WolframAlpha, a powerful newservice that can answer a broad range of queries, has become one of the most anticipated Web products of the year. But its creator, Stephen Wolfram, wants to make something clear: Despite the online chatter comparing it to Google, his service is not intended to dethrone the king of search engines.
2009年5月11日星期一
New Search Tool Aims at Answering Tough Queries, but Not at Taking on Google
2009年4月23日星期四
How to Manage Your Reputation Online
Use your name to register your own Web site. I would also recommend a sub domain and a blog, again using your real name. Wordpressand LiveJournal both have high Google PageRanks. Look into how to use title tags and headers to further optimize your results. Almost without exception, your Web site will show up as the first result in your name search.
Piggyback off web sites whose pages rank high in Google. Social networking sites are great for this. Facebook, MySpace, LinkedIn, YouTube,Flickr, Naymz, Tumblr, Twitter, StumbleUpon, Vimeo, FriendFeed and Ningare great places to start. You don’t have to actively use these sites. Simplypark your profile, add the necessary amount of content and make sure to adjust the settings to public view where appropriate so that your profile can be crawled and indexed by Google
2009年4月5日星期日
Google Should Offer to Buy Twitter for $1 Billion
1. Google needs a huge new growth engine and Twitter might just fit the bill. The current search product cycle is coming to an end. Google needs an "Office" to go with its "Windows." It hasn't found one yet. Twitter--and real-time search--could end up being a monster. If Google waits around to see whether it really WILL be a monster, Twitter will be a hell of a lot more expensive. Remember when Yahoo's Terry Semel whiffed on buying Google?
2. Twitter is a hell of a lot more relevant to Google's business than other big Google ideas, such as YouTube or Larry Page's plan to have Google solve the world's energy crisis (see his crazy talk of two years ago). Twitter is also about communications, which is the one part of the content-communications-and-commerce Internet tripod that Google is still weak in.
3. $1 billion is couch change for Google. Google generates $1 billion of cash every two months. If Twitter ends up being worth $0, as some people persist in thinking, Google can just say "oops" and take a minor write-off. If Twitter ends up being worth a lot more than $1 billion, however, as we and others think is likely, Google will make money. If it ends up being a monster, Google will make a lot of money.
4. Twitter could conceivably threaten Google's cash cow--search.This "real-time search" meme is actually a compelling story-line. If you want to know what people are talking about right now, you go to Twitter, not Google. Twitter hasn't figured out how to make bank off that yet, but it may well do so. Remember how much ridicule was heaped on Google's worthless "search engine" in the early days?
5. Like Google, Twitter is already a verb. What company do you know of that owns two verbs?
Would $1 billion be enough to get the Twitter boys to part with their baby? It might, actually. $1 billion is still a lot of money, especially for a company with no revenue. And Google's global distribution and technology infrastructure would be a help to Twitter. So they'd be silly not to take the offer seriousy.
2009年4月1日星期三
wikideas.cn
2009年3月5日星期四
2009年2月24日星期二
the future of web search?
Exploring a ‘Deep Web’ That Google Can’t Grasp ,kosmix,deeppeep
“Most search engines try to help you find a needle in a haystack,” Mr. Rajaraman said, “but what we’re trying to do is help you explore the haystack.”似乎指出了搜索的前沿
但是,我提出一个更加wiki的方案:
一、Google也号,百度也好,yahoo也好,live也好,大家分工,对网络上的一切资源进行分类,各个搜索专门负责一块,这样就可以更加可能地深度搜索。
网络上需要路,一个公司是修不完所有的路的 。这样一来聚合搜索就可以了。
二、wikigle.每个网站自己把数据库标上门牌号。这样一来,即使网站天天在增加,搜索会立即搜到。
2009年2月22日星期日
Everyone Loves Google, Until It’s Too Big
2009年2月16日星期一
How Google Decides to Pull the Plug
Google also said it would stop actively developing Jaiku, a microblogging service similar to Twitter, and instead turn it over to its users as an open-source project they could tinker with as they wished.
“There’s no single equation that describes us, but we try to use data wherever possible,” said Jeff Huber, the company’s senior vice president of engineering. “What products have found an audience? Which ones are growing?”
All of the shuttered projects failed several of Google’s key tests for continued incubation: They were not especially popular with customers; they had difficulty attracting Google employees to develop them; they didn’t solve a big enough problem; or they failed to achieve internal performance targets known as “objectives and key results.”
2009年1月21日星期三
Barack Obama’s Inaugural Address
I stand here today humbled by the task before us, grateful for the trust you have bestowed, mindful of the sacrifices borne by our ancestors. I thank President Bush for his service to our nation, as well as the generosity and cooperation he has shown throughout this transition.
Forty-four Americans have now taken the presidential oath. The words have been spoken during rising tides of prosperity and the still waters of peace. Yet, every so often the oath is taken amidst gathering clouds and raging storms. At these moments, America has carried on not simply because of the skill or vision of those in high office, but because We the People have remained faithful to the ideals of our forbearers, and true to our founding documents.
So it has been. So it must be with this generation of Americans.
That we are in the midst of crisis is now well understood. Our nation is at war, against a far-reaching network of violence and hatred. Our economy is badly weakened, a consequence of greed and irresponsibility on the part of some, but also our collective failure to make hard choices and prepare the nation for a new age. Homes have been lost; jobs shed; businesses shuttered. Our health care is too costly; our schools fail too many; and each day brings further evidence that the ways we use energy strengthen our adversaries and threaten our planet.
These are the indicators of crisis, subject to data and statistics. Less measurable but no less profound is a sapping of confidence across our land - a nagging fear that America’s decline is inevitable, and that the next generation must lower its sights.
Today I say to you that the challenges we face are real. They are serious and they are many. They will not be met easily or in a short span of time. But know this, America - they will be met.
On this day, we gather because we have chosen hope over fear, unity of purpose over conflict and discord.
On this day, we come to proclaim an end to the petty grievances and false promises, the recriminations and worn out dogmas, that for far too long have strangled our politics.
We remain a young nation, but in the words of Scripture, the time has come to set aside childish things. The time has come to reaffirm our enduring spirit; to choose our better history; to carry forward that precious gift, that noble idea, passed on from generation to generation: the God-given promise that all are equal, all are free, and all deserve a chance to pursue their full measure of happiness.
In reaffirming the greatness of our nation, we understand that greatness is never a given. It must be earned. Our journey has never been one of short-cuts or settling for less. It has not been the path for the faint-hearted - for those who prefer leisure over work, or seek only the pleasures of riches and fame. Rather, it has been the risk-takers, the doers, the makers of things - some celebrated but more often men and women obscure in their labor, who have carried us up the long, rugged path towards prosperity and freedom.
For us, they packed up their few worldly possessions and traveled across oceans in search of a new life.
For us, they toiled in sweatshops and settled the West; endured the lash of the whip and plowed the hard earth.
For us, they fought and died, in places like Concord and Gettysburg; Normandy and Khe Sanh.
Time and again these men and women struggled and sacrificed and worked till their hands were raw so that we might live a better life. They saw America as bigger than the sum of our individual ambitions; greater than all the differences of birth or wealth or faction.
This is the journey we continue today. We remain the most prosperous, powerful nation on Earth. Our workers are no less productive than when this crisis began. Our minds are no less inventive, our goods and services no less needed than they were last week or last month or last year. Our capacity remains undiminished. But our time of standing pat, of protecting narrow interests and putting off unpleasant decisions - that time has surely passed. Starting today, we must pick ourselves up, dust ourselves off, and begin again the work of remaking America.
For everywhere we look, there is work to be done. The state of the economy calls for action, bold and swift, and we will act - not only to create new jobs, but to lay a new foundation for growth. We will build the roads and bridges, the electric grids and digital lines that feed our commerce and bind us together. We will restore science to its rightful place, and wield technology’s wonders to raise health care’s quality and lower its cost. We will harness the sun and the winds and the soil to fuel our cars and run our factories. And we will transform our schools and colleges and universities to meet the demands of a new age. All this we can do. And all this we will do.
Now, there are some who question the scale of our ambitions - who suggest that our system cannot tolerate too many big plans. Their memories are short. For they have forgotten what this country has already done; what free men and women can achieve when imagination is joined to common purpose, and necessity to courage.
What the cynics fail to understand is that the ground has shifted beneath them - that the stale political arguments that have consumed us for so long no longer apply. The question we ask today is not whether our government is too big or too small, but whether it works - whether it helps families find jobs at a decent wage, care they can afford, a retirement that is dignified. Where the answer is yes, we intend to move forward. Where the answer is no, programs will end. And those of us who manage the public’s dollars will be held to account - to spend wisely, reform bad habits, and do our business in the light of day - because only then can we restore the vital trust between a people and their government.
Nor is the question before us whether the market is a force for good or ill. Its power to generate wealth and expand freedom is unmatched, but this crisis has reminded us that without a watchful eye, the market can spin out of control - and that a nation cannot prosper long when it favors only the prosperous. The success of our economy has always depended not just on the size of our Gross Domestic Product, but on the reach of our prosperity; on our ability to extend opportunity to every willing heart - not out of charity, but because it is the surest route to our common good.
As for our common defense, we reject as false the choice between our safety and our ideals. Our Founding Fathers, faced with perils we can scarcely imagine, drafted a charter to assure the rule of law and the rights of man, a charter expanded by the blood of generations. Those ideals still light the world, and we will not give them up for expedience’s sake. And so to all other peoples and governments who are watching today, from the grandest capitals to the small village where my father was born: know that America is a friend of each nation and every man, woman, and child who seeks a future of peace and dignity, and that we are ready to lead once more.
Recall that earlier generations faced down fascism and communism not just with missiles and tanks, but with sturdy alliances and enduring convictions. They understood that our power alone cannot protect us, nor does it entitle us to do as we please. Instead, they knew that our power grows through its prudent use; our security emanates from the justness of our cause, the force of our example, the tempering qualities of humility and restraint.
We are the keepers of this legacy. Guided by these principles once more, we can meet those new threats that demand even greater effort - even greater cooperation and understanding between nations. We will begin to responsibly leave Iraq to its people, and forge a hard-earned peace in Afghanistan. With old friends and former foes, we will work tirelessly to lessen the nuclear threat, and roll back the specter of a warming planet. We will not apologize for our way of life, nor will we waver in its defense, and for those who seek to advance their aims by inducing terror and slaughtering innocents, we say to you now that our spirit is stronger and cannot be broken; you cannot outlast us, and we will defeat you.
For we know that our patchwork heritage is a strength, not a weakness. We are a nation of Christians and Muslims, Jews and Hindus - and non-believers. We are shaped by every language and culture, drawn from every end of this Earth; and because we have tasted the bitter swill of civil war and segregation, and emerged from that dark chapter stronger and more united, we cannot help but believe that the old hatreds shall someday pass; that the lines of tribe shall soon dissolve; that as the world grows smaller, our common humanity shall reveal itself; and that America must play its role in ushering in a new era of peace.
To the Muslim world, we seek a new way forward, based on mutual interest and mutual respect. To those leaders around the globe who seek to sow conflict, or blame their society’s ills on the West - know that your people will judge you on what you can build, not what you destroy. To those who cling to power through corruption and deceit and the silencing of dissent, know that you are on the wrong side of history; but that we will extend a hand if you are willing to unclench your fist.
To the people of poor nations, we pledge to work alongside you to make your farms flourish and let clean waters flow; to nourish starved bodies and feed hungry minds. And to those nations like ours that enjoy relative plenty, we say we can no longer afford indifference to suffering outside our borders; nor can we consume the world’s resources without regard to effect. For the world has changed, and we must change with it.
As we consider the road that unfolds before us, we remember with humble gratitude those brave Americans who, at this very hour, patrol far-off deserts and distant mountains. They have something to tell us today, just as the fallen heroes who lie in Arlington whisper through the ages. We honor them not only because they are guardians of our liberty, but because they embody the spirit of service; a willingness to find meaning in something greater than themselves. And yet, at this moment - a moment that will define a generation - it is precisely this spirit that must inhabit us all.
For as much as government can do and must do, it is ultimately the faith and determination of the American people upon which this nation relies. It is the kindness to take in a stranger when the levees break, the selflessness of workers who would rather cut their hours than see a friend lose their job which sees us through our darkest hours. It is the firefighter’s courage to storm a stairway filled with smoke, but also a parent’s willingness to nurture a child, that finally decides our fate.
Our challenges may be new. The instruments with which we meet them may be new. But those values upon which our success depends - hard work and honesty, courage and fair play, tolerance and curiosity, loyalty and patriotism - these things are old. These things are true. They have been the quiet force of progress throughout our history. What is demanded then is a return to these truths. What is required of us now is a new era of responsibility - a recognition, on the part of every American, that we have duties to ourselves, our nation, and the world, duties that we do not grudgingly accept but rather seize gladly, firm in the knowledge that there is nothing so satisfying to the spirit, so defining of our character, than giving our all to a difficult task.
This is the price and the promise of citizenship.
This is the source of our confidence - the knowledge that God calls on us to shape an uncertain destiny.
This is the meaning of our liberty and our creed - why men and women and children of every race and every faith can join in celebration across this magnificent mall, and why a man whose father less than sixty years ago might not have been served at a local restaurant can now stand before you to take a most sacred oath.
So let us mark this day with remembrance, of who we are and how far we have traveled. In the year of America’s birth, in the coldest of months, a small band of patriots huddled by dying campfires on the shores of an icy river. The capital was abandoned. The enemy was advancing. The snow was stained with blood. At a moment when the outcome of our revolution was most in doubt, the father of our nation ordered these words be read to the people:
"Let it be told to the future world...that in the depth of winter, when nothing but hope and virtue could survive...that the city and the country, alarmed at one common danger, came forth to meet [it]."
America. In the face of our common dangers, in this winter of our hardship, let us remember these timeless words. With hope and virtue, let us brave once more the icy currents, and endure what storms may come. Let it be said by our children’s children that when we were tested we refused to let this journey end, that we did not turn back nor did we falter; and with eyes fixed on the horizon and God’s grace upon us, we carried forth that great gift of freedom and delivered it safely to future generations.
2009年1月11日星期日
英文文献免费迅速下载法
进入http://www.sciencedirect.com,在“Quick
Search”栏输入你欲检索的关键词,例如,你检索小檗碱,输入berberine,点按纽“go”,结果是255 Articles
Found;
步骤二:
找到你需要的文献,在其全文链接的的“PDF(***K)”处点右键,看“属性”,将其地址复制到Word中并回车。如文献Synthesis
and DNA-binding affinities of monomodified berberines 的地址是PDF (352
K)。 循环步骤一、二将你所有欲查的文献的全文地址全部粘贴到Word中并最后另存为Web文件。
步骤三:
注意,其他文章也可如法“目标另存为”,但你会发现速度很慢,怎么办?没关系,在第一篇文章存盘完毕后,请取消代理,再点“目标另存为”,呵呵,是不是速度很快了?
附加说明:
1 查文献、下文献时为什么不一直使用代理?
这是因为下第一篇文章时SD已记忆你的cookies,但是,时间一长,cookies将失效。