder? How many …
353 Days ago
No Thumbnail was found
introduction This is my attempt to list all possible blockchain consensus out there, I welcome pull request of the blockchain community! let's make it the main reference for blockchain consensus. Visit also Tokens-Economy.com to keep track of new developments in the distributed ledger technology space. Blockchain Consensus? At the core of the Blockchain disruption is a consensus algorithm: Consensus algorithms enable network participants to agree on the contents of a blockchain in a distributed and trust-less manner. “Consensus decision-making is a group …
364 Days ago
Initial Coin Offering security checklist
Blockchain technology and cryptocurrencies have revolutionized the way companies raise capital but at the same time are bringing their own sets of challenges. To ensure that your startup will go through that (ad)venture in a safe manner, you should always adhere to best security practices, for your company AND your investors.  This mind map will present you in a visual way lots of valuable information like: A compilation of the most dangerous threats to the ICO industry and how to mitigate, …
385 Days ago