Computer professionals celebrate 10th birthday of A.L.I.C.E.

Wednesday, November 30, 2005File:Turing1.jpg

More than 50 programmers, scientists, students, hobbyists and fans of the A.L.I.C.E. chat robot gathered in Guildford, U.K. on Friday to celebrate the tenth birthday of the award winning A.I. On hand was the founder the Loebner Prize, an annual Turing Test, designed to pick out the world’s most human computer according to an experiment laid out by the famous British mathematician Alan Turing more then 50 years ago. Along with A.L.I.C.E.’s chief programmer Dr. Richard S. Wallace, two other Loebner prize winners, Robby Garner and this year’s winner, Rollo Carpenter, also gave presentations, as did other finalists.

The University of Surrey venue was chosen, according to Dr. Wallace, not only because it was outside the U.S. (A.L.I.C.E.’s birthday fell on the Thanksgiving Day weekend holiday there, so he expected few people would attend a conference in America), but also because of its recently erected statue of Alan Turing, who posed the famous A. I. experiment which inspired much of the work on bots like A.L.I.C.E. University of Surrey Digital World Research Centre organizers Lynn and David Hamill were pleased to host the event because it encourages multi-disciplinary interaction, and because of the Centre’s interest in interaction between humans and computers.File:ALICE Birthday Cake.jpg

Dr. Wallace gave a keynote address outlining the history of A.L.I.C.E. and AIML. Many people commented on the fact the he seemed to have moved around a lot in the last ten years, having lived in New York, Pennsylvania, San Francisco, Maine, Amsterdam and Philadelphia, while working on the Alicebot project. The A.L.I.C.E. and AIML software is popular among chat robot enthusiats primarily because of its distribution under the GNU free software license. One of Dr. Wallace’s PowerPoint slides asked the question, “How do you make money from free software?” His answer: memberships, subscriptions, books, directories, syndicated ads, consulting, teaching, and something called the Superbot.

Rollo Carpenter gave a fascinating presentation on his learning bot Jabberwacky, reading from several sample conversations wherein the bot seemed amazingly humanlike. Unlike the free A.L.I.C.E. software, Carpenter uses a proprietary learning approach so that the bot actually mimics the personality of each individual chatter. The more people who chat with Jabberwacky, the better it becomes at this kind of mimicry.

In another interesting presentation, Dr. Hamill related present-day research on chat robots to earlier work on dialog analysis in telephone conversations. Phone calls have many similarities to the one-on-one chats that bots encounter on the web and in IM. Dr. Hamill also related our social expectations of bots to social class structure and how servants were expected to behave in Victorian England. He cited the famous Microsoft paperclip as the most egregius example of a bot that violated all the rules of a good servant’s behavior.

Bots have advanced a long way since philanthropist Hugh Loebner launched his controversial contest 15 years ago. His Turing Test contest, which offers an award of $100,000 for the first program to pass an “audio-visual” version of the game, also awards a bronze medal and $2000 every year for the “most human computer” according to a panel of judges. Huma Shah of the University of Westminster presented examples of bots used by large corporations to help sell furniture, provide the latest information about automotive products, and help customers open bank accounts. Several companies in the U.S. and Europe offer customized bot personalities for corporate web sites.

Even though Turing’s Test remains controversial, this group of enthusiastic developers seems determined to carry on the tradition and try to develop more and more human like chat bots.Hugh Loebner is dedicated to carry on his contest for the rest of his life, in spite of his critics. He hopes that a large enough constituency of winners will exist to keep the competition going well beyond his own lifetime. Dr. Wallace says, “Nobody has gotten rich from chat robots yet, but that doesn’t stop people from trying. There is such a thing as ‘bot fever’. For some people who meet a bot for the first time, it can pass the Turing Test for them, and they get very excited.”

Tuesday, February 19, 2008

While nearly all cover of the 2008 Presidential election has focused on the Democratic and Republican candidates, the race for the White House also includes independents and third party candidates. These parties represent a variety of views that may not be acknowledged by the major party platforms.

As a non-partisan news source, Wikinews has impartially reached out to these candidates, throughout the campaign. The most recent of our interviews is Gaithersburg, Maryland’s Richard H. Clark (b. 1960), a senior software engineer and member of MENSA.

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Tuesday, February 26, 2008

Users worldwide are reporting that they are unable to login to Microsoft’s (MS) live services such as Hotmail, Windows Live Messenger, and in some cases Xbox Live. Problems reportedly began around 6:30 a.m. eastern time.

“We are aware that some customers may be experiencing difficulty accessing their Windows Live accounts. We’re actively investigating the cause and are working to take the appropriate steps to remedy the situation as rapidly as possible. We sincerely apologize for any inconvenience and disruption this may be causing our customers,” said MS in a statement to the media.

The exact number of users affected by the outage is not yet known. MS has not stated when the problem will be fixed.

Monday, August 7, 2006

Dogs can be trained to detect early and late stages of lung and breast cancer accurately according to a study published by California scientists in the little-known scientific journal Integrative Cancer Therapies.

The study took place over the last five years at the Pine Street Foundation, a non-profit organization which conducts evidence-based research on integrative medicine (combining complementary and alternative medicine and mainstream medicine). Michael McCulloch and colleagues used three Labrador Retrievers and two Portuguese Water Dogs, both common pets, that received basic behavioral dog training. The researchers trained the dogs to lie down next to a sample from a cancer patient and to ignore other samples.

The samples used were breath samples from 55 patients with lung cancer and 31 with breast cancer — the two types of cancer with the highest mortality rates in the United States.

After the training phase, the dogs’ accuracy diagnosis was tested in a double-blind experiment. Among lung cancer patients, the sensitivity and specificity were 99% accurate and for breast cancer sensitivity was 88% and specificity 98%. Because these figures seem almost too good to be true, cancer experts are the same time baffled and skeptical. The authors of the study themselves also say replication of the study is needed.

Importantly, this was independent of the cancer stage, meaning the dogs were able to pick up the scent of cancer in its early stages. This is important because in many cases, the success of any treatment depends on early diagnosis. However, the researchers don’t believe this will lead to the use of dogs in the clinic soon, rather they want to find out which chemicals are actually sensed by the canines, because they could be used in laboratory assays. “It’s not like someone would start chemotherapy based on a dog test,” Dr. Gansler of the American Cancer Society said, “They’d still get a biopsy.”.

The researchers were inspired by anecdotal reports about dogs detecting cancer. In 1989, a British women consulted with her family physician because her Dalmatian kept licking a mole on her leg. At biopsy it showed to be malignant melanoma. When diagnosed too late this form of cancer has a poor survival rate, but in this case early surgery was made possible, and the women survived. Prior studies showed that breath samples from patients with lung cancer or breast cancer contain distinct biochemical markers. This provides a basis for the hypothesis that some cancer types produce volatile chemicals that dogs could smell. A study published in the British Medical Journal already proved that dogs could use their exquisite sense of smell to detect bladder cancer in urine samples, but they were only correct in 41% of cases, and another study provided preliminary evidence that dogs could detect melanomas.

This doesn’t mean you can show your breasts to your dog and it will tell you if you have cancer, other physicians caution, and scientists do not advise people to train their dogs to sniff for cancer. Unresolved issues from the study include the fact that subjects were required to breathe deeper than normal, so it’s not sure whether dogs can smell cancer in normal breath. Also, whether this is a permanent skill that would be retained by dogs was not tested.

Finally, there are concerns that could arise over liability issues: who would be responsible when the dog makes a mistake?

Current detection methods for both lung and breast cancer are not flawless. For lung cancer, chest X-ray and sputum cytology (detecting cancer cells in coughed up fluid) fail to detect many early cases, and CT scan produces many false-positive results unless combined with expensive PET scans. Although it might be comparing apples and oranges, a $2.5 million CT scanner has an accuracy of 85 to 90%. Mammography also produces false-positive results, and it may be difficult in women with dense breast tissue. As such, another type of “pet”-scan, using dogs as a biological assay, might prove feasible for screening if supported by further research. Current tests are also expensive so the use of dogs for preliminary cancer testing could prove to be an affordable alternative for countries in the developing world.

Wednesday, December 5, 2007

On Tuesday, the United States Senate Committee on Homeland Security and Governmental Affairs‘s Permanent Subcommittee on Investigations held a hearing titled “Credit Card Practices: Unfair Interest Rate Increases.” The hearing examined the circumstances under which credit card issuers may increase the interest rates of cardholders who are in compliance with the terms of their credit cards. It was a follow-up to a March 2007 hearing.

Subcommittee Chairman Carl Levin said in his opening statement: “Today’s focus is on credit card issuers who hike the interest rates of cardholders who play by the rules — meaning those folks who pay on time, pay at least the minimum amount due, and wake up one day to find their interest rate has gone through the roof — again, not because they paid late or exceeded the credit limit, but because their credit card issuer decided they should be ‘repriced’.”

Present to testify on behalf of credit card issuers were Roger C. Hochschild of Discover Financial Services, Bruce L. Hammonds of Bank of America Corporation, and Ryan Schneider of Capital One Financial Corporation.

Much of the 90 minute hearing focused on specific cases where interest rates were raised, allegedly because credit scores of the debtor dropped, and not because they were delinquent or otherwise behind on payments. According to Levin, this practice made it so that almost all payments went towards finance charges with almost none toward repaying the principal. This, he felt, is an unfair practice, as the credit card companies were negligent in informing their customers of the rate hikes and the reason for such hikes.

The collective credit card debt of Americans totals an estimated US$900 billion. Issuers have come under pressure to disclose their policies in regards to setting fees and interest rates. The US Truth in Lending Act requires that terms of a loan be set forth up front. Fluctuating interest rates on credit cards would, on the surface, appear to violate this act.

Roger C. Hochschild disagreed, arguing that “every card transaction is a new extension of credit … This makes it difficult — and risky — to underwrite, and price, the loan based solely on the borrower’s credit-worthiness at the time of application [for the card].”

Ryan Schneider, agreed: “The ability to modify the terms of a credit card agreement to accommodate changes over time to the economy or the credit-worthiness of consumers must be preserved.”

“Attempts to interfere with the market here … will inevitably result in less credit being offered,” warned Bruce Hammonds. “Risk-based pricing has democratized access to credit,” he added.

All three credit card executives also mentioned an ongoing Federal Reserve System review of credit card rules that already proposes a 45-day notification ahead of any rate changes.

Committee members criticized the industry for varying practices. Included in the criticism was the practice of mailing checks to card-holders, failing to notify applicants that obtaining additional cards could lower their credit score and raise their rates, and “ambushing” card-holders with raised rates.

Ranking minority member of the subcommittee, Norm Coleman said, “families find themselves ensnared in a seemingly inescapable web of credit card debt. They particularly report being saddled with interest rates that skyrocketed on them seemingly out of the blue.”

Tuesday, September 18, 2007

Peter Ormond is running for the Green Party of Ontario in the Ontario provincial election, in the Hamilton Centre riding. Wikinews’ Nick Moreau interviewed him regarding his values, his experience, and his campaign.

Ormond did not answer three questions: “Which of your competitors do you expect to pose the biggest challenge to your candidacy? Why? What makes you the most desirable of all candidates running in the riding?”, “Are the property taxes in your riding at a fair level for the amount of services received in the municipality?”, and “Of the decisions made by Ontario’s 38th Legislative Assembly, which was the most beneficial to your this electoral district? To the province as a whole? Which was least beneficial, or even harmful, to your this riding? To the province as a whole?”

Stay tuned for further interviews; every candidate from every party is eligible, and will be contacted. Expect interviews from Liberals, Progressive Conservatives, New Democratic Party members, Ontario Greens, as well as members from the Family Coalition, Freedom, Communist, Libertarian, and Confederation of Regions parties, as well as independents.

May 2, 2007

20-year-old pitching phenom Phil Hughes cruised through hitters in just his second start for the New York Yankees, but the end result created even more frustration for the organization and fans everywhere.

Hughes retired 19 Texas Rangers without allowing a hit on Tuesday at the Rangers Ballpark in Arlington. Established big league stars such as Kenny Lofton, Mark Teixeira and Michael Young could not solve the youngster’s blazing fastball or sharply biting curve. Hughes was on the verge of history. Even as his pitch count rose, the Yankees allowed him to keep firing. “He was fine,” manager Joe Torre said of the 2004 first round draft pick. “We were going to allow him to go 100 pitches last time, so I didn’t think that would be a problem.”

Just when the Yankees thought they found an answer to their early struggles, the organization was treated to an agonizing sight. After Teixeira fouled off an 0-2 pitch with one out in the sixth inning, Hughes grabbed his leg, having suffered a hamstring injury. His no-hit bid ended there (Texas would break up the no-hitter in the eighth inning off reliever Mike Myers), though he did earn his first big league win in a 10-1 Yankee romp over Texas. He walked off the mound under his own power, but will reportedly miss 4-6 weeks.

Hughes voiced his frustration afterwards: “It’s tough. It puts a damper on the whole thing.” He added, “I’m at a point now where our rotation really needs it,” referring to his presence on the New York pitching staff. Several Yankees have already voiced their excitement for the righthander’s chances in the big leagues. For his part, Yankees star Jason Giambi compared him to Roger Clemens during Spring Training: “He looks like a young Rocket.”

The Yankees are currently just 10-14, thanks in large part to injuries that have befallen pitchers Chien-Ming Wang, Mike Mussina, Carl Pavano and Jeff Karstens. In a related story from today, the Yankees fired strength and conditioning coach Marty Miller. Reportedly, this was out of general manager Brian Cashman’s concern for the alarming number of hamstring injuries so far this season.