Discovering repetitive, interesting, and functional substructures in a structural database improves the ability to interpret and compress the data. However, scientists working with a database in their area of expertise often search for predetermined types of structures, or for structures exhibiting characteristics speciic to the domain. This paper presents a method for guiding the discovery pro...

This paper analyzes how producer cooperatives may bene t households in rural environments. In particular, it explores if cooperatives help poor households to exit poverty through three mechanisms: increases in prices, total factor productivity, and relaxation of credit constraints. In a multi-period model I characterize the conditions that must hold so that the always poor can exit poverty when...

Mixed task and data parallelism exists naturally in many applications, but utilizing it may require sophisticated scheduling algorithms and software support. Recently, signi cant research e ort has been applied to exploiting mixed parallelism in both theory and systems communities. In this paper, we ask how much mixed parallelism will improve performance in practice, and how architectural evolu...

Ha un senso parlare oggi di diritto e Sacra Scrittura? E cercare capire come può questo rapporto aiutare l’uomo moderno nel suo anelito verso la verità, con Dio?
 Il non prescindere dalla Scrittura che, in quanto Parola Dio, va sempre tenuta presente, sia da parte dei giuristi che politici cattolici, nella gestione del bene comune.
 Chiesa trova il fondamento Scrittura, è dono Dio att...

Clastres ‘de-substantializes’ the state, which is not ‘the Elysium, the White House, the Kremlin,’ but ‘an actualization of a relation of power.’ There is no reason, therefore, to believe that, in a Durkheimian mood, he has reified society. Even though he makes no use of the concept, I believe there is already a concept of ‘sociality’ at work in Clastres: hence, the idea of sociality against th...

Lot streaming is the process of splitting a production lot into sublots, and then scheduling the sublots in overlapping fashion on the machines, in order to improve the overall performance of the production system. Simulation-based and industry-based reports have con"rmed that substantial bene"ts are possible via lot streaming. In this paper, we present, for the "rst time, analytical results pe...

This paper explores the bene"t of combining the data of a microwave phased-array radar with those of a low-frequency radar to detect and track a target with a low radar cross-section. The microwave phased-array radar has a fairly good target location accuracy that can be fruitfully combined with the good detection capabilities of the low-frequency radar. One technical problem to solve is the de...

Language designers introduce new language features in programming languages because those features are claimed to be bene cial. In this paper, we investigate claims made about the generics language feature, and compare how those claims stack up in C# versus Java. Through an empirical study of the generics feature in open-source projects, we found that (1) although they have the same claimed ben...

Technology spillovers o¤er great opportunities for economic growth to developing countries that do little, if any, R&D activity. This paper explores the extent to which these countries bene…t from foreign technology, the di¤usion mechanisms involved, the factors that shape their absorption capabilities, and the sources of heterogeneity in the spillover gains. Results based on a non-stationary p...

If the bene ciary of an altruist's gift can be expected to use this gift e ciently, then a pure altruist (one who cares about the bene ciary's utility level, but not how utility is obtained) should only give gifts of money. This is often interpreted to mean that any other type of gift is evidence of paternal altruism. However, it is known (Linbeck and Weibull (1988)) that altruism creates an in...