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John Lam
Rochester, NY
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About John Lam
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I work on ideas i think can change the world, like collaborative filtering and social computing. I watch sports mostly to learn something in a sport i play. When i cycled and raced, i trained and rode 10000km yearly for years, until i burned myself out, but still i prefer doing to watching. My compatriots and i now find ourselves the center of organized inline skating in Rochester. |
| hometown | Saginaw MI; Freeland MI |
| activities | inline skating, Nordic skiing, bicycling, hiking, backpacking, camping … |
| interests | photography, traveling, Burning Man, sustainability, peasant food, farm markets, bazaars, sound gardens, loft conversions, tensegrity, urban design, architecture, Arcosanti, Pritzker Prize, Long Now, MacArthur fellowship, Ashoka.org, social capital, social enterprise, venture philanthropy, social media, media literacy, libraries, history, journalism, open source, open courseware, Creative Commons, social computing, programming, hacking, NextStep, Unix, boundary calculus, mathematics, finance, economics, physics, optics, acoustics, music, Deutsch, Cantonese, genius, innovation, iconoclasm, typography, art + design, doing things worth doing well, clarity of mind, awareness, life … |
| music | Yoyo Ma, Ryuichi Sakamoto, Philip Glass, Steve Reich, Maria Schneider, Bill Frisell, Theo Bleckmann, Miles Davis, Brian Eno, Aphex Twin, Moby, Henryk Górecki, Béla Bartók, Antonio Jobim, Tunde Jegede, Vince Guaraldi, Brian Wilson, Pink Floyd … |
| television / movies | Yi Yi, Vanilla Sky, Koyaanisqatsi, Six Degrees of Separation, El Amor Brujo, Bagdad Cafe, Before the Rain, Cast Away, Horse Whisperer, Contact, Jackie Brown, Traffic, Eat Drink Man Woman, Benny & Joon, Toy Story 2, In the Mood for Love, Sixth Sense, Apocalypse Now, Alien, American Beauty, Todo Sobre Mi Madre, Bridges of Madison County, Chungking Express, Cinema Paradiso, Dr Zhivago, Eat Drink Man Woman, Emperor's Club, Fast Cheap & Out of Control, Finding Nemo, God Must Be Crazy, Good Will Hunting, Hamlet (2000), Human Stain, Joy Luck Club, Laurel Canyon, Manhattan, Paris Texas, Pay It Forward, Powaqqatsi, Road Home, Short Cuts, Smoke Signals, Hable con Ella, Thomas Crown Affair (1999), Three Colors: Red, Three Colors: White, Together (2002), Vertigo, MovieLens.org ... |
Contact Info
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View allJohn Lam's Public Pulse Stream
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John Lam bookmarked a site on Ma.gnolia Jul 4, 2008 Sense Array: a collaborative filter SenseArray combines true collaborative filtering with demographics and taxonomies/folksonomies to prime its recommendations without much tedium of training the filter. Its “core recommendation algorithm has been extensively tested against standardized metrics. For example, when tested using 100 million ratings of half a million Netflix users, SenseArray performed 5% better than Netflix’ own recommendation algorithm.” Newsgator uses it for its online article recommendation algorithm. |
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John Lam submitted a site to Reddit Jun 13, 2008 |
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John Lam submitted a site to Reddit Jun 2, 2008 |
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John Lam bookmarked a site on Ma.gnolia Jun 1, 2008 Magnolia marker widget :: Firefox Add-ons This Firefox add-on widget, even in 0.8.01 beta, lacks only two features of the official marklets: the ability to post to groups and to select from existing tagsets. Compared to the official marklets, this marker widget load faster. With it, just right-click the page or invoke this widget from its toolbar icon, then mark, tag, and post the link to Magnolia. Tags: linkmarking, widget, Firefox, tagging, social computing, Web 2.0 |
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John Lam bookmarked a site on Ma.gnolia May 24, 2008 Quicksort, Heapsort, Fast Heapsort, and Entropy In asking why Heapsort works using twice the comparisons of Quicksort but in practice works 20% faster and yet both scale N·log·N on average, David Mackay uses entropy to tweak it and devise a simple and clever sort yet even closer to the information theoretic optimum: Fast Heapsort. He also suggests improvements to Quicksort, and poses a simple puzzle to convey why using entropy works better. Tags: Quicksort, Heapsort, Fast Heapsort, sorting, algorithm, programming, entropy, information theory, computer science, David Mackay |