TY - JOUR AU - Sziklai, Balázs AU - Lengyel, Balázs TI - Audience selection for maximizing social influence JF - NETWORK SCIENCE J2 - NETWORK SCI VL - 12 PY - 2024 IS - 1 SP - 65 EP - 87 PG - 23 SN - 2050-1242 DO - 10.1017/nws.2023.23 UR - https://m2.mtmt.hu/api/publication/34531388 ID - 34531388 AB - Viral marketing campaigns target primarily those individuals who are central in social networks and hence have social influence. Marketing events, however, may attract diverse audience. Despite the importance of event marketing, the influence of heterogeneous target groups is not well understood yet. In this paper, we define the Audience Selection (AS) problem in which different sets of agents need to be evaluated and compared based on their social influence. A typical application of Audience selection is choosing locations for a series of marketing events. The Audience selection problem is different from the well-known Influence Maximization (IM) problem in two aspects. Firstly, it deals with sets rather than nodes. Secondly, the sets are diverse, composed by a mixture of influential and ordinary agents. Thus, Audience selection needs to assess the contribution of ordinary agents too, while IM only aims to find top spreaders. We provide a systemic test for ranking influence measures in the Audience Selection problem based on node sampling and on a novel statistical method, the Sum of Ranking Differences. Using a Linear Threshold diffusion model on two online social networks, we evaluate eight network measures of social influence. We demonstrate that the statistical assessment of these influence measures is remarkably different in the Audience Selection problem, when low-ranked individuals are present, from the IM problem, when we focus on the algorithm’s top choices exclusively. LA - English DB - MTMT ER - TY - CHAP AU - Lengyel, Balázs AU - Tóth, Gergő AU - Wachs, Johannes ED - Szabó-Morvai, Ágnes ED - Pető, Rita TI - Kapcsolathálózatok és jövedelemegyenlőtlenség a magyar városokban T2 - Munkaerőpiaci tükör 2022 PB - Közgazdaság- és Regionális Tudományi Kutatóközpont, Közgazdaságtudományi Intézet, HUN-REN Magyar Kutatási Hálózat CY - Budapest T3 - Munkaerőpiaci Tükör, ISSN 1586-460X PY - 2023 SP - 164 EP - 168 PG - 5 UR - https://m2.mtmt.hu/api/publication/34434534 ID - 34434534 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Lengyel, Imre AU - Lengyel, Balázs TI - In memoriam Varga Attila (1958-2023) JF - TÉR ÉS TÁRSADALOM J2 - TÉR ÉS TÁRSADALOM VL - 37 PY - 2023 IS - 4 SP - 122 EP - 126 PG - 5 SN - 0237-7683 DO - 10.17649/TET.37.4.3542 UR - https://m2.mtmt.hu/api/publication/34415998 ID - 34415998 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Wilhelm, Imola Mária AU - Dékány, Éva Katalin AU - Hatvani, István Gábor AU - Fröhlich, Georgina AU - Micskei, Zoltán Imre AU - Pach, Péter Pál AU - Toldy, Andrea AU - Solymosi, Katalin AU - Szentgáli-Tóth, Boldizsár Artúr AU - Lengyel, Balázs TI - A Fiatal Kutatók Akadémiájának javaslatai a magyarországi fiatal kutatók helyzetének javítására JF - MAGYAR TUDOMÁNY J2 - MAGYAR TUDOMÁNY VL - 184 PY - 2023 IS - 12 SP - 1544 EP - 1565 PG - 7 SN - 0025-0325 DO - 10.1556/2065.184.2023.12.11 UR - https://m2.mtmt.hu/api/publication/34412830 ID - 34412830 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Németh, Brigitta AU - Munkácsy, B AU - Vida, Zsófia Viktória AU - Fröhlich, Georgina AU - Hatvani, István Gábor AU - Tóth, György AU - Solymosi, Katalin AU - Máté, Ágnes AU - Lőrincz, László AU - Lengyel, Balázs TI - Egyenlőtlenségek a magyarországi fiatal kutatók között: tanulságok a Fiatal Kutatók Akadémiájának 2021-es felméréséből JF - MAGYAR TUDOMÁNY J2 - MAGYAR TUDOMÁNY VL - 184 PY - 2023 IS - 12 SP - 1529 EP - 1543 PG - 15 SN - 0025-0325 DO - 10.1556/2065.184.2023.12.10 UR - https://m2.mtmt.hu/api/publication/34412825 ID - 34412825 N1 - A tanulmány az MTA és az FKA kiadásában megjelent, A fiatalok helyzete az akadémiai pályán c. jelentés alapján készült (Bp. 2022. [33192830]) LA - Hungarian DB - MTMT ER - TY - JOUR AU - Kogler, Dieter F. AU - Whittle, Adam AU - Kim, Keungoui AU - Lengyel, Balázs TI - Understanding Regional Branching. Knowledge Diversification via Inventor and Firm Collaboration Networks TS - Knowledge Diversification via Inventor and Firm Collaboration Networks JF - ECONOMIC GEOGRAPHY J2 - ECON GEOGR VL - 99 PY - 2023 IS - 5 SP - 471 EP - 498 PG - 28 SN - 0013-0095 DO - 10.1080/00130095.2023.2242551 UR - https://m2.mtmt.hu/api/publication/34193745 ID - 34193745 LA - English DB - MTMT ER - TY - JOUR AU - Abbasiharofteh, M AU - Kogler, D F AU - Lengyel, Balázs TI - Atypical combinations of technologies in regional co-inventor networks JF - RESEARCH POLICY J2 - RES POLICY VL - 52 PY - 2023 IS - 10 PG - 17 SN - 0048-7333 DO - 10.1016/j.respol.2023.104886 UR - https://m2.mtmt.hu/api/publication/34171927 ID - 34171927 N1 - Department of Economic Geography, Faculty of Spatial Sciences, University of Groningen, Groningen, 9747 AD, Netherlands Department of Human Geography and Spatial Planning, Utrecht University, Utrecht, 3584 CB, Netherlands Department of Structural Change, Leibniz Institute of Agricultural Development in Transition Economies, Halle, 06120, Germany Spatial Dynamics Lab, University College Dublin, Dublin, D04 V1W8, Ireland Insight Centre for Data Analytics, University College Dublin, Dublin, D04 V1W8, Ireland School of Architecture, Planning & Environmental Policy, University College Dublin, Dublin, D04 V1W8, Ireland Agglomeration and Social Networks Lendület Research Group, Centre for Economic- and Regional Studies, Eötvös Loránd Research Network, Budapest, 1097, Hungary Laboratory for Networks, Technology and Innovation, Corvinus Institute for Advanced Studies, Corvinus University of Budapest, Budapest, 1093, Hungary Institute of Data Analytics and Information Systems, Corvinus University of Budapest, Budapest, 1093, Hungary Cited By :2 Export Date: 29 April 2024 CODEN: REPYB Correspondence Address: Abbasiharofteh, M.; Department of Economic Geography, Netherlands; email: m.abbasiharofteh@rug.nl LA - English DB - MTMT ER - TY - JOUR AU - Juhász, Sándor AU - Pintér, Gergő AU - Kovács, Ádám J. AU - Borza, Endre Márk AU - Mónus, Gergely AU - Lőrincz, László AU - Lengyel, Balázs TI - Amenity complexity and urban locations of socio-economic mixing JF - EPJ DATA SCIENCE J2 - EPJ DATA SCI VL - 12 PY - 2023 IS - 1 PG - 18 SN - 2193-1127 DO - 10.1140/epjds/s13688-023-00413-6 UR - https://m2.mtmt.hu/api/publication/34129889 ID - 34129889 AB - Cities host diverse people and their mixing is the engine of prosperity. In turn, segregation and inequalities are common features of most cities and locations that enable the meeting of people with different socio-economic status are key for urban inclusion. In this study, we adopt the concept of economic complexity to quantify the sophistication of amenity supply at urban locations. We propose that neighborhood complexity and amenity complexity are connected to the ability of locations to attract diverse visitors from various socio-economic backgrounds across the city. We construct the measures of amenity complexity based on the local portfolio of diverse and non-ubiquitous amenities in Budapest, Hungary. Socio-economic mixing at visited third places is investigated by tracing the daily mobility of individuals and by characterizing their status by the real-estate price of their home locations. Results suggest that measures of ubiquity and diversity of amenities do not, but neighborhood complexity and amenity complexity are correlated with the urban centrality of locations. Urban centrality is a strong predictor of socio-economic mixing, but both neighborhood complexity and amenity complexity add further explanatory power to our models. Our work combines urban mobility data with economic complexity thinking to show that the diversity of non-ubiquitous amenities, central locations, and the potentials for socio-economic mixing are interrelated. LA - English DB - MTMT ER - TY - GEN AU - Sándor, Juhász AU - Gergő, Pintér AU - Ádám, Kovács AU - Endre, Borza AU - Mónus, Gergely AU - Lőrincz, László AU - Lengyel, Balázs TI - Amenity complexity and urban locations of socio-economic mixing PY - 2023 UR - https://m2.mtmt.hu/api/publication/33870804 ID - 33870804 LA - English DB - MTMT ER - TY - GEN AU - Kiss, Károly Miklós AU - Lőrincz, László AU - Lengyel, Balázs AU - Csáfordi, Zsolt TI - Hogyan alakítják a vállalatok termékportfóliójukat válság idején? PY - 2023 UR - https://m2.mtmt.hu/api/publication/33731630 ID - 33731630 LA - Hungarian DB - MTMT ER -