Nexus: small worlds and the groundbreaking science of networks


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Armed with conceptual mathematics, Buchanan goes in search of all kinds of "small-world" networks and finds the same patterns taking shape in food chains, in the neuronal networks of insects, in the architecture of the Internet and in the cultural backgrounds of elite CEOs. The world, in short, is moved by shifts and adjustments in these tiny worlds.

Capitalizing on this knowledge, he argues, might reveal, e. Buchanan's ability as an affable, easygoing storyteller makes up for myriad digressions, and the narrative is, at times, spellbinding.

Programming illustration- Small world networks : Introduction

Unfortunately, it takes scores of pages before the author addresses how his concepts might be used in the real world. Readers may still be left wondering just what the practical implications are of these complex and elegant mathematical models. View Full Version of PW. More By and About This Author. Buy this book.

Frédéric Amblard - Simulating Social Networks: A Review of Three Books

I don't think this writing has aged well, but I don't think it presumed to be able to either. I'd be excited to read a newly-revised update. Dec 31, Asher Abramson rated it it was amazing. The best book I read in Also the last book I read in If you get off on mental models, interdisciplinary approaches, complex systems, and care about applying them to phenomena such as wealth, disease, friendship, and social good, this book will absolutely blow your mind.

Probably the most motivating preface I've ever read. Occasionally, the author says something a little too grandiose or tells a story where there are other compelling explanations, but he's generally good at staying in hi The best book I read in Occasionally, the author says something a little too grandiose or tells a story where there are other compelling explanations, but he's generally good at staying in his lane and sticking to the math and the research.

Excited to read the rest of his books. Jul 09, Brian rated it liked it. Fascinating read about small-world networks. Really high-level, pop science, and there's a bit of overlap with "Ubiquity" vis-a-vis power laws , but good food for thought nevertheless. I do wish he'd bothered to sum up the take-aways a bit more succinctly; seems as though he was shying away from making any real strong claims or predictions.

The first half was a bad summary of 'Linked' and the rest had far too much generalization, not nearly enough specifics. Feb 03, Katie rated it really liked it. Completely fascinating. The world is both way more complex and much simpler than I thought. Feb 22, Jurgen Appelo rated it really liked it Shelves: social-complexity.


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Admirably researched overview of small world networks. Apr 19, Ann rated it really liked it Shelves: mathematics , statistics-and-modeling. Nexus is a nice introduction to complexity, tipping points, networks, and small worlds. Basically an examination of the general pattern that shows up in almost everything. This network of small worlds consists of clumps which have weak links to others making a networking pattern that goes through the whole, whatever that whole may be.

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Buchanan relates some of the development of the idea and how it has been employed, exploring many different areas including ecology, behavior, economics, the struc Nexus is a nice introduction to complexity, tipping points, networks, and small worlds. Buchanan relates some of the development of the idea and how it has been employed, exploring many different areas including ecology, behavior, economics, the structure of ice, and epidemiology.

He concludes with a general section on the insights gained and projects into the future. Although there is a sense in which these ideas are not new, they have not been so well articulated or understood. The book offers some insights that will help you get started. Fascinating and very readable I loved the wide range of examples of network theory - everything from HIV transmission to behavioral economics to social systems and the Internet.

This has inspired me to learn more about systems theory. Jun 20, Justin Mundt rated it really liked it Shelves: own-it. This book is an interesting journey through complexity theory primarily focused on small world networks. It turns common sense on its head. An example is the Japanese fishermen who think that removing whales from the ecosystem will result in more fish.

Seems to make sense. But because of all the complex interconnections of the worlds oceans the fish population might decline. Perhaps the whales benefit the food smaller fish of the fish they eat. Perhaps whales are less voracious than alternative This book is an interesting journey through complexity theory primarily focused on small world networks. Perhaps whales are less voracious than alternative predators, who without the whales, are free to expand in population. The point is complex phenomenon do not have clear causal links.

Jul 09, Safiya rated it really liked it Shelves: rmtd , vuca. I first came across the theory of Networks a while ago, and naturally didn't quite understand the hype about it, it sounded like a miraculous lens through which everything almost makes sense. A bit alienating This book doesn't contain a thorough explanation with equations and graphs and so, and so However I would've loved to see the Fat tail distribution curve next to the results , it is rather a long introduction to how networ I first came across the theory of Networks a while ago, and naturally didn't quite understand the hype about it, it sounded like a miraculous lens through which everything almost makes sense.

However I would've loved to see the Fat tail distribution curve next to the results , it is rather a long introduction to how networks theory is shaping our sciences..


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Leggenda metropolitana? E' solo uno degli esempi possibili. Beh, io ho partecipato come pubblico a Passaparola anni fa grado 1. Jun 29, Domenico rated it it was amazing. Che cosa accomuna i rapporti sociali, l'economia, la struttura del World Wide Web e la diffusione delle malattie? Il saggio divulgativo di Mark Buchanan, fisico teorico, cerca di rispondere a queste domande. Con disinvoltura e con un linguaggio semplice e accattivante espone i vari tipi di rete esistenti. Una rete fortemente aggregata ma priva di contatti "casuali" sembrerebbe incrementare la fiducia dei vari membri e di contro scoraggiare la diffusione delle idee o "memi"; una rete casuale inve Che cosa accomuna i rapporti sociali, l'economia, la struttura del World Wide Web e la diffusione delle malattie?

In una rete sociale, per esempio, pochi individui al mondo chiamati hubs sembrerebbero svolgere questa funzione coesiva: la loro scomparsa invece potrebbe sortire degli effetti disastrosi sull'intera rete. Apr 26, J. This book is a brief overview of network theory. Buchanan explains to the layman the difference between egalitarian networks where networks grow organically with the same number of links and aristocratic networks where networks grow through a few specific nodes and how they relate to food chains, extinction, the Internet, social networks, epidemics, economics, peer-reviewed scientific papers, social segregation, and the famous "six degrees of separation.

What is interesting to me is that physicists through this theory can help explain the nature of money, microbiology, social stratification, or virtually any other discipline. Occasionally, Buchanan condescendingly views long held theories as childish or unimaginative, much to his discredit. This book is also a little dated and relies on a lot of European scientific studies. Nevertheless, who knew that the "Oracle of Bacon" would provide such a new and startling field of study that could finally explain vast gaps in so many disciplines?

Mar 01, Blyden rated it liked it. In the genre of presenting a field of scientific ideas to a general audience, ala Malcolm Gladwell. The book is engaging, but the style isn't as engaging as Gladwell's. The subject is network theory. My own perspective on networks is from a very sociological and anthropological view. The reader will find some of that here, but the emphasis is more on the formal organizational properties of networks, particularly on the "small world" and "power law" networks that exhibit a combination of clusteri In the genre of presenting a field of scientific ideas to a general audience, ala Malcolm Gladwell.

The reader will find some of that here, but the emphasis is more on the formal organizational properties of networks, particularly on the "small world" and "power law" networks that exhibit a combination of clustering and rather short average path distances, why such networks are common in a variety of settings as diverse as social networks, neural networks, transportation and electric power grid networks, and ecological networks. A good read for someone interested in understanding the logic of organization inherent in network structures and how network properties shape those embedded in them.

As some other reviewers have mentioned, readers might find it more useful to go directly to Barabasi's Linked or Duncan Watts' Small Worlds as much of the first part of Nexus is covered in greater depth in those two works. Dec 21, Kate rated it it was amazing Recommends it for: network geeks? Shelves: read-for-school.

This book is awesome.

Ever wondered how you could possibly be connected to a farmer in Brazil or a Russian ice fisherman? Do you find it odd when you run in to random people when you're on vacation in NYC? It lays out the theories like Granovetter's Strength of Weak Ties and experiments crazy ol' Erdos that lead to the theory of small world networks. It's written by a journalist, so like the Shilts book, it reads quick, fun, and interesting. The Six Degrees of Kevin Bacon is based on small world network theory. This may seem totally uninteresting to many, but will be a basis of my dissertation work looking at word-of-mouth and how health information is spread through small world networks.

I suggest reading this book to everyone. It's really really fun! Apr 13, Anant Mittal rated it liked it.

NEXUS: Small Worlds and the Groundbreaking Science of Networks

Pretty interesting book. Albeit, a little complex in between, the author certainly does drive home the point with a lot of interesting examples.

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However, the examples based on the "laboratory" experiments do seem a little waste due to the strict control of conditions and removal of many factors which would in real world situations have far-reaching effects on the outcomes. His reference to Malcolm Gladwell's Tipping Point was also a refresher and made it clear that the author had done his homewo Pretty interesting book. His reference to Malcolm Gladwell's Tipping Point was also a refresher and made it clear that the author had done his homework well. A good read, but a better applied philosophy. Feb 14, Steve rated it liked it.

Have you ever wondered what the hell Kevin Bacon has to do with the 6 degrees of separation idea? Have you ever looked at river beds on Google Earth and marveled at how much they look like fractal patterns?

Nexus: small worlds and the groundbreaking science of networks Nexus: small worlds and the groundbreaking science of networks
Nexus: small worlds and the groundbreaking science of networks Nexus: small worlds and the groundbreaking science of networks
Nexus: small worlds and the groundbreaking science of networks Nexus: small worlds and the groundbreaking science of networks
Nexus: small worlds and the groundbreaking science of networks Nexus: small worlds and the groundbreaking science of networks
Nexus: small worlds and the groundbreaking science of networks Nexus: small worlds and the groundbreaking science of networks
Nexus: small worlds and the groundbreaking science of networks Nexus: small worlds and the groundbreaking science of networks
Nexus: small worlds and the groundbreaking science of networks Nexus: small worlds and the groundbreaking science of networks

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