the mathematics of search engine use

... from the University of Florence and a PhD from the University of Bologna He is the chairman of the Italian Chapter of the IEEE Computational Intelligence Society, a fellow of the IEEE and of the ... guaranteed by the search tools we use every day WHAT USERS KNOW ABOUT WEB SEARCH There is a mind-boggling supply of information on the web Search engines— the “web dragons” of the book’s title—mediate ... in the design of the protocols and the construction of the search engines But it has nevertheless become a valued part of our lives: we use it, we learn from it, we put information on it for others...

Ngày tải lên: 01/06/2014, 12:18

... you They will get lost in your text and either give up or come out the other end not knowing what it is they have read What about the second element of the formula, de-emphasise what is of secondary ... Therefore, whilst the underlying principles of good writing and good speaking are constant, the way they are applied can be markedly different In the 'I' of the Storm: the Simple Secrets of Writing ... stop them from reading it! There are various methods to generate such a strong desire to read, depending on the type of readers and the type of information Whatever the most appropriate device, the...

Ngày tải lên: 10/12/2013, 05:15

Ngày tải lên: 21/12/2013, 02:15

... 3-5 years, despite the seven-figure cost of implementation Student use of cell phones has increased significantly, as well But the greatest impact has been the extension of the classroom to a ... THE PROBLEM UCA wanted to provide students with ubiquitous laptop access to the UCA network and Internet throughout the campus In doing so, they would maximize the use of UCA’s multi-million ... information offered prior to class In class they can conduct web-based research Their presentations can blend audio and video media forms impossible without wireless And their instructors can offer them...

Ngày tải lên: 24/01/2014, 11:20

... the capabilities of search engines:      91% of search engine users say they always or most of the time find the information they are seeking when they use search engines 73% of search engine ... search engine they used most often while 26% named Yahoo Google is far and away the search engine of choice, preferred by 83% of search users % of search users who answered the question: Which search ... 55% of search engine users say that, in their experience, the quality of search results is getting better over time, while just 4% say it has gotten worse 52% of search engine users say search engine...

Ngày tải lên: 18/02/2014, 00:20

... custom-written code with significant use of off -the- shelf packages The interface with commercial search engines is accomplished straightforwardly by use of the WWW: :Search perl module (currently using ... important is that the structure produced when analyzing the query will be the same structure produced via analysis of the corresponding sentences in the corpus Other search features include the ability ... indexing the entire Web is beyond impractical, and therefore there is a clear tradeoff between rapid response time and the ability to search the Web as a whole In order to manage this tradeoff, the...

Ngày tải lên: 20/02/2014, 15:20

... undervaluing the role of user research in software design They assume that they understand the user well enough or that their interests are the same as their users’ interests, or they underestimate the ... The point of software isn’t necessarily to engross your users in the experience of using the software, it is to keep them focused on the ultimate goals they’re trying to accomplish in using the ... and bring them to the attention of the rest of the team The Elements of Engaging UX    31 www.it-ebooks.info A similar list can be made for each of the elements of good UX Good UX in software arises...

Ngày tải lên: 08/03/2014, 22:20

... margin (they would be the same whatever the size of the margin) Rather, the profits and losses are the product of the exposure of unit (1 futures contract) The amount put up as margin is further ... is the familiar Pythagorean Theorem: The hypotenuse of a right angle triangle squared equals the sum of the squares of its sides! But here the hypotenuse is A, and we want to maximize one of the ... axis being the geometric mean, the other being the value for f itself The higher the geometric mean at the optimal f, the better the system, Also, the lower the optimal f, the better the system...

Ngày tải lên: 23/03/2014, 23:20

... help the search engine in guessing the language in which the user wants to see the resulting web pages Since the real purpose of a search engine is to bring the expected results to its users, ... identification of other types of written texts, will not be helpful in this task due to the unique nature of the search engine queries For the morphological feature; we gathered the affix information ... outperforms all the models in Table for each size of the training data Furthermore, the performance of the system increases with the increasing size of training data In particular, the improvement...

Ngày tải lên: 30/03/2014, 23:20

... such Greek is the delta, which is the rate of change of the option premium with respect to the price of the underlying The delta is thus the slope of the tangent line to the graph of the option ... mathematics Nevertheless, since the subject of this book is the mathematics of finance, I have not watered down the mathematics in any way (appropriate to the level of the book, of course) That ... after the short sale, the buyer of the stock, who is the owner of record, will receive that dividend On the other hand, the lender of the shares is also entitled to the dividend Therefore, the...

Ngày tải lên: 31/03/2014, 22:21

... to preserve the character of the original volume The book contains a collection of mathematical solutions of the differential equations of diffusion and methods of obtaining them They are discussed ... would be 'Mathematical solutions of the diffusion equation', for it is with this aspect of the mathematics of diffusion that the book is mainly concerned It deals with the description of diffusion ... nor are theories of the mechanism of diffusion in particular systems included The mathematical theory of diffusion is founded on that of heat conduction and correspondingly the early part of this...

Ngày tải lên: 02/04/2014, 15:44

... Frequently Used Notations Search Games Lebesgue measure of the search space Minimal length of a tour that covers the search space Rate of discovery of the searcher Cost function (the payoff to the hider) ... Value of the hiding strategy Value of the search strategy Minimal value obtained by a pure search strategy (the “pure value” Value of the search game Maximal velocity of the hider A point in the search ... connect the same pair of nodes The sum of the lengths of the arcs in Q will be denoted by µ, and called either the total length or the measure In studying search trajectories in Q, we shall often use...

Ngày tải lên: 08/04/2014, 12:18

... depends on the expected return of all the asset returns in the portfolio) and the variance of the portfolio’s return (which depends on the variance of the return of all of the assets in the portfolio ... Testing The CAPM Deriving the Empirical Analogue of the CML Empricial Implications General Findings of Empirical Tests of the CAPM A Critique of Tests of the CAPM Merton and Black Modifications of the ... forces One is the variability of the price as measured, say, by some measure of dispersion of the relative price over time The greater the variability, the greater the probability of the market...

Ngày tải lên: 08/05/2014, 10:10

... research areas and fields that are already of great interest to a broad spectrum of the scientific community The Mathematics of Combustion is the second volume in this series The first is The Mathematics ... the burnt gas FIG 11 Variations of the stand-off distance with straining rate for different values of Lewis number 32 THE MATHEMATICS OF COMBUSTION towards the fresh mixture As in the case of ... much of the physics of high Mach number combustion waves that the notion that the dynamical behavior of the solutions (the focus of Stewart's work) can cast no useful light on the dynamics of physical...

Ngày tải lên: 31/05/2014, 01:52

... responsibility of the Department of Agriculture and Rural Development at the provincial level Evaluation of Policy Evaluation of livestock policy is the responsibility of the: • Department of Agriculture ... that they are not competitive, but there has been little research on the competitiveness of the small and medium mills, compared to the larger ones In this Policy Brief findings of a study on the ... mixed feed The effect of brand type on the cost of feed per kg of liveweight gain was also tested but there was no significant difference in the means Thus, while FCR was lower for the foreign...

Ngày tải lên: 21/06/2014, 05:20

... refers to the fifth problem in Chapter The symbol indicates the end of an example, and the symbol indicates the end of a proof Many of the theorems in the book are given names (for example, The Compound ... to the Mathematics of Money David Lovelock Marilou Mendel An Introduction to the Mathematics of Money Saving and Investing A Larry Wright David Lovelock Department of Mathematics University of ... be be be the the the the the the initial principal (present value, lump sum) invested, total number of interest periods, future value of P0 at the end of the nth interest period, number of interest...

Ngày tải lên: 28/06/2014, 21:20

... (the foot of the ovule) into the micropyle (the entrance of the ovule) following gradients generated by the maternal tissues of the ovule and by the female gametophyte An embryo sac contains the ... least) the diameter of the tube The model also assumes that the change in concentration across the tip of the tube is much less than the average concentration at the tip Despite being affected by the ... ovules to test the hypothesis of whether the system is sufficient to provide attraction to the pollen tube; this would validate the existence of gradients of attractants secreted from the ovules...

Ngày tải lên: 06/08/2014, 19:21

... creatures of habit They go in there, they get the habit formed of being safe, they'll use the same quality when they go out on the street "Oh, you have a tie-off? Do you ?" Y'know, they'll make ... that the overall environment of the SIF – including the provision of comprehensive sterile injecting paraphernalia and the constant presence of healthcare professionals – promotes the adoption of ... alter aspects of the context in which injection drug use occurs, thereby facilitating the adoption of safer injecting practices and the reduction of drugrelated harms [30] The results of this study...

Ngày tải lên: 11/08/2014, 18:20

... an eigenvalue of 5.14 The second factor featured an eigenvalue of 2.02, while the third factor had an eigenvalue of 0.97 Further, there was not enough evidence to reject the hypothesis that factors ... for injection drug users: Development and evaluation of the Injection Drug User Quality of Life Scale Subst Use and Misuse 2003, 38(7):965-992 Bourgois P: The moral economies of homeless heroin ... than half the interviewees were homeless at the time of the survey (average number of places slept in last week = 2.5) and another 10% were living in shelters Overall the sample consisted of older,...

Ngày tải lên: 11/08/2014, 18:20

... which they have no further use SB has seen them toss them into the grass beside a busy thoroughfare and throw them out of the windows of their homes 12.5.00 Munira followed Ali from near the premises ... observer of heroin or any other drug use As a woman in her forties SB was the same age as the parents of many of the users Crucially, certain key users who enjoyed high status amongst their peers ... [25] The assessments also included estimates of the proportion of heroin users who injected The first male key informant approached by SB estimated that 80% of users in the town inject Of the...

Ngày tải lên: 11/08/2014, 20:20